Create pages

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yuin 2024-02-03 20:02:44 +09:00
parent b8d6d3a9b7
commit 7a272efb46
106 changed files with 3227 additions and 45411 deletions

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goldmark has [https://github.com/yuin/goldmark/discussions](Discussions) in github.
You should post only issues here. Feature requests and questions should be posted at discussions.
- [ ] goldmark is fully compliant with the CommonMark. Before submitting issue, you **must** read [CommonMark spec](https://spec.commonmark.org/0.29/) and confirm your output is different from [CommonMark online demo](https://spec.commonmark.org/dingus/).
- [ ] **Extensions(Autolink without `<` `>`, Table, etc) are not part of CommonMark spec.** You should confirm your output is different from other official renderers correspond with an extension.
- [ ] **goldmark is not dedicated for Hugo**. If you are Hugo user and your issue was raised by your experience in Hugo, **you should consider create issue at Hugo repository at first** .
Please answer the following before submitting your issue:
1. What version of goldmark are you using? :
2. What version of Go are you using? :
3. What operating system and processor architecture are you using? :
4. What did you do? :
5. What did you expect to see? :
6. What did you see instead? :
7. Did you confirm your output is different from [CommonMark online demo](https://spec.commonmark.org/dingus/) or other official renderer correspond with an extension?:

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name: Close inactive issues
on:
schedule:
- cron: "30 9 * * *"
jobs:
close-issues:
runs-on: ubuntu-latest
permissions:
issues: write
pull-requests: write
steps:
- uses: actions/stale@v5
with:
days-before-issue-stale: 30
days-before-issue-close: 14
stale-issue-label: "stale"
stale-issue-message: "This issue is stale because it has been open for 30 days with no activity."
close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale."
exempt-issue-labels: "pinned,security"
days-before-pr-stale: 180
days-before-pr-close: 14
stale-pr-label: "stale"
stale-pr-message: "This PR is stale because it has been open for 180 days with no activity."
close-pr-message: "This PR was closed because it has been inactive for 14 days since being marked as stale."
exempt-pr-labels: "pinned,security"
repo-token: ${{ secrets.GITHUB_TOKEN }}

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on: [push, pull_request]
name: test
jobs:
test:
strategy:
fail-fast: false
matrix:
go-version: [1.19.x, 1.20.x]
platform: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.platform }}
steps:
- name: Install Go
uses: actions/setup-go@v4
with:
go-version: ${{ matrix.go-version }}
- name: Checkout code
uses: actions/checkout@v3
- name: Run lints
uses: golangci/golangci-lint-action@v3
with:
version: latest
if: "matrix.platform == 'ubuntu-latest'" # gofmt linter fails on Windows for CRLF problems
- name: Run tests
run: go test -v ./... -covermode=count -coverprofile=coverage.out -coverpkg=./...
- name: Send coverage
if: "matrix.platform == 'ubuntu-latest'"
env:
COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
GO111MODULE=off go get github.com/mattn/goveralls
$(go env GOPATH)/bin/goveralls -coverprofile=coverage.out -service=github

4
.gitignore vendored
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*.out
.DS_Store
fuzz/corpus
fuzz/crashers
fuzz/suppressions
fuzz/fuzz-fuzz.zip

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MIT License
Copyright (c) 2019 Yusuke Inuzuka
Copyright (c) 2024 Yusuke Inuzuka
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

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.PHONY: test fuzz lint
lint:
golangci-lint run -c .golangci.yml ./...
test:
go test -coverprofile=profile.out -coverpkg=github.com/yuin/goldmark,github.com/yuin/goldmark/ast,github.com/yuin/goldmark/extension,github.com/yuin/goldmark/extension/ast,github.com/yuin/goldmark/parser,github.com/yuin/goldmark/renderer,github.com/yuin/goldmark/renderer/html,github.com/yuin/goldmark/text,github.com/yuin/goldmark/util ./...
cov: test
go tool cover -html=profile.out
fuzz:
cd ./fuzz && go test -fuzz=Fuzz

565
README.md
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goldmark
goldmark websites
==========================================
[![https://pkg.go.dev/github.com/yuin/goldmark](https://pkg.go.dev/badge/github.com/yuin/goldmark.svg)](https://pkg.go.dev/github.com/yuin/goldmark)
[![https://github.com/yuin/goldmark/actions?query=workflow:test](https://github.com/yuin/goldmark/workflows/test/badge.svg?branch=master&event=push)](https://github.com/yuin/goldmark/actions?query=workflow:test)
[![https://coveralls.io/github/yuin/goldmark](https://coveralls.io/repos/github/yuin/goldmark/badge.svg?branch=master)](https://coveralls.io/github/yuin/goldmark)
[![https://goreportcard.com/report/github.com/yuin/goldmark](https://goreportcard.com/badge/github.com/yuin/goldmark)](https://goreportcard.com/report/github.com/yuin/goldmark)
> A Markdown parser written in Go. Easy to extend, standards-compliant, well-structured.
goldmark is compliant with CommonMark 0.31.2.
Motivation
----------------------
I needed a Markdown parser for Go that satisfies the following requirements:
- Easy to extend.
- Markdown is poor in document expressions compared to other light markup languages such as reStructuredText.
- We have extensions to the Markdown syntax, e.g. PHP Markdown Extra, GitHub Flavored Markdown.
- Standards-compliant.
- Markdown has many dialects.
- GitHub-Flavored Markdown is widely used and is based upon CommonMark, effectively mooting the question of whether or not CommonMark is an ideal specification.
- CommonMark is complicated and hard to implement.
- Well-structured.
- AST-based; preserves source position of nodes.
- Written in pure Go.
[golang-commonmark](https://gitlab.com/golang-commonmark/markdown) may be a good choice, but it seems to be a copy of [markdown-it](https://github.com/markdown-it).
[blackfriday.v2](https://github.com/russross/blackfriday/tree/v2) is a fast and widely-used implementation, but is not CommonMark-compliant and cannot be extended from outside of the package, since its AST uses structs instead of interfaces.
Furthermore, its behavior differs from other implementations in some cases, especially regarding lists: [Deep nested lists don't output correctly #329](https://github.com/russross/blackfriday/issues/329), [List block cannot have a second line #244](https://github.com/russross/blackfriday/issues/244), etc.
This behavior sometimes causes problems. If you migrate your Markdown text from GitHub to blackfriday-based wikis, many lists will immediately be broken.
As mentioned above, CommonMark is complicated and hard to implement, so Markdown parsers based on CommonMark are few and far between.
Features
----------------------
- **Standards-compliant.** goldmark is fully compliant with the latest [CommonMark](https://commonmark.org/) specification.
- **Extensible.** Do you want to add a `@username` mention syntax to Markdown?
You can easily do so in goldmark. You can add your AST nodes,
parsers for block-level elements, parsers for inline-level elements,
transformers for paragraphs, transformers for the whole AST structure, and
renderers.
- **Performance.** goldmark's performance is on par with that of cmark,
the CommonMark reference implementation written in C.
- **Robust.** goldmark is tested with `go test --fuzz`.
- **Built-in extensions.** goldmark ships with common extensions like tables, strikethrough,
task lists, and definition lists.
- **Depends only on standard libraries.**
Installation
----------------------
```bash
$ go get github.com/yuin/goldmark
```
Usage
----------------------
Import packages:
```go
import (
"bytes"
"github.com/yuin/goldmark"
)
```
Convert Markdown documents with the CommonMark-compliant mode:
```go
var buf bytes.Buffer
if err := goldmark.Convert(source, &buf); err != nil {
panic(err)
}
```
With options
------------------------------
```go
var buf bytes.Buffer
if err := goldmark.Convert(source, &buf, parser.WithContext(ctx)); err != nil {
panic(err)
}
```
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `parser.WithContext` | A `parser.Context` | Context for the parsing phase. |
Context options
----------------------
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `parser.WithIDs` | A `parser.IDs` | `IDs` allows you to change logics that are related to element id(ex: Auto heading id generation). |
Custom parser and renderer
--------------------------
```go
import (
"bytes"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
)
md := goldmark.New(
goldmark.WithExtensions(extension.GFM),
goldmark.WithParserOptions(
parser.WithAutoHeadingID(),
),
goldmark.WithRendererOptions(
html.WithHardWraps(),
html.WithXHTML(),
),
)
var buf bytes.Buffer
if err := md.Convert(source, &buf); err != nil {
panic(err)
}
```
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `goldmark.WithParser` | `parser.Parser` | This option must be passed before `goldmark.WithParserOptions` and `goldmark.WithExtensions` |
| `goldmark.WithRenderer` | `renderer.Renderer` | This option must be passed before `goldmark.WithRendererOptions` and `goldmark.WithExtensions` |
| `goldmark.WithParserOptions` | `...parser.Option` | |
| `goldmark.WithRendererOptions` | `...renderer.Option` | |
| `goldmark.WithExtensions` | `...goldmark.Extender` | |
Parser and Renderer options
------------------------------
### Parser options
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `parser.WithBlockParsers` | A `util.PrioritizedSlice` whose elements are `parser.BlockParser` | Parsers for parsing block level elements. |
| `parser.WithInlineParsers` | A `util.PrioritizedSlice` whose elements are `parser.InlineParser` | Parsers for parsing inline level elements. |
| `parser.WithParagraphTransformers` | A `util.PrioritizedSlice` whose elements are `parser.ParagraphTransformer` | Transformers for transforming paragraph nodes. |
| `parser.WithASTTransformers` | A `util.PrioritizedSlice` whose elements are `parser.ASTTransformer` | Transformers for transforming an AST. |
| `parser.WithAutoHeadingID` | `-` | Enables auto heading ids. |
| `parser.WithAttribute` | `-` | Enables custom attributes. Currently only headings supports attributes. |
### HTML Renderer options
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `html.WithWriter` | `html.Writer` | `html.Writer` for writing contents to an `io.Writer`. |
| `html.WithHardWraps` | `-` | Render newlines as `<br>`.|
| `html.WithXHTML` | `-` | Render as XHTML. |
| `html.WithUnsafe` | `-` | By default, goldmark does not render raw HTML or potentially dangerous links. With this option, goldmark renders such content as written. |
### Built-in extensions
- `extension.Table`
- [GitHub Flavored Markdown: Tables](https://github.github.com/gfm/#tables-extension-)
- `extension.Strikethrough`
- [GitHub Flavored Markdown: Strikethrough](https://github.github.com/gfm/#strikethrough-extension-)
- `extension.Linkify`
- [GitHub Flavored Markdown: Autolinks](https://github.github.com/gfm/#autolinks-extension-)
- `extension.TaskList`
- [GitHub Flavored Markdown: Task list items](https://github.github.com/gfm/#task-list-items-extension-)
- `extension.GFM`
- This extension enables Table, Strikethrough, Linkify and TaskList.
- This extension does not filter tags defined in [6.11: Disallowed Raw HTML (extension)](https://github.github.com/gfm/#disallowed-raw-html-extension-).
If you need to filter HTML tags, see [Security](#security).
- If you need to parse github emojis, you can use [goldmark-emoji](https://github.com/yuin/goldmark-emoji) extension.
- `extension.DefinitionList`
- [PHP Markdown Extra: Definition lists](https://michelf.ca/projects/php-markdown/extra/#def-list)
- `extension.Footnote`
- [PHP Markdown Extra: Footnotes](https://michelf.ca/projects/php-markdown/extra/#footnotes)
- `extension.Typographer`
- This extension substitutes punctuations with typographic entities like [smartypants](https://daringfireball.net/projects/smartypants/).
- `extension.CJK`
- This extension is a shortcut for CJK related functionalities.
### Attributes
The `parser.WithAttribute` option allows you to define attributes on some elements.
Currently only headings support attributes.
**Attributes are being discussed in the
[CommonMark forum](https://talk.commonmark.org/t/consistent-attribute-syntax/272).
This syntax may possibly change in the future.**
#### Headings
```
## heading ## {#id .className attrName=attrValue class="class1 class2"}
## heading {#id .className attrName=attrValue class="class1 class2"}
```
```
heading {#id .className attrName=attrValue}
============
```
### Table extension
The Table extension implements [Table(extension)](https://github.github.com/gfm/#tables-extension-), as
defined in [GitHub Flavored Markdown Spec](https://github.github.com/gfm/).
Specs are defined for XHTML, so specs use some deprecated attributes for HTML5.
You can override alignment rendering method via options.
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `extension.WithTableCellAlignMethod` | `extension.TableCellAlignMethod` | Option indicates how are table cells aligned. |
### Typographer extension
The Typographer extension translates plain ASCII punctuation characters into typographic-punctuation HTML entities.
Default substitutions are:
| Punctuation | Default entity |
| ------------ | ---------- |
| `'` | `&lsquo;`, `&rsquo;` |
| `"` | `&ldquo;`, `&rdquo;` |
| `--` | `&ndash;` |
| `---` | `&mdash;` |
| `...` | `&hellip;` |
| `<<` | `&laquo;` |
| `>>` | `&raquo;` |
You can override the default substitutions via `extensions.WithTypographicSubstitutions`:
```go
markdown := goldmark.New(
goldmark.WithExtensions(
extension.NewTypographer(
extension.WithTypographicSubstitutions(extension.TypographicSubstitutions{
extension.LeftSingleQuote: []byte("&sbquo;"),
extension.RightSingleQuote: nil, // nil disables a substitution
}),
),
),
)
```
### Linkify extension
The Linkify extension implements [Autolinks(extension)](https://github.github.com/gfm/#autolinks-extension-), as
defined in [GitHub Flavored Markdown Spec](https://github.github.com/gfm/).
Since the spec does not define details about URLs, there are numerous ambiguous cases.
You can override autolinking patterns via options.
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `extension.WithLinkifyAllowedProtocols` | `[][]byte \| []string` | List of allowed protocols such as `[]string{ "http:" }` |
| `extension.WithLinkifyURLRegexp` | `*regexp.Regexp` | Regexp that defines URLs, including protocols |
| `extension.WithLinkifyWWWRegexp` | `*regexp.Regexp` | Regexp that defines URL starting with `www.`. This pattern corresponds to [the extended www autolink](https://github.github.com/gfm/#extended-www-autolink) |
| `extension.WithLinkifyEmailRegexp` | `*regexp.Regexp` | Regexp that defines email addresses` |
Example, using [xurls](https://github.com/mvdan/xurls):
```go
import "mvdan.cc/xurls/v2"
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
extension.NewLinkify(
extension.WithLinkifyAllowedProtocols([]string{
"http:",
"https:",
}),
extension.WithLinkifyURLRegexp(
xurls.Strict,
),
),
),
)
```
### Footnotes extension
The Footnote extension implements [PHP Markdown Extra: Footnotes](https://michelf.ca/projects/php-markdown/extra/#footnotes).
This extension has some options:
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `extension.WithFootnoteIDPrefix` | `[]byte \| string` | a prefix for the id attributes.|
| `extension.WithFootnoteIDPrefixFunction` | `func(gast.Node) []byte` | a function that determines the id attribute for given Node.|
| `extension.WithFootnoteLinkTitle` | `[]byte \| string` | an optional title attribute for footnote links.|
| `extension.WithFootnoteBacklinkTitle` | `[]byte \| string` | an optional title attribute for footnote backlinks. |
| `extension.WithFootnoteLinkClass` | `[]byte \| string` | a class for footnote links. This defaults to `footnote-ref`. |
| `extension.WithFootnoteBacklinkClass` | `[]byte \| string` | a class for footnote backlinks. This defaults to `footnote-backref`. |
| `extension.WithFootnoteBacklinkHTML` | `[]byte \| string` | a class for footnote backlinks. This defaults to `&#x21a9;&#xfe0e;`. |
Some options can have special substitutions. Occurrences of “^^” in the string will be replaced by the corresponding footnote number in the HTML output. Occurrences of “%%” will be replaced by a number for the reference (footnotes can have multiple references).
`extension.WithFootnoteIDPrefix` and `extension.WithFootnoteIDPrefixFunction` are useful if you have multiple Markdown documents displayed inside one HTML document to avoid footnote ids to clash each other.
`extension.WithFootnoteIDPrefix` sets fixed id prefix, so you may write codes like the following:
```go
for _, path := range files {
source := readAll(path)
prefix := getPrefix(path)
markdown := goldmark.New(
goldmark.WithExtensions(
NewFootnote(
WithFootnoteIDPrefix(path),
),
),
)
var b bytes.Buffer
err := markdown.Convert(source, &b)
if err != nil {
t.Error(err.Error())
}
}
```
`extension.WithFootnoteIDPrefixFunction` determines an id prefix by calling given function, so you may write codes like the following:
```go
markdown := goldmark.New(
goldmark.WithExtensions(
NewFootnote(
WithFootnoteIDPrefixFunction(func(n gast.Node) []byte {
v, ok := n.OwnerDocument().Meta()["footnote-prefix"]
if ok {
return util.StringToReadOnlyBytes(v.(string))
}
return nil
}),
),
),
)
for _, path := range files {
source := readAll(path)
var b bytes.Buffer
doc := markdown.Parser().Parse(text.NewReader(source))
doc.Meta()["footnote-prefix"] = getPrefix(path)
err := markdown.Renderer().Render(&b, source, doc)
}
```
You can use [goldmark-meta](https://github.com/yuin/goldmark-meta) to define a id prefix in the markdown document:
```markdown
---
title: document title
slug: article1
footnote-prefix: article1
---
# My article
```
### CJK extension
CommonMark gives compatibilities a high priority and original markdown was designed by westerners. So CommonMark lacks considerations for languages like CJK.
This extension provides additional options for CJK users.
| Functional option | Type | Description |
| ----------------- | ---- | ----------- |
| `extension.WithEastAsianLineBreaks` | `...extension.EastAsianLineBreaksStyle` | Soft line breaks are rendered as a newline. Some asian users will see it as an unnecessary space. With this option, soft line breaks between east asian wide characters will be ignored. This defaults to `EastAsianLineBreaksStyleSimple`. |
| `extension.WithEscapedSpace` | `-` | Without spaces around an emphasis started with east asian punctuations, it is not interpreted as an emphasis(as defined in CommonMark spec). With this option, you can avoid this inconvenient behavior by putting 'not rendered' spaces around an emphasis like `太郎は\ **「こんにちわ」**\ といった`. |
#### Styles of Line Breaking
| Style | Description |
| ----- | ----------- |
| `EastAsianLineBreaksStyleSimple` | Soft line breaks are ignored if both sides of the break are east asian wide character. This behavior is the same as [`east_asian_line_breaks`](https://pandoc.org/MANUAL.html#extension-east_asian_line_breaks) in Pandoc. |
| `EastAsianLineBreaksCSS3Draft` | This option implements CSS text level3 [Segment Break Transformation Rules](https://drafts.csswg.org/css-text-3/#line-break-transform) with [some enhancements](https://github.com/w3c/csswg-drafts/issues/5086). |
#### Example of `EastAsianLineBreaksStyleSimple`
Input Markdown:
```md
私はプログラマーです。
東京の会社に勤めています。
GoでWebアプリケーションを開発しています。
```
Output:
```html
<p>私はプログラマーです。東京の会社に勤めています。\nGoでWebアプリケーションを開発しています。</p>
```
#### Example of `EastAsianLineBreaksCSS3Draft`
Input Markdown:
```md
私はプログラマーです。
東京の会社に勤めています。
GoでWebアプリケーションを開発しています。
```
Output:
```html
<p>私はプログラマーです。東京の会社に勤めています。GoでWebアプリケーションを開発しています。</p>
```
Security
--------------------
By default, goldmark does not render raw HTML or potentially-dangerous URLs.
If you need to gain more control over untrusted contents, it is recommended that you
use an HTML sanitizer such as [bluemonday](https://github.com/microcosm-cc/bluemonday).
Benchmark
--------------------
You can run this benchmark in the `_benchmark` directory.
### against other golang libraries
blackfriday v2 seems to be the fastest, but as it is not CommonMark compliant, its performance cannot be directly compared to that of the CommonMark-compliant libraries.
goldmark, meanwhile, builds a clean, extensible AST structure, achieves full compliance with
CommonMark, and consumes less memory, all while being reasonably fast.
- MBP 2019 13″(i5, 16GB), Go1.17
```
BenchmarkMarkdown/Blackfriday-v2-8 302 3743747 ns/op 3290445 B/op 20050 allocs/op
BenchmarkMarkdown/GoldMark-8 280 4200974 ns/op 2559738 B/op 13435 allocs/op
BenchmarkMarkdown/CommonMark-8 226 5283686 ns/op 2702490 B/op 20792 allocs/op
BenchmarkMarkdown/Lute-8 12 92652857 ns/op 10602649 B/op 40555 allocs/op
BenchmarkMarkdown/GoMarkdown-8 13 81380167 ns/op 2245002 B/op 22889 allocs/op
```
### against cmark (CommonMark reference implementation written in C)
- MBP 2019 13″(i5, 16GB), Go1.17
```
----------- cmark -----------
file: _data.md
iteration: 50
average: 0.0044073057 sec
------- goldmark -------
file: _data.md
iteration: 50
average: 0.0041611990 sec
```
As you can see, goldmark's performance is on par with cmark's.
Extensions
--------------------
### List of extensions
- [goldmark-meta](https://github.com/yuin/goldmark-meta): A YAML metadata
extension for the goldmark Markdown parser.
- [goldmark-highlighting](https://github.com/yuin/goldmark-highlighting): A syntax-highlighting extension
for the goldmark markdown parser.
- [goldmark-emoji](https://github.com/yuin/goldmark-emoji): An emoji
extension for the goldmark Markdown parser.
- [goldmark-mathjax](https://github.com/litao91/goldmark-mathjax): Mathjax support for the goldmark markdown parser
- [goldmark-pdf](https://github.com/stephenafamo/goldmark-pdf): A PDF renderer that can be passed to `goldmark.WithRenderer()`.
- [goldmark-hashtag](https://github.com/abhinav/goldmark-hashtag): Adds support for `#hashtag`-based tagging to goldmark.
- [goldmark-wikilink](https://github.com/abhinav/goldmark-wikilink): Adds support for `[[wiki]]`-style links to goldmark.
- [goldmark-anchor](https://github.com/abhinav/goldmark-anchor): Adds anchors (permalinks) next to all headers in a document.
- [goldmark-figure](https://github.com/mangoumbrella/goldmark-figure): Adds support for rendering paragraphs starting with an image to `<figure>` elements.
- [goldmark-frontmatter](https://github.com/abhinav/goldmark-frontmatter): Adds support for YAML, TOML, and custom front matter to documents.
- [goldmark-toc](https://github.com/abhinav/goldmark-toc): Adds support for generating tables-of-contents for goldmark documents.
- [goldmark-mermaid](https://github.com/abhinav/goldmark-mermaid): Adds support for rendering [Mermaid](https://mermaid-js.github.io/mermaid/) diagrams in goldmark documents.
- [goldmark-pikchr](https://github.com/jchenry/goldmark-pikchr): Adds support for rendering [Pikchr](https://pikchr.org/home/doc/trunk/homepage.md) diagrams in goldmark documents.
- [goldmark-embed](https://github.com/13rac1/goldmark-embed): Adds support for rendering embeds from YouTube links.
- [goldmark-latex](https://github.com/soypat/goldmark-latex): A $\LaTeX$ renderer that can be passed to `goldmark.WithRenderer()`.
- [goldmark-fences](https://github.com/stefanfritsch/goldmark-fences): Support for pandoc-style [fenced divs](https://pandoc.org/MANUAL.html#divs-and-spans) in goldmark.
- [goldmark-d2](https://github.com/FurqanSoftware/goldmark-d2): Adds support for [D2](https://d2lang.com/) diagrams.
- [goldmark-katex](https://github.com/FurqanSoftware/goldmark-katex): Adds support for [KaTeX](https://katex.org/) math and equations.
- [goldmark-img64](https://github.com/tenkoh/goldmark-img64): Adds support for embedding images into the document as DataURL (base64 encoded).
- [goldmark-enclave](https://github.com/quail-ink/goldmark-enclave): Adds support for embedding youtube/bilibili video, X's [oembed tweet](https://publish.twitter.com/), [tradingview](https://www.tradingview.com/widget/)'s chart, [quail](https://quail.ink)'s widget into the document.
- [goldmark-wiki-table](https://github.com/movsb/goldmark-wiki-table): Adds support for embedding Wiki Tables.
### Loading extensions at runtime
[goldmark-dynamic](https://github.com/yuin/goldmark-dynamic) allows you to write a goldmark extension in Lua and load it at runtime without re-compilation.
Please refer to [goldmark-dynamic](https://github.com/yuin/goldmark-dynamic) for details.
goldmark internal(for extension developers)
----------------------------------------------
### Overview
goldmark's Markdown processing is outlined in the diagram below.
```
<Markdown in []byte, parser.Context>
|
V
+-------- parser.Parser ---------------------------
| 1. Parse block elements into AST
| 1. If a parsed block is a paragraph, apply
| ast.ParagraphTransformer
| 2. Traverse AST and parse blocks.
| 1. Process delimiters(emphasis) at the end of
| block parsing
| 3. Apply parser.ASTTransformers to AST
|
V
<ast.Node>
|
V
+------- renderer.Renderer ------------------------
| 1. Traverse AST and apply renderer.NodeRenderer
| corespond to the node type
|
V
<Output>
```
### Parsing
Markdown documents are read through `text.Reader` interface.
AST nodes do not have concrete text. AST nodes have segment information of the documents, represented by `text.Segment` .
`text.Segment` has 3 attributes: `Start`, `End`, `Padding` .
(TBC)
**TODO**
See `extension` directory for examples of extensions.
Summary:
1. Define AST Node as a struct in which `ast.BaseBlock` or `ast.BaseInline` is embedded.
2. Write a parser that implements `parser.BlockParser` or `parser.InlineParser`.
3. Write a renderer that implements `renderer.NodeRenderer`.
4. Define your goldmark extension that implements `goldmark.Extender`.
Donation
--------------------
BTC: 1NEDSyUmo4SMTDP83JJQSWi1MvQUGGNMZB
License
--------------------
MIT
Author
--------------------
Yusuke Inuzuka
- playground

View file

@ -1,2 +0,0 @@
cmark-master
cmark_benchmark

View file

@ -1,42 +0,0 @@
CMARK_BIN=cmark_benchmark
CMARK_RUN=LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:./cmark-master/build/src ./$(CMARK_BIN)
ifeq ($(OS),Windows_NT)
CMARK_BIN=cmark_benchmark.exe
CMARK_RUN=bash -c "PATH=./cmark-master/build/src:$${PATH} ./$(CMARK_BIN)"
endif
ifneq ($(WSL_INTEROP),)
CMARK_BIN=cmark_benchmark.exe
CMARK_RUN=cp ./cmark-master/build-mingw/windows/bin/libcmark.dll . && ./$(CMARK_BIN); rm -f libcmark.dll
endif
.PHONY: run
run: $(CMARK_BIN)
@ $(CMARK_RUN)
@ if [ -z "$${WSL_INTEROP}" ]; then \
go run ./goldmark_benchmark.go; \
else \
GOOS=windows GOARCH=amd64 go build -o goldmark_benchmark.exe ./goldmark_benchmark.go && ./goldmark_benchmark.exe; \
fi
./cmark-master/Makefile:
wget -nc -O cmark.zip https://github.com/commonmark/cmark/archive/master.zip
unzip cmark.zip
rm -f cmark.zip
@ if [ -z "$${WSL_INTEROP}" ]; then \
cd cmark-master && make; \
else \
cd cmark-master && make mingw; \
fi
$(CMARK_BIN): ./cmark-master/Makefile
@ if [ -z "$${WSL_INTEROP}" ]; then \
gcc -I./cmark-master/build/src -I./cmark-master/src cmark_benchmark.c -o $(CMARK_BIN) -L./cmark-master/build/src -lcmark; \
else \
i686-w64-mingw32-gcc -I./cmark-master/build-mingw/windows/include cmark_benchmark.c -o $(CMARK_BIN) -L./cmark-master/build-mingw/windows/lib -lcmark.dll; \
fi
.PHONY: clean
clean:
rm -f $(CMARK_BIN)
rm -f goldmark_benchmark.exe

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@ -1,91 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#ifdef WIN32
# include <windows.h>
#else
# include <sys/time.h>
# include <sys/resource.h>
#endif
#include "cmark.h"
#ifdef WIN32
double get_time()
{
LARGE_INTEGER t, f;
QueryPerformanceCounter(&t);
QueryPerformanceFrequency(&f);
return (double)t.QuadPart/(double)f.QuadPart;
}
#else
double get_time()
{
struct timeval t;
struct timezone tzp;
gettimeofday(&t, &tzp);
return t.tv_sec + t.tv_usec*1e-6;
}
#endif
int main(int argc, char **argv) {
char *markdown_file;
FILE *fp;
size_t size;
char *buf;
char *html;
double start, sum;
int i, n;
n = argc > 1 ? atoi(argv[1]) : 50;
markdown_file = argc > 2 ? argv[2] : "_data.md";
fp = fopen(markdown_file,"r");
if(fp == NULL){
fprintf(stderr, "can not open %s", markdown_file);
exit(1);
}
if(fseek(fp, 0, SEEK_END) != 0) {
fprintf(stderr, "can not seek %s", markdown_file);
exit(1);
}
if((size = ftell(fp)) < 0) {
fprintf(stderr, "can not get size of %s", markdown_file);
exit(1);
}
if(fseek(fp, 0, SEEK_SET) != 0) {
fprintf(stderr, "can not seek %s", markdown_file);
exit(1);
}
buf = malloc(sizeof(char) * size);
if(buf == NULL) {
fprintf(stderr, "can not allocate memory for %s", markdown_file);
exit(1);
}
if(fread(buf, 1, size, fp) < size) {
fprintf(stderr, "failed to read for %s", markdown_file);
exit(1);
}
fclose(fp);
for(i = 0; i < n; i++) {
start = get_time();
html = cmark_markdown_to_html(buf, size, CMARK_OPT_UNSAFE);
free(html);
sum += get_time() - start;
}
printf("----------- cmark -----------\n");
printf("file: %s\n", markdown_file);
printf("iteration: %d\n", n);
printf("average: %.10f sec\n", sum / (double)n);
free(buf);
return 0;
}

View file

@ -1,45 +0,0 @@
package main
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"strconv"
"time"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
)
func main() {
n := 50
file := "_data.md"
if len(os.Args) > 1 {
n, _ = strconv.Atoi(os.Args[1])
}
if len(os.Args) > 2 {
file = os.Args[2]
}
source, err := ioutil.ReadFile(file)
if err != nil {
panic(err)
}
markdown := goldmark.New(goldmark.WithRendererOptions(html.WithXHTML(), html.WithUnsafe()))
var out bytes.Buffer
markdown.Convert([]byte(""), &out)
sum := time.Duration(0)
for i := 0; i < n; i++ {
start := time.Now()
out.Reset()
if err := markdown.Convert(source, &out); err != nil {
panic(err)
}
sum += time.Since(start)
}
fmt.Printf("------- goldmark -------\n")
fmt.Printf("file: %s\n", file)
fmt.Printf("iteration: %d\n", n)
fmt.Printf("average: %.10f sec\n", float64((int64(sum)/int64(n)))/1000000000.0)
}

File diff suppressed because it is too large Load diff

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@ -1,95 +0,0 @@
package benchmark
import (
"bytes"
"io/ioutil"
"testing"
gomarkdown "github.com/gomarkdown/markdown"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/util"
"gitlab.com/golang-commonmark/markdown"
"github.com/russross/blackfriday/v2"
"github.com/88250/lute"
)
func BenchmarkMarkdown(b *testing.B) {
b.Run("Blackfriday-v2", func(b *testing.B) {
r := func(src []byte) ([]byte, error) {
out := blackfriday.Run(src)
return out, nil
}
doBenchmark(b, r)
})
b.Run("GoldMark", func(b *testing.B) {
markdown := goldmark.New(
goldmark.WithRendererOptions(html.WithXHTML(), html.WithUnsafe()),
)
r := func(src []byte) ([]byte, error) {
var out bytes.Buffer
err := markdown.Convert(src, &out)
return out.Bytes(), err
}
doBenchmark(b, r)
})
b.Run("CommonMark", func(b *testing.B) {
md := markdown.New(markdown.XHTMLOutput(true))
r := func(src []byte) ([]byte, error) {
var out bytes.Buffer
err := md.Render(&out, src)
return out.Bytes(), err
}
doBenchmark(b, r)
})
b.Run("Lute", func(b *testing.B) {
luteEngine := lute.New()
luteEngine.SetGFMAutoLink(false)
luteEngine.SetGFMStrikethrough(false)
luteEngine.SetGFMTable(false)
luteEngine.SetGFMTaskListItem(false)
luteEngine.SetCodeSyntaxHighlight(false)
luteEngine.SetSoftBreak2HardBreak(false)
luteEngine.SetAutoSpace(false)
luteEngine.SetFixTermTypo(false)
r := func(src []byte) ([]byte, error) {
out := luteEngine.MarkdownStr("Benchmark", util.BytesToReadOnlyString(src))
return util.StringToReadOnlyBytes(out), nil
}
doBenchmark(b, r)
})
b.Run("GoMarkdown", func(b *testing.B) {
r := func(src []byte) ([]byte, error) {
out := gomarkdown.ToHTML(src, nil, nil)
return out, nil
}
doBenchmark(b, r)
})
}
// The different frameworks have different APIs. Create an adapter that
// should behave the same in the memory department.
func doBenchmark(b *testing.B, render func(src []byte) ([]byte, error)) {
b.StopTimer()
source, err := ioutil.ReadFile("_data.md")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
out, err := render(source)
if err != nil {
b.Fatal(err)
}
if len(out) < 100 {
b.Fatal("No result")
}
}
}

View file

@ -1,24 +0,0 @@
module banchmark
go 1.17
require (
github.com/88250/lute v1.7.5
github.com/gomarkdown/markdown v0.0.0-20230322041520-c84983bdbf2a
github.com/russross/blackfriday/v2 v2.1.0
github.com/yuin/goldmark v1.2.1
gitlab.com/golang-commonmark/markdown v0.0.0-20211110145824-bf3e522c626a
)
require (
github.com/alecthomas/chroma v0.10.0 // indirect
github.com/dlclark/regexp2 v1.10.0 // indirect
github.com/gopherjs/gopherjs v1.17.2 // indirect
gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181 // indirect
gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82 // indirect
gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84 // indirect
gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f // indirect
golang.org/x/text v0.10.0 // indirect
)
replace gopkg.in/russross/blackfriday.v2 v2.0.1 => github.com/russross/blackfriday/v2 v2.0.1

View file

@ -1,42 +0,0 @@
github.com/88250/lute v1.7.5 h1:mcPFURh5sK1WH1kFRjqK5DkMWOfVN2BhyrXitN8GmpQ=
github.com/88250/lute v1.7.5/go.mod h1:cEoBGi0zArPqAsp0MdG9SKinvH/xxZZWXU7sRx8vHSA=
github.com/alecthomas/chroma v0.10.0 h1:7XDcGkCQopCNKjZHfYrNLraA+M7e0fMiJ/Mfikbfjek=
github.com/alecthomas/chroma v0.10.0/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
github.com/dlclark/regexp2 v1.10.0 h1:+/GIL799phkJqYW+3YbOd8LCcbHzT0Pbo8zl70MHsq0=
github.com/dlclark/regexp2 v1.10.0/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
github.com/gomarkdown/markdown v0.0.0-20230322041520-c84983bdbf2a h1:AWZzzFrqyjYlRloN6edwTLTUbKxf5flLXNuTBDm3Ews=
github.com/gomarkdown/markdown v0.0.0-20230322041520-c84983bdbf2a/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
github.com/gopherjs/gopherjs v1.17.2/go.mod h1:pRRIvn/QzFLrKfvEz3qUuEhtE/zLCWfreZ6J5gM2i+k=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/yuin/goldmark v1.2.1 h1:ruQGxdhGHe7FWOJPT0mKs5+pD2Xs1Bm/kdGlHO04FmM=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181 h1:K+bMSIx9A7mLES1rtG+qKduLIXq40DAzYHtb0XuCukA=
gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181/go.mod h1:dzYhVIwWCtzPAa4QP98wfB9+mzt33MSmM8wsKiMi2ow=
gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82 h1:oYrL81N608MLZhma3ruL8qTM4xcpYECGut8KSxRY59g=
gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82/go.mod h1:Gn+LZmCrhPECMD3SOKlE+BOHwhOYD9j7WT9NUtkCrC8=
gitlab.com/golang-commonmark/markdown v0.0.0-20211110145824-bf3e522c626a h1:O85GKETcmnCNAfv4Aym9tepU8OE0NmcZNqPlXcsBKBs=
gitlab.com/golang-commonmark/markdown v0.0.0-20211110145824-bf3e522c626a/go.mod h1:LaSIs30YPGs1H5jwGgPhLzc8vkNc/k0rDX/fEZqiU/M=
gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84 h1:qqjvoVXdWIcZCLPMlzgA7P9FZWdPGPvP/l3ef8GzV6o=
gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84/go.mod h1:IJZ+fdMvbW2qW6htJx7sLJ04FEs4Ldl/MDsJtMKywfw=
gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f h1:Wku8eEdeJqIOFHtrfkYUByc4bCaTeA6fL0UJgfEiFMI=
gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f/go.mod h1:Tiuhl+njh/JIg0uS/sOJVYi0x2HEa5rc1OAaVsb5tAs=
gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638 h1:uPZaMiz6Sz0PZs3IZJWpU5qHKGNy///1pacZC9txiUI=
gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638/go.mod h1:EGRJaqe2eO9XGmFtQCvV3Lm9NLico3UhFwUpCG/+mVU=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.10.0 h1:UpjohKhiEgNc0CSauXmwYftY1+LlaC75SJwh0SgCX58=
golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

View file

@ -1,782 +0,0 @@
1
//- - - - - - - - -//
* A
B
//- - - - - - - - -//
<ul>
<li>A
B</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
**test**\
test**test**\
**test**test\
test**test**
//- - - - - - - - -//
<p><strong>test</strong><br />
test<strong>test</strong><br />
<strong>test</strong>test<br />
test<strong>test</strong></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
>* >
> 1
> 2
>3
//- - - - - - - - -//
<blockquote>
<ul>
<li>
<blockquote>
</blockquote>
</li>
</ul>
<p>1
2
3</p>
</blockquote>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
`test`a`test`
//- - - - - - - - -//
<p><code>test</code>a<code>test</code></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5
//- - - - - - - - -//
_**TL/DR** - [Go see summary.](#my-summary-area)_
//- - - - - - - - -//
<p><em><strong>TL/DR</strong> - <a href="#my-summary-area">Go see summary.</a></em></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6
//- - - - - - - - -//
[This link won't be rendered
correctly](https://geeksocket.in/some-long-link-here "This is the
place where everything breaks")
//- - - - - - - - -//
<p><a href="https://geeksocket.in/some-long-link-here" title="This is the
place where everything breaks">This link won't be rendered
correctly</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
7
//- - - - - - - - -//
[](./target.md)
//- - - - - - - - -//
<p><a href="./target.md"></a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
8
//- - - - - - - - -//
[]()
//- - - - - - - - -//
<p><a href=""></a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
9
//- - - - - - - - -//
[daß] is the old german spelling of [dass]
[daß]: www.das-dass.de
//- - - - - - - - -//
<p><a href="www.das-dass.de">daß</a> is the old german spelling of <a href="www.das-dass.de">dass</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
10
//- - - - - - - - -//
1. First step.
~~~
aaa
---
bbb
~~~
2. few other steps.
//- - - - - - - - -//
<ol>
<li>
<p>First step.</p>
<pre><code>aaa
---
bbb
</code></pre>
</li>
<li>
<p>few other steps.</p>
</li>
</ol>
//= = = = = = = = = = = = = = = = = = = = = = = =//
11: delimiters between ascii punctuations should be parsed
//- - - - - - - - -//
`{%`_name_`%}`
//- - - - - - - - -//
<p><code>{%</code><em>name</em><code>%}</code></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
12: the alt attribute of img should be escaped
//- - - - - - - - -//
!["](quot.jpg)
!['](apos.jpg)
![<](lt.jpg)
![>](gt.jpg)
![&](amp.jpg)
//- - - - - - - - -//
<p><img src="quot.jpg" alt="&quot;" />
<img src="apos.jpg" alt="'" />
<img src="lt.jpg" alt="&lt;" />
<img src="gt.jpg" alt="&gt;" />
<img src="amp.jpg" alt="&amp;" /></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
13: fenced code block starting with tab inside list
//- - - - - - - - -//
* foo
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
14: fenced code block inside list, mismatched tab start
//- - - - - - - - -//
* foo
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
15: fenced code block inside nested list
//- - - - - - - - -//
* foo
- bar
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<ul>
<li>bar
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
16: indented code block starting with a tab.
//- - - - - - - - -//
* foo
foo
foo
//- - - - - - - - -//
<ul>
<li>
<p>foo</p>
<pre><code>foo
foo
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
17: fenced code block in list, empty line, spaces on start
//- - - - - - - - -//
* foo
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
18: fenced code block in list, empty line, no spaces on start
//- - - - - - - - -//
* foo
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
19: fenced code block inside nested list, empty line, spaces on start
//- - - - - - - - -//
* foo
- bar
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<ul>
<li>bar
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
20: fenced code block inside nested list, empty line, no space on start
//- - - - - - - - -//
* foo
- bar
```Makefile
foo
foo
```
//- - - - - - - - -//
<ul>
<li>foo
<ul>
<li>bar
<pre><code class="language-Makefile">foo
foo
</code></pre>
</li>
</ul>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
21: Fenced code block within list can start with tab
//- - - - - - - - -//
- List
```
A
B
C
```
//- - - - - - - - -//
<ul>
<li>
<p>List</p>
<pre><code>A
B
C
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
22: Indented code block within list can start with tab
//- - - - - - - - -//
- List
A
B
C
a
//- - - - - - - - -//
<ul>
<li>
<p>List</p>
<pre><code>A
B
C
</code></pre>
</li>
</ul>
<p>a</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
23: Emphasis corner case(yuin/goldmark#245)
//- - - - - - - - -//
a* b c d *e*
//- - - - - - - - -//
<p>a* b c d <em>e</em></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
24: HTML block tags can contain trailing spaces
//- - - - - - - - -//
<aaa >
//- - - - - - - - -//
<aaa >
//= = = = = = = = = = = = = = = = = = = = = = = =//
25: Indented code blocks can start with tab
//- - - - - - - - -//
x
//- - - - - - - - -//
<pre><code> x</code></pre>
//= = = = = = = = = = = = = = = = = = = = = = = =//
26: NUL bytes must be replaced with U+FFFD
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
hello\x00world
<?\x00
//- - - - - - - - -//
<p>hello\ufffdworld</p>
<?\uFFFD
//= = = = = = = = = = = = = = = = = = = = = = = =//
27: Newlines in code spans must be preserved as a space
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
`\n`
`x\n`
`\nx`
//- - - - - - - - -//
<p><code> </code></p>
<p><code>x </code></p>
<p><code> x</code></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
28: Single # is a heading level 1
//- - - - - - - - -//
#
//- - - - - - - - -//
<h1></h1>
//= = = = = = = = = = = = = = = = = = = = = = = =//
29: An empty list item cannot interrupt a paragraph
//- - - - - - - - -//
x
*
//- - - - - - - - -//
<p>x
*</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
30: A link reference definition followed by a single quote without closer
//- - - - - - - - -//
[x]
[x]: <>
'
//- - - - - - - - -//
<p><a href="">x</a></p>
<p>'</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
31: A link reference definition followed by a double quote without closer
//- - - - - - - - -//
[x]
[x]: <>
"
//- - - - - - - - -//
<p><a href="">x</a></p>
<p>&quot;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
32: Hex character entities must be limited to 6 characters
//- - - - - - - - -//
&#x0000041;
//- - - - - - - - -//
<p>&amp;#x0000041;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
33: \x01 should be escaped all the time
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
[x](\x01)
//- - - - - - - - -//
<p><a href="%01">x</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
34: A form feed should not be treated as a space
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
x \f
//- - - - - - - - -//
<p>x \f</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
35: A link reference definition can contain a new line
//- - - - - - - - -//
This is a [test][foo
bar] 1...2..3...
[foo bar]: /
//- - - - - - - - -//
<p>This is a <a href="/">test</a> 1...2..3...</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
36: Emphasis and links
//- - - - - - - - -//
_a[b_c_](d)
//- - - - - - - - -//
<p>_a<a href="d">b_c_</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
37: Tabs and spaces
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
\t\t x\n
//- - - - - - - - -//
<pre><code>\t x\n</code></pre>
//= = = = = = = = = = = = = = = = = = = = = = = =//
38: Decimal HTML entity literals should allow 7 digits
//- - - - - - - - -//
&#7654321;
//- - - - - - - - -//
<p>\uFFFD</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
39: Decimal HTML entities should not be interpreted as octal when starting with a 0
//- - - - - - - - -//
&#0100;
//- - - - - - - - -//
<p>d</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
40: Invalid HTML tag names
//- - - - - - - - -//
<1>
<a:>
<a\f>
< p>
//- - - - - - - - -//
<p>&lt;1&gt;</p>
<p>&lt;a:&gt;</p>
<p>&lt;a\f&gt;</p>
<p>&lt; p&gt;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
41: Link references can not contain spaces after link label
//- - - - - - - - -//
[x]
:>
[o] :x
//- - - - - - - - -//
<p>[x]
:&gt;</p>
<p>[o] :x</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
42: Unclosed link reference titles can interrupt link references
//- - - - - - - - -//
[r]:
<>
'
[o]:
x
'
//- - - - - - - - -//
<p>'</p>
<p>'</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
43: A link containing an image containing a link should disable the outer link
//- - - - - - - - -//
[ ![ [b](c) ](x) ](y)
//- - - - - - - - -//
<p>[ <img src="x" alt=" b " /> ](y)</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
44: An empty list item(with trailing spaces) cannot interrupt a paragraph
//- - - - - - - - -//
a
*
//- - - - - - - - -//
<p>a
*</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
45: Multiple empty list items
//- - - - - - - - -//
-
-
//- - - - - - - - -//
<ul>
<li></li>
<li></li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
46: Vertical tab should not be treated as spaces
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
\v
//- - - - - - - - -//
<p>\v</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
47: Escape back slashes should not be treated as hard line breaks
//- - - - - - - - -//
\\\\
a
//- - - - - - - - -//
<p>\
a</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
48: Multiple paragraphs in tight list
//- - - - - - - - -//
- a
>
b
//- - - - - - - - -//
<ul>
<li>a
<blockquote>
</blockquote>
b</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
49: A list item that is indented up to 3 spaces after an empty list item
//- - - - - - - - -//
1.
1. b
-
- b
//- - - - - - - - -//
<ol>
<li></li>
<li>
<p>b</p>
</li>
</ol>
<ul>
<li></li>
<li>
<p>b</p>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
50: Spaces before a visible hard linebreak should be preserved
//- - - - - - - - -//
a \
b
//- - - - - - - - -//
<p>a <br />
b</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
51: Empty line in a fenced code block under list items
//- - - - - - - - -//
* This is a list item
```
This is a test
This line will be dropped.
This line will be displayed.
```
//- - - - - - - - -//
<ul>
<li>This is a list item
<pre><code>This is a test
This line will be dropped.
This line will be displayed.
</code></pre>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
52: windows-style newline and HTMLs
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
<a \r\nhref='link'>link</a>
<video autoplay muted loop>\r\n<source src=\"https://example.com/example.mp4\" type=\"video/mp4\">\r\nYour browser does not support the video tag.\r\n</video>
//- - - - - - - - -//
<p><a \r\nhref='link'>link</a></p>
<video autoplay muted loop>\r\n<source src=\"https://example.com/example.mp4\" type=\"video/mp4\">\r\nYour browser does not support the video tag.\r\n</video>
//= = = = = = = = = = = = = = = = = = = = = = = =//
53: HTML comment without trailing new lines
OPTIONS: {"trim": true}
//- - - - - - - - -//
<!--
-->
//- - - - - - - - -//
<!--
-->
//= = = = = = = = = = = = = = = = = = = = = = = =//
54: Escaped characters followed by a null character
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
\\\x00\"
//- - - - - - - - -//
<p>\\\ufffd&quot;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
55: inline HTML comment
//- - - - - - - - -//
a <!-- b --> c
a <!-- b -->
//- - - - - - - - -//
<p>a <!-- b --> c</p>
<p>a <!-- b --></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
56: An empty list followed by blockquote
//- - - - - - - - -//
1.
> This is a quote.
//- - - - - - - - -//
<ol>
<li></li>
</ol>
<blockquote>
<p>This is a quote.</p>
</blockquote>
//= = = = = = = = = = = = = = = = = = = = = = = =//
57: Tabbed fenced code block within a list
//- - - - - - - - -//
1.
```
```
//- - - - - - - - -//
<ol>
<li>
<pre><code></code></pre>
</li>
</ol>
//= = = = = = = = = = = = = = = = = = = = = = = =//
58: HTML end tag without trailing new lines
OPTIONS: {"trim": true}
//- - - - - - - - -//
<pre>
</pre>
//- - - - - - - - -//
<pre>
</pre>
//= = = = = = = = = = = = = = = = = = = = = = = =//
59: Raw HTML tag with one new line
//- - - - - - - - -//
<img src=./.assets/logo.svg
/>
//- - - - - - - - -//
<p><img src=./.assets/logo.svg
/></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
60: Raw HTML tag with multiple new lines
//- - - - - - - - -//
<img src=./.assets/logo.svg
/>
//- - - - - - - - -//
<p>&lt;img src=./.assets/logo.svg</p>
<p>/&gt;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
61: Image alt with a new line
//- - - - - - - - -//
![alt
text](logo.png)
//- - - - - - - - -//
<p><img src="logo.png" alt="alt
text" /></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,78 +0,0 @@
1
//- - - - - - - - -//
## Title 0
## Title1 # {#id_1 .class-1}
## Title2 {#id_2}
## Title3 ## {#id_3 .class-3}
## Title4 ## {data-attr3=value3}
## Title5 ## {#id_5 data-attr5=value5}
## Title6 ## {#id_6 .class6 data-attr6=value6}
## Title7 ## {#id_7 data-attr7="value \"7"}
## Title8 {#id .className data-attrName=attrValue class="class1 class2"}
//- - - - - - - - -//
<h2 id="title-0">Title 0</h2>
<h2 id="id_1" class="class-1">Title1</h2>
<h2 id="id_2">Title2</h2>
<h2 id="id_3" class="class-3">Title3</h2>
<h2 data-attr3="value3" id="title4">Title4</h2>
<h2 id="id_5" data-attr5="value5">Title5</h2>
<h2 id="id_6" class="class6" data-attr6="value6">Title6</h2>
<h2 id="id_7" data-attr7="value &quot;7">Title7</h2>
<h2 id="id" class="className class1 class2" data-attrName="attrValue">Title8</h2>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
#
# FOO
//- - - - - - - - -//
<h1 id="heading"></h1>
<h1 id="foo">FOO</h1>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
## `records(self, zone, params={})`
//- - - - - - - - -//
<h2 id="recordsself-zone-params"><code>records(self, zone, params={})</code></h2>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
## Test {#hey .sort,class=fine,class=shell} Doesn't matter
//- - - - - - - - -//
<h2 id="test-hey-sortclassfineclassshell-doesnt-matter">Test {#hey .sort,class=fine,class=shell} Doesn't matter</h2>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5
//- - - - - - - - -//
## Test ## {#hey .sort,class=fine,class=shell} Doesn't matter
//- - - - - - - - -//
<h2 id="test--hey-sortclassfineclassshell-doesnt-matter">Test ## {#hey .sort,class=fine,class=shell} Doesn't matter</h2>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6: class must be a string
//- - - - - - - - -//
# Test ## {class=0#.}
//- - - - - - - - -//
<h1 id="test--class0">Test ## {class=0#.}</h1>
//= = = = = = = = = = = = = = = = = = = = = = = =//
7: short handed ids can contain hyphens ("-"), underscores ("_"), colons (":"), and periods (".")
//- - - - - - - - -//
# Test ## {#id-foo_bar:baz.qux .foobar}
//- - - - - - - - -//
<h1 id="id-foo_bar:baz.qux" class="foobar">Test</h1>
//= = = = = = = = = = = = = = = = = = = = = = = =//

File diff suppressed because it is too large Load diff

View file

@ -1,61 +0,0 @@
package main
import (
"archive/zip"
"encoding/json"
"io/ioutil"
"log"
"os"
"strconv"
"strings"
)
type TestCase struct {
Example int `json:"example"`
Markdown string `json:"markdown"`
}
func main() {
corpus_out := os.Args[1]
if !strings.HasSuffix(corpus_out, ".zip") {
log.Fatalln("Expected command line:", os.Args[0], "<corpus_output>.zip")
}
zip_file, err := os.Create(corpus_out)
zip_writer := zip.NewWriter(zip_file)
if err != nil {
log.Fatalln("Failed creating file:", err)
}
json_corpus := "_test/spec.json"
bs, err := ioutil.ReadFile(json_corpus)
if err != nil {
log.Fatalln("Could not open file:", json_corpus)
panic(err)
}
var testCases []TestCase
if err := json.Unmarshal(bs, &testCases); err != nil {
panic(err)
}
for _, c := range testCases {
file_in_zip := "example-" + strconv.Itoa(c.Example)
f, err := zip_writer.Create(file_in_zip)
if err != nil {
log.Fatal(err)
}
_, err = f.Write([]byte(c.Markdown))
if err != nil {
log.Fatalf("Failed to write file: %s into zip file", file_in_zip)
}
}
err = zip_writer.Close()
if err != nil {
log.Fatal("Failed to close zip writer", err)
}
zip_file.Close()
}

View file

@ -1,73 +0,0 @@
package main
import (
"bufio"
"bytes"
"fmt"
"io/ioutil"
"net/http"
"os"
"strconv"
"strings"
)
const outPath = "../util/unicode_case_folding.go"
type caseFolding struct {
Class byte
From rune
To []rune
}
func main() {
url := "http://www.unicode.org/Public/14.0.0/ucd/CaseFolding.txt"
resp, err := http.Get(url)
if err != nil {
fmt.Printf("Failed to get CaseFolding.txt: %v\n", err)
os.Exit(1)
}
defer resp.Body.Close()
bs, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Printf("Failed to get CaseFolding.txt: %v\n", err)
os.Exit(1)
}
buf := bytes.NewBuffer(bs)
scanner := bufio.NewScanner(buf)
f, err := os.Create(outPath)
if err != nil {
fmt.Printf("Failed to open %s: %v\n", outPath, err)
os.Exit(1)
}
defer f.Close()
_, _ = f.WriteString("package util\n\n")
_, _ = f.WriteString("var unicodeCaseFoldings = map[rune][]rune {\n")
for scanner.Scan() {
line := scanner.Text()
if strings.HasPrefix(line, "#") || len(strings.TrimSpace(line)) == 0 {
continue
}
line = strings.Split(line, "#")[0]
parts := strings.Split(line, ";")
for i, p := range parts {
parts[i] = strings.TrimSpace(p)
}
cf := caseFolding{}
v, _ := strconv.ParseInt(parts[0], 16, 32)
cf.From = rune(int32(v))
cf.Class = parts[1][0]
for _, v := range strings.Split(parts[2], " ") {
c, _ := strconv.ParseInt(v, 16, 32)
cf.To = append(cf.To, rune(int32(c)))
}
if cf.Class != 'C' && cf.Class != 'F' {
continue
}
fmt.Fprintf(f, " %#x : %#v,\n", cf.From, cf.To)
}
fmt.Fprintf(f, "}\n")
}

View file

@ -1,508 +0,0 @@
// Package ast defines AST nodes that represent markdown elements.
package ast
import (
"bytes"
"fmt"
"strings"
textm "github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
// A NodeType indicates what type a node belongs to.
type NodeType int
const (
// TypeBlock indicates that a node is kind of block nodes.
TypeBlock NodeType = iota + 1
// TypeInline indicates that a node is kind of inline nodes.
TypeInline
// TypeDocument indicates that a node is kind of document nodes.
TypeDocument
)
// NodeKind indicates more specific type than NodeType.
type NodeKind int
func (k NodeKind) String() string {
return kindNames[k]
}
var kindMax NodeKind
var kindNames = []string{""}
// NewNodeKind returns a new Kind value.
func NewNodeKind(name string) NodeKind {
kindMax++
kindNames = append(kindNames, name)
return kindMax
}
// An Attribute is an attribute of the Node.
type Attribute struct {
Name []byte
Value interface{}
}
// A Node interface defines basic AST node functionalities.
type Node interface {
// Type returns a type of this node.
Type() NodeType
// Kind returns a kind of this node.
Kind() NodeKind
// NextSibling returns a next sibling node of this node.
NextSibling() Node
// PreviousSibling returns a previous sibling node of this node.
PreviousSibling() Node
// Parent returns a parent node of this node.
Parent() Node
// SetParent sets a parent node to this node.
SetParent(Node)
// SetPreviousSibling sets a previous sibling node to this node.
SetPreviousSibling(Node)
// SetNextSibling sets a next sibling node to this node.
SetNextSibling(Node)
// HasChildren returns true if this node has any children, otherwise false.
HasChildren() bool
// ChildCount returns a total number of children.
ChildCount() int
// FirstChild returns a first child of this node.
FirstChild() Node
// LastChild returns a last child of this node.
LastChild() Node
// AppendChild append a node child to the tail of the children.
AppendChild(self, child Node)
// RemoveChild removes a node child from this node.
// If a node child is not children of this node, RemoveChild nothing to do.
RemoveChild(self, child Node)
// RemoveChildren removes all children from this node.
RemoveChildren(self Node)
// SortChildren sorts childrens by comparator.
SortChildren(comparator func(n1, n2 Node) int)
// ReplaceChild replace a node v1 with a node insertee.
// If v1 is not children of this node, ReplaceChild append a insetee to the
// tail of the children.
ReplaceChild(self, v1, insertee Node)
// InsertBefore inserts a node insertee before a node v1.
// If v1 is not children of this node, InsertBefore append a insetee to the
// tail of the children.
InsertBefore(self, v1, insertee Node)
// InsertAfterinserts a node insertee after a node v1.
// If v1 is not children of this node, InsertBefore append a insetee to the
// tail of the children.
InsertAfter(self, v1, insertee Node)
// OwnerDocument returns this node's owner document.
// If this node is not a child of the Document node, OwnerDocument
// returns nil.
OwnerDocument() *Document
// Dump dumps an AST tree structure to stdout.
// This function completely aimed for debugging.
// level is a indent level. Implementer should indent informations with
// 2 * level spaces.
Dump(source []byte, level int)
// Text returns text values of this node.
Text(source []byte) []byte
// HasBlankPreviousLines returns true if the row before this node is blank,
// otherwise false.
// This method is valid only for block nodes.
HasBlankPreviousLines() bool
// SetBlankPreviousLines sets whether the row before this node is blank.
// This method is valid only for block nodes.
SetBlankPreviousLines(v bool)
// Lines returns text segments that hold positions in a source.
// This method is valid only for block nodes.
Lines() *textm.Segments
// SetLines sets text segments that hold positions in a source.
// This method is valid only for block nodes.
SetLines(*textm.Segments)
// IsRaw returns true if contents should be rendered as 'raw' contents.
IsRaw() bool
// SetAttribute sets the given value to the attributes.
SetAttribute(name []byte, value interface{})
// SetAttributeString sets the given value to the attributes.
SetAttributeString(name string, value interface{})
// Attribute returns a (attribute value, true) if an attribute
// associated with the given name is found, otherwise
// (nil, false)
Attribute(name []byte) (interface{}, bool)
// AttributeString returns a (attribute value, true) if an attribute
// associated with the given name is found, otherwise
// (nil, false)
AttributeString(name string) (interface{}, bool)
// Attributes returns a list of attributes.
// This may be a nil if there are no attributes.
Attributes() []Attribute
// RemoveAttributes removes all attributes from this node.
RemoveAttributes()
}
// A BaseNode struct implements the Node interface partialliy.
type BaseNode struct {
firstChild Node
lastChild Node
parent Node
next Node
prev Node
childCount int
attributes []Attribute
}
func ensureIsolated(v Node) {
if p := v.Parent(); p != nil {
p.RemoveChild(p, v)
}
}
// HasChildren implements Node.HasChildren .
func (n *BaseNode) HasChildren() bool {
return n.firstChild != nil
}
// SetPreviousSibling implements Node.SetPreviousSibling .
func (n *BaseNode) SetPreviousSibling(v Node) {
n.prev = v
}
// SetNextSibling implements Node.SetNextSibling .
func (n *BaseNode) SetNextSibling(v Node) {
n.next = v
}
// PreviousSibling implements Node.PreviousSibling .
func (n *BaseNode) PreviousSibling() Node {
return n.prev
}
// NextSibling implements Node.NextSibling .
func (n *BaseNode) NextSibling() Node {
return n.next
}
// RemoveChild implements Node.RemoveChild .
func (n *BaseNode) RemoveChild(self, v Node) {
if v.Parent() != self {
return
}
n.childCount--
prev := v.PreviousSibling()
next := v.NextSibling()
if prev != nil {
prev.SetNextSibling(next)
} else {
n.firstChild = next
}
if next != nil {
next.SetPreviousSibling(prev)
} else {
n.lastChild = prev
}
v.SetParent(nil)
v.SetPreviousSibling(nil)
v.SetNextSibling(nil)
}
// RemoveChildren implements Node.RemoveChildren .
func (n *BaseNode) RemoveChildren(self Node) {
for c := n.firstChild; c != nil; {
c.SetParent(nil)
c.SetPreviousSibling(nil)
next := c.NextSibling()
c.SetNextSibling(nil)
c = next
}
n.firstChild = nil
n.lastChild = nil
n.childCount = 0
}
// SortChildren implements Node.SortChildren.
func (n *BaseNode) SortChildren(comparator func(n1, n2 Node) int) {
var sorted Node
current := n.firstChild
for current != nil {
next := current.NextSibling()
if sorted == nil || comparator(sorted, current) >= 0 {
current.SetNextSibling(sorted)
if sorted != nil {
sorted.SetPreviousSibling(current)
}
sorted = current
sorted.SetPreviousSibling(nil)
} else {
c := sorted
for c.NextSibling() != nil && comparator(c.NextSibling(), current) < 0 {
c = c.NextSibling()
}
current.SetNextSibling(c.NextSibling())
current.SetPreviousSibling(c)
if c.NextSibling() != nil {
c.NextSibling().SetPreviousSibling(current)
}
c.SetNextSibling(current)
}
current = next
}
n.firstChild = sorted
for c := n.firstChild; c != nil; c = c.NextSibling() {
n.lastChild = c
}
}
// FirstChild implements Node.FirstChild .
func (n *BaseNode) FirstChild() Node {
return n.firstChild
}
// LastChild implements Node.LastChild .
func (n *BaseNode) LastChild() Node {
return n.lastChild
}
// ChildCount implements Node.ChildCount .
func (n *BaseNode) ChildCount() int {
return n.childCount
}
// Parent implements Node.Parent .
func (n *BaseNode) Parent() Node {
return n.parent
}
// SetParent implements Node.SetParent .
func (n *BaseNode) SetParent(v Node) {
n.parent = v
}
// AppendChild implements Node.AppendChild .
func (n *BaseNode) AppendChild(self, v Node) {
ensureIsolated(v)
if n.firstChild == nil {
n.firstChild = v
v.SetNextSibling(nil)
v.SetPreviousSibling(nil)
} else {
last := n.lastChild
last.SetNextSibling(v)
v.SetPreviousSibling(last)
}
v.SetParent(self)
n.lastChild = v
n.childCount++
}
// ReplaceChild implements Node.ReplaceChild .
func (n *BaseNode) ReplaceChild(self, v1, insertee Node) {
n.InsertBefore(self, v1, insertee)
n.RemoveChild(self, v1)
}
// InsertAfter implements Node.InsertAfter .
func (n *BaseNode) InsertAfter(self, v1, insertee Node) {
n.InsertBefore(self, v1.NextSibling(), insertee)
}
// InsertBefore implements Node.InsertBefore .
func (n *BaseNode) InsertBefore(self, v1, insertee Node) {
n.childCount++
if v1 == nil {
n.AppendChild(self, insertee)
return
}
ensureIsolated(insertee)
if v1.Parent() == self {
c := v1
prev := c.PreviousSibling()
if prev != nil {
prev.SetNextSibling(insertee)
insertee.SetPreviousSibling(prev)
} else {
n.firstChild = insertee
insertee.SetPreviousSibling(nil)
}
insertee.SetNextSibling(c)
c.SetPreviousSibling(insertee)
insertee.SetParent(self)
}
}
// OwnerDocument implements Node.OwnerDocument.
func (n *BaseNode) OwnerDocument() *Document {
d := n.Parent()
for {
p := d.Parent()
if p == nil {
if v, ok := d.(*Document); ok {
return v
}
break
}
d = p
}
return nil
}
// Text implements Node.Text .
func (n *BaseNode) Text(source []byte) []byte {
var buf bytes.Buffer
for c := n.firstChild; c != nil; c = c.NextSibling() {
buf.Write(c.Text(source))
}
return buf.Bytes()
}
// SetAttribute implements Node.SetAttribute.
func (n *BaseNode) SetAttribute(name []byte, value interface{}) {
if n.attributes == nil {
n.attributes = make([]Attribute, 0, 10)
} else {
for i, a := range n.attributes {
if bytes.Equal(a.Name, name) {
n.attributes[i].Name = name
n.attributes[i].Value = value
return
}
}
}
n.attributes = append(n.attributes, Attribute{name, value})
}
// SetAttributeString implements Node.SetAttributeString.
func (n *BaseNode) SetAttributeString(name string, value interface{}) {
n.SetAttribute(util.StringToReadOnlyBytes(name), value)
}
// Attribute implements Node.Attribute.
func (n *BaseNode) Attribute(name []byte) (interface{}, bool) {
if n.attributes == nil {
return nil, false
}
for i, a := range n.attributes {
if bytes.Equal(a.Name, name) {
return n.attributes[i].Value, true
}
}
return nil, false
}
// AttributeString implements Node.AttributeString.
func (n *BaseNode) AttributeString(s string) (interface{}, bool) {
return n.Attribute(util.StringToReadOnlyBytes(s))
}
// Attributes implements Node.Attributes.
func (n *BaseNode) Attributes() []Attribute {
return n.attributes
}
// RemoveAttributes implements Node.RemoveAttributes.
func (n *BaseNode) RemoveAttributes() {
n.attributes = nil
}
// DumpHelper is a helper function to implement Node.Dump.
// kv is pairs of an attribute name and an attribute value.
// cb is a function called after wrote a name and attributes.
func DumpHelper(v Node, source []byte, level int, kv map[string]string, cb func(int)) {
name := v.Kind().String()
indent := strings.Repeat(" ", level)
fmt.Printf("%s%s {\n", indent, name)
indent2 := strings.Repeat(" ", level+1)
if v.Type() == TypeBlock {
fmt.Printf("%sRawText: \"", indent2)
for i := 0; i < v.Lines().Len(); i++ {
line := v.Lines().At(i)
fmt.Printf("%s", line.Value(source))
}
fmt.Printf("\"\n")
fmt.Printf("%sHasBlankPreviousLines: %v\n", indent2, v.HasBlankPreviousLines())
}
for name, value := range kv {
fmt.Printf("%s%s: %s\n", indent2, name, value)
}
if cb != nil {
cb(level + 1)
}
for c := v.FirstChild(); c != nil; c = c.NextSibling() {
c.Dump(source, level+1)
}
fmt.Printf("%s}\n", indent)
}
// WalkStatus represents a current status of the Walk function.
type WalkStatus int
const (
// WalkStop indicates no more walking needed.
WalkStop WalkStatus = iota + 1
// WalkSkipChildren indicates that Walk wont walk on children of current
// node.
WalkSkipChildren
// WalkContinue indicates that Walk can continue to walk.
WalkContinue
)
// Walker is a function that will be called when Walk find a
// new node.
// entering is set true before walks children, false after walked children.
// If Walker returns error, Walk function immediately stop walking.
type Walker func(n Node, entering bool) (WalkStatus, error)
// Walk walks a AST tree by the depth first search algorithm.
func Walk(n Node, walker Walker) error {
_, err := walkHelper(n, walker)
return err
}
func walkHelper(n Node, walker Walker) (WalkStatus, error) {
status, err := walker(n, true)
if err != nil || status == WalkStop {
return status, err
}
if status != WalkSkipChildren {
for c := n.FirstChild(); c != nil; c = c.NextSibling() {
if st, err := walkHelper(c, walker); err != nil || st == WalkStop {
return WalkStop, err
}
}
}
status, err = walker(n, false)
if err != nil || status == WalkStop {
return WalkStop, err
}
return WalkContinue, nil
}

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@ -1,75 +0,0 @@
package ast
import (
"reflect"
"testing"
)
func TestRemoveChildren(t *testing.T) {
root := NewDocument()
node1 := NewDocument()
node2 := NewDocument()
root.AppendChild(root, node1)
root.AppendChild(root, node2)
root.RemoveChildren(root)
t.Logf("%+v", node2.PreviousSibling())
}
func TestWalk(t *testing.T) {
tests := []struct {
name string
node Node
want []NodeKind
action map[NodeKind]WalkStatus
}{
{
"visits all in depth first order",
node(NewDocument(), node(NewHeading(1), NewText()), NewLink()),
[]NodeKind{KindDocument, KindHeading, KindText, KindLink},
map[NodeKind]WalkStatus{},
},
{
"stops after heading",
node(NewDocument(), node(NewHeading(1), NewText()), NewLink()),
[]NodeKind{KindDocument, KindHeading},
map[NodeKind]WalkStatus{KindHeading: WalkStop},
},
{
"skip children",
node(NewDocument(), node(NewHeading(1), NewText()), NewLink()),
[]NodeKind{KindDocument, KindHeading, KindLink},
map[NodeKind]WalkStatus{KindHeading: WalkSkipChildren},
},
}
for _, tt := range tests {
var kinds []NodeKind
collectKinds := func(n Node, entering bool) (WalkStatus, error) {
if entering {
kinds = append(kinds, n.Kind())
}
if status, ok := tt.action[n.Kind()]; ok {
return status, nil
}
return WalkContinue, nil
}
t.Run(tt.name, func(t *testing.T) {
if err := Walk(tt.node, collectKinds); err != nil {
t.Errorf("Walk() error = %v", err)
} else if !reflect.DeepEqual(kinds, tt.want) {
t.Errorf("Walk() expected = %v, got = %v", tt.want, kinds)
}
})
}
}
func node(n Node, children ...Node) Node {
for _, c := range children {
n.AppendChild(n, c)
}
return n
}

View file

@ -1,508 +0,0 @@
package ast
import (
"fmt"
"strings"
textm "github.com/yuin/goldmark/text"
)
// A BaseBlock struct implements the Node interface partialliy.
type BaseBlock struct {
BaseNode
blankPreviousLines bool
lines *textm.Segments
}
// Type implements Node.Type.
func (b *BaseBlock) Type() NodeType {
return TypeBlock
}
// IsRaw implements Node.IsRaw.
func (b *BaseBlock) IsRaw() bool {
return false
}
// HasBlankPreviousLines implements Node.HasBlankPreviousLines.
func (b *BaseBlock) HasBlankPreviousLines() bool {
return b.blankPreviousLines
}
// SetBlankPreviousLines implements Node.SetBlankPreviousLines.
func (b *BaseBlock) SetBlankPreviousLines(v bool) {
b.blankPreviousLines = v
}
// Lines implements Node.Lines.
func (b *BaseBlock) Lines() *textm.Segments {
if b.lines == nil {
b.lines = textm.NewSegments()
}
return b.lines
}
// SetLines implements Node.SetLines.
func (b *BaseBlock) SetLines(v *textm.Segments) {
b.lines = v
}
// A Document struct is a root node of Markdown text.
type Document struct {
BaseBlock
meta map[string]interface{}
}
// KindDocument is a NodeKind of the Document node.
var KindDocument = NewNodeKind("Document")
// Dump implements Node.Dump .
func (n *Document) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// Type implements Node.Type .
func (n *Document) Type() NodeType {
return TypeDocument
}
// Kind implements Node.Kind.
func (n *Document) Kind() NodeKind {
return KindDocument
}
// OwnerDocument implements Node.OwnerDocument.
func (n *Document) OwnerDocument() *Document {
return n
}
// Meta returns metadata of this document.
func (n *Document) Meta() map[string]interface{} {
if n.meta == nil {
n.meta = map[string]interface{}{}
}
return n.meta
}
// SetMeta sets given metadata to this document.
func (n *Document) SetMeta(meta map[string]interface{}) {
if n.meta == nil {
n.meta = map[string]interface{}{}
}
for k, v := range meta {
n.meta[k] = v
}
}
// AddMeta adds given metadata to this document.
func (n *Document) AddMeta(key string, value interface{}) {
if n.meta == nil {
n.meta = map[string]interface{}{}
}
n.meta[key] = value
}
// NewDocument returns a new Document node.
func NewDocument() *Document {
return &Document{
BaseBlock: BaseBlock{},
meta: nil,
}
}
// A TextBlock struct is a node whose lines
// should be rendered without any containers.
type TextBlock struct {
BaseBlock
}
// Dump implements Node.Dump .
func (n *TextBlock) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// KindTextBlock is a NodeKind of the TextBlock node.
var KindTextBlock = NewNodeKind("TextBlock")
// Kind implements Node.Kind.
func (n *TextBlock) Kind() NodeKind {
return KindTextBlock
}
// NewTextBlock returns a new TextBlock node.
func NewTextBlock() *TextBlock {
return &TextBlock{
BaseBlock: BaseBlock{},
}
}
// A Paragraph struct represents a paragraph of Markdown text.
type Paragraph struct {
BaseBlock
}
// Dump implements Node.Dump .
func (n *Paragraph) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// KindParagraph is a NodeKind of the Paragraph node.
var KindParagraph = NewNodeKind("Paragraph")
// Kind implements Node.Kind.
func (n *Paragraph) Kind() NodeKind {
return KindParagraph
}
// NewParagraph returns a new Paragraph node.
func NewParagraph() *Paragraph {
return &Paragraph{
BaseBlock: BaseBlock{},
}
}
// IsParagraph returns true if the given node implements the Paragraph interface,
// otherwise false.
func IsParagraph(node Node) bool {
_, ok := node.(*Paragraph)
return ok
}
// A Heading struct represents headings like SetextHeading and ATXHeading.
type Heading struct {
BaseBlock
// Level returns a level of this heading.
// This value is between 1 and 6.
Level int
}
// Dump implements Node.Dump .
func (n *Heading) Dump(source []byte, level int) {
m := map[string]string{
"Level": fmt.Sprintf("%d", n.Level),
}
DumpHelper(n, source, level, m, nil)
}
// KindHeading is a NodeKind of the Heading node.
var KindHeading = NewNodeKind("Heading")
// Kind implements Node.Kind.
func (n *Heading) Kind() NodeKind {
return KindHeading
}
// NewHeading returns a new Heading node.
func NewHeading(level int) *Heading {
return &Heading{
BaseBlock: BaseBlock{},
Level: level,
}
}
// A ThematicBreak struct represents a thematic break of Markdown text.
type ThematicBreak struct {
BaseBlock
}
// Dump implements Node.Dump .
func (n *ThematicBreak) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// KindThematicBreak is a NodeKind of the ThematicBreak node.
var KindThematicBreak = NewNodeKind("ThematicBreak")
// Kind implements Node.Kind.
func (n *ThematicBreak) Kind() NodeKind {
return KindThematicBreak
}
// NewThematicBreak returns a new ThematicBreak node.
func NewThematicBreak() *ThematicBreak {
return &ThematicBreak{
BaseBlock: BaseBlock{},
}
}
// A CodeBlock interface represents an indented code block of Markdown text.
type CodeBlock struct {
BaseBlock
}
// IsRaw implements Node.IsRaw.
func (n *CodeBlock) IsRaw() bool {
return true
}
// Dump implements Node.Dump .
func (n *CodeBlock) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// KindCodeBlock is a NodeKind of the CodeBlock node.
var KindCodeBlock = NewNodeKind("CodeBlock")
// Kind implements Node.Kind.
func (n *CodeBlock) Kind() NodeKind {
return KindCodeBlock
}
// NewCodeBlock returns a new CodeBlock node.
func NewCodeBlock() *CodeBlock {
return &CodeBlock{
BaseBlock: BaseBlock{},
}
}
// A FencedCodeBlock struct represents a fenced code block of Markdown text.
type FencedCodeBlock struct {
BaseBlock
// Info returns a info text of this fenced code block.
Info *Text
language []byte
}
// Language returns an language in an info string.
// Language returns nil if this node does not have an info string.
func (n *FencedCodeBlock) Language(source []byte) []byte {
if n.language == nil && n.Info != nil {
segment := n.Info.Segment
info := segment.Value(source)
i := 0
for ; i < len(info); i++ {
if info[i] == ' ' {
break
}
}
n.language = info[:i]
}
return n.language
}
// IsRaw implements Node.IsRaw.
func (n *FencedCodeBlock) IsRaw() bool {
return true
}
// Dump implements Node.Dump .
func (n *FencedCodeBlock) Dump(source []byte, level int) {
m := map[string]string{}
if n.Info != nil {
m["Info"] = fmt.Sprintf("\"%s\"", n.Info.Text(source))
}
DumpHelper(n, source, level, m, nil)
}
// KindFencedCodeBlock is a NodeKind of the FencedCodeBlock node.
var KindFencedCodeBlock = NewNodeKind("FencedCodeBlock")
// Kind implements Node.Kind.
func (n *FencedCodeBlock) Kind() NodeKind {
return KindFencedCodeBlock
}
// NewFencedCodeBlock return a new FencedCodeBlock node.
func NewFencedCodeBlock(info *Text) *FencedCodeBlock {
return &FencedCodeBlock{
BaseBlock: BaseBlock{},
Info: info,
}
}
// A Blockquote struct represents an blockquote block of Markdown text.
type Blockquote struct {
BaseBlock
}
// Dump implements Node.Dump .
func (n *Blockquote) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// KindBlockquote is a NodeKind of the Blockquote node.
var KindBlockquote = NewNodeKind("Blockquote")
// Kind implements Node.Kind.
func (n *Blockquote) Kind() NodeKind {
return KindBlockquote
}
// NewBlockquote returns a new Blockquote node.
func NewBlockquote() *Blockquote {
return &Blockquote{
BaseBlock: BaseBlock{},
}
}
// A List struct represents a list of Markdown text.
type List struct {
BaseBlock
// Marker is a marker character like '-', '+', ')' and '.'.
Marker byte
// IsTight is a true if this list is a 'tight' list.
// See https://spec.commonmark.org/0.30/#loose for details.
IsTight bool
// Start is an initial number of this ordered list.
// If this list is not an ordered list, Start is 0.
Start int
}
// IsOrdered returns true if this list is an ordered list, otherwise false.
func (l *List) IsOrdered() bool {
return l.Marker == '.' || l.Marker == ')'
}
// CanContinue returns true if this list can continue with
// the given mark and a list type, otherwise false.
func (l *List) CanContinue(marker byte, isOrdered bool) bool {
return marker == l.Marker && isOrdered == l.IsOrdered()
}
// Dump implements Node.Dump.
func (l *List) Dump(source []byte, level int) {
m := map[string]string{
"Ordered": fmt.Sprintf("%v", l.IsOrdered()),
"Marker": fmt.Sprintf("%c", l.Marker),
"Tight": fmt.Sprintf("%v", l.IsTight),
}
if l.IsOrdered() {
m["Start"] = fmt.Sprintf("%d", l.Start)
}
DumpHelper(l, source, level, m, nil)
}
// KindList is a NodeKind of the List node.
var KindList = NewNodeKind("List")
// Kind implements Node.Kind.
func (l *List) Kind() NodeKind {
return KindList
}
// NewList returns a new List node.
func NewList(marker byte) *List {
return &List{
BaseBlock: BaseBlock{},
Marker: marker,
IsTight: true,
}
}
// A ListItem struct represents a list item of Markdown text.
type ListItem struct {
BaseBlock
// Offset is an offset position of this item.
Offset int
}
// Dump implements Node.Dump.
func (n *ListItem) Dump(source []byte, level int) {
m := map[string]string{
"Offset": fmt.Sprintf("%d", n.Offset),
}
DumpHelper(n, source, level, m, nil)
}
// KindListItem is a NodeKind of the ListItem node.
var KindListItem = NewNodeKind("ListItem")
// Kind implements Node.Kind.
func (n *ListItem) Kind() NodeKind {
return KindListItem
}
// NewListItem returns a new ListItem node.
func NewListItem(offset int) *ListItem {
return &ListItem{
BaseBlock: BaseBlock{},
Offset: offset,
}
}
// HTMLBlockType represents kinds of an html blocks.
// See https://spec.commonmark.org/0.30/#html-blocks
type HTMLBlockType int
const (
// HTMLBlockType1 represents type 1 html blocks.
HTMLBlockType1 HTMLBlockType = iota + 1
// HTMLBlockType2 represents type 2 html blocks.
HTMLBlockType2
// HTMLBlockType3 represents type 3 html blocks.
HTMLBlockType3
// HTMLBlockType4 represents type 4 html blocks.
HTMLBlockType4
// HTMLBlockType5 represents type 5 html blocks.
HTMLBlockType5
// HTMLBlockType6 represents type 6 html blocks.
HTMLBlockType6
// HTMLBlockType7 represents type 7 html blocks.
HTMLBlockType7
)
// An HTMLBlock struct represents an html block of Markdown text.
type HTMLBlock struct {
BaseBlock
// Type is a type of this html block.
HTMLBlockType HTMLBlockType
// ClosureLine is a line that closes this html block.
ClosureLine textm.Segment
}
// IsRaw implements Node.IsRaw.
func (n *HTMLBlock) IsRaw() bool {
return true
}
// HasClosure returns true if this html block has a closure line,
// otherwise false.
func (n *HTMLBlock) HasClosure() bool {
return n.ClosureLine.Start >= 0
}
// Dump implements Node.Dump.
func (n *HTMLBlock) Dump(source []byte, level int) {
indent := strings.Repeat(" ", level)
fmt.Printf("%s%s {\n", indent, "HTMLBlock")
indent2 := strings.Repeat(" ", level+1)
fmt.Printf("%sRawText: \"", indent2)
for i := 0; i < n.Lines().Len(); i++ {
s := n.Lines().At(i)
fmt.Print(string(source[s.Start:s.Stop]))
}
fmt.Printf("\"\n")
for c := n.FirstChild(); c != nil; c = c.NextSibling() {
c.Dump(source, level+1)
}
if n.HasClosure() {
cl := n.ClosureLine
fmt.Printf("%sClosure: \"%s\"\n", indent2, string(cl.Value(source)))
}
fmt.Printf("%s}\n", indent)
}
// KindHTMLBlock is a NodeKind of the HTMLBlock node.
var KindHTMLBlock = NewNodeKind("HTMLBlock")
// Kind implements Node.Kind.
func (n *HTMLBlock) Kind() NodeKind {
return KindHTMLBlock
}
// NewHTMLBlock returns a new HTMLBlock node.
func NewHTMLBlock(typ HTMLBlockType) *HTMLBlock {
return &HTMLBlock{
BaseBlock: BaseBlock{},
HTMLBlockType: typ,
ClosureLine: textm.NewSegment(-1, -1),
}
}

View file

@ -1,549 +0,0 @@
package ast
import (
"fmt"
"strings"
textm "github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
// A BaseInline struct implements the Node interface partialliy.
type BaseInline struct {
BaseNode
}
// Type implements Node.Type.
func (b *BaseInline) Type() NodeType {
return TypeInline
}
// IsRaw implements Node.IsRaw.
func (b *BaseInline) IsRaw() bool {
return false
}
// HasBlankPreviousLines implements Node.HasBlankPreviousLines.
func (b *BaseInline) HasBlankPreviousLines() bool {
panic("can not call with inline nodes.")
}
// SetBlankPreviousLines implements Node.SetBlankPreviousLines.
func (b *BaseInline) SetBlankPreviousLines(v bool) {
panic("can not call with inline nodes.")
}
// Lines implements Node.Lines.
func (b *BaseInline) Lines() *textm.Segments {
panic("can not call with inline nodes.")
}
// SetLines implements Node.SetLines.
func (b *BaseInline) SetLines(v *textm.Segments) {
panic("can not call with inline nodes.")
}
// A Text struct represents a textual content of the Markdown text.
type Text struct {
BaseInline
// Segment is a position in a source text.
Segment textm.Segment
flags uint8
}
const (
textSoftLineBreak = 1 << iota
textHardLineBreak
textRaw
textCode
)
func textFlagsString(flags uint8) string {
buf := []string{}
if flags&textSoftLineBreak != 0 {
buf = append(buf, "SoftLineBreak")
}
if flags&textHardLineBreak != 0 {
buf = append(buf, "HardLineBreak")
}
if flags&textRaw != 0 {
buf = append(buf, "Raw")
}
if flags&textCode != 0 {
buf = append(buf, "Code")
}
return strings.Join(buf, ", ")
}
// Inline implements Inline.Inline.
func (n *Text) Inline() {
}
// SoftLineBreak returns true if this node ends with a new line,
// otherwise false.
func (n *Text) SoftLineBreak() bool {
return n.flags&textSoftLineBreak != 0
}
// SetSoftLineBreak sets whether this node ends with a new line.
func (n *Text) SetSoftLineBreak(v bool) {
if v {
n.flags |= textSoftLineBreak
} else {
n.flags = n.flags &^ textSoftLineBreak
}
}
// IsRaw returns true if this text should be rendered without unescaping
// back slash escapes and resolving references.
func (n *Text) IsRaw() bool {
return n.flags&textRaw != 0
}
// SetRaw sets whether this text should be rendered as raw contents.
func (n *Text) SetRaw(v bool) {
if v {
n.flags |= textRaw
} else {
n.flags = n.flags &^ textRaw
}
}
// HardLineBreak returns true if this node ends with a hard line break.
// See https://spec.commonmark.org/0.30/#hard-line-breaks for details.
func (n *Text) HardLineBreak() bool {
return n.flags&textHardLineBreak != 0
}
// SetHardLineBreak sets whether this node ends with a hard line break.
func (n *Text) SetHardLineBreak(v bool) {
if v {
n.flags |= textHardLineBreak
} else {
n.flags = n.flags &^ textHardLineBreak
}
}
// Merge merges a Node n into this node.
// Merge returns true if the given node has been merged, otherwise false.
func (n *Text) Merge(node Node, source []byte) bool {
t, ok := node.(*Text)
if !ok {
return false
}
if n.Segment.Stop != t.Segment.Start || t.Segment.Padding != 0 ||
source[n.Segment.Stop-1] == '\n' || t.IsRaw() != n.IsRaw() {
return false
}
n.Segment.Stop = t.Segment.Stop
n.SetSoftLineBreak(t.SoftLineBreak())
n.SetHardLineBreak(t.HardLineBreak())
return true
}
// Text implements Node.Text.
func (n *Text) Text(source []byte) []byte {
return n.Segment.Value(source)
}
// Dump implements Node.Dump.
func (n *Text) Dump(source []byte, level int) {
fs := textFlagsString(n.flags)
if len(fs) != 0 {
fs = "(" + fs + ")"
}
fmt.Printf("%sText%s: \"%s\"\n", strings.Repeat(" ", level), fs, strings.TrimRight(string(n.Text(source)), "\n"))
}
// KindText is a NodeKind of the Text node.
var KindText = NewNodeKind("Text")
// Kind implements Node.Kind.
func (n *Text) Kind() NodeKind {
return KindText
}
// NewText returns a new Text node.
func NewText() *Text {
return &Text{
BaseInline: BaseInline{},
}
}
// NewTextSegment returns a new Text node with the given source position.
func NewTextSegment(v textm.Segment) *Text {
return &Text{
BaseInline: BaseInline{},
Segment: v,
}
}
// NewRawTextSegment returns a new Text node with the given source position.
// The new node should be rendered as raw contents.
func NewRawTextSegment(v textm.Segment) *Text {
t := &Text{
BaseInline: BaseInline{},
Segment: v,
}
t.SetRaw(true)
return t
}
// MergeOrAppendTextSegment merges a given s into the last child of the parent if
// it can be merged, otherwise creates a new Text node and appends it to after current
// last child.
func MergeOrAppendTextSegment(parent Node, s textm.Segment) {
last := parent.LastChild()
t, ok := last.(*Text)
if ok && t.Segment.Stop == s.Start && !t.SoftLineBreak() {
t.Segment = t.Segment.WithStop(s.Stop)
} else {
parent.AppendChild(parent, NewTextSegment(s))
}
}
// MergeOrReplaceTextSegment merges a given s into a previous sibling of the node n
// if a previous sibling of the node n is *Text, otherwise replaces Node n with s.
func MergeOrReplaceTextSegment(parent Node, n Node, s textm.Segment) {
prev := n.PreviousSibling()
if t, ok := prev.(*Text); ok && t.Segment.Stop == s.Start && !t.SoftLineBreak() {
t.Segment = t.Segment.WithStop(s.Stop)
parent.RemoveChild(parent, n)
} else {
parent.ReplaceChild(parent, n, NewTextSegment(s))
}
}
// A String struct is a textual content that has a concrete value.
type String struct {
BaseInline
Value []byte
flags uint8
}
// Inline implements Inline.Inline.
func (n *String) Inline() {
}
// IsRaw returns true if this text should be rendered without unescaping
// back slash escapes and resolving references.
func (n *String) IsRaw() bool {
return n.flags&textRaw != 0
}
// SetRaw sets whether this text should be rendered as raw contents.
func (n *String) SetRaw(v bool) {
if v {
n.flags |= textRaw
} else {
n.flags = n.flags &^ textRaw
}
}
// IsCode returns true if this text should be rendered without any
// modifications.
func (n *String) IsCode() bool {
return n.flags&textCode != 0
}
// SetCode sets whether this text should be rendered without any modifications.
func (n *String) SetCode(v bool) {
if v {
n.flags |= textCode
} else {
n.flags = n.flags &^ textCode
}
}
// Text implements Node.Text.
func (n *String) Text(source []byte) []byte {
return n.Value
}
// Dump implements Node.Dump.
func (n *String) Dump(source []byte, level int) {
fs := textFlagsString(n.flags)
if len(fs) != 0 {
fs = "(" + fs + ")"
}
fmt.Printf("%sString%s: \"%s\"\n", strings.Repeat(" ", level), fs, strings.TrimRight(string(n.Value), "\n"))
}
// KindString is a NodeKind of the String node.
var KindString = NewNodeKind("String")
// Kind implements Node.Kind.
func (n *String) Kind() NodeKind {
return KindString
}
// NewString returns a new String node.
func NewString(v []byte) *String {
return &String{
Value: v,
}
}
// A CodeSpan struct represents a code span of Markdown text.
type CodeSpan struct {
BaseInline
}
// Inline implements Inline.Inline .
func (n *CodeSpan) Inline() {
}
// IsBlank returns true if this node consists of spaces, otherwise false.
func (n *CodeSpan) IsBlank(source []byte) bool {
for c := n.FirstChild(); c != nil; c = c.NextSibling() {
text := c.(*Text).Segment
if !util.IsBlank(text.Value(source)) {
return false
}
}
return true
}
// Dump implements Node.Dump.
func (n *CodeSpan) Dump(source []byte, level int) {
DumpHelper(n, source, level, nil, nil)
}
// KindCodeSpan is a NodeKind of the CodeSpan node.
var KindCodeSpan = NewNodeKind("CodeSpan")
// Kind implements Node.Kind.
func (n *CodeSpan) Kind() NodeKind {
return KindCodeSpan
}
// NewCodeSpan returns a new CodeSpan node.
func NewCodeSpan() *CodeSpan {
return &CodeSpan{
BaseInline: BaseInline{},
}
}
// An Emphasis struct represents an emphasis of Markdown text.
type Emphasis struct {
BaseInline
// Level is a level of the emphasis.
Level int
}
// Dump implements Node.Dump.
func (n *Emphasis) Dump(source []byte, level int) {
m := map[string]string{
"Level": fmt.Sprintf("%v", n.Level),
}
DumpHelper(n, source, level, m, nil)
}
// KindEmphasis is a NodeKind of the Emphasis node.
var KindEmphasis = NewNodeKind("Emphasis")
// Kind implements Node.Kind.
func (n *Emphasis) Kind() NodeKind {
return KindEmphasis
}
// NewEmphasis returns a new Emphasis node with the given level.
func NewEmphasis(level int) *Emphasis {
return &Emphasis{
BaseInline: BaseInline{},
Level: level,
}
}
type baseLink struct {
BaseInline
// Destination is a destination(URL) of this link.
Destination []byte
// Title is a title of this link.
Title []byte
}
// Inline implements Inline.Inline.
func (n *baseLink) Inline() {
}
// A Link struct represents a link of the Markdown text.
type Link struct {
baseLink
}
// Dump implements Node.Dump.
func (n *Link) Dump(source []byte, level int) {
m := map[string]string{}
m["Destination"] = string(n.Destination)
m["Title"] = string(n.Title)
DumpHelper(n, source, level, m, nil)
}
// KindLink is a NodeKind of the Link node.
var KindLink = NewNodeKind("Link")
// Kind implements Node.Kind.
func (n *Link) Kind() NodeKind {
return KindLink
}
// NewLink returns a new Link node.
func NewLink() *Link {
c := &Link{
baseLink: baseLink{
BaseInline: BaseInline{},
},
}
return c
}
// An Image struct represents an image of the Markdown text.
type Image struct {
baseLink
}
// Dump implements Node.Dump.
func (n *Image) Dump(source []byte, level int) {
m := map[string]string{}
m["Destination"] = string(n.Destination)
m["Title"] = string(n.Title)
DumpHelper(n, source, level, m, nil)
}
// KindImage is a NodeKind of the Image node.
var KindImage = NewNodeKind("Image")
// Kind implements Node.Kind.
func (n *Image) Kind() NodeKind {
return KindImage
}
// NewImage returns a new Image node.
func NewImage(link *Link) *Image {
c := &Image{
baseLink: baseLink{
BaseInline: BaseInline{},
},
}
c.Destination = link.Destination
c.Title = link.Title
for n := link.FirstChild(); n != nil; {
next := n.NextSibling()
link.RemoveChild(link, n)
c.AppendChild(c, n)
n = next
}
return c
}
// AutoLinkType defines kind of auto links.
type AutoLinkType int
const (
// AutoLinkEmail indicates that an autolink is an email address.
AutoLinkEmail AutoLinkType = iota + 1
// AutoLinkURL indicates that an autolink is a generic URL.
AutoLinkURL
)
// An AutoLink struct represents an autolink of the Markdown text.
type AutoLink struct {
BaseInline
// Type is a type of this autolink.
AutoLinkType AutoLinkType
// Protocol specified a protocol of the link.
Protocol []byte
value *Text
}
// Inline implements Inline.Inline.
func (n *AutoLink) Inline() {}
// Dump implements Node.Dump.
func (n *AutoLink) Dump(source []byte, level int) {
segment := n.value.Segment
m := map[string]string{
"Value": string(segment.Value(source)),
}
DumpHelper(n, source, level, m, nil)
}
// KindAutoLink is a NodeKind of the AutoLink node.
var KindAutoLink = NewNodeKind("AutoLink")
// Kind implements Node.Kind.
func (n *AutoLink) Kind() NodeKind {
return KindAutoLink
}
// URL returns an url of this node.
func (n *AutoLink) URL(source []byte) []byte {
if n.Protocol != nil {
s := n.value.Segment
ret := make([]byte, 0, len(n.Protocol)+s.Len()+3)
ret = append(ret, n.Protocol...)
ret = append(ret, ':', '/', '/')
ret = append(ret, n.value.Text(source)...)
return ret
}
return n.value.Text(source)
}
// Label returns a label of this node.
func (n *AutoLink) Label(source []byte) []byte {
return n.value.Text(source)
}
// NewAutoLink returns a new AutoLink node.
func NewAutoLink(typ AutoLinkType, value *Text) *AutoLink {
return &AutoLink{
BaseInline: BaseInline{},
value: value,
AutoLinkType: typ,
}
}
// A RawHTML struct represents an inline raw HTML of the Markdown text.
type RawHTML struct {
BaseInline
Segments *textm.Segments
}
// Inline implements Inline.Inline.
func (n *RawHTML) Inline() {}
// Dump implements Node.Dump.
func (n *RawHTML) Dump(source []byte, level int) {
m := map[string]string{}
t := []string{}
for i := 0; i < n.Segments.Len(); i++ {
segment := n.Segments.At(i)
t = append(t, string(segment.Value(source)))
}
m["RawText"] = strings.Join(t, "")
DumpHelper(n, source, level, m, nil)
}
// KindRawHTML is a NodeKind of the RawHTML node.
var KindRawHTML = NewNodeKind("RawHTML")
// Kind implements Node.Kind.
func (n *RawHTML) Kind() NodeKind {
return KindRawHTML
}
// NewRawHTML returns a new RawHTML node.
func NewRawHTML() *RawHTML {
return &RawHTML{
Segments: textm.NewSegments(),
}
}

View file

@ -1,57 +0,0 @@
package goldmark_test
import (
"encoding/json"
"os"
"testing"
. "github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
type commonmarkSpecTestCase struct {
Markdown string `json:"markdown"`
HTML string `json:"html"`
Example int `json:"example"`
StartLine int `json:"start_line"`
EndLine int `json:"end_line"`
Section string `json:"section"`
}
func TestSpec(t *testing.T) {
bs, err := os.ReadFile("_test/spec.json")
if err != nil {
panic(err)
}
var testCases []commonmarkSpecTestCase
if err := json.Unmarshal(bs, &testCases); err != nil {
panic(err)
}
cases := []testutil.MarkdownTestCase{}
nos := testutil.ParseCliCaseArg()
for _, c := range testCases {
shouldAdd := len(nos) == 0
if !shouldAdd {
for _, no := range nos {
if c.Example == no {
shouldAdd = true
break
}
}
}
if shouldAdd {
cases = append(cases, testutil.MarkdownTestCase{
No: c.Example,
Markdown: c.Markdown,
Expected: c.HTML,
})
}
}
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
testutil.DoTestCases(markdown, cases, t)
}

View file

@ -1,156 +0,0 @@
1
//- - - - - - - - -//
Apple
: Pomaceous fruit of plants of the genus Malus in
the family Rosaceae.
Orange
: The fruit of an evergreen tree of the genus Citrus.
//- - - - - - - - -//
<dl>
<dt>Apple</dt>
<dd>Pomaceous fruit of plants of the genus Malus in
the family Rosaceae.</dd>
<dt>Orange</dt>
<dd>The fruit of an evergreen tree of the genus Citrus.</dd>
</dl>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
Apple
: Pomaceous fruit of plants of the genus Malus in
the family Rosaceae.
: An American computer company.
Orange
: The fruit of an evergreen tree of the genus Citrus.
//- - - - - - - - -//
<dl>
<dt>Apple</dt>
<dd>Pomaceous fruit of plants of the genus Malus in
the family Rosaceae.</dd>
<dd>An American computer company.</dd>
<dt>Orange</dt>
<dd>The fruit of an evergreen tree of the genus Citrus.</dd>
</dl>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
Term 1
Term 2
: Definition a
Term 3
: Definition b
//- - - - - - - - -//
<dl>
<dt>Term 1</dt>
<dt>Term 2</dt>
<dd>Definition a</dd>
<dt>Term 3</dt>
<dd>Definition b</dd>
</dl>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
Apple
: Pomaceous fruit of plants of the genus Malus in
the family Rosaceae.
Orange
: The fruit of an evergreen tree of the genus Citrus.
//- - - - - - - - -//
<dl>
<dt>Apple</dt>
<dd>
<p>Pomaceous fruit of plants of the genus Malus in
the family Rosaceae.</p>
</dd>
<dt>Orange</dt>
<dd>
<p>The fruit of an evergreen tree of the genus Citrus.</p>
</dd>
</dl>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5
//- - - - - - - - -//
Term 1
: This is a definition with two paragraphs. Lorem ipsum
dolor sit amet, consectetuer adipiscing elit. Aliquam
hendrerit mi posuere lectus.
Vestibulum enim wisi, viverra nec, fringilla in, laoreet
vitae, risus.
: Second definition for term 1, also wrapped in a paragraph
because of the blank line preceding it.
Term 2
: This definition has a code block, a blockquote and a list.
code block.
> block quote
> on two lines.
1. first list item
2. second list item
//- - - - - - - - -//
<dl>
<dt>Term 1</dt>
<dd>
<p>This is a definition with two paragraphs. Lorem ipsum
dolor sit amet, consectetuer adipiscing elit. Aliquam
hendrerit mi posuere lectus.</p>
<p>Vestibulum enim wisi, viverra nec, fringilla in, laoreet
vitae, risus.</p>
</dd>
<dd>
<p>Second definition for term 1, also wrapped in a paragraph
because of the blank line preceding it.</p>
</dd>
<dt>Term 2</dt>
<dd>
<p>This definition has a code block, a blockquote and a list.</p>
<pre><code>code block.
</code></pre>
<blockquote>
<p>block quote
on two lines.</p>
</blockquote>
<ol>
<li>first list item</li>
<li>second list item</li>
</ol>
</dd>
</dl>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6: Definition lists indented with tabs
//- - - - - - - - -//
0
: ```
0
//- - - - - - - - -//
<dl>
<dt>0</dt>
<dd><pre><code> 0</code></pre>
</dd>
</dl>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,91 +0,0 @@
1
//- - - - - - - - -//
That's some text with a footnote.[^1]
[^1]: And that's the footnote.
That's the second paragraph.
//- - - - - - - - -//
<p>That's some text with a footnote.<sup id="fnref:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup></p>
<div class="footnotes" role="doc-endnotes">
<hr>
<ol>
<li id="fn:1">
<p>And that's the footnote.</p>
<p>That's the second paragraph.&#160;<a href="#fnref:1" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a></p>
</li>
</ol>
</div>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
[^000]:0 [^]:
//- - - - - - - - -//
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
This[^3] is[^1] text with footnotes[^2].
[^1]: Footnote one
[^2]: Footnote two
[^3]: Footnote three
//- - - - - - - - -//
<p>This<sup id="fnref:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup> is<sup id="fnref:2"><a href="#fn:2" class="footnote-ref" role="doc-noteref">2</a></sup> text with footnotes<sup id="fnref:3"><a href="#fn:3" class="footnote-ref" role="doc-noteref">3</a></sup>.</p>
<div class="footnotes" role="doc-endnotes">
<hr>
<ol>
<li id="fn:1">
<p>Footnote three&#160;<a href="#fnref:1" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a></p>
</li>
<li id="fn:2">
<p>Footnote one&#160;<a href="#fnref:2" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a></p>
</li>
<li id="fn:3">
<p>Footnote two&#160;<a href="#fnref:3" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a></p>
</li>
</ol>
</div>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5
//- - - - - - - - -//
test![^1]
[^1]: footnote
//- - - - - - - - -//
<p>test!<sup id="fnref:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup></p>
<div class="footnotes" role="doc-endnotes">
<hr>
<ol>
<li id="fn:1">
<p>footnote&#160;<a href="#fnref:1" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a></p>
</li>
</ol>
</div>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6: Multiple references to the same footnotes should have different ids
//- - - - - - - - -//
something[^fn:1]
something[^fn:1]
something[^fn:1]
[^fn:1]: footnote text
//- - - - - - - - -//
<p>something<sup id="fnref:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup></p>
<p>something<sup id="fnref1:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup></p>
<p>something<sup id="fnref2:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup></p>
<div class="footnotes" role="doc-endnotes">
<hr>
<ol>
<li id="fn:1">
<p>footnote text&#160;<a href="#fnref:1" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a>&#160;<a href="#fnref1:1" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a>&#160;<a href="#fnref2:1" class="footnote-backref" role="doc-backlink">&#x21a9;&#xfe0e;</a></p>
</li>
</ol>
</div>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,193 +0,0 @@
1
//- - - - - - - - -//
www.commonmark.org
//- - - - - - - - -//
<p><a href="http://www.commonmark.org">www.commonmark.org</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
Visit www.commonmark.org/help for more information.
//- - - - - - - - -//
<p>Visit <a href="http://www.commonmark.org/help">www.commonmark.org/help</a> for more information.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
www.google.com/search?q=Markup+(business)
www.google.com/search?q=Markup+(business)))
(www.google.com/search?q=Markup+(business))
(www.google.com/search?q=Markup+(business)
//- - - - - - - - -//
<p><a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a></p>
<p><a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a>))</p>
<p>(<a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a>)</p>
<p>(<a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
www.google.com/search?q=(business))+ok
//- - - - - - - - -//
<p><a href="http://www.google.com/search?q=(business))+ok">www.google.com/search?q=(business))+ok</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5
//- - - - - - - - -//
www.google.com/search?q=commonmark&hl=en
www.google.com/search?q=commonmark&hl;
//- - - - - - - - -//
<p><a href="http://www.google.com/search?q=commonmark&amp;hl=en">www.google.com/search?q=commonmark&amp;hl=en</a></p>
<p><a href="http://www.google.com/search?q=commonmark">www.google.com/search?q=commonmark</a>&amp;hl;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6
//- - - - - - - - -//
www.commonmark.org/he<lp
//- - - - - - - - -//
<p><a href="http://www.commonmark.org/he">www.commonmark.org/he</a>&lt;lp</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
7
//- - - - - - - - -//
http://commonmark.org
(Visit https://encrypted.google.com/search?q=Markup+(business))
Anonymous FTP is available at ftp://foo.bar.baz.
//- - - - - - - - -//
<p><a href="http://commonmark.org">http://commonmark.org</a></p>
<p>(Visit <a href="https://encrypted.google.com/search?q=Markup+(business)">https://encrypted.google.com/search?q=Markup+(business)</a>)</p>
<p>Anonymous FTP is available at <a href="ftp://foo.bar.baz">ftp://foo.bar.baz</a>.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
8
//- - - - - - - - -//
foo@bar.baz
//- - - - - - - - -//
<p><a href="mailto:foo@bar.baz">foo@bar.baz</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
9
//- - - - - - - - -//
hello@mail+xyz.example isn't valid, but hello+xyz@mail.example is.
//- - - - - - - - -//
<p>hello@mail+xyz.example isn't valid, but <a href="mailto:hello+xyz@mail.example">hello+xyz@mail.example</a> is.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
10
//- - - - - - - - -//
a.b-c_d@a.b
a.b-c_d@a.b.
a.b-c_d@a.b-
a.b-c_d@a.b_
//- - - - - - - - -//
<p><a href="mailto:a.b-c_d@a.b">a.b-c_d@a.b</a></p>
<p><a href="mailto:a.b-c_d@a.b">a.b-c_d@a.b</a>.</p>
<p>a.b-c_d@a.b-</p>
<p>a.b-c_d@a.b_</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
11
//- - - - - - - - -//
https://github.com#sun,mon
//- - - - - - - - -//
<p><a href="https://github.com#sun,mon">https://github.com#sun,mon</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
12
//- - - - - - - - -//
https://github.com/sunday's
//- - - - - - - - -//
<p><a href="https://github.com/sunday's">https://github.com/sunday's</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
13
//- - - - - - - - -//
https://github.com?q=stars:>1
//- - - - - - - - -//
<p><a href="https://github.com?q=stars:%3E1">https://github.com?q=stars:&gt;1</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
14
//- - - - - - - - -//
[https://google.com](https://google.com)
//- - - - - - - - -//
<p><a href="https://google.com">https://google.com</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
15
//- - - - - - - - -//
This is a `git@github.com:vim/vim`
//- - - - - - - - -//
<p>This is a <code>git@github.com:vim/vim</code></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
16
//- - - - - - - - -//
https://nic.college
//- - - - - - - - -//
<p><a href="https://nic.college">https://nic.college</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
17
//- - - - - - - - -//
http://server.intranet.acme.com:1313
//- - - - - - - - -//
<p><a href="http://server.intranet.acme.com:1313">http://server.intranet.acme.com:1313</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
18
//- - - - - - - - -//
https://g.page/foo
//- - - - - - - - -//
<p><a href="https://g.page/foo">https://g.page/foo</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
19: Trailing punctuation (specifically, ?, !, ., ,, :, *, _, and ~) will not be considered part of the autolink
//- - - - - - - - -//
__http://test.com/~/a__
__http://test.com/~/__
__http://test.com/~__
__http://test.com/a/~__
//- - - - - - - - -//
<p><strong><a href="http://test.com/~/a">http://test.com/~/a</a></strong>
<strong><a href="http://test.com/~/">http://test.com/~/</a></strong>
<strong><a href="http://test.com/">http://test.com/</a>~</strong>
<strong><a href="http://test.com/a/">http://test.com/a/</a>~</strong></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,18 +0,0 @@
1
//- - - - - - - - -//
~~Hi~~ Hello, world!
//- - - - - - - - -//
<p><del>Hi</del> Hello, world!</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
This ~~has a
new paragraph~~.
//- - - - - - - - -//
<p>This ~~has a</p>
<p>new paragraph~~.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,282 +0,0 @@
1
//- - - - - - - - -//
| foo | bar |
| --- | --- |
| baz | bim |
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>foo</th>
<th>bar</th>
</tr>
</thead>
<tbody>
<tr>
<td>baz</td>
<td>bim</td>
</tr>
</tbody>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
| abc | defghi |
:-: | -----------:
bar | baz
//- - - - - - - - -//
<table>
<thead>
<tr>
<th align="center">abc</th>
<th align="right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center">bar</td>
<td align="right">baz</td>
</tr>
</tbody>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
| f\|oo |
| ------ |
| b `\|` az |
| b **\|** im |
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>f|oo</th>
</tr>
</thead>
<tbody>
<tr>
<td>b <code>|</code> az</td>
</tr>
<tr>
<td>b <strong>|</strong> im</td>
</tr>
</tbody>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
| abc | def |
| --- | --- |
| bar | baz |
> bar
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>abc</th>
<th>def</th>
</tr>
</thead>
<tbody>
<tr>
<td>bar</td>
<td>baz</td>
</tr>
</tbody>
</table>
<blockquote>
<p>bar</p>
</blockquote>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5
//- - - - - - - - -//
| abc | def |
| --- | --- |
| bar | baz |
bar
bar
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>abc</th>
<th>def</th>
</tr>
</thead>
<tbody>
<tr>
<td>bar</td>
<td>baz</td>
</tr>
<tr>
<td>bar</td>
<td></td>
</tr>
</tbody>
</table>
<p>bar</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6
//- - - - - - - - -//
| abc | def |
| --- |
| bar |
//- - - - - - - - -//
<p>| abc | def |
| --- |
| bar |</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
7
//- - - - - - - - -//
| abc | def |
| --- | --- |
| bar |
| bar | baz | boo |
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>abc</th>
<th>def</th>
</tr>
</thead>
<tbody>
<tr>
<td>bar</td>
<td></td>
</tr>
<tr>
<td>bar</td>
<td>baz</td>
</tr>
</tbody>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
8
//- - - - - - - - -//
| abc | def |
| --- | --- |
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>abc</th>
<th>def</th>
</tr>
</thead>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
9
//- - - - - - - - -//
Foo|Bar
---|---
`Yoyo`|Dyne
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>Foo</th>
<th>Bar</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Yoyo</code></td>
<td>Dyne</td>
</tr>
</tbody>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
10
//- - - - - - - - -//
foo|bar
---|---
`\` | second column
//- - - - - - - - -//
<table>
<thead>
<tr>
<th>foo</th>
<th>bar</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>\</code></td>
<td>second column</td>
</tr>
</tbody>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
11: Tables can interrupt paragraph
//- - - - - - - - -//
**xxx**
| hello | hi |
| :----: | :----:|
//- - - - - - - - -//
<p><strong>xxx</strong></p>
<table>
<thead>
<tr>
<th align="center">hello</th>
<th align="center">hi</th>
</tr>
</thead>
</table>
//= = = = = = = = = = = = = = = = = = = = = = = =//
12: A delimiter can not start with more than 3 spaces
//- - - - - - - - -//
Foo
---
//- - - - - - - - -//
<p>Foo
---</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
13: A delimiter can not start with more than 3 spaces(w/ tabs)
OPTIONS: {"enableEscape": true}
//- - - - - - - - -//
- aaa
Foo
\t\t---
//- - - - - - - - -//
<ul>
<li>
<p>aaa</p>
<p>Foo
---</p>
</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,51 +0,0 @@
1
//- - - - - - - - -//
- [ ] foo
- [x] bar
//- - - - - - - - -//
<ul>
<li><input disabled="" type="checkbox"> foo</li>
<li><input checked="" disabled="" type="checkbox"> bar</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
- [x] foo
- [ ] bar
- [x] baz
- [ ] bim
//- - - - - - - - -//
<ul>
<li><input checked="" disabled="" type="checkbox"> foo
<ul>
<li><input disabled="" type="checkbox"> bar</li>
<li><input checked="" disabled="" type="checkbox"> baz</li>
</ul>
</li>
<li><input disabled="" type="checkbox"> bim</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
- test[x]=[x]
//- - - - - - - - -//
<ul>
<li>test[x]=[x]</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
+ [x] [x]
//- - - - - - - - -//
<ul>
<li><input checked="" disabled="" type="checkbox"> [x]</li>
</ul>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,143 +0,0 @@
1
//- - - - - - - - -//
This should 'be' replaced
//- - - - - - - - -//
<p>This should &lsquo;be&rsquo; replaced</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
2
//- - - - - - - - -//
This should "be" replaced
//- - - - - - - - -//
<p>This should &ldquo;be&rdquo; replaced</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
3
//- - - - - - - - -//
**--** *---* a...<< b>>
//- - - - - - - - -//
<p><strong>&ndash;</strong> <em>&mdash;</em> a&hellip;&laquo; b&raquo;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
4
//- - - - - - - - -//
Some say '90s, others say 90's, but I can't say which is best.
//- - - - - - - - -//
<p>Some say &rsquo;90s, others say 90&rsquo;s, but I can&rsquo;t say which is best.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
5: contractions
//- - - - - - - - -//
Alice's, I'm ,Don't, You'd
I've, I'll, You're
[Cat][]'s Pajamas
Yahoo!'s
[Cat]: http://example.com
//- - - - - - - - -//
<p>Alice&rsquo;s, I&rsquo;m ,Don&rsquo;t, You&rsquo;d</p>
<p>I&rsquo;ve, I&rsquo;ll, You&rsquo;re</p>
<p><a href="http://example.com">Cat</a>&rsquo;s Pajamas</p>
<p>Yahoo!&rsquo;s</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
6: "" after digits are an inch
//- - - - - - - - -//
My height is 5'6"".
//- - - - - - - - -//
<p>My height is 5'6&quot;&quot;.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
7: quote followed by ,.?! and spaces maybe a closer
//- - - - - - - - -//
reported "issue 1 (IE-only)", "issue 2", 'issue3 (FF-only)', 'issue4'
//- - - - - - - - -//
<p>reported &ldquo;issue 1 (IE-only)&rdquo;, &ldquo;issue 2&rdquo;, &lsquo;issue3 (FF-only)&rsquo;, &lsquo;issue4&rsquo;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
8: handle inches in qoutes
//- - - - - - - - -//
"Monitor 21"" and "Monitor""
//- - - - - - - - -//
<p>&ldquo;Monitor 21&quot;&rdquo; and &ldquo;Monitor&rdquo;&quot;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
9: Closing quotation marks within italics
//- - - - - - - - -//
*"At first, things were not clear."*
//- - - - - - - - -//
<p><em>&ldquo;At first, things were not clear.&rdquo;</em></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
10: Closing quotation marks within boldfacing
//- - - - - - - - -//
**"At first, things were not clear."**
//- - - - - - - - -//
<p><strong>&ldquo;At first, things were not clear.&rdquo;</strong></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
11: Closing quotation marks within boldfacing and italics
//- - - - - - - - -//
***"At first, things were not clear."***
//- - - - - - - - -//
<p><em><strong>&ldquo;At first, things were not clear.&rdquo;</strong></em></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
12: Closing quotation marks within boldfacing and italics
//- - - - - - - - -//
***"At first, things were not clear."***
//- - - - - - - - -//
<p><em><strong>&ldquo;At first, things were not clear.&rdquo;</strong></em></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
13: Plural possessives
//- - - - - - - - -//
John's dog is named Sam. The Smiths' dog is named Rover.
//- - - - - - - - -//
<p>John&rsquo;s dog is named Sam. The Smiths&rsquo; dog is named Rover.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
14: Links within quotation marks and parenthetical phrases
//- - - - - - - - -//
This is not difficult (see "[Introduction to Hugo Templating](https://gohugo.io/templates/introduction/)").
//- - - - - - - - -//
<p>This is not difficult (see &ldquo;<a href="https://gohugo.io/templates/introduction/">Introduction to Hugo Templating</a>&rdquo;).</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
15: Quotation marks within links
//- - - - - - - - -//
Apple's early Cairo font gave us ["moof" and the "dogcow."](https://www.macworld.com/article/2926184/we-miss-you-clarus-the-dogcow.html)
//- - - - - - - - -//
<p>Apple&rsquo;s early Cairo font gave us <a href="https://www.macworld.com/article/2926184/we-miss-you-clarus-the-dogcow.html">&ldquo;moof&rdquo; and the &ldquo;dogcow.&rdquo;</a></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
16: Single closing quotation marks with slang/informalities
//- - - - - - - - -//
"I'm not doin' that," Bill said with emphasis.
//- - - - - - - - -//
<p>&ldquo;I&rsquo;m not doin&rsquo; that,&rdquo; Bill said with emphasis.</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
17: Closing single quotation marks in quotations-within-quotations
//- - - - - - - - -//
Janet said, "When everything is 'breaking news,' nothing is 'breaking news.'"
//- - - - - - - - -//
<p>Janet said, &ldquo;When everything is &lsquo;breaking news,&rsquo; nothing is &lsquo;breaking news.&rsquo;&rdquo;</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
18: Opening single quotation marks for abbreviations
//- - - - - - - - -//
We're talking about the internet --- 'net for short. Let's rock 'n roll!
//- - - - - - - - -//
<p>We&rsquo;re talking about the internet &mdash; &rsquo;net for short. Let&rsquo;s rock &rsquo;n roll!</p>
//= = = = = = = = = = = = = = = = = = = = = = = =//
19: Quotes in alt text
//- - - - - - - - -//
![Nice & day, **isn't** it?](https://example.com/image.jpg)
//- - - - - - - - -//
<p><img src="https://example.com/image.jpg" alt="Nice &amp; day, isn&rsquo;t it?"></p>
//= = = = = = = = = = = = = = = = = = = = = = = =//

View file

@ -1,83 +0,0 @@
package ast
import (
gast "github.com/yuin/goldmark/ast"
)
// A DefinitionList struct represents a definition list of Markdown
// (PHPMarkdownExtra) text.
type DefinitionList struct {
gast.BaseBlock
Offset int
TemporaryParagraph *gast.Paragraph
}
// Dump implements Node.Dump.
func (n *DefinitionList) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// KindDefinitionList is a NodeKind of the DefinitionList node.
var KindDefinitionList = gast.NewNodeKind("DefinitionList")
// Kind implements Node.Kind.
func (n *DefinitionList) Kind() gast.NodeKind {
return KindDefinitionList
}
// NewDefinitionList returns a new DefinitionList node.
func NewDefinitionList(offset int, para *gast.Paragraph) *DefinitionList {
return &DefinitionList{
Offset: offset,
TemporaryParagraph: para,
}
}
// A DefinitionTerm struct represents a definition list term of Markdown
// (PHPMarkdownExtra) text.
type DefinitionTerm struct {
gast.BaseBlock
}
// Dump implements Node.Dump.
func (n *DefinitionTerm) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// KindDefinitionTerm is a NodeKind of the DefinitionTerm node.
var KindDefinitionTerm = gast.NewNodeKind("DefinitionTerm")
// Kind implements Node.Kind.
func (n *DefinitionTerm) Kind() gast.NodeKind {
return KindDefinitionTerm
}
// NewDefinitionTerm returns a new DefinitionTerm node.
func NewDefinitionTerm() *DefinitionTerm {
return &DefinitionTerm{}
}
// A DefinitionDescription struct represents a definition list description of Markdown
// (PHPMarkdownExtra) text.
type DefinitionDescription struct {
gast.BaseBlock
IsTight bool
}
// Dump implements Node.Dump.
func (n *DefinitionDescription) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// KindDefinitionDescription is a NodeKind of the DefinitionDescription node.
var KindDefinitionDescription = gast.NewNodeKind("DefinitionDescription")
// Kind implements Node.Kind.
func (n *DefinitionDescription) Kind() gast.NodeKind {
return KindDefinitionDescription
}
// NewDefinitionDescription returns a new DefinitionDescription node.
func NewDefinitionDescription() *DefinitionDescription {
return &DefinitionDescription{}
}

View file

@ -1,138 +0,0 @@
package ast
import (
"fmt"
gast "github.com/yuin/goldmark/ast"
)
// A FootnoteLink struct represents a link to a footnote of Markdown
// (PHP Markdown Extra) text.
type FootnoteLink struct {
gast.BaseInline
Index int
RefCount int
RefIndex int
}
// Dump implements Node.Dump.
func (n *FootnoteLink) Dump(source []byte, level int) {
m := map[string]string{}
m["Index"] = fmt.Sprintf("%v", n.Index)
m["RefCount"] = fmt.Sprintf("%v", n.RefCount)
m["RefIndex"] = fmt.Sprintf("%v", n.RefIndex)
gast.DumpHelper(n, source, level, m, nil)
}
// KindFootnoteLink is a NodeKind of the FootnoteLink node.
var KindFootnoteLink = gast.NewNodeKind("FootnoteLink")
// Kind implements Node.Kind.
func (n *FootnoteLink) Kind() gast.NodeKind {
return KindFootnoteLink
}
// NewFootnoteLink returns a new FootnoteLink node.
func NewFootnoteLink(index int) *FootnoteLink {
return &FootnoteLink{
Index: index,
RefCount: 0,
RefIndex: 0,
}
}
// A FootnoteBacklink struct represents a link to a footnote of Markdown
// (PHP Markdown Extra) text.
type FootnoteBacklink struct {
gast.BaseInline
Index int
RefCount int
RefIndex int
}
// Dump implements Node.Dump.
func (n *FootnoteBacklink) Dump(source []byte, level int) {
m := map[string]string{}
m["Index"] = fmt.Sprintf("%v", n.Index)
m["RefCount"] = fmt.Sprintf("%v", n.RefCount)
m["RefIndex"] = fmt.Sprintf("%v", n.RefIndex)
gast.DumpHelper(n, source, level, m, nil)
}
// KindFootnoteBacklink is a NodeKind of the FootnoteBacklink node.
var KindFootnoteBacklink = gast.NewNodeKind("FootnoteBacklink")
// Kind implements Node.Kind.
func (n *FootnoteBacklink) Kind() gast.NodeKind {
return KindFootnoteBacklink
}
// NewFootnoteBacklink returns a new FootnoteBacklink node.
func NewFootnoteBacklink(index int) *FootnoteBacklink {
return &FootnoteBacklink{
Index: index,
RefCount: 0,
RefIndex: 0,
}
}
// A Footnote struct represents a footnote of Markdown
// (PHP Markdown Extra) text.
type Footnote struct {
gast.BaseBlock
Ref []byte
Index int
}
// Dump implements Node.Dump.
func (n *Footnote) Dump(source []byte, level int) {
m := map[string]string{}
m["Index"] = fmt.Sprintf("%v", n.Index)
m["Ref"] = string(n.Ref)
gast.DumpHelper(n, source, level, m, nil)
}
// KindFootnote is a NodeKind of the Footnote node.
var KindFootnote = gast.NewNodeKind("Footnote")
// Kind implements Node.Kind.
func (n *Footnote) Kind() gast.NodeKind {
return KindFootnote
}
// NewFootnote returns a new Footnote node.
func NewFootnote(ref []byte) *Footnote {
return &Footnote{
Ref: ref,
Index: -1,
}
}
// A FootnoteList struct represents footnotes of Markdown
// (PHP Markdown Extra) text.
type FootnoteList struct {
gast.BaseBlock
Count int
}
// Dump implements Node.Dump.
func (n *FootnoteList) Dump(source []byte, level int) {
m := map[string]string{}
m["Count"] = fmt.Sprintf("%v", n.Count)
gast.DumpHelper(n, source, level, m, nil)
}
// KindFootnoteList is a NodeKind of the FootnoteList node.
var KindFootnoteList = gast.NewNodeKind("FootnoteList")
// Kind implements Node.Kind.
func (n *FootnoteList) Kind() gast.NodeKind {
return KindFootnoteList
}
// NewFootnoteList returns a new FootnoteList node.
func NewFootnoteList() *FootnoteList {
return &FootnoteList{
Count: 0,
}
}

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@ -1,29 +0,0 @@
// Package ast defines AST nodes that represents extension's elements
package ast
import (
gast "github.com/yuin/goldmark/ast"
)
// A Strikethrough struct represents a strikethrough of GFM text.
type Strikethrough struct {
gast.BaseInline
}
// Dump implements Node.Dump.
func (n *Strikethrough) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// KindStrikethrough is a NodeKind of the Strikethrough node.
var KindStrikethrough = gast.NewNodeKind("Strikethrough")
// Kind implements Node.Kind.
func (n *Strikethrough) Kind() gast.NodeKind {
return KindStrikethrough
}
// NewStrikethrough returns a new Strikethrough node.
func NewStrikethrough() *Strikethrough {
return &Strikethrough{}
}

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@ -1,158 +0,0 @@
package ast
import (
"fmt"
"strings"
gast "github.com/yuin/goldmark/ast"
)
// Alignment is a text alignment of table cells.
type Alignment int
const (
// AlignLeft indicates text should be left justified.
AlignLeft Alignment = iota + 1
// AlignRight indicates text should be right justified.
AlignRight
// AlignCenter indicates text should be centered.
AlignCenter
// AlignNone indicates text should be aligned by default manner.
AlignNone
)
func (a Alignment) String() string {
switch a {
case AlignLeft:
return "left"
case AlignRight:
return "right"
case AlignCenter:
return "center"
case AlignNone:
return "none"
}
return ""
}
// A Table struct represents a table of Markdown(GFM) text.
type Table struct {
gast.BaseBlock
// Alignments returns alignments of the columns.
Alignments []Alignment
}
// Dump implements Node.Dump.
func (n *Table) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, func(level int) {
indent := strings.Repeat(" ", level)
fmt.Printf("%sAlignments {\n", indent)
for i, alignment := range n.Alignments {
indent2 := strings.Repeat(" ", level+1)
fmt.Printf("%s%s", indent2, alignment.String())
if i != len(n.Alignments)-1 {
fmt.Println("")
}
}
fmt.Printf("\n%s}\n", indent)
})
}
// KindTable is a NodeKind of the Table node.
var KindTable = gast.NewNodeKind("Table")
// Kind implements Node.Kind.
func (n *Table) Kind() gast.NodeKind {
return KindTable
}
// NewTable returns a new Table node.
func NewTable() *Table {
return &Table{
Alignments: []Alignment{},
}
}
// A TableRow struct represents a table row of Markdown(GFM) text.
type TableRow struct {
gast.BaseBlock
Alignments []Alignment
}
// Dump implements Node.Dump.
func (n *TableRow) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// KindTableRow is a NodeKind of the TableRow node.
var KindTableRow = gast.NewNodeKind("TableRow")
// Kind implements Node.Kind.
func (n *TableRow) Kind() gast.NodeKind {
return KindTableRow
}
// NewTableRow returns a new TableRow node.
func NewTableRow(alignments []Alignment) *TableRow {
return &TableRow{Alignments: alignments}
}
// A TableHeader struct represents a table header of Markdown(GFM) text.
type TableHeader struct {
gast.BaseBlock
Alignments []Alignment
}
// KindTableHeader is a NodeKind of the TableHeader node.
var KindTableHeader = gast.NewNodeKind("TableHeader")
// Kind implements Node.Kind.
func (n *TableHeader) Kind() gast.NodeKind {
return KindTableHeader
}
// Dump implements Node.Dump.
func (n *TableHeader) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// NewTableHeader returns a new TableHeader node.
func NewTableHeader(row *TableRow) *TableHeader {
n := &TableHeader{}
for c := row.FirstChild(); c != nil; {
next := c.NextSibling()
n.AppendChild(n, c)
c = next
}
return n
}
// A TableCell struct represents a table cell of a Markdown(GFM) text.
type TableCell struct {
gast.BaseBlock
Alignment Alignment
}
// Dump implements Node.Dump.
func (n *TableCell) Dump(source []byte, level int) {
gast.DumpHelper(n, source, level, nil, nil)
}
// KindTableCell is a NodeKind of the TableCell node.
var KindTableCell = gast.NewNodeKind("TableCell")
// Kind implements Node.Kind.
func (n *TableCell) Kind() gast.NodeKind {
return KindTableCell
}
// NewTableCell returns a new TableCell node.
func NewTableCell() *TableCell {
return &TableCell{
Alignment: AlignNone,
}
}

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@ -1,35 +0,0 @@
package ast
import (
"fmt"
gast "github.com/yuin/goldmark/ast"
)
// A TaskCheckBox struct represents a checkbox of a task list.
type TaskCheckBox struct {
gast.BaseInline
IsChecked bool
}
// Dump implements Node.Dump.
func (n *TaskCheckBox) Dump(source []byte, level int) {
m := map[string]string{
"Checked": fmt.Sprintf("%v", n.IsChecked),
}
gast.DumpHelper(n, source, level, m, nil)
}
// KindTaskCheckBox is a NodeKind of the TaskCheckBox node.
var KindTaskCheckBox = gast.NewNodeKind("TaskCheckBox")
// Kind implements Node.Kind.
func (n *TaskCheckBox) Kind() gast.NodeKind {
return KindTaskCheckBox
}
// NewTaskCheckBox returns a new TaskCheckBox node.
func NewTaskCheckBox(checked bool) *TaskCheckBox {
return &TaskCheckBox{
IsChecked: checked,
}
}

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@ -1,72 +0,0 @@
package extension
import (
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
)
// A CJKOption sets options for CJK support mostly for HTML based renderers.
type CJKOption func(*cjk)
// A EastAsianLineBreaks is a style of east asian line breaks.
type EastAsianLineBreaks int
const (
//EastAsianLineBreaksNone renders line breaks as it is.
EastAsianLineBreaksNone EastAsianLineBreaks = iota
// EastAsianLineBreaksSimple is a style where soft line breaks are ignored
// if both sides of the break are east asian wide characters.
EastAsianLineBreaksSimple
// EastAsianLineBreaksCSS3Draft is a style where soft line breaks are ignored
// even if only one side of the break is an east asian wide character.
EastAsianLineBreaksCSS3Draft
)
// WithEastAsianLineBreaks is a functional option that indicates whether softline breaks
// between east asian wide characters should be ignored.
// style defauts to [EastAsianLineBreaksSimple] .
func WithEastAsianLineBreaks(style ...EastAsianLineBreaks) CJKOption {
return func(c *cjk) {
if len(style) == 0 {
c.EastAsianLineBreaks = EastAsianLineBreaksSimple
return
}
c.EastAsianLineBreaks = style[0]
}
}
// WithEscapedSpace is a functional option that indicates that a '\' escaped half-space(0x20) should not be rendered.
func WithEscapedSpace() CJKOption {
return func(c *cjk) {
c.EscapedSpace = true
}
}
type cjk struct {
EastAsianLineBreaks EastAsianLineBreaks
EscapedSpace bool
}
// CJK is a goldmark extension that provides functionalities for CJK languages.
var CJK = NewCJK(WithEastAsianLineBreaks(), WithEscapedSpace())
// NewCJK returns a new extension with given options.
func NewCJK(opts ...CJKOption) goldmark.Extender {
e := &cjk{
EastAsianLineBreaks: EastAsianLineBreaksNone,
}
for _, opt := range opts {
opt(e)
}
return e
}
func (e *cjk) Extend(m goldmark.Markdown) {
m.Renderer().AddOptions(html.WithEastAsianLineBreaks(
html.EastAsianLineBreaks(e.EastAsianLineBreaks)))
if e.EscapedSpace {
m.Renderer().AddOptions(html.WithWriter(html.NewWriter(html.WithEscapedSpace())))
m.Parser().AddOptions(parser.WithEscapedSpace())
}
}

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@ -1,269 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
func TestEscapedSpace(t *testing.T) {
markdown := goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
no := 1
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Without spaces around an emphasis started with east asian punctuations, it is not interpreted as an emphasis(as defined in CommonMark spec)",
Markdown: "太郎は**「こんにちわ」**と言った\nんです",
Expected: "<p>太郎は**「こんにちわ」**と言った\nんです</p>",
},
t,
)
no = 2
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "With spaces around an emphasis started with east asian punctuations, it is interpreted as an emphasis(but remains unnecessary spaces)",
Markdown: "太郎は **「こんにちわ」** と言った\nんです",
Expected: "<p>太郎は <strong>「こんにちわ」</strong> と言った\nんです</p>",
},
t,
)
// Enables EscapedSpace
markdown = goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(NewCJK(WithEscapedSpace())),
)
no = 3
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "With spaces around an emphasis started with east asian punctuations,it is interpreted as an emphasis",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nんです",
Expected: "<p>太郎は<strong>「こんにちわ」</strong>と言った\nんです</p>",
},
t,
)
// ' ' triggers Linkify extension inline parser.
// Escaped spaces should not trigger the inline parser.
markdown = goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewCJK(WithEscapedSpace()),
Linkify,
),
)
no = 4
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Escaped space and linkfy extension",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nんです",
Expected: "<p>太郎は<strong>「こんにちわ」</strong>と言った\nんです</p>",
},
t,
)
}
func TestEastAsianLineBreaks(t *testing.T) {
markdown := goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
no := 1
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks are rendered as a newline, so some asian users will see it as an unnecessary space",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言った\nんです</p>",
},
t,
)
// Enables EastAsianLineBreaks
markdown = goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(NewCJK(WithEastAsianLineBreaks())),
)
no = 2
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between east asian wide characters are ignored",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言ったんです</p>",
},
t,
)
no = 3
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between western characters are rendered as a newline",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言ったa\nbんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言ったa\nbんです</p>",
},
t,
)
no = 4
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between a western character and an east asian wide character are rendered as a newline",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言ったa\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言ったa\nんです</p>",
},
t,
)
no = 5
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between an east asian wide character and a western character are rendered as a newline",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nbんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言った\nbんです</p>",
},
t,
)
// WithHardWraps take precedence over WithEastAsianLineBreaks
markdown = goldmark.New(goldmark.WithRendererOptions(
html.WithHardWraps(),
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(NewCJK(WithEastAsianLineBreaks())),
)
no = 6
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "WithHardWraps take precedence over WithEastAsianLineBreaks",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言った<br />\nんです</p>",
},
t,
)
// Tests with EastAsianLineBreaksStyleSimple
markdown = goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewCJK(WithEastAsianLineBreaks()),
Linkify,
),
)
no = 7
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "WithEastAsianLineBreaks and linkfy extension",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\r\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言ったんです</p>",
},
t,
)
no = 8
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between east asian wide characters or punctuations are ignored",
Markdown: "太郎は\\ **「こんにちわ」**\\ と、\r\n言った\r\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と、言ったんです</p>",
},
t,
)
no = 9
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between an east asian wide character and a western character are ignored",
Markdown: "私はプログラマーです。\n東京の会社に勤めています。\nGoでWebアプリケーションを開発しています。",
Expected: "<p>私はプログラマーです。東京の会社に勤めています。\nGoでWebアプリケーションを開発しています。</p>",
},
t,
)
// Tests with EastAsianLineBreaksCSS3Draft
markdown = goldmark.New(goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewCJK(WithEastAsianLineBreaks(EastAsianLineBreaksCSS3Draft)),
),
)
no = 10
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between a western character and an east asian wide character are ignored",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言ったa\nんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言ったaんです</p>",
},
t,
)
no = 11
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between an east asian wide character and a western character are ignored",
Markdown: "太郎は\\ **「こんにちわ」**\\ と言った\nbんです",
Expected: "<p>太郎は\\ <strong>「こんにちわ」</strong>\\ と言ったbんです</p>",
},
t,
)
no = 12
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: no,
Description: "Soft line breaks between an east asian wide character and a western character are ignored",
Markdown: "私はプログラマーです。\n東京の会社に勤めています。\nGoでWebアプリケーションを開発しています。",
Expected: "<p>私はプログラマーです。東京の会社に勤めています。GoでWebアプリケーションを開発しています。</p>",
},
t,
)
}

View file

@ -1,274 +0,0 @@
package extension
import (
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/extension/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type definitionListParser struct {
}
var defaultDefinitionListParser = &definitionListParser{}
// NewDefinitionListParser return a new parser.BlockParser that
// can parse PHP Markdown Extra Definition lists.
func NewDefinitionListParser() parser.BlockParser {
return defaultDefinitionListParser
}
func (b *definitionListParser) Trigger() []byte {
return []byte{':'}
}
func (b *definitionListParser) Open(parent gast.Node, reader text.Reader, pc parser.Context) (gast.Node, parser.State) {
if _, ok := parent.(*ast.DefinitionList); ok {
return nil, parser.NoChildren
}
line, _ := reader.PeekLine()
pos := pc.BlockOffset()
indent := pc.BlockIndent()
if pos < 0 || line[pos] != ':' || indent != 0 {
return nil, parser.NoChildren
}
last := parent.LastChild()
// need 1 or more spaces after ':'
w, _ := util.IndentWidth(line[pos+1:], pos+1)
if w < 1 {
return nil, parser.NoChildren
}
if w >= 8 { // starts with indented code
w = 5
}
w += pos + 1 /* 1 = ':' */
para, lastIsParagraph := last.(*gast.Paragraph)
var list *ast.DefinitionList
status := parser.HasChildren
var ok bool
if lastIsParagraph {
list, ok = last.PreviousSibling().(*ast.DefinitionList)
if ok { // is not first item
list.Offset = w
list.TemporaryParagraph = para
} else { // is first item
list = ast.NewDefinitionList(w, para)
status |= parser.RequireParagraph
}
} else if list, ok = last.(*ast.DefinitionList); ok { // multiple description
list.Offset = w
list.TemporaryParagraph = nil
} else {
return nil, parser.NoChildren
}
return list, status
}
func (b *definitionListParser) Continue(node gast.Node, reader text.Reader, pc parser.Context) parser.State {
line, _ := reader.PeekLine()
if util.IsBlank(line) {
return parser.Continue | parser.HasChildren
}
list, _ := node.(*ast.DefinitionList)
w, _ := util.IndentWidth(line, reader.LineOffset())
if w < list.Offset {
return parser.Close
}
pos, padding := util.IndentPosition(line, reader.LineOffset(), list.Offset)
reader.AdvanceAndSetPadding(pos, padding)
return parser.Continue | parser.HasChildren
}
func (b *definitionListParser) Close(node gast.Node, reader text.Reader, pc parser.Context) {
// nothing to do
}
func (b *definitionListParser) CanInterruptParagraph() bool {
return true
}
func (b *definitionListParser) CanAcceptIndentedLine() bool {
return false
}
type definitionDescriptionParser struct {
}
var defaultDefinitionDescriptionParser = &definitionDescriptionParser{}
// NewDefinitionDescriptionParser return a new parser.BlockParser that
// can parse definition description starts with ':'.
func NewDefinitionDescriptionParser() parser.BlockParser {
return defaultDefinitionDescriptionParser
}
func (b *definitionDescriptionParser) Trigger() []byte {
return []byte{':'}
}
func (b *definitionDescriptionParser) Open(
parent gast.Node, reader text.Reader, pc parser.Context) (gast.Node, parser.State) {
line, _ := reader.PeekLine()
pos := pc.BlockOffset()
indent := pc.BlockIndent()
if pos < 0 || line[pos] != ':' || indent != 0 {
return nil, parser.NoChildren
}
list, _ := parent.(*ast.DefinitionList)
if list == nil {
return nil, parser.NoChildren
}
para := list.TemporaryParagraph
list.TemporaryParagraph = nil
if para != nil {
lines := para.Lines()
l := lines.Len()
for i := 0; i < l; i++ {
term := ast.NewDefinitionTerm()
segment := lines.At(i)
term.Lines().Append(segment.TrimRightSpace(reader.Source()))
list.AppendChild(list, term)
}
para.Parent().RemoveChild(para.Parent(), para)
}
cpos, padding := util.IndentPosition(line[pos+1:], pos+1, list.Offset-pos-1)
reader.AdvanceAndSetPadding(cpos+1, padding)
return ast.NewDefinitionDescription(), parser.HasChildren
}
func (b *definitionDescriptionParser) Continue(node gast.Node, reader text.Reader, pc parser.Context) parser.State {
// definitionListParser detects end of the description.
// so this method will never be called.
return parser.Continue | parser.HasChildren
}
func (b *definitionDescriptionParser) Close(node gast.Node, reader text.Reader, pc parser.Context) {
desc := node.(*ast.DefinitionDescription)
desc.IsTight = !desc.HasBlankPreviousLines()
if desc.IsTight {
for gc := desc.FirstChild(); gc != nil; gc = gc.NextSibling() {
paragraph, ok := gc.(*gast.Paragraph)
if ok {
textBlock := gast.NewTextBlock()
textBlock.SetLines(paragraph.Lines())
desc.ReplaceChild(desc, paragraph, textBlock)
}
}
}
}
func (b *definitionDescriptionParser) CanInterruptParagraph() bool {
return true
}
func (b *definitionDescriptionParser) CanAcceptIndentedLine() bool {
return false
}
// DefinitionListHTMLRenderer is a renderer.NodeRenderer implementation that
// renders DefinitionList nodes.
type DefinitionListHTMLRenderer struct {
html.Config
}
// NewDefinitionListHTMLRenderer returns a new DefinitionListHTMLRenderer.
func NewDefinitionListHTMLRenderer(opts ...html.Option) renderer.NodeRenderer {
r := &DefinitionListHTMLRenderer{
Config: html.NewConfig(),
}
for _, opt := range opts {
opt.SetHTMLOption(&r.Config)
}
return r
}
// RegisterFuncs implements renderer.NodeRenderer.RegisterFuncs.
func (r *DefinitionListHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(ast.KindDefinitionList, r.renderDefinitionList)
reg.Register(ast.KindDefinitionTerm, r.renderDefinitionTerm)
reg.Register(ast.KindDefinitionDescription, r.renderDefinitionDescription)
}
// DefinitionListAttributeFilter defines attribute names which dl elements can have.
var DefinitionListAttributeFilter = html.GlobalAttributeFilter
func (r *DefinitionListHTMLRenderer) renderDefinitionList(
w util.BufWriter, source []byte, n gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
if n.Attributes() != nil {
_, _ = w.WriteString("<dl")
html.RenderAttributes(w, n, DefinitionListAttributeFilter)
_, _ = w.WriteString(">\n")
} else {
_, _ = w.WriteString("<dl>\n")
}
} else {
_, _ = w.WriteString("</dl>\n")
}
return gast.WalkContinue, nil
}
// DefinitionTermAttributeFilter defines attribute names which dd elements can have.
var DefinitionTermAttributeFilter = html.GlobalAttributeFilter
func (r *DefinitionListHTMLRenderer) renderDefinitionTerm(
w util.BufWriter, source []byte, n gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
if n.Attributes() != nil {
_, _ = w.WriteString("<dt")
html.RenderAttributes(w, n, DefinitionTermAttributeFilter)
_ = w.WriteByte('>')
} else {
_, _ = w.WriteString("<dt>")
}
} else {
_, _ = w.WriteString("</dt>\n")
}
return gast.WalkContinue, nil
}
// DefinitionDescriptionAttributeFilter defines attribute names which dd elements can have.
var DefinitionDescriptionAttributeFilter = html.GlobalAttributeFilter
func (r *DefinitionListHTMLRenderer) renderDefinitionDescription(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
n := node.(*ast.DefinitionDescription)
_, _ = w.WriteString("<dd")
if n.Attributes() != nil {
html.RenderAttributes(w, n, DefinitionDescriptionAttributeFilter)
}
if n.IsTight {
_, _ = w.WriteString(">")
} else {
_, _ = w.WriteString(">\n")
}
} else {
_, _ = w.WriteString("</dd>\n")
}
return gast.WalkContinue, nil
}
type definitionList struct {
}
// DefinitionList is an extension that allow you to use PHP Markdown Extra Definition lists.
var DefinitionList = &definitionList{}
func (e *definitionList) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(parser.WithBlockParsers(
util.Prioritized(NewDefinitionListParser(), 101),
util.Prioritized(NewDefinitionDescriptionParser(), 102),
))
m.Renderer().AddOptions(renderer.WithNodeRenderers(
util.Prioritized(NewDefinitionListHTMLRenderer(), 500),
))
}

View file

@ -1,21 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
func TestDefinitionList(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
DefinitionList,
),
)
testutil.DoTestCaseFile(markdown, "_test/definition_list.txt", t, testutil.ParseCliCaseArg()...)
}

View file

@ -1,691 +0,0 @@
package extension
import (
"bytes"
"fmt"
"strconv"
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/extension/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var footnoteListKey = parser.NewContextKey()
var footnoteLinkListKey = parser.NewContextKey()
type footnoteBlockParser struct {
}
var defaultFootnoteBlockParser = &footnoteBlockParser{}
// NewFootnoteBlockParser returns a new parser.BlockParser that can parse
// footnotes of the Markdown(PHP Markdown Extra) text.
func NewFootnoteBlockParser() parser.BlockParser {
return defaultFootnoteBlockParser
}
func (b *footnoteBlockParser) Trigger() []byte {
return []byte{'['}
}
func (b *footnoteBlockParser) Open(parent gast.Node, reader text.Reader, pc parser.Context) (gast.Node, parser.State) {
line, segment := reader.PeekLine()
pos := pc.BlockOffset()
if pos < 0 || line[pos] != '[' {
return nil, parser.NoChildren
}
pos++
if pos > len(line)-1 || line[pos] != '^' {
return nil, parser.NoChildren
}
open := pos + 1
var closes int
closure := util.FindClosure(line[pos+1:], '[', ']', false, false) //nolint:staticcheck
closes = pos + 1 + closure
next := closes + 1
if closure > -1 {
if next >= len(line) || line[next] != ':' {
return nil, parser.NoChildren
}
} else {
return nil, parser.NoChildren
}
padding := segment.Padding
label := reader.Value(text.NewSegment(segment.Start+open-padding, segment.Start+closes-padding))
if util.IsBlank(label) {
return nil, parser.NoChildren
}
item := ast.NewFootnote(label)
pos = next + 1 - padding
if pos >= len(line) {
reader.Advance(pos)
return item, parser.NoChildren
}
reader.AdvanceAndSetPadding(pos, padding)
return item, parser.HasChildren
}
func (b *footnoteBlockParser) Continue(node gast.Node, reader text.Reader, pc parser.Context) parser.State {
line, _ := reader.PeekLine()
if util.IsBlank(line) {
return parser.Continue | parser.HasChildren
}
childpos, padding := util.IndentPosition(line, reader.LineOffset(), 4)
if childpos < 0 {
return parser.Close
}
reader.AdvanceAndSetPadding(childpos, padding)
return parser.Continue | parser.HasChildren
}
func (b *footnoteBlockParser) Close(node gast.Node, reader text.Reader, pc parser.Context) {
var list *ast.FootnoteList
if tlist := pc.Get(footnoteListKey); tlist != nil {
list = tlist.(*ast.FootnoteList)
} else {
list = ast.NewFootnoteList()
pc.Set(footnoteListKey, list)
node.Parent().InsertBefore(node.Parent(), node, list)
}
node.Parent().RemoveChild(node.Parent(), node)
list.AppendChild(list, node)
}
func (b *footnoteBlockParser) CanInterruptParagraph() bool {
return true
}
func (b *footnoteBlockParser) CanAcceptIndentedLine() bool {
return false
}
type footnoteParser struct {
}
var defaultFootnoteParser = &footnoteParser{}
// NewFootnoteParser returns a new parser.InlineParser that can parse
// footnote links of the Markdown(PHP Markdown Extra) text.
func NewFootnoteParser() parser.InlineParser {
return defaultFootnoteParser
}
func (s *footnoteParser) Trigger() []byte {
// footnote syntax probably conflict with the image syntax.
// So we need trigger this parser with '!'.
return []byte{'!', '['}
}
func (s *footnoteParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node {
line, segment := block.PeekLine()
pos := 1
if len(line) > 0 && line[0] == '!' {
pos++
}
if pos >= len(line) || line[pos] != '^' {
return nil
}
pos++
if pos >= len(line) {
return nil
}
open := pos
closure := util.FindClosure(line[pos:], '[', ']', false, false) //nolint:staticcheck
if closure < 0 {
return nil
}
closes := pos + closure
value := block.Value(text.NewSegment(segment.Start+open, segment.Start+closes))
block.Advance(closes + 1)
var list *ast.FootnoteList
if tlist := pc.Get(footnoteListKey); tlist != nil {
list = tlist.(*ast.FootnoteList)
}
if list == nil {
return nil
}
index := 0
for def := list.FirstChild(); def != nil; def = def.NextSibling() {
d := def.(*ast.Footnote)
if bytes.Equal(d.Ref, value) {
if d.Index < 0 {
list.Count++
d.Index = list.Count
}
index = d.Index
break
}
}
if index == 0 {
return nil
}
fnlink := ast.NewFootnoteLink(index)
var fnlist []*ast.FootnoteLink
if tmp := pc.Get(footnoteLinkListKey); tmp != nil {
fnlist = tmp.([]*ast.FootnoteLink)
} else {
fnlist = []*ast.FootnoteLink{}
pc.Set(footnoteLinkListKey, fnlist)
}
pc.Set(footnoteLinkListKey, append(fnlist, fnlink))
if line[0] == '!' {
parent.AppendChild(parent, gast.NewTextSegment(text.NewSegment(segment.Start, segment.Start+1)))
}
return fnlink
}
type footnoteASTTransformer struct {
}
var defaultFootnoteASTTransformer = &footnoteASTTransformer{}
// NewFootnoteASTTransformer returns a new parser.ASTTransformer that
// insert a footnote list to the last of the document.
func NewFootnoteASTTransformer() parser.ASTTransformer {
return defaultFootnoteASTTransformer
}
func (a *footnoteASTTransformer) Transform(node *gast.Document, reader text.Reader, pc parser.Context) {
var list *ast.FootnoteList
var fnlist []*ast.FootnoteLink
if tmp := pc.Get(footnoteListKey); tmp != nil {
list = tmp.(*ast.FootnoteList)
}
if tmp := pc.Get(footnoteLinkListKey); tmp != nil {
fnlist = tmp.([]*ast.FootnoteLink)
}
pc.Set(footnoteListKey, nil)
pc.Set(footnoteLinkListKey, nil)
if list == nil {
return
}
counter := map[int]int{}
if fnlist != nil {
for _, fnlink := range fnlist {
if fnlink.Index >= 0 {
counter[fnlink.Index]++
}
}
refCounter := map[int]int{}
for _, fnlink := range fnlist {
fnlink.RefCount = counter[fnlink.Index]
if _, ok := refCounter[fnlink.Index]; !ok {
refCounter[fnlink.Index] = 0
}
fnlink.RefIndex = refCounter[fnlink.Index]
refCounter[fnlink.Index]++
}
}
for footnote := list.FirstChild(); footnote != nil; {
var container gast.Node = footnote
next := footnote.NextSibling()
if fc := container.LastChild(); fc != nil && gast.IsParagraph(fc) {
container = fc
}
fn := footnote.(*ast.Footnote)
index := fn.Index
if index < 0 {
list.RemoveChild(list, footnote)
} else {
refCount := counter[index]
backLink := ast.NewFootnoteBacklink(index)
backLink.RefCount = refCount
backLink.RefIndex = 0
container.AppendChild(container, backLink)
if refCount > 1 {
for i := 1; i < refCount; i++ {
backLink := ast.NewFootnoteBacklink(index)
backLink.RefCount = refCount
backLink.RefIndex = i
container.AppendChild(container, backLink)
}
}
}
footnote = next
}
list.SortChildren(func(n1, n2 gast.Node) int {
if n1.(*ast.Footnote).Index < n2.(*ast.Footnote).Index {
return -1
}
return 1
})
if list.Count <= 0 {
list.Parent().RemoveChild(list.Parent(), list)
return
}
node.AppendChild(node, list)
}
// FootnoteConfig holds configuration values for the footnote extension.
//
// Link* and Backlink* configurations have some variables:
// Occurrences of “^^” in the string will be replaced by the
// corresponding footnote number in the HTML output.
// Occurrences of “%%” will be replaced by a number for the
// reference (footnotes can have multiple references).
type FootnoteConfig struct {
html.Config
// IDPrefix is a prefix for the id attributes generated by footnotes.
IDPrefix []byte
// IDPrefix is a function that determines the id attribute for given Node.
IDPrefixFunction func(gast.Node) []byte
// LinkTitle is an optional title attribute for footnote links.
LinkTitle []byte
// BacklinkTitle is an optional title attribute for footnote backlinks.
BacklinkTitle []byte
// LinkClass is a class for footnote links.
LinkClass []byte
// BacklinkClass is a class for footnote backlinks.
BacklinkClass []byte
// BacklinkHTML is an HTML content for footnote backlinks.
BacklinkHTML []byte
}
// FootnoteOption interface is a functional option interface for the extension.
type FootnoteOption interface {
renderer.Option
// SetFootnoteOption sets given option to the extension.
SetFootnoteOption(*FootnoteConfig)
}
// NewFootnoteConfig returns a new Config with defaults.
func NewFootnoteConfig() FootnoteConfig {
return FootnoteConfig{
Config: html.NewConfig(),
LinkTitle: []byte(""),
BacklinkTitle: []byte(""),
LinkClass: []byte("footnote-ref"),
BacklinkClass: []byte("footnote-backref"),
BacklinkHTML: []byte("&#x21a9;&#xfe0e;"),
}
}
// SetOption implements renderer.SetOptioner.
func (c *FootnoteConfig) SetOption(name renderer.OptionName, value interface{}) {
switch name {
case optFootnoteIDPrefixFunction:
c.IDPrefixFunction = value.(func(gast.Node) []byte)
case optFootnoteIDPrefix:
c.IDPrefix = value.([]byte)
case optFootnoteLinkTitle:
c.LinkTitle = value.([]byte)
case optFootnoteBacklinkTitle:
c.BacklinkTitle = value.([]byte)
case optFootnoteLinkClass:
c.LinkClass = value.([]byte)
case optFootnoteBacklinkClass:
c.BacklinkClass = value.([]byte)
case optFootnoteBacklinkHTML:
c.BacklinkHTML = value.([]byte)
default:
c.Config.SetOption(name, value)
}
}
type withFootnoteHTMLOptions struct {
value []html.Option
}
func (o *withFootnoteHTMLOptions) SetConfig(c *renderer.Config) {
if o.value != nil {
for _, v := range o.value {
v.(renderer.Option).SetConfig(c)
}
}
}
func (o *withFootnoteHTMLOptions) SetFootnoteOption(c *FootnoteConfig) {
if o.value != nil {
for _, v := range o.value {
v.SetHTMLOption(&c.Config)
}
}
}
// WithFootnoteHTMLOptions is functional option that wraps goldmark HTMLRenderer options.
func WithFootnoteHTMLOptions(opts ...html.Option) FootnoteOption {
return &withFootnoteHTMLOptions{opts}
}
const optFootnoteIDPrefix renderer.OptionName = "FootnoteIDPrefix"
type withFootnoteIDPrefix struct {
value []byte
}
func (o *withFootnoteIDPrefix) SetConfig(c *renderer.Config) {
c.Options[optFootnoteIDPrefix] = o.value
}
func (o *withFootnoteIDPrefix) SetFootnoteOption(c *FootnoteConfig) {
c.IDPrefix = o.value
}
// WithFootnoteIDPrefix is a functional option that is a prefix for the id attributes generated by footnotes.
func WithFootnoteIDPrefix[T []byte | string](a T) FootnoteOption {
return &withFootnoteIDPrefix{[]byte(a)}
}
const optFootnoteIDPrefixFunction renderer.OptionName = "FootnoteIDPrefixFunction"
type withFootnoteIDPrefixFunction struct {
value func(gast.Node) []byte
}
func (o *withFootnoteIDPrefixFunction) SetConfig(c *renderer.Config) {
c.Options[optFootnoteIDPrefixFunction] = o.value
}
func (o *withFootnoteIDPrefixFunction) SetFootnoteOption(c *FootnoteConfig) {
c.IDPrefixFunction = o.value
}
// WithFootnoteIDPrefixFunction is a functional option that is a prefix for the id attributes generated by footnotes.
func WithFootnoteIDPrefixFunction(a func(gast.Node) []byte) FootnoteOption {
return &withFootnoteIDPrefixFunction{a}
}
const optFootnoteLinkTitle renderer.OptionName = "FootnoteLinkTitle"
type withFootnoteLinkTitle struct {
value []byte
}
func (o *withFootnoteLinkTitle) SetConfig(c *renderer.Config) {
c.Options[optFootnoteLinkTitle] = o.value
}
func (o *withFootnoteLinkTitle) SetFootnoteOption(c *FootnoteConfig) {
c.LinkTitle = o.value
}
// WithFootnoteLinkTitle is a functional option that is an optional title attribute for footnote links.
func WithFootnoteLinkTitle[T []byte | string](a T) FootnoteOption {
return &withFootnoteLinkTitle{[]byte(a)}
}
const optFootnoteBacklinkTitle renderer.OptionName = "FootnoteBacklinkTitle"
type withFootnoteBacklinkTitle struct {
value []byte
}
func (o *withFootnoteBacklinkTitle) SetConfig(c *renderer.Config) {
c.Options[optFootnoteBacklinkTitle] = o.value
}
func (o *withFootnoteBacklinkTitle) SetFootnoteOption(c *FootnoteConfig) {
c.BacklinkTitle = o.value
}
// WithFootnoteBacklinkTitle is a functional option that is an optional title attribute for footnote backlinks.
func WithFootnoteBacklinkTitle[T []byte | string](a T) FootnoteOption {
return &withFootnoteBacklinkTitle{[]byte(a)}
}
const optFootnoteLinkClass renderer.OptionName = "FootnoteLinkClass"
type withFootnoteLinkClass struct {
value []byte
}
func (o *withFootnoteLinkClass) SetConfig(c *renderer.Config) {
c.Options[optFootnoteLinkClass] = o.value
}
func (o *withFootnoteLinkClass) SetFootnoteOption(c *FootnoteConfig) {
c.LinkClass = o.value
}
// WithFootnoteLinkClass is a functional option that is a class for footnote links.
func WithFootnoteLinkClass[T []byte | string](a T) FootnoteOption {
return &withFootnoteLinkClass{[]byte(a)}
}
const optFootnoteBacklinkClass renderer.OptionName = "FootnoteBacklinkClass"
type withFootnoteBacklinkClass struct {
value []byte
}
func (o *withFootnoteBacklinkClass) SetConfig(c *renderer.Config) {
c.Options[optFootnoteBacklinkClass] = o.value
}
func (o *withFootnoteBacklinkClass) SetFootnoteOption(c *FootnoteConfig) {
c.BacklinkClass = o.value
}
// WithFootnoteBacklinkClass is a functional option that is a class for footnote backlinks.
func WithFootnoteBacklinkClass[T []byte | string](a T) FootnoteOption {
return &withFootnoteBacklinkClass{[]byte(a)}
}
const optFootnoteBacklinkHTML renderer.OptionName = "FootnoteBacklinkHTML"
type withFootnoteBacklinkHTML struct {
value []byte
}
func (o *withFootnoteBacklinkHTML) SetConfig(c *renderer.Config) {
c.Options[optFootnoteBacklinkHTML] = o.value
}
func (o *withFootnoteBacklinkHTML) SetFootnoteOption(c *FootnoteConfig) {
c.BacklinkHTML = o.value
}
// WithFootnoteBacklinkHTML is an HTML content for footnote backlinks.
func WithFootnoteBacklinkHTML[T []byte | string](a T) FootnoteOption {
return &withFootnoteBacklinkHTML{[]byte(a)}
}
// FootnoteHTMLRenderer is a renderer.NodeRenderer implementation that
// renders FootnoteLink nodes.
type FootnoteHTMLRenderer struct {
FootnoteConfig
}
// NewFootnoteHTMLRenderer returns a new FootnoteHTMLRenderer.
func NewFootnoteHTMLRenderer(opts ...FootnoteOption) renderer.NodeRenderer {
r := &FootnoteHTMLRenderer{
FootnoteConfig: NewFootnoteConfig(),
}
for _, opt := range opts {
opt.SetFootnoteOption(&r.FootnoteConfig)
}
return r
}
// RegisterFuncs implements renderer.NodeRenderer.RegisterFuncs.
func (r *FootnoteHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(ast.KindFootnoteLink, r.renderFootnoteLink)
reg.Register(ast.KindFootnoteBacklink, r.renderFootnoteBacklink)
reg.Register(ast.KindFootnote, r.renderFootnote)
reg.Register(ast.KindFootnoteList, r.renderFootnoteList)
}
func (r *FootnoteHTMLRenderer) renderFootnoteLink(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
n := node.(*ast.FootnoteLink)
is := strconv.Itoa(n.Index)
_, _ = w.WriteString(`<sup id="`)
_, _ = w.Write(r.idPrefix(node))
_, _ = w.WriteString(`fnref`)
if n.RefIndex > 0 {
_, _ = w.WriteString(fmt.Sprintf("%v", n.RefIndex))
}
_ = w.WriteByte(':')
_, _ = w.WriteString(is)
_, _ = w.WriteString(`"><a href="#`)
_, _ = w.Write(r.idPrefix(node))
_, _ = w.WriteString(`fn:`)
_, _ = w.WriteString(is)
_, _ = w.WriteString(`" class="`)
_, _ = w.Write(applyFootnoteTemplate(r.FootnoteConfig.LinkClass,
n.Index, n.RefCount))
if len(r.FootnoteConfig.LinkTitle) > 0 {
_, _ = w.WriteString(`" title="`)
_, _ = w.Write(util.EscapeHTML(applyFootnoteTemplate(r.FootnoteConfig.LinkTitle, n.Index, n.RefCount)))
}
_, _ = w.WriteString(`" role="doc-noteref">`)
_, _ = w.WriteString(is)
_, _ = w.WriteString(`</a></sup>`)
}
return gast.WalkContinue, nil
}
func (r *FootnoteHTMLRenderer) renderFootnoteBacklink(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
n := node.(*ast.FootnoteBacklink)
is := strconv.Itoa(n.Index)
_, _ = w.WriteString(`&#160;<a href="#`)
_, _ = w.Write(r.idPrefix(node))
_, _ = w.WriteString(`fnref`)
if n.RefIndex > 0 {
_, _ = w.WriteString(fmt.Sprintf("%v", n.RefIndex))
}
_ = w.WriteByte(':')
_, _ = w.WriteString(is)
_, _ = w.WriteString(`" class="`)
_, _ = w.Write(applyFootnoteTemplate(r.FootnoteConfig.BacklinkClass, n.Index, n.RefCount))
if len(r.FootnoteConfig.BacklinkTitle) > 0 {
_, _ = w.WriteString(`" title="`)
_, _ = w.Write(util.EscapeHTML(applyFootnoteTemplate(r.FootnoteConfig.BacklinkTitle, n.Index, n.RefCount)))
}
_, _ = w.WriteString(`" role="doc-backlink">`)
_, _ = w.Write(applyFootnoteTemplate(r.FootnoteConfig.BacklinkHTML, n.Index, n.RefCount))
_, _ = w.WriteString(`</a>`)
}
return gast.WalkContinue, nil
}
func (r *FootnoteHTMLRenderer) renderFootnote(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
n := node.(*ast.Footnote)
is := strconv.Itoa(n.Index)
if entering {
_, _ = w.WriteString(`<li id="`)
_, _ = w.Write(r.idPrefix(node))
_, _ = w.WriteString(`fn:`)
_, _ = w.WriteString(is)
_, _ = w.WriteString(`"`)
if node.Attributes() != nil {
html.RenderAttributes(w, node, html.ListItemAttributeFilter)
}
_, _ = w.WriteString(">\n")
} else {
_, _ = w.WriteString("</li>\n")
}
return gast.WalkContinue, nil
}
func (r *FootnoteHTMLRenderer) renderFootnoteList(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
_, _ = w.WriteString(`<div class="footnotes" role="doc-endnotes"`)
if node.Attributes() != nil {
html.RenderAttributes(w, node, html.GlobalAttributeFilter)
}
_ = w.WriteByte('>')
if r.Config.XHTML {
_, _ = w.WriteString("\n<hr />\n")
} else {
_, _ = w.WriteString("\n<hr>\n")
}
_, _ = w.WriteString("<ol>\n")
} else {
_, _ = w.WriteString("</ol>\n")
_, _ = w.WriteString("</div>\n")
}
return gast.WalkContinue, nil
}
func (r *FootnoteHTMLRenderer) idPrefix(node gast.Node) []byte {
if r.FootnoteConfig.IDPrefix != nil {
return r.FootnoteConfig.IDPrefix
}
if r.FootnoteConfig.IDPrefixFunction != nil {
return r.FootnoteConfig.IDPrefixFunction(node)
}
return []byte("")
}
func applyFootnoteTemplate(b []byte, index, refCount int) []byte {
fast := true
for i, c := range b {
if i != 0 {
if b[i-1] == '^' && c == '^' {
fast = false
break
}
if b[i-1] == '%' && c == '%' {
fast = false
break
}
}
}
if fast {
return b
}
is := []byte(strconv.Itoa(index))
rs := []byte(strconv.Itoa(refCount))
ret := bytes.Replace(b, []byte("^^"), is, -1)
return bytes.Replace(ret, []byte("%%"), rs, -1)
}
type footnote struct {
options []FootnoteOption
}
// Footnote is an extension that allow you to use PHP Markdown Extra Footnotes.
var Footnote = &footnote{
options: []FootnoteOption{},
}
// NewFootnote returns a new extension with given options.
func NewFootnote(opts ...FootnoteOption) goldmark.Extender {
return &footnote{
options: opts,
}
}
func (e *footnote) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(
parser.WithBlockParsers(
util.Prioritized(NewFootnoteBlockParser(), 999),
),
parser.WithInlineParsers(
util.Prioritized(NewFootnoteParser(), 101),
),
parser.WithASTTransformers(
util.Prioritized(NewFootnoteASTTransformer(), 999),
),
)
m.Renderer().AddOptions(renderer.WithNodeRenderers(
util.Prioritized(NewFootnoteHTMLRenderer(e.options...), 500),
))
}

View file

@ -1,141 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
func TestFootnote(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
Footnote,
),
)
testutil.DoTestCaseFile(markdown, "_test/footnote.txt", t, testutil.ParseCliCaseArg()...)
}
type footnoteID struct {
}
func (a *footnoteID) Transform(node *gast.Document, reader text.Reader, pc parser.Context) {
node.Meta()["footnote-prefix"] = "article12-"
}
func TestFootnoteOptions(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewFootnote(
WithFootnoteIDPrefix("article12-"),
WithFootnoteLinkClass("link-class"),
WithFootnoteBacklinkClass("backlink-class"),
WithFootnoteLinkTitle("link-title-%%-^^"),
WithFootnoteBacklinkTitle("backlink-title"),
WithFootnoteBacklinkHTML("^"),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Description: "Footnote with options",
Markdown: `That's some text with a footnote.[^1]
Same footnote.[^1]
Another one.[^2]
[^1]: And that's the footnote.
[^2]: Another footnote.
`,
Expected: `<p>That's some text with a footnote.<sup id="article12-fnref:1"><a href="#article12-fn:1" class="link-class" title="link-title-2-1" role="doc-noteref">1</a></sup></p>
<p>Same footnote.<sup id="article12-fnref1:1"><a href="#article12-fn:1" class="link-class" title="link-title-2-1" role="doc-noteref">1</a></sup></p>
<p>Another one.<sup id="article12-fnref:2"><a href="#article12-fn:2" class="link-class" title="link-title-1-2" role="doc-noteref">2</a></sup></p>
<div class="footnotes" role="doc-endnotes">
<hr>
<ol>
<li id="article12-fn:1">
<p>And that's the footnote.&#160;<a href="#article12-fnref:1" class="backlink-class" title="backlink-title" role="doc-backlink">^</a>&#160;<a href="#article12-fnref1:1" class="backlink-class" title="backlink-title" role="doc-backlink">^</a></p>
</li>
<li id="article12-fn:2">
<p>Another footnote.&#160;<a href="#article12-fnref:2" class="backlink-class" title="backlink-title" role="doc-backlink">^</a></p>
</li>
</ol>
</div>`,
},
t,
)
markdown = goldmark.New(
goldmark.WithParserOptions(
parser.WithASTTransformers(
util.Prioritized(&footnoteID{}, 100),
),
),
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewFootnote(
WithFootnoteIDPrefixFunction(func(n gast.Node) []byte {
v, ok := n.OwnerDocument().Meta()["footnote-prefix"]
if ok {
return util.StringToReadOnlyBytes(v.(string))
}
return nil
}),
WithFootnoteLinkClass([]byte("link-class")),
WithFootnoteBacklinkClass([]byte("backlink-class")),
WithFootnoteLinkTitle([]byte("link-title-%%-^^")),
WithFootnoteBacklinkTitle([]byte("backlink-title")),
WithFootnoteBacklinkHTML([]byte("^")),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 2,
Description: "Footnote with an id prefix function",
Markdown: `That's some text with a footnote.[^1]
Same footnote.[^1]
Another one.[^2]
[^1]: And that's the footnote.
[^2]: Another footnote.
`,
Expected: `<p>That's some text with a footnote.<sup id="article12-fnref:1"><a href="#article12-fn:1" class="link-class" title="link-title-2-1" role="doc-noteref">1</a></sup></p>
<p>Same footnote.<sup id="article12-fnref1:1"><a href="#article12-fn:1" class="link-class" title="link-title-2-1" role="doc-noteref">1</a></sup></p>
<p>Another one.<sup id="article12-fnref:2"><a href="#article12-fn:2" class="link-class" title="link-title-1-2" role="doc-noteref">2</a></sup></p>
<div class="footnotes" role="doc-endnotes">
<hr>
<ol>
<li id="article12-fn:1">
<p>And that's the footnote.&#160;<a href="#article12-fnref:1" class="backlink-class" title="backlink-title" role="doc-backlink">^</a>&#160;<a href="#article12-fnref1:1" class="backlink-class" title="backlink-title" role="doc-backlink">^</a></p>
</li>
<li id="article12-fn:2">
<p>Another footnote.&#160;<a href="#article12-fnref:2" class="backlink-class" title="backlink-title" role="doc-backlink">^</a></p>
</li>
</ol>
</div>`,
},
t,
)
}

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@ -1,18 +0,0 @@
package extension
import (
"github.com/yuin/goldmark"
)
type gfm struct {
}
// GFM is an extension that provides Github Flavored markdown functionalities.
var GFM = &gfm{}
func (e *gfm) Extend(m goldmark.Markdown) {
Linkify.Extend(m)
Table.Extend(m)
Strikethrough.Extend(m)
TaskList.Extend(m)
}

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@ -1,322 +0,0 @@
package extension
import (
"bytes"
"regexp"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var wwwURLRegxp = regexp.MustCompile(`^www\.[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-z]+(?:[/#?][-a-zA-Z0-9@:%_\+.~#!?&/=\(\);,'">\^{}\[\]` + "`" + `]*)?`) //nolint:golint,lll
var urlRegexp = regexp.MustCompile(`^(?:http|https|ftp)://[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-z]+(?::\d+)?(?:[/#?][-a-zA-Z0-9@:%_+.~#$!?&/=\(\);,'">\^{}\[\]` + "`" + `]*)?`) //nolint:golint,lll
// An LinkifyConfig struct is a data structure that holds configuration of the
// Linkify extension.
type LinkifyConfig struct {
AllowedProtocols [][]byte
URLRegexp *regexp.Regexp
WWWRegexp *regexp.Regexp
EmailRegexp *regexp.Regexp
}
const (
optLinkifyAllowedProtocols parser.OptionName = "LinkifyAllowedProtocols"
optLinkifyURLRegexp parser.OptionName = "LinkifyURLRegexp"
optLinkifyWWWRegexp parser.OptionName = "LinkifyWWWRegexp"
optLinkifyEmailRegexp parser.OptionName = "LinkifyEmailRegexp"
)
// SetOption implements SetOptioner.
func (c *LinkifyConfig) SetOption(name parser.OptionName, value interface{}) {
switch name {
case optLinkifyAllowedProtocols:
c.AllowedProtocols = value.([][]byte)
case optLinkifyURLRegexp:
c.URLRegexp = value.(*regexp.Regexp)
case optLinkifyWWWRegexp:
c.WWWRegexp = value.(*regexp.Regexp)
case optLinkifyEmailRegexp:
c.EmailRegexp = value.(*regexp.Regexp)
}
}
// A LinkifyOption interface sets options for the LinkifyOption.
type LinkifyOption interface {
parser.Option
SetLinkifyOption(*LinkifyConfig)
}
type withLinkifyAllowedProtocols struct {
value [][]byte
}
func (o *withLinkifyAllowedProtocols) SetParserOption(c *parser.Config) {
c.Options[optLinkifyAllowedProtocols] = o.value
}
func (o *withLinkifyAllowedProtocols) SetLinkifyOption(p *LinkifyConfig) {
p.AllowedProtocols = o.value
}
// WithLinkifyAllowedProtocols is a functional option that specify allowed
// protocols in autolinks. Each protocol must end with ':' like
// 'http:' .
func WithLinkifyAllowedProtocols[T []byte | string](value []T) LinkifyOption {
opt := &withLinkifyAllowedProtocols{}
for _, v := range value {
opt.value = append(opt.value, []byte(v))
}
return opt
}
type withLinkifyURLRegexp struct {
value *regexp.Regexp
}
func (o *withLinkifyURLRegexp) SetParserOption(c *parser.Config) {
c.Options[optLinkifyURLRegexp] = o.value
}
func (o *withLinkifyURLRegexp) SetLinkifyOption(p *LinkifyConfig) {
p.URLRegexp = o.value
}
// WithLinkifyURLRegexp is a functional option that specify
// a pattern of the URL including a protocol.
func WithLinkifyURLRegexp(value *regexp.Regexp) LinkifyOption {
return &withLinkifyURLRegexp{
value: value,
}
}
type withLinkifyWWWRegexp struct {
value *regexp.Regexp
}
func (o *withLinkifyWWWRegexp) SetParserOption(c *parser.Config) {
c.Options[optLinkifyWWWRegexp] = o.value
}
func (o *withLinkifyWWWRegexp) SetLinkifyOption(p *LinkifyConfig) {
p.WWWRegexp = o.value
}
// WithLinkifyWWWRegexp is a functional option that specify
// a pattern of the URL without a protocol.
// This pattern must start with 'www.' .
func WithLinkifyWWWRegexp(value *regexp.Regexp) LinkifyOption {
return &withLinkifyWWWRegexp{
value: value,
}
}
type withLinkifyEmailRegexp struct {
value *regexp.Regexp
}
func (o *withLinkifyEmailRegexp) SetParserOption(c *parser.Config) {
c.Options[optLinkifyEmailRegexp] = o.value
}
func (o *withLinkifyEmailRegexp) SetLinkifyOption(p *LinkifyConfig) {
p.EmailRegexp = o.value
}
// WithLinkifyEmailRegexp is a functional otpion that specify
// a pattern of the email address.
func WithLinkifyEmailRegexp(value *regexp.Regexp) LinkifyOption {
return &withLinkifyEmailRegexp{
value: value,
}
}
type linkifyParser struct {
LinkifyConfig
}
// NewLinkifyParser return a new InlineParser can parse
// text that seems like a URL.
func NewLinkifyParser(opts ...LinkifyOption) parser.InlineParser {
p := &linkifyParser{
LinkifyConfig: LinkifyConfig{
AllowedProtocols: nil,
URLRegexp: urlRegexp,
WWWRegexp: wwwURLRegxp,
},
}
for _, o := range opts {
o.SetLinkifyOption(&p.LinkifyConfig)
}
return p
}
func (s *linkifyParser) Trigger() []byte {
// ' ' indicates any white spaces and a line head
return []byte{' ', '*', '_', '~', '('}
}
var (
protoHTTP = []byte("http:")
protoHTTPS = []byte("https:")
protoFTP = []byte("ftp:")
domainWWW = []byte("www.")
)
func (s *linkifyParser) Parse(parent ast.Node, block text.Reader, pc parser.Context) ast.Node {
if pc.IsInLinkLabel() {
return nil
}
line, segment := block.PeekLine()
consumes := 0
start := segment.Start
c := line[0]
// advance if current position is not a line head.
if c == ' ' || c == '*' || c == '_' || c == '~' || c == '(' {
consumes++
start++
line = line[1:]
}
var m []int
var protocol []byte
var typ ast.AutoLinkType = ast.AutoLinkURL
if s.LinkifyConfig.AllowedProtocols == nil {
if bytes.HasPrefix(line, protoHTTP) || bytes.HasPrefix(line, protoHTTPS) || bytes.HasPrefix(line, protoFTP) {
m = s.LinkifyConfig.URLRegexp.FindSubmatchIndex(line)
}
} else {
for _, prefix := range s.LinkifyConfig.AllowedProtocols {
if bytes.HasPrefix(line, prefix) {
m = s.LinkifyConfig.URLRegexp.FindSubmatchIndex(line)
break
}
}
}
if m == nil && bytes.HasPrefix(line, domainWWW) {
m = s.LinkifyConfig.WWWRegexp.FindSubmatchIndex(line)
protocol = []byte("http")
}
if m != nil && m[0] != 0 {
m = nil
}
if m != nil && m[0] == 0 {
lastChar := line[m[1]-1]
if lastChar == '.' {
m[1]--
} else if lastChar == ')' {
closing := 0
for i := m[1] - 1; i >= m[0]; i-- {
if line[i] == ')' {
closing++
} else if line[i] == '(' {
closing--
}
}
if closing > 0 {
m[1] -= closing
}
} else if lastChar == ';' {
i := m[1] - 2
for ; i >= m[0]; i-- {
if util.IsAlphaNumeric(line[i]) {
continue
}
break
}
if i != m[1]-2 {
if line[i] == '&' {
m[1] -= m[1] - i
}
}
}
}
if m == nil {
if len(line) > 0 && util.IsPunct(line[0]) {
return nil
}
typ = ast.AutoLinkEmail
stop := -1
if s.LinkifyConfig.EmailRegexp == nil {
stop = util.FindEmailIndex(line)
} else {
m := s.LinkifyConfig.EmailRegexp.FindSubmatchIndex(line)
if m != nil && m[0] == 0 {
stop = m[1]
}
}
if stop < 0 {
return nil
}
at := bytes.IndexByte(line, '@')
m = []int{0, stop, at, stop - 1}
if m == nil || bytes.IndexByte(line[m[2]:m[3]], '.') < 0 {
return nil
}
lastChar := line[m[1]-1]
if lastChar == '.' {
m[1]--
}
if m[1] < len(line) {
nextChar := line[m[1]]
if nextChar == '-' || nextChar == '_' {
return nil
}
}
}
if m == nil {
return nil
}
if consumes != 0 {
s := segment.WithStop(segment.Start + 1)
ast.MergeOrAppendTextSegment(parent, s)
}
i := m[1] - 1
for ; i > 0; i-- {
c := line[i]
switch c {
case '?', '!', '.', ',', ':', '*', '_', '~':
default:
goto endfor
}
}
endfor:
i++
consumes += i
block.Advance(consumes)
n := ast.NewTextSegment(text.NewSegment(start, start+i))
link := ast.NewAutoLink(typ, n)
link.Protocol = protocol
return link
}
func (s *linkifyParser) CloseBlock(parent ast.Node, pc parser.Context) {
// nothing to do
}
type linkify struct {
options []LinkifyOption
}
// Linkify is an extension that allow you to parse text that seems like a URL.
var Linkify = &linkify{}
// NewLinkify creates a new [goldmark.Extender] that
// allow you to parse text that seems like a URL.
func NewLinkify(opts ...LinkifyOption) goldmark.Extender {
return &linkify{
options: opts,
}
}
func (e *linkify) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(
parser.WithInlineParsers(
util.Prioritized(NewLinkifyParser(e.options...), 999),
),
)
}

View file

@ -1,100 +0,0 @@
package extension
import (
"regexp"
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
func TestLinkify(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
Linkify,
),
)
testutil.DoTestCaseFile(markdown, "_test/linkify.txt", t, testutil.ParseCliCaseArg()...)
}
func TestLinkifyWithAllowedProtocols(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewLinkify(
WithLinkifyAllowedProtocols([]string{
"ssh:",
}),
WithLinkifyURLRegexp(
regexp.MustCompile(`\w+://[^\s]+`),
),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Markdown: `hoge ssh://user@hoge.com. http://example.com/`,
Expected: `<p>hoge <a href="ssh://user@hoge.com">ssh://user@hoge.com</a>. http://example.com/</p>`,
},
t,
)
}
func TestLinkifyWithWWWRegexp(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewLinkify(
WithLinkifyWWWRegexp(
regexp.MustCompile(`www\.example\.com`),
),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Markdown: `www.google.com www.example.com`,
Expected: `<p>www.google.com <a href="http://www.example.com">www.example.com</a></p>`,
},
t,
)
}
func TestLinkifyWithEmailRegexp(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewLinkify(
WithLinkifyEmailRegexp(
regexp.MustCompile(`user@example\.com`),
),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Markdown: `hoge@example.com user@example.com`,
Expected: `<p>hoge@example.com <a href="mailto:user@example.com">user@example.com</a></p>`,
},
t,
)
}

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@ -1,2 +0,0 @@
// Package extension is a collection of builtin extensions.
package extension

View file

@ -1,117 +0,0 @@
package extension
import (
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/extension/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type strikethroughDelimiterProcessor struct {
}
func (p *strikethroughDelimiterProcessor) IsDelimiter(b byte) bool {
return b == '~'
}
func (p *strikethroughDelimiterProcessor) CanOpenCloser(opener, closer *parser.Delimiter) bool {
return opener.Char == closer.Char
}
func (p *strikethroughDelimiterProcessor) OnMatch(consumes int) gast.Node {
return ast.NewStrikethrough()
}
var defaultStrikethroughDelimiterProcessor = &strikethroughDelimiterProcessor{}
type strikethroughParser struct {
}
var defaultStrikethroughParser = &strikethroughParser{}
// NewStrikethroughParser return a new InlineParser that parses
// strikethrough expressions.
func NewStrikethroughParser() parser.InlineParser {
return defaultStrikethroughParser
}
func (s *strikethroughParser) Trigger() []byte {
return []byte{'~'}
}
func (s *strikethroughParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node {
before := block.PrecendingCharacter()
line, segment := block.PeekLine()
node := parser.ScanDelimiter(line, before, 2, defaultStrikethroughDelimiterProcessor)
if node == nil {
return nil
}
node.Segment = segment.WithStop(segment.Start + node.OriginalLength)
block.Advance(node.OriginalLength)
pc.PushDelimiter(node)
return node
}
func (s *strikethroughParser) CloseBlock(parent gast.Node, pc parser.Context) {
// nothing to do
}
// StrikethroughHTMLRenderer is a renderer.NodeRenderer implementation that
// renders Strikethrough nodes.
type StrikethroughHTMLRenderer struct {
html.Config
}
// NewStrikethroughHTMLRenderer returns a new StrikethroughHTMLRenderer.
func NewStrikethroughHTMLRenderer(opts ...html.Option) renderer.NodeRenderer {
r := &StrikethroughHTMLRenderer{
Config: html.NewConfig(),
}
for _, opt := range opts {
opt.SetHTMLOption(&r.Config)
}
return r
}
// RegisterFuncs implements renderer.NodeRenderer.RegisterFuncs.
func (r *StrikethroughHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(ast.KindStrikethrough, r.renderStrikethrough)
}
// StrikethroughAttributeFilter defines attribute names which dd elements can have.
var StrikethroughAttributeFilter = html.GlobalAttributeFilter
func (r *StrikethroughHTMLRenderer) renderStrikethrough(
w util.BufWriter, source []byte, n gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
if n.Attributes() != nil {
_, _ = w.WriteString("<del")
html.RenderAttributes(w, n, StrikethroughAttributeFilter)
_ = w.WriteByte('>')
} else {
_, _ = w.WriteString("<del>")
}
} else {
_, _ = w.WriteString("</del>")
}
return gast.WalkContinue, nil
}
type strikethrough struct {
}
// Strikethrough is an extension that allow you to use strikethrough expression like '~~text~~' .
var Strikethrough = &strikethrough{}
func (e *strikethrough) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(parser.WithInlineParsers(
util.Prioritized(NewStrikethroughParser(), 500),
))
m.Renderer().AddOptions(renderer.WithNodeRenderers(
util.Prioritized(NewStrikethroughHTMLRenderer(), 500),
))
}

View file

@ -1,21 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
func TestStrikethrough(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
Strikethrough,
),
)
testutil.DoTestCaseFile(markdown, "_test/strikethrough.txt", t, testutil.ParseCliCaseArg()...)
}

View file

@ -1,564 +0,0 @@
package extension
import (
"bytes"
"fmt"
"regexp"
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/extension/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var escapedPipeCellListKey = parser.NewContextKey()
type escapedPipeCell struct {
Cell *ast.TableCell
Pos []int
Transformed bool
}
// TableCellAlignMethod indicates how are table cells aligned in HTML format.
type TableCellAlignMethod int
const (
// TableCellAlignDefault renders alignments by default method.
// With XHTML, alignments are rendered as an align attribute.
// With HTML5, alignments are rendered as a style attribute.
TableCellAlignDefault TableCellAlignMethod = iota
// TableCellAlignAttribute renders alignments as an align attribute.
TableCellAlignAttribute
// TableCellAlignStyle renders alignments as a style attribute.
TableCellAlignStyle
// TableCellAlignNone does not care about alignments.
// If you using classes or other styles, you can add these attributes
// in an ASTTransformer.
TableCellAlignNone
)
// TableConfig struct holds options for the extension.
type TableConfig struct {
html.Config
// TableCellAlignMethod indicates how are table celss aligned.
TableCellAlignMethod TableCellAlignMethod
}
// TableOption interface is a functional option interface for the extension.
type TableOption interface {
renderer.Option
// SetTableOption sets given option to the extension.
SetTableOption(*TableConfig)
}
// NewTableConfig returns a new Config with defaults.
func NewTableConfig() TableConfig {
return TableConfig{
Config: html.NewConfig(),
TableCellAlignMethod: TableCellAlignDefault,
}
}
// SetOption implements renderer.SetOptioner.
func (c *TableConfig) SetOption(name renderer.OptionName, value interface{}) {
switch name {
case optTableCellAlignMethod:
c.TableCellAlignMethod = value.(TableCellAlignMethod)
default:
c.Config.SetOption(name, value)
}
}
type withTableHTMLOptions struct {
value []html.Option
}
func (o *withTableHTMLOptions) SetConfig(c *renderer.Config) {
if o.value != nil {
for _, v := range o.value {
v.(renderer.Option).SetConfig(c)
}
}
}
func (o *withTableHTMLOptions) SetTableOption(c *TableConfig) {
if o.value != nil {
for _, v := range o.value {
v.SetHTMLOption(&c.Config)
}
}
}
// WithTableHTMLOptions is functional option that wraps goldmark HTMLRenderer options.
func WithTableHTMLOptions(opts ...html.Option) TableOption {
return &withTableHTMLOptions{opts}
}
const optTableCellAlignMethod renderer.OptionName = "TableTableCellAlignMethod"
type withTableCellAlignMethod struct {
value TableCellAlignMethod
}
func (o *withTableCellAlignMethod) SetConfig(c *renderer.Config) {
c.Options[optTableCellAlignMethod] = o.value
}
func (o *withTableCellAlignMethod) SetTableOption(c *TableConfig) {
c.TableCellAlignMethod = o.value
}
// WithTableCellAlignMethod is a functional option that indicates how are table cells aligned in HTML format.
func WithTableCellAlignMethod(a TableCellAlignMethod) TableOption {
return &withTableCellAlignMethod{a}
}
func isTableDelim(bs []byte) bool {
if w, _ := util.IndentWidth(bs, 0); w > 3 {
return false
}
for _, b := range bs {
if !(util.IsSpace(b) || b == '-' || b == '|' || b == ':') {
return false
}
}
return true
}
var tableDelimLeft = regexp.MustCompile(`^\s*\:\-+\s*$`)
var tableDelimRight = regexp.MustCompile(`^\s*\-+\:\s*$`)
var tableDelimCenter = regexp.MustCompile(`^\s*\:\-+\:\s*$`)
var tableDelimNone = regexp.MustCompile(`^\s*\-+\s*$`)
type tableParagraphTransformer struct {
}
var defaultTableParagraphTransformer = &tableParagraphTransformer{}
// NewTableParagraphTransformer returns a new ParagraphTransformer
// that can transform paragraphs into tables.
func NewTableParagraphTransformer() parser.ParagraphTransformer {
return defaultTableParagraphTransformer
}
func (b *tableParagraphTransformer) Transform(node *gast.Paragraph, reader text.Reader, pc parser.Context) {
lines := node.Lines()
if lines.Len() < 2 {
return
}
for i := 1; i < lines.Len(); i++ {
alignments := b.parseDelimiter(lines.At(i), reader)
if alignments == nil {
continue
}
header := b.parseRow(lines.At(i-1), alignments, true, reader, pc)
if header == nil || len(alignments) != header.ChildCount() {
return
}
table := ast.NewTable()
table.Alignments = alignments
table.AppendChild(table, ast.NewTableHeader(header))
for j := i + 1; j < lines.Len(); j++ {
table.AppendChild(table, b.parseRow(lines.At(j), alignments, false, reader, pc))
}
node.Lines().SetSliced(0, i-1)
node.Parent().InsertAfter(node.Parent(), node, table)
if node.Lines().Len() == 0 {
node.Parent().RemoveChild(node.Parent(), node)
} else {
last := node.Lines().At(i - 2)
last.Stop = last.Stop - 1 // trim last newline(\n)
node.Lines().Set(i-2, last)
}
}
}
func (b *tableParagraphTransformer) parseRow(segment text.Segment,
alignments []ast.Alignment, isHeader bool, reader text.Reader, pc parser.Context) *ast.TableRow {
source := reader.Source()
line := segment.Value(source)
pos := 0
pos += util.TrimLeftSpaceLength(line)
limit := len(line)
limit -= util.TrimRightSpaceLength(line)
row := ast.NewTableRow(alignments)
if len(line) > 0 && line[pos] == '|' {
pos++
}
if len(line) > 0 && line[limit-1] == '|' {
limit--
}
i := 0
for ; pos < limit; i++ {
alignment := ast.AlignNone
if i >= len(alignments) {
if !isHeader {
return row
}
} else {
alignment = alignments[i]
}
var escapedCell *escapedPipeCell
node := ast.NewTableCell()
node.Alignment = alignment
hasBacktick := false
closure := pos
for ; closure < limit; closure++ {
if line[closure] == '`' {
hasBacktick = true
}
if line[closure] == '|' {
if closure == 0 || line[closure-1] != '\\' {
break
} else if hasBacktick {
if escapedCell == nil {
escapedCell = &escapedPipeCell{node, []int{}, false}
escapedList := pc.ComputeIfAbsent(escapedPipeCellListKey,
func() interface{} {
return []*escapedPipeCell{}
}).([]*escapedPipeCell)
escapedList = append(escapedList, escapedCell)
pc.Set(escapedPipeCellListKey, escapedList)
}
escapedCell.Pos = append(escapedCell.Pos, segment.Start+closure-1)
}
}
}
seg := text.NewSegment(segment.Start+pos, segment.Start+closure)
seg = seg.TrimLeftSpace(source)
seg = seg.TrimRightSpace(source)
node.Lines().Append(seg)
row.AppendChild(row, node)
pos = closure + 1
}
for ; i < len(alignments); i++ {
row.AppendChild(row, ast.NewTableCell())
}
return row
}
func (b *tableParagraphTransformer) parseDelimiter(segment text.Segment, reader text.Reader) []ast.Alignment {
line := segment.Value(reader.Source())
if !isTableDelim(line) {
return nil
}
cols := bytes.Split(line, []byte{'|'})
if util.IsBlank(cols[0]) {
cols = cols[1:]
}
if len(cols) > 0 && util.IsBlank(cols[len(cols)-1]) {
cols = cols[:len(cols)-1]
}
var alignments []ast.Alignment
for _, col := range cols {
if tableDelimLeft.Match(col) {
alignments = append(alignments, ast.AlignLeft)
} else if tableDelimRight.Match(col) {
alignments = append(alignments, ast.AlignRight)
} else if tableDelimCenter.Match(col) {
alignments = append(alignments, ast.AlignCenter)
} else if tableDelimNone.Match(col) {
alignments = append(alignments, ast.AlignNone)
} else {
return nil
}
}
return alignments
}
type tableASTTransformer struct {
}
var defaultTableASTTransformer = &tableASTTransformer{}
// NewTableASTTransformer returns a parser.ASTTransformer for tables.
func NewTableASTTransformer() parser.ASTTransformer {
return defaultTableASTTransformer
}
func (a *tableASTTransformer) Transform(node *gast.Document, reader text.Reader, pc parser.Context) {
lst := pc.Get(escapedPipeCellListKey)
if lst == nil {
return
}
pc.Set(escapedPipeCellListKey, nil)
for _, v := range lst.([]*escapedPipeCell) {
if v.Transformed {
continue
}
_ = gast.Walk(v.Cell, func(n gast.Node, entering bool) (gast.WalkStatus, error) {
if !entering || n.Kind() != gast.KindCodeSpan {
return gast.WalkContinue, nil
}
for c := n.FirstChild(); c != nil; {
next := c.NextSibling()
if c.Kind() != gast.KindText {
c = next
continue
}
parent := c.Parent()
ts := &c.(*gast.Text).Segment
n := c
for _, v := range lst.([]*escapedPipeCell) {
for _, pos := range v.Pos {
if ts.Start <= pos && pos < ts.Stop {
segment := n.(*gast.Text).Segment
n1 := gast.NewRawTextSegment(segment.WithStop(pos))
n2 := gast.NewRawTextSegment(segment.WithStart(pos + 1))
parent.InsertAfter(parent, n, n1)
parent.InsertAfter(parent, n1, n2)
parent.RemoveChild(parent, n)
n = n2
v.Transformed = true
}
}
}
c = next
}
return gast.WalkContinue, nil
})
}
}
// TableHTMLRenderer is a renderer.NodeRenderer implementation that
// renders Table nodes.
type TableHTMLRenderer struct {
TableConfig
}
// NewTableHTMLRenderer returns a new TableHTMLRenderer.
func NewTableHTMLRenderer(opts ...TableOption) renderer.NodeRenderer {
r := &TableHTMLRenderer{
TableConfig: NewTableConfig(),
}
for _, opt := range opts {
opt.SetTableOption(&r.TableConfig)
}
return r
}
// RegisterFuncs implements renderer.NodeRenderer.RegisterFuncs.
func (r *TableHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(ast.KindTable, r.renderTable)
reg.Register(ast.KindTableHeader, r.renderTableHeader)
reg.Register(ast.KindTableRow, r.renderTableRow)
reg.Register(ast.KindTableCell, r.renderTableCell)
}
// TableAttributeFilter defines attribute names which table elements can have.
var TableAttributeFilter = html.GlobalAttributeFilter.Extend(
[]byte("align"), // [Deprecated]
[]byte("bgcolor"), // [Deprecated]
[]byte("border"), // [Deprecated]
[]byte("cellpadding"), // [Deprecated]
[]byte("cellspacing"), // [Deprecated]
[]byte("frame"), // [Deprecated]
[]byte("rules"), // [Deprecated]
[]byte("summary"), // [Deprecated]
[]byte("width"), // [Deprecated]
)
func (r *TableHTMLRenderer) renderTable(
w util.BufWriter, source []byte, n gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
_, _ = w.WriteString("<table")
if n.Attributes() != nil {
html.RenderAttributes(w, n, TableAttributeFilter)
}
_, _ = w.WriteString(">\n")
} else {
_, _ = w.WriteString("</table>\n")
}
return gast.WalkContinue, nil
}
// TableHeaderAttributeFilter defines attribute names which <thead> elements can have.
var TableHeaderAttributeFilter = html.GlobalAttributeFilter.Extend(
[]byte("align"), // [Deprecated since HTML4] [Obsolete since HTML5]
[]byte("bgcolor"), // [Not Standardized]
[]byte("char"), // [Deprecated since HTML4] [Obsolete since HTML5]
[]byte("charoff"), // [Deprecated since HTML4] [Obsolete since HTML5]
[]byte("valign"), // [Deprecated since HTML4] [Obsolete since HTML5]
)
func (r *TableHTMLRenderer) renderTableHeader(
w util.BufWriter, source []byte, n gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
_, _ = w.WriteString("<thead")
if n.Attributes() != nil {
html.RenderAttributes(w, n, TableHeaderAttributeFilter)
}
_, _ = w.WriteString(">\n")
_, _ = w.WriteString("<tr>\n") // Header <tr> has no separate handle
} else {
_, _ = w.WriteString("</tr>\n")
_, _ = w.WriteString("</thead>\n")
if n.NextSibling() != nil {
_, _ = w.WriteString("<tbody>\n")
}
}
return gast.WalkContinue, nil
}
// TableRowAttributeFilter defines attribute names which <tr> elements can have.
var TableRowAttributeFilter = html.GlobalAttributeFilter.Extend(
[]byte("align"), // [Obsolete since HTML5]
[]byte("bgcolor"), // [Obsolete since HTML5]
[]byte("char"), // [Obsolete since HTML5]
[]byte("charoff"), // [Obsolete since HTML5]
[]byte("valign"), // [Obsolete since HTML5]
)
func (r *TableHTMLRenderer) renderTableRow(
w util.BufWriter, source []byte, n gast.Node, entering bool) (gast.WalkStatus, error) {
if entering {
_, _ = w.WriteString("<tr")
if n.Attributes() != nil {
html.RenderAttributes(w, n, TableRowAttributeFilter)
}
_, _ = w.WriteString(">\n")
} else {
_, _ = w.WriteString("</tr>\n")
if n.Parent().LastChild() == n {
_, _ = w.WriteString("</tbody>\n")
}
}
return gast.WalkContinue, nil
}
// TableThCellAttributeFilter defines attribute names which table <th> cells can have.
var TableThCellAttributeFilter = html.GlobalAttributeFilter.Extend(
[]byte("abbr"), // [OK] Contains a short abbreviated description of the cell's content [NOT OK in <td>]
[]byte("align"), // [Obsolete since HTML5]
[]byte("axis"), // [Obsolete since HTML5]
[]byte("bgcolor"), // [Not Standardized]
[]byte("char"), // [Obsolete since HTML5]
[]byte("charoff"), // [Obsolete since HTML5]
[]byte("colspan"), // [OK] Number of columns that the cell is to span
[]byte("headers"), // [OK] This attribute contains a list of space-separated
// strings, each corresponding to the id attribute of the <th> elements that apply to this element
[]byte("height"), // [Deprecated since HTML4] [Obsolete since HTML5]
[]byte("rowspan"), // [OK] Number of rows that the cell is to span
[]byte("scope"), // [OK] This enumerated attribute defines the cells that
// the header (defined in the <th>) element relates to [NOT OK in <td>]
[]byte("valign"), // [Obsolete since HTML5]
[]byte("width"), // [Deprecated since HTML4] [Obsolete since HTML5]
)
// TableTdCellAttributeFilter defines attribute names which table <td> cells can have.
var TableTdCellAttributeFilter = html.GlobalAttributeFilter.Extend(
[]byte("abbr"), // [Obsolete since HTML5] [OK in <th>]
[]byte("align"), // [Obsolete since HTML5]
[]byte("axis"), // [Obsolete since HTML5]
[]byte("bgcolor"), // [Not Standardized]
[]byte("char"), // [Obsolete since HTML5]
[]byte("charoff"), // [Obsolete since HTML5]
[]byte("colspan"), // [OK] Number of columns that the cell is to span
[]byte("headers"), // [OK] This attribute contains a list of space-separated
// strings, each corresponding to the id attribute of the <th> elements that apply to this element
[]byte("height"), // [Deprecated since HTML4] [Obsolete since HTML5]
[]byte("rowspan"), // [OK] Number of rows that the cell is to span
[]byte("scope"), // [Obsolete since HTML5] [OK in <th>]
[]byte("valign"), // [Obsolete since HTML5]
[]byte("width"), // [Deprecated since HTML4] [Obsolete since HTML5]
)
func (r *TableHTMLRenderer) renderTableCell(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
n := node.(*ast.TableCell)
tag := "td"
if n.Parent().Kind() == ast.KindTableHeader {
tag = "th"
}
if entering {
fmt.Fprintf(w, "<%s", tag)
if n.Alignment != ast.AlignNone {
amethod := r.TableConfig.TableCellAlignMethod
if amethod == TableCellAlignDefault {
if r.Config.XHTML {
amethod = TableCellAlignAttribute
} else {
amethod = TableCellAlignStyle
}
}
switch amethod {
case TableCellAlignAttribute:
if _, ok := n.AttributeString("align"); !ok { // Skip align render if overridden
fmt.Fprintf(w, ` align="%s"`, n.Alignment.String())
}
case TableCellAlignStyle:
v, ok := n.AttributeString("style")
var cob util.CopyOnWriteBuffer
if ok {
cob = util.NewCopyOnWriteBuffer(v.([]byte))
cob.AppendByte(';')
}
style := fmt.Sprintf("text-align:%s", n.Alignment.String())
cob.AppendString(style)
n.SetAttributeString("style", cob.Bytes())
}
}
if n.Attributes() != nil {
if tag == "td" {
html.RenderAttributes(w, n, TableTdCellAttributeFilter) // <td>
} else {
html.RenderAttributes(w, n, TableThCellAttributeFilter) // <th>
}
}
_ = w.WriteByte('>')
} else {
fmt.Fprintf(w, "</%s>\n", tag)
}
return gast.WalkContinue, nil
}
type table struct {
options []TableOption
}
// Table is an extension that allow you to use GFM tables .
var Table = &table{
options: []TableOption{},
}
// NewTable returns a new extension with given options.
func NewTable(opts ...TableOption) goldmark.Extender {
return &table{
options: opts,
}
}
func (e *table) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(
parser.WithParagraphTransformers(
util.Prioritized(NewTableParagraphTransformer(), 200),
),
parser.WithASTTransformers(
util.Prioritized(defaultTableASTTransformer, 0),
),
)
m.Renderer().AddOptions(renderer.WithNodeRenderers(
util.Prioritized(NewTableHTMLRenderer(e.options...), 500),
))
}

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@ -1,357 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/ast"
east "github.com/yuin/goldmark/extension/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
func TestTable(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
html.WithXHTML(),
),
goldmark.WithExtensions(
Table,
),
)
testutil.DoTestCaseFile(markdown, "_test/table.txt", t, testutil.ParseCliCaseArg()...)
}
func TestTableWithAlignDefault(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignDefault),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Description: "Cell with TableCellAlignDefault and XHTML should be rendered as an align attribute",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th align="center">abc</th>
<th align="right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center">bar</td>
<td align="right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
markdown = goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignDefault),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 2,
Description: "Cell with TableCellAlignDefault and HTML5 should be rendered as a style attribute",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th style="text-align:center">abc</th>
<th style="text-align:right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">bar</td>
<td style="text-align:right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
}
func TestTableWithAlignAttribute(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignAttribute),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Description: "Cell with TableCellAlignAttribute and XHTML should be rendered as an align attribute",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th align="center">abc</th>
<th align="right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center">bar</td>
<td align="right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
markdown = goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignAttribute),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 2,
Description: "Cell with TableCellAlignAttribute and HTML5 should be rendered as an align attribute",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th align="center">abc</th>
<th align="right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center">bar</td>
<td align="right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
}
type tableStyleTransformer struct {
}
func (a *tableStyleTransformer) Transform(node *ast.Document, reader text.Reader, pc parser.Context) {
cell := node.FirstChild().FirstChild().FirstChild().(*east.TableCell)
cell.SetAttributeString("style", []byte("font-size:1em"))
}
func TestTableWithAlignStyle(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignStyle),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Description: "Cell with TableCellAlignStyle and XHTML should be rendered as a style attribute",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th style="text-align:center">abc</th>
<th style="text-align:right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">bar</td>
<td style="text-align:right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
markdown = goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignStyle),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 2,
Description: "Cell with TableCellAlignStyle and HTML5 should be rendered as a style attribute",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th style="text-align:center">abc</th>
<th style="text-align:right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">bar</td>
<td style="text-align:right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
markdown = goldmark.New(
goldmark.WithParserOptions(
parser.WithASTTransformers(
util.Prioritized(&tableStyleTransformer{}, 0),
),
),
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignStyle),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 3,
Description: "Styled cell should not be broken the style by the alignments",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th style="font-size:1em;text-align:center">abc</th>
<th style="text-align:right">defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">bar</td>
<td style="text-align:right">baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
}
func TestTableWithAlignNone(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
),
goldmark.WithExtensions(
NewTable(
WithTableCellAlignMethod(TableCellAlignNone),
),
),
)
testutil.DoTestCase(
markdown,
testutil.MarkdownTestCase{
No: 1,
Description: "Cell with TableCellAlignStyle and XHTML should not be rendered",
Markdown: `
| abc | defghi |
:-: | -----------:
bar | baz
`,
Expected: `<table>
<thead>
<tr>
<th>abc</th>
<th>defghi</th>
</tr>
</thead>
<tbody>
<tr>
<td>bar</td>
<td>baz</td>
</tr>
</tbody>
</table>`,
},
t,
)
}

View file

@ -1,120 +0,0 @@
package extension
import (
"regexp"
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/extension/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var taskListRegexp = regexp.MustCompile(`^\[([\sxX])\]\s*`)
type taskCheckBoxParser struct {
}
var defaultTaskCheckBoxParser = &taskCheckBoxParser{}
// NewTaskCheckBoxParser returns a new InlineParser that can parse
// checkboxes in list items.
// This parser must take precedence over the parser.LinkParser.
func NewTaskCheckBoxParser() parser.InlineParser {
return defaultTaskCheckBoxParser
}
func (s *taskCheckBoxParser) Trigger() []byte {
return []byte{'['}
}
func (s *taskCheckBoxParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node {
// Given AST structure must be like
// - List
// - ListItem : parent.Parent
// - TextBlock : parent
// (current line)
if parent.Parent() == nil || parent.Parent().FirstChild() != parent {
return nil
}
if parent.HasChildren() {
return nil
}
if _, ok := parent.Parent().(*gast.ListItem); !ok {
return nil
}
line, _ := block.PeekLine()
m := taskListRegexp.FindSubmatchIndex(line)
if m == nil {
return nil
}
value := line[m[2]:m[3]][0]
block.Advance(m[1])
checked := value == 'x' || value == 'X'
return ast.NewTaskCheckBox(checked)
}
func (s *taskCheckBoxParser) CloseBlock(parent gast.Node, pc parser.Context) {
// nothing to do
}
// TaskCheckBoxHTMLRenderer is a renderer.NodeRenderer implementation that
// renders checkboxes in list items.
type TaskCheckBoxHTMLRenderer struct {
html.Config
}
// NewTaskCheckBoxHTMLRenderer returns a new TaskCheckBoxHTMLRenderer.
func NewTaskCheckBoxHTMLRenderer(opts ...html.Option) renderer.NodeRenderer {
r := &TaskCheckBoxHTMLRenderer{
Config: html.NewConfig(),
}
for _, opt := range opts {
opt.SetHTMLOption(&r.Config)
}
return r
}
// RegisterFuncs implements renderer.NodeRenderer.RegisterFuncs.
func (r *TaskCheckBoxHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(ast.KindTaskCheckBox, r.renderTaskCheckBox)
}
func (r *TaskCheckBoxHTMLRenderer) renderTaskCheckBox(
w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
if !entering {
return gast.WalkContinue, nil
}
n := node.(*ast.TaskCheckBox)
if n.IsChecked {
_, _ = w.WriteString(`<input checked="" disabled="" type="checkbox"`)
} else {
_, _ = w.WriteString(`<input disabled="" type="checkbox"`)
}
if r.XHTML {
_, _ = w.WriteString(" /> ")
} else {
_, _ = w.WriteString("> ")
}
return gast.WalkContinue, nil
}
type taskList struct {
}
// TaskList is an extension that allow you to use GFM task lists.
var TaskList = &taskList{}
func (e *taskList) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(parser.WithInlineParsers(
util.Prioritized(NewTaskCheckBoxParser(), 0),
))
m.Renderer().AddOptions(renderer.WithNodeRenderers(
util.Prioritized(NewTaskCheckBoxHTMLRenderer(), 500),
))
}

View file

@ -1,21 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
func TestTaskList(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
TaskList,
),
)
testutil.DoTestCaseFile(markdown, "_test/tasklist.txt", t, testutil.ParseCliCaseArg()...)
}

View file

@ -1,348 +0,0 @@
package extension
import (
"unicode"
"github.com/yuin/goldmark"
gast "github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var uncloseCounterKey = parser.NewContextKey()
type unclosedCounter struct {
Single int
Double int
}
func (u *unclosedCounter) Reset() {
u.Single = 0
u.Double = 0
}
func getUnclosedCounter(pc parser.Context) *unclosedCounter {
v := pc.Get(uncloseCounterKey)
if v == nil {
v = &unclosedCounter{}
pc.Set(uncloseCounterKey, v)
}
return v.(*unclosedCounter)
}
// TypographicPunctuation is a key of the punctuations that can be replaced with
// typographic entities.
type TypographicPunctuation int
const (
// LeftSingleQuote is ' .
LeftSingleQuote TypographicPunctuation = iota + 1
// RightSingleQuote is ' .
RightSingleQuote
// LeftDoubleQuote is " .
LeftDoubleQuote
// RightDoubleQuote is " .
RightDoubleQuote
// EnDash is -- .
EnDash
// EmDash is --- .
EmDash
// Ellipsis is ... .
Ellipsis
// LeftAngleQuote is << .
LeftAngleQuote
// RightAngleQuote is >> .
RightAngleQuote
// Apostrophe is ' .
Apostrophe
typographicPunctuationMax
)
// An TypographerConfig struct is a data structure that holds configuration of the
// Typographer extension.
type TypographerConfig struct {
Substitutions [][]byte
}
func newDefaultSubstitutions() [][]byte {
replacements := make([][]byte, typographicPunctuationMax)
replacements[LeftSingleQuote] = []byte("&lsquo;")
replacements[RightSingleQuote] = []byte("&rsquo;")
replacements[LeftDoubleQuote] = []byte("&ldquo;")
replacements[RightDoubleQuote] = []byte("&rdquo;")
replacements[EnDash] = []byte("&ndash;")
replacements[EmDash] = []byte("&mdash;")
replacements[Ellipsis] = []byte("&hellip;")
replacements[LeftAngleQuote] = []byte("&laquo;")
replacements[RightAngleQuote] = []byte("&raquo;")
replacements[Apostrophe] = []byte("&rsquo;")
return replacements
}
// SetOption implements SetOptioner.
func (b *TypographerConfig) SetOption(name parser.OptionName, value interface{}) {
switch name {
case optTypographicSubstitutions:
b.Substitutions = value.([][]byte)
}
}
// A TypographerOption interface sets options for the TypographerParser.
type TypographerOption interface {
parser.Option
SetTypographerOption(*TypographerConfig)
}
const optTypographicSubstitutions parser.OptionName = "TypographicSubstitutions"
// TypographicSubstitutions is a list of the substitutions for the Typographer extension.
type TypographicSubstitutions map[TypographicPunctuation][]byte
type withTypographicSubstitutions struct {
value [][]byte
}
func (o *withTypographicSubstitutions) SetParserOption(c *parser.Config) {
c.Options[optTypographicSubstitutions] = o.value
}
func (o *withTypographicSubstitutions) SetTypographerOption(p *TypographerConfig) {
p.Substitutions = o.value
}
// WithTypographicSubstitutions is a functional otpion that specify replacement text
// for punctuations.
func WithTypographicSubstitutions[T []byte | string](values map[TypographicPunctuation]T) TypographerOption {
replacements := newDefaultSubstitutions()
for k, v := range values {
replacements[k] = []byte(v)
}
return &withTypographicSubstitutions{replacements}
}
type typographerDelimiterProcessor struct {
}
func (p *typographerDelimiterProcessor) IsDelimiter(b byte) bool {
return b == '\'' || b == '"'
}
func (p *typographerDelimiterProcessor) CanOpenCloser(opener, closer *parser.Delimiter) bool {
return opener.Char == closer.Char
}
func (p *typographerDelimiterProcessor) OnMatch(consumes int) gast.Node {
return nil
}
var defaultTypographerDelimiterProcessor = &typographerDelimiterProcessor{}
type typographerParser struct {
TypographerConfig
}
// NewTypographerParser return a new InlineParser that parses
// typographer expressions.
func NewTypographerParser(opts ...TypographerOption) parser.InlineParser {
p := &typographerParser{
TypographerConfig: TypographerConfig{
Substitutions: newDefaultSubstitutions(),
},
}
for _, o := range opts {
o.SetTypographerOption(&p.TypographerConfig)
}
return p
}
func (s *typographerParser) Trigger() []byte {
return []byte{'\'', '"', '-', '.', ',', '<', '>', '*', '['}
}
func (s *typographerParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node {
line, _ := block.PeekLine()
c := line[0]
if len(line) > 2 {
if c == '-' {
if s.Substitutions[EmDash] != nil && line[1] == '-' && line[2] == '-' { // ---
node := gast.NewString(s.Substitutions[EmDash])
node.SetCode(true)
block.Advance(3)
return node
}
} else if c == '.' {
if s.Substitutions[Ellipsis] != nil && line[1] == '.' && line[2] == '.' { // ...
node := gast.NewString(s.Substitutions[Ellipsis])
node.SetCode(true)
block.Advance(3)
return node
}
return nil
}
}
if len(line) > 1 {
if c == '<' {
if s.Substitutions[LeftAngleQuote] != nil && line[1] == '<' { // <<
node := gast.NewString(s.Substitutions[LeftAngleQuote])
node.SetCode(true)
block.Advance(2)
return node
}
return nil
} else if c == '>' {
if s.Substitutions[RightAngleQuote] != nil && line[1] == '>' { // >>
node := gast.NewString(s.Substitutions[RightAngleQuote])
node.SetCode(true)
block.Advance(2)
return node
}
return nil
} else if s.Substitutions[EnDash] != nil && c == '-' && line[1] == '-' { // --
node := gast.NewString(s.Substitutions[EnDash])
node.SetCode(true)
block.Advance(2)
return node
}
}
if c == '\'' || c == '"' {
before := block.PrecendingCharacter()
d := parser.ScanDelimiter(line, before, 1, defaultTypographerDelimiterProcessor)
if d == nil {
return nil
}
counter := getUnclosedCounter(pc)
if c == '\'' {
if s.Substitutions[Apostrophe] != nil {
// Handle decade abbrevations such as '90s
if d.CanOpen && !d.CanClose && len(line) > 3 &&
util.IsNumeric(line[1]) && util.IsNumeric(line[2]) && line[3] == 's' {
after := rune(' ')
if len(line) > 4 {
after = util.ToRune(line, 4)
}
if len(line) == 3 || util.IsSpaceRune(after) || util.IsPunctRune(after) {
node := gast.NewString(s.Substitutions[Apostrophe])
node.SetCode(true)
block.Advance(1)
return node
}
}
// special cases: 'twas, 'em, 'net
if len(line) > 1 && (unicode.IsPunct(before) || unicode.IsSpace(before)) &&
(line[1] == 't' || line[1] == 'e' || line[1] == 'n' || line[1] == 'l') {
node := gast.NewString(s.Substitutions[Apostrophe])
node.SetCode(true)
block.Advance(1)
return node
}
// Convert normal apostrophes. This is probably more flexible than necessary but
// converts any apostrophe in between two alphanumerics.
if len(line) > 1 && (unicode.IsDigit(before) || unicode.IsLetter(before)) &&
(unicode.IsLetter(util.ToRune(line, 1))) {
node := gast.NewString(s.Substitutions[Apostrophe])
node.SetCode(true)
block.Advance(1)
return node
}
}
if s.Substitutions[LeftSingleQuote] != nil && d.CanOpen && !d.CanClose {
nt := LeftSingleQuote
// special cases: Alice's, I'm, Don't, You'd
if len(line) > 1 && (line[1] == 's' || line[1] == 'm' || line[1] == 't' || line[1] == 'd') &&
(len(line) < 3 || util.IsPunct(line[2]) || util.IsSpace(line[2])) {
nt = RightSingleQuote
}
// special cases: I've, I'll, You're
if len(line) > 2 && ((line[1] == 'v' && line[2] == 'e') ||
(line[1] == 'l' && line[2] == 'l') || (line[1] == 'r' && line[2] == 'e')) &&
(len(line) < 4 || util.IsPunct(line[3]) || util.IsSpace(line[3])) {
nt = RightSingleQuote
}
if nt == LeftSingleQuote {
counter.Single++
}
node := gast.NewString(s.Substitutions[nt])
node.SetCode(true)
block.Advance(1)
return node
}
if s.Substitutions[RightSingleQuote] != nil {
// plural possesive and abbreviations: Smiths', doin'
if len(line) > 1 && unicode.IsSpace(util.ToRune(line, 0)) || unicode.IsPunct(util.ToRune(line, 0)) &&
(len(line) > 2 && !unicode.IsDigit(util.ToRune(line, 1))) {
node := gast.NewString(s.Substitutions[RightSingleQuote])
node.SetCode(true)
block.Advance(1)
return node
}
}
if s.Substitutions[RightSingleQuote] != nil && counter.Single > 0 {
isClose := d.CanClose && !d.CanOpen
maybeClose := d.CanClose && d.CanOpen && len(line) > 1 && unicode.IsPunct(util.ToRune(line, 1)) &&
(len(line) == 2 || (len(line) > 2 && util.IsPunct(line[2]) || util.IsSpace(line[2])))
if isClose || maybeClose {
node := gast.NewString(s.Substitutions[RightSingleQuote])
node.SetCode(true)
block.Advance(1)
counter.Single--
return node
}
}
}
if c == '"' {
if s.Substitutions[LeftDoubleQuote] != nil && d.CanOpen && !d.CanClose {
node := gast.NewString(s.Substitutions[LeftDoubleQuote])
node.SetCode(true)
block.Advance(1)
counter.Double++
return node
}
if s.Substitutions[RightDoubleQuote] != nil && counter.Double > 0 {
isClose := d.CanClose && !d.CanOpen
maybeClose := d.CanClose && d.CanOpen && len(line) > 1 && (unicode.IsPunct(util.ToRune(line, 1))) &&
(len(line) == 2 || (len(line) > 2 && util.IsPunct(line[2]) || util.IsSpace(line[2])))
if isClose || maybeClose {
// special case: "Monitor 21""
if len(line) > 1 && line[1] == '"' && unicode.IsDigit(before) {
return nil
}
node := gast.NewString(s.Substitutions[RightDoubleQuote])
node.SetCode(true)
block.Advance(1)
counter.Double--
return node
}
}
}
}
return nil
}
func (s *typographerParser) CloseBlock(parent gast.Node, pc parser.Context) {
getUnclosedCounter(pc).Reset()
}
type typographer struct {
options []TypographerOption
}
// Typographer is an extension that replaces punctuations with typographic entities.
var Typographer = &typographer{}
// NewTypographer returns a new Extender that replaces punctuations with typographic entities.
func NewTypographer(opts ...TypographerOption) goldmark.Extender {
return &typographer{
options: opts,
}
}
func (e *typographer) Extend(m goldmark.Markdown) {
m.Parser().AddOptions(parser.WithInlineParsers(
util.Prioritized(NewTypographerParser(e.options...), 9999),
))
}

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@ -1,21 +0,0 @@
package extension
import (
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
func TestTypographer(t *testing.T) {
markdown := goldmark.New(
goldmark.WithRendererOptions(
html.WithUnsafe(),
),
goldmark.WithExtensions(
Typographer,
),
)
testutil.DoTestCaseFile(markdown, "_test/typographer.txt", t, testutil.ParseCliCaseArg()...)
}

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@ -1,221 +0,0 @@
package goldmark_test
import (
"bytes"
"os"
"strconv"
"strings"
"testing"
"time"
. "github.com/yuin/goldmark"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/testutil"
)
var testTimeoutMultiplier = 1.0
func init() {
m, err := strconv.ParseFloat(os.Getenv("GOLDMARK_TEST_TIMEOUT_MULTIPLIER"), 64)
if err == nil {
testTimeoutMultiplier = m
}
}
func TestExtras(t *testing.T) {
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
testutil.DoTestCaseFile(markdown, "_test/extra.txt", t, testutil.ParseCliCaseArg()...)
}
func TestEndsWithNonSpaceCharacters(t *testing.T) {
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
source := []byte("```\na\n```")
var b bytes.Buffer
err := markdown.Convert(source, &b)
if err != nil {
t.Error(err.Error())
}
if b.String() != "<pre><code>a\n</code></pre>\n" {
t.Errorf("%s \n---------\n %s", source, b.String())
}
}
func TestWindowsNewLine(t *testing.T) {
markdown := New(WithRendererOptions(
html.WithXHTML(),
))
source := []byte("a \r\nb\n")
var b bytes.Buffer
err := markdown.Convert(source, &b)
if err != nil {
t.Error(err.Error())
}
if b.String() != "<p>a<br />\nb</p>\n" {
t.Errorf("%s\n---------\n%s", source, b.String())
}
source = []byte("a\\\r\nb\r\n")
var b2 bytes.Buffer
err = markdown.Convert(source, &b2)
if err != nil {
t.Error(err.Error())
}
if b2.String() != "<p>a<br />\nb</p>\n" {
t.Errorf("\n%s\n---------\n%s", source, b2.String())
}
}
type myIDs struct {
}
func (s *myIDs) Generate(value []byte, kind ast.NodeKind) []byte {
return []byte("my-id")
}
func (s *myIDs) Put(value []byte) {
}
func TestAutogeneratedIDs(t *testing.T) {
ctx := parser.NewContext(parser.WithIDs(&myIDs{}))
markdown := New(WithParserOptions(parser.WithAutoHeadingID()))
source := []byte("# Title1\n## Title2")
var b bytes.Buffer
err := markdown.Convert(source, &b, parser.WithContext(ctx))
if err != nil {
t.Error(err.Error())
}
if b.String() != `<h1 id="my-id">Title1</h1>
<h2 id="my-id">Title2</h2>
` {
t.Errorf("%s\n---------\n%s", source, b.String())
}
}
func nowMillis() int64 {
// TODO: replace UnixNano to UnixMillis(drops Go1.16 support)
return time.Now().UnixNano() / 1000000
}
func TestDeepNestedLabelPerformance(t *testing.T) {
if testing.Short() {
t.Skip("skipping performance test in short mode")
}
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
started := nowMillis()
n := 50000
source := []byte(strings.Repeat("[", n) + strings.Repeat("]", n))
var b bytes.Buffer
_ = markdown.Convert(source, &b)
finished := nowMillis()
if (finished - started) > int64(5000*testTimeoutMultiplier) {
t.Error("Parsing deep nested labels took too long")
}
}
func TestManyProcessingInstructionPerformance(t *testing.T) {
if testing.Short() {
t.Skip("skipping performance test in short mode")
}
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
started := nowMillis()
n := 50000
source := []byte("a " + strings.Repeat("<?", n))
var b bytes.Buffer
_ = markdown.Convert(source, &b)
finished := nowMillis()
if (finished - started) > int64(5000*testTimeoutMultiplier) {
t.Error("Parsing processing instructions took too long")
}
}
func TestManyCDATAPerformance(t *testing.T) {
if testing.Short() {
t.Skip("skipping performance test in short mode")
}
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
started := nowMillis()
n := 50000
source := []byte(strings.Repeat("a <![CDATA[", n))
var b bytes.Buffer
_ = markdown.Convert(source, &b)
finished := nowMillis()
if (finished - started) > int64(5000*testTimeoutMultiplier) {
t.Error("Parsing processing instructions took too long")
}
}
func TestManyDeclPerformance(t *testing.T) {
if testing.Short() {
t.Skip("skipping performance test in short mode")
}
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
started := nowMillis()
n := 50000
source := []byte(strings.Repeat("a <!A ", n))
var b bytes.Buffer
_ = markdown.Convert(source, &b)
finished := nowMillis()
if (finished - started) > int64(5000*testTimeoutMultiplier) {
t.Error("Parsing processing instructions took too long")
}
}
func TestManyCommentPerformance(t *testing.T) {
if testing.Short() {
t.Skip("skipping performance test in short mode")
}
markdown := New(WithRendererOptions(
html.WithXHTML(),
html.WithUnsafe(),
))
started := nowMillis()
n := 50000
source := []byte(strings.Repeat("a <!-- ", n))
var b bytes.Buffer
_ = markdown.Convert(source, &b)
finished := nowMillis()
if (finished - started) > int64(5000*testTimeoutMultiplier) {
t.Error("Parsing processing instructions took too long")
}
}
func TestDangerousURLStringCase(t *testing.T) {
markdown := New()
source := []byte(`[Basic](javascript:alert('Basic'))
[CaseInsensitive](JaVaScRiPt:alert('CaseInsensitive'))
`)
expected := []byte(`<p><a href="">Basic</a>
<a href="">CaseInsensitive</a></p>
`)
var b bytes.Buffer
_ = markdown.Convert(source, &b)
if !bytes.Equal(expected, b.Bytes()) {
t.Error("Dangerous URL should ignore cases:\n" + string(testutil.DiffPretty(expected, b.Bytes())))
}
}

View file

@ -1,57 +0,0 @@
package fuzz
import (
"bytes"
"encoding/json"
"os"
"testing"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/util"
)
func fuzz(f *testing.F) {
f.Fuzz(func(t *testing.T, orig string) {
markdown := goldmark.New(
goldmark.WithParserOptions(
parser.WithAutoHeadingID(),
parser.WithAttribute(),
),
goldmark.WithRendererOptions(
html.WithUnsafe(),
html.WithXHTML(),
),
goldmark.WithExtensions(
extension.DefinitionList,
extension.Footnote,
extension.GFM,
extension.Typographer,
extension.Linkify,
extension.Table,
extension.TaskList,
),
)
var b bytes.Buffer
if err := markdown.Convert(util.StringToReadOnlyBytes(orig), &b); err != nil {
panic(err)
}
})
}
func FuzzDefault(f *testing.F) {
bs, err := os.ReadFile("../_test/spec.json")
if err != nil {
panic(err)
}
var testCases []map[string]interface{}
if err := json.Unmarshal(bs, &testCases); err != nil {
panic(err)
}
for _, c := range testCases {
f.Add(c["markdown"])
}
fuzz(f)
}

View file

@ -1,9 +0,0 @@
package fuzz
import (
"testing"
)
func FuzzOss(f *testing.F) {
fuzz(f)
}

3
go.mod
View file

@ -1,3 +0,0 @@
module github.com/yuin/goldmark
go 1.19

0
go.sum
View file

View file

@ -1,140 +0,0 @@
// Package goldmark implements functions to convert markdown text to a desired format.
package goldmark
import (
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
"io"
)
// DefaultParser returns a new Parser that is configured by default values.
func DefaultParser() parser.Parser {
return parser.NewParser(parser.WithBlockParsers(parser.DefaultBlockParsers()...),
parser.WithInlineParsers(parser.DefaultInlineParsers()...),
parser.WithParagraphTransformers(parser.DefaultParagraphTransformers()...),
)
}
// DefaultRenderer returns a new Renderer that is configured by default values.
func DefaultRenderer() renderer.Renderer {
return renderer.NewRenderer(renderer.WithNodeRenderers(util.Prioritized(html.NewRenderer(), 1000)))
}
var defaultMarkdown = New()
// Convert interprets a UTF-8 bytes source in Markdown and
// write rendered contents to a writer w.
func Convert(source []byte, w io.Writer, opts ...parser.ParseOption) error {
return defaultMarkdown.Convert(source, w, opts...)
}
// A Markdown interface offers functions to convert Markdown text to
// a desired format.
type Markdown interface {
// Convert interprets a UTF-8 bytes source in Markdown and write rendered
// contents to a writer w.
Convert(source []byte, writer io.Writer, opts ...parser.ParseOption) error
// Parser returns a Parser that will be used for conversion.
Parser() parser.Parser
// SetParser sets a Parser to this object.
SetParser(parser.Parser)
// Parser returns a Renderer that will be used for conversion.
Renderer() renderer.Renderer
// SetRenderer sets a Renderer to this object.
SetRenderer(renderer.Renderer)
}
// Option is a functional option type for Markdown objects.
type Option func(*markdown)
// WithExtensions adds extensions.
func WithExtensions(ext ...Extender) Option {
return func(m *markdown) {
m.extensions = append(m.extensions, ext...)
}
}
// WithParser allows you to override the default parser.
func WithParser(p parser.Parser) Option {
return func(m *markdown) {
m.parser = p
}
}
// WithParserOptions applies options for the parser.
func WithParserOptions(opts ...parser.Option) Option {
return func(m *markdown) {
m.parser.AddOptions(opts...)
}
}
// WithRenderer allows you to override the default renderer.
func WithRenderer(r renderer.Renderer) Option {
return func(m *markdown) {
m.renderer = r
}
}
// WithRendererOptions applies options for the renderer.
func WithRendererOptions(opts ...renderer.Option) Option {
return func(m *markdown) {
m.renderer.AddOptions(opts...)
}
}
type markdown struct {
parser parser.Parser
renderer renderer.Renderer
extensions []Extender
}
// New returns a new Markdown with given options.
func New(options ...Option) Markdown {
md := &markdown{
parser: DefaultParser(),
renderer: DefaultRenderer(),
extensions: []Extender{},
}
for _, opt := range options {
opt(md)
}
for _, e := range md.extensions {
e.Extend(md)
}
return md
}
func (m *markdown) Convert(source []byte, writer io.Writer, opts ...parser.ParseOption) error {
reader := text.NewReader(source)
doc := m.parser.Parse(reader, opts...)
return m.renderer.Render(writer, source, doc)
}
func (m *markdown) Parser() parser.Parser {
return m.parser
}
func (m *markdown) SetParser(v parser.Parser) {
m.parser = v
}
func (m *markdown) Renderer() renderer.Renderer {
return m.renderer
}
func (m *markdown) SetRenderer(v renderer.Renderer) {
m.renderer = v
}
// An Extender interface is used for extending Markdown.
type Extender interface {
// Extend extends the Markdown.
Extend(Markdown)
}

View file

@ -1,19 +0,0 @@
package goldmark_test
import (
"testing"
. "github.com/yuin/goldmark"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/testutil"
)
func TestAttributeAndAutoHeadingID(t *testing.T) {
markdown := New(
WithParserOptions(
parser.WithAttribute(),
parser.WithAutoHeadingID(),
),
)
testutil.DoTestCaseFile(markdown, "_test/options.txt", t, testutil.ParseCliCaseArg()...)
}

View file

@ -1,329 +0,0 @@
package parser
import (
"bytes"
"io"
"strconv"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var attrNameID = []byte("id")
var attrNameClass = []byte("class")
// An Attribute is an attribute of the markdown elements.
type Attribute struct {
Name []byte
Value interface{}
}
// An Attributes is a collection of attributes.
type Attributes []Attribute
// Find returns a (value, true) if an attribute correspond with given name is found, otherwise (nil, false).
func (as Attributes) Find(name []byte) (interface{}, bool) {
for _, a := range as {
if bytes.Equal(a.Name, name) {
return a.Value, true
}
}
return nil, false
}
func (as Attributes) findUpdate(name []byte, cb func(v interface{}) interface{}) bool {
for i, a := range as {
if bytes.Equal(a.Name, name) {
as[i].Value = cb(a.Value)
return true
}
}
return false
}
// ParseAttributes parses attributes into a map.
// ParseAttributes returns a parsed attributes and true if could parse
// attributes, otherwise nil and false.
func ParseAttributes(reader text.Reader) (Attributes, bool) {
savedLine, savedPosition := reader.Position()
reader.SkipSpaces()
if reader.Peek() != '{' {
reader.SetPosition(savedLine, savedPosition)
return nil, false
}
reader.Advance(1)
attrs := Attributes{}
for {
if reader.Peek() == '}' {
reader.Advance(1)
return attrs, true
}
attr, ok := parseAttribute(reader)
if !ok {
reader.SetPosition(savedLine, savedPosition)
return nil, false
}
if bytes.Equal(attr.Name, attrNameClass) {
if !attrs.findUpdate(attrNameClass, func(v interface{}) interface{} {
ret := make([]byte, 0, len(v.([]byte))+1+len(attr.Value.([]byte)))
ret = append(ret, v.([]byte)...)
return append(append(ret, ' '), attr.Value.([]byte)...)
}) {
attrs = append(attrs, attr)
}
} else {
attrs = append(attrs, attr)
}
reader.SkipSpaces()
if reader.Peek() == ',' {
reader.Advance(1)
reader.SkipSpaces()
}
}
}
func parseAttribute(reader text.Reader) (Attribute, bool) {
reader.SkipSpaces()
c := reader.Peek()
if c == '#' || c == '.' {
reader.Advance(1)
line, _ := reader.PeekLine()
i := 0
// HTML5 allows any kind of characters as id, but XHTML restricts characters for id.
// CommonMark is basically defined for XHTML(even though it is legacy).
// So we restrict id characters.
for ; i < len(line) && !util.IsSpace(line[i]) &&
(!util.IsPunct(line[i]) || line[i] == '_' ||
line[i] == '-' || line[i] == ':' || line[i] == '.'); i++ {
}
name := attrNameClass
if c == '#' {
name = attrNameID
}
reader.Advance(i)
return Attribute{Name: name, Value: line[0:i]}, true
}
line, _ := reader.PeekLine()
if len(line) == 0 {
return Attribute{}, false
}
c = line[0]
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
c == '_' || c == ':') {
return Attribute{}, false
}
i := 0
for ; i < len(line); i++ {
c = line[i]
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
(c >= '0' && c <= '9') ||
c == '_' || c == ':' || c == '.' || c == '-') {
break
}
}
name := line[:i]
reader.Advance(i)
reader.SkipSpaces()
c = reader.Peek()
if c != '=' {
return Attribute{}, false
}
reader.Advance(1)
reader.SkipSpaces()
value, ok := parseAttributeValue(reader)
if !ok {
return Attribute{}, false
}
if bytes.Equal(name, attrNameClass) {
if _, ok = value.([]byte); !ok {
return Attribute{}, false
}
}
return Attribute{Name: name, Value: value}, true
}
func parseAttributeValue(reader text.Reader) (interface{}, bool) {
reader.SkipSpaces()
c := reader.Peek()
var value interface{}
var ok bool
switch c {
case text.EOF:
return Attribute{}, false
case '{':
value, ok = ParseAttributes(reader)
case '[':
value, ok = parseAttributeArray(reader)
case '"':
value, ok = parseAttributeString(reader)
default:
if c == '-' || c == '+' || util.IsNumeric(c) {
value, ok = parseAttributeNumber(reader)
} else {
value, ok = parseAttributeOthers(reader)
}
}
if !ok {
return nil, false
}
return value, true
}
func parseAttributeArray(reader text.Reader) ([]interface{}, bool) {
reader.Advance(1) // skip [
ret := []interface{}{}
for i := 0; ; i++ {
c := reader.Peek()
comma := false
if i != 0 && c == ',' {
reader.Advance(1)
comma = true
}
if c == ']' {
if !comma {
reader.Advance(1)
return ret, true
}
return nil, false
}
reader.SkipSpaces()
value, ok := parseAttributeValue(reader)
if !ok {
return nil, false
}
ret = append(ret, value)
reader.SkipSpaces()
}
}
func parseAttributeString(reader text.Reader) ([]byte, bool) {
reader.Advance(1) // skip "
line, _ := reader.PeekLine()
i := 0
l := len(line)
var buf bytes.Buffer
for i < l {
c := line[i]
if c == '\\' && i != l-1 {
n := line[i+1]
switch n {
case '"', '/', '\\':
buf.WriteByte(n)
i += 2
case 'b':
buf.WriteString("\b")
i += 2
case 'f':
buf.WriteString("\f")
i += 2
case 'n':
buf.WriteString("\n")
i += 2
case 'r':
buf.WriteString("\r")
i += 2
case 't':
buf.WriteString("\t")
i += 2
default:
buf.WriteByte('\\')
i++
}
continue
}
if c == '"' {
reader.Advance(i + 1)
return buf.Bytes(), true
}
buf.WriteByte(c)
i++
}
return nil, false
}
func scanAttributeDecimal(reader text.Reader, w io.ByteWriter) {
for {
c := reader.Peek()
if util.IsNumeric(c) {
_ = w.WriteByte(c)
} else {
return
}
reader.Advance(1)
}
}
func parseAttributeNumber(reader text.Reader) (float64, bool) {
sign := 1
c := reader.Peek()
if c == '-' {
sign = -1
reader.Advance(1)
} else if c == '+' {
reader.Advance(1)
}
var buf bytes.Buffer
if !util.IsNumeric(reader.Peek()) {
return 0, false
}
scanAttributeDecimal(reader, &buf)
if buf.Len() == 0 {
return 0, false
}
c = reader.Peek()
if c == '.' {
buf.WriteByte(c)
reader.Advance(1)
scanAttributeDecimal(reader, &buf)
}
c = reader.Peek()
if c == 'e' || c == 'E' {
buf.WriteByte(c)
reader.Advance(1)
c = reader.Peek()
if c == '-' || c == '+' {
buf.WriteByte(c)
reader.Advance(1)
}
scanAttributeDecimal(reader, &buf)
}
f, err := strconv.ParseFloat(buf.String(), 64)
if err != nil {
return 0, false
}
return float64(sign) * f, true
}
var bytesTrue = []byte("true")
var bytesFalse = []byte("false")
var bytesNull = []byte("null")
func parseAttributeOthers(reader text.Reader) (interface{}, bool) {
line, _ := reader.PeekLine()
c := line[0]
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
c == '_' || c == ':') {
return nil, false
}
i := 0
for ; i < len(line); i++ {
c := line[i]
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
(c >= '0' && c <= '9') ||
c == '_' || c == ':' || c == '.' || c == '-') {
break
}
}
value := line[:i]
reader.Advance(i)
if bytes.Equal(value, bytesTrue) {
return true, true
}
if bytes.Equal(value, bytesFalse) {
return false, true
}
if bytes.Equal(value, bytesNull) {
return nil, true
}
return value, true
}

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@ -1,248 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
// A HeadingConfig struct is a data structure that holds configuration of the renderers related to headings.
type HeadingConfig struct {
AutoHeadingID bool
Attribute bool
}
// SetOption implements SetOptioner.
func (b *HeadingConfig) SetOption(name OptionName, _ interface{}) {
switch name {
case optAutoHeadingID:
b.AutoHeadingID = true
case optAttribute:
b.Attribute = true
}
}
// A HeadingOption interface sets options for heading parsers.
type HeadingOption interface {
Option
SetHeadingOption(*HeadingConfig)
}
// AutoHeadingID is an option name that enables auto IDs for headings.
const optAutoHeadingID OptionName = "AutoHeadingID"
type withAutoHeadingID struct {
}
func (o *withAutoHeadingID) SetParserOption(c *Config) {
c.Options[optAutoHeadingID] = true
}
func (o *withAutoHeadingID) SetHeadingOption(p *HeadingConfig) {
p.AutoHeadingID = true
}
// WithAutoHeadingID is a functional option that enables custom heading ids and
// auto generated heading ids.
func WithAutoHeadingID() HeadingOption {
return &withAutoHeadingID{}
}
type withHeadingAttribute struct {
Option
}
func (o *withHeadingAttribute) SetHeadingOption(p *HeadingConfig) {
p.Attribute = true
}
// WithHeadingAttribute is a functional option that enables custom heading attributes.
func WithHeadingAttribute() HeadingOption {
return &withHeadingAttribute{WithAttribute()}
}
type atxHeadingParser struct {
HeadingConfig
}
// NewATXHeadingParser return a new BlockParser that can parse ATX headings.
func NewATXHeadingParser(opts ...HeadingOption) BlockParser {
p := &atxHeadingParser{}
for _, o := range opts {
o.SetHeadingOption(&p.HeadingConfig)
}
return p
}
func (b *atxHeadingParser) Trigger() []byte {
return []byte{'#'}
}
func (b *atxHeadingParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
line, segment := reader.PeekLine()
pos := pc.BlockOffset()
if pos < 0 {
return nil, NoChildren
}
i := pos
for ; i < len(line) && line[i] == '#'; i++ {
}
level := i - pos
if i == pos || level > 6 {
return nil, NoChildren
}
if i == len(line) { // alone '#' (without a new line character)
return ast.NewHeading(level), NoChildren
}
l := util.TrimLeftSpaceLength(line[i:])
if l == 0 {
return nil, NoChildren
}
start := i + l
if start >= len(line) {
start = len(line) - 1
}
origstart := start
stop := len(line) - util.TrimRightSpaceLength(line)
node := ast.NewHeading(level)
parsed := false
if b.Attribute { // handles special case like ### heading ### {#id}
start--
closureClose := -1
closureOpen := -1
for j := start; j < stop; {
c := line[j]
if util.IsEscapedPunctuation(line, j) {
j += 2
} else if util.IsSpace(c) && j < stop-1 && line[j+1] == '#' {
closureOpen = j + 1
k := j + 1
for ; k < stop && line[k] == '#'; k++ {
}
closureClose = k
break
} else {
j++
}
}
if closureClose > 0 {
reader.Advance(closureClose)
attrs, ok := ParseAttributes(reader)
rest, _ := reader.PeekLine()
parsed = ok && util.IsBlank(rest)
if parsed {
for _, attr := range attrs {
node.SetAttribute(attr.Name, attr.Value)
}
node.Lines().Append(text.NewSegment(
segment.Start+start+1-segment.Padding,
segment.Start+closureOpen-segment.Padding))
}
}
}
if !parsed {
start = origstart
stop := len(line) - util.TrimRightSpaceLength(line)
if stop <= start { // empty headings like '##[space]'
stop = start
} else {
i = stop - 1
for ; line[i] == '#' && i >= start; i-- {
}
if i != stop-1 && !util.IsSpace(line[i]) {
i = stop - 1
}
i++
stop = i
}
if len(util.TrimRight(line[start:stop], []byte{'#'})) != 0 { // empty heading like '### ###'
node.Lines().Append(text.NewSegment(segment.Start+start-segment.Padding, segment.Start+stop-segment.Padding))
}
}
return node, NoChildren
}
func (b *atxHeadingParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
return Close
}
func (b *atxHeadingParser) Close(node ast.Node, reader text.Reader, pc Context) {
if b.Attribute {
_, ok := node.AttributeString("id")
if !ok {
parseLastLineAttributes(node, reader, pc)
}
}
if b.AutoHeadingID {
id, ok := node.AttributeString("id")
if !ok {
generateAutoHeadingID(node.(*ast.Heading), reader, pc)
} else {
pc.IDs().Put(id.([]byte))
}
}
}
func (b *atxHeadingParser) CanInterruptParagraph() bool {
return true
}
func (b *atxHeadingParser) CanAcceptIndentedLine() bool {
return false
}
func generateAutoHeadingID(node *ast.Heading, reader text.Reader, pc Context) {
var line []byte
lastIndex := node.Lines().Len() - 1
if lastIndex > -1 {
lastLine := node.Lines().At(lastIndex)
line = lastLine.Value(reader.Source())
}
headingID := pc.IDs().Generate(line, ast.KindHeading)
node.SetAttribute(attrNameID, headingID)
}
func parseLastLineAttributes(node ast.Node, reader text.Reader, pc Context) {
lastIndex := node.Lines().Len() - 1
if lastIndex < 0 { // empty headings
return
}
lastLine := node.Lines().At(lastIndex)
line := lastLine.Value(reader.Source())
lr := text.NewReader(line)
var attrs Attributes
var ok bool
var start text.Segment
var sl int
var end text.Segment
for {
c := lr.Peek()
if c == text.EOF {
break
}
if c == '\\' {
lr.Advance(1)
if lr.Peek() == '{' {
lr.Advance(1)
}
continue
}
if c == '{' {
sl, start = lr.Position()
attrs, ok = ParseAttributes(lr)
_, end = lr.Position()
lr.SetPosition(sl, start)
}
lr.Advance(1)
}
if ok && util.IsBlank(line[end.Start:]) {
for _, attr := range attrs {
node.SetAttribute(attr.Name, attr.Value)
}
lastLine.Stop = lastLine.Start + start.Start
node.Lines().Set(lastIndex, lastLine)
}
}

View file

@ -1,42 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type autoLinkParser struct {
}
var defaultAutoLinkParser = &autoLinkParser{}
// NewAutoLinkParser returns a new InlineParser that parses autolinks
// surrounded by '<' and '>' .
func NewAutoLinkParser() InlineParser {
return defaultAutoLinkParser
}
func (s *autoLinkParser) Trigger() []byte {
return []byte{'<'}
}
func (s *autoLinkParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
line, segment := block.PeekLine()
stop := util.FindEmailIndex(line[1:])
typ := ast.AutoLinkType(ast.AutoLinkEmail)
if stop < 0 {
stop = util.FindURLIndex(line[1:])
typ = ast.AutoLinkURL
}
if stop < 0 {
return nil
}
stop++
if stop >= len(line) || line[stop] != '>' {
return nil
}
value := ast.NewTextSegment(text.NewSegment(segment.Start+1, segment.Start+stop))
block.Advance(stop + 1)
return ast.NewAutoLink(typ, value)
}

View file

@ -1,69 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type blockquoteParser struct {
}
var defaultBlockquoteParser = &blockquoteParser{}
// NewBlockquoteParser returns a new BlockParser that
// parses blockquotes.
func NewBlockquoteParser() BlockParser {
return defaultBlockquoteParser
}
func (b *blockquoteParser) process(reader text.Reader) bool {
line, _ := reader.PeekLine()
w, pos := util.IndentWidth(line, reader.LineOffset())
if w > 3 || pos >= len(line) || line[pos] != '>' {
return false
}
pos++
if pos >= len(line) || line[pos] == '\n' {
reader.Advance(pos)
return true
}
if line[pos] == ' ' || line[pos] == '\t' {
pos++
}
reader.Advance(pos)
if line[pos-1] == '\t' {
reader.SetPadding(2)
}
return true
}
func (b *blockquoteParser) Trigger() []byte {
return []byte{'>'}
}
func (b *blockquoteParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
if b.process(reader) {
return ast.NewBlockquote(), HasChildren
}
return nil, NoChildren
}
func (b *blockquoteParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
if b.process(reader) {
return Continue | HasChildren
}
return Close
}
func (b *blockquoteParser) Close(node ast.Node, reader text.Reader, pc Context) {
// nothing to do
}
func (b *blockquoteParser) CanInterruptParagraph() bool {
return true
}
func (b *blockquoteParser) CanAcceptIndentedLine() bool {
return false
}

View file

@ -1,100 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type codeBlockParser struct {
}
// CodeBlockParser is a BlockParser implementation that parses indented code blocks.
var defaultCodeBlockParser = &codeBlockParser{}
// NewCodeBlockParser returns a new BlockParser that
// parses code blocks.
func NewCodeBlockParser() BlockParser {
return defaultCodeBlockParser
}
func (b *codeBlockParser) Trigger() []byte {
return nil
}
func (b *codeBlockParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
line, segment := reader.PeekLine()
pos, padding := util.IndentPosition(line, reader.LineOffset(), 4)
if pos < 0 || util.IsBlank(line) {
return nil, NoChildren
}
node := ast.NewCodeBlock()
reader.AdvanceAndSetPadding(pos, padding)
_, segment = reader.PeekLine()
// if code block line starts with a tab, keep a tab as it is.
if segment.Padding != 0 {
preserveLeadingTabInCodeBlock(&segment, reader, 0)
}
node.Lines().Append(segment)
reader.Advance(segment.Len() - 1)
return node, NoChildren
}
func (b *codeBlockParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
line, segment := reader.PeekLine()
if util.IsBlank(line) {
node.Lines().Append(segment.TrimLeftSpaceWidth(4, reader.Source()))
return Continue | NoChildren
}
pos, padding := util.IndentPosition(line, reader.LineOffset(), 4)
if pos < 0 {
return Close
}
reader.AdvanceAndSetPadding(pos, padding)
_, segment = reader.PeekLine()
// if code block line starts with a tab, keep a tab as it is.
if segment.Padding != 0 {
preserveLeadingTabInCodeBlock(&segment, reader, 0)
}
node.Lines().Append(segment)
reader.Advance(segment.Len() - 1)
return Continue | NoChildren
}
func (b *codeBlockParser) Close(node ast.Node, reader text.Reader, pc Context) {
// trim trailing blank lines
lines := node.Lines()
length := lines.Len() - 1
source := reader.Source()
for length >= 0 {
line := lines.At(length)
if util.IsBlank(line.Value(source)) {
length--
} else {
break
}
}
lines.SetSliced(0, length+1)
}
func (b *codeBlockParser) CanInterruptParagraph() bool {
return false
}
func (b *codeBlockParser) CanAcceptIndentedLine() bool {
return true
}
func preserveLeadingTabInCodeBlock(segment *text.Segment, reader text.Reader, indent int) {
offsetWithPadding := reader.LineOffset() + indent
sl, ss := reader.Position()
reader.SetPosition(sl, text.NewSegment(ss.Start-1, ss.Stop))
if offsetWithPadding == reader.LineOffset() {
segment.Padding = 0
segment.Start--
}
reader.SetPosition(sl, ss)
}

View file

@ -1,84 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
)
type codeSpanParser struct {
}
var defaultCodeSpanParser = &codeSpanParser{}
// NewCodeSpanParser return a new InlineParser that parses inline codes
// surrounded by '`' .
func NewCodeSpanParser() InlineParser {
return defaultCodeSpanParser
}
func (s *codeSpanParser) Trigger() []byte {
return []byte{'`'}
}
func (s *codeSpanParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
line, startSegment := block.PeekLine()
opener := 0
for ; opener < len(line) && line[opener] == '`'; opener++ {
}
block.Advance(opener)
l, pos := block.Position()
node := ast.NewCodeSpan()
for {
line, segment := block.PeekLine()
if line == nil {
block.SetPosition(l, pos)
return ast.NewTextSegment(startSegment.WithStop(startSegment.Start + opener))
}
for i := 0; i < len(line); i++ {
c := line[i]
if c == '`' {
oldi := i
for ; i < len(line) && line[i] == '`'; i++ {
}
closure := i - oldi
if closure == opener && (i >= len(line) || line[i] != '`') {
segment = segment.WithStop(segment.Start + i - closure)
if !segment.IsEmpty() {
node.AppendChild(node, ast.NewRawTextSegment(segment))
}
block.Advance(i)
goto end
}
}
}
node.AppendChild(node, ast.NewRawTextSegment(segment))
block.AdvanceLine()
}
end:
if !node.IsBlank(block.Source()) {
// trim first halfspace and last halfspace
segment := node.FirstChild().(*ast.Text).Segment
shouldTrimmed := true
if !(!segment.IsEmpty() && isSpaceOrNewline(block.Source()[segment.Start])) {
shouldTrimmed = false
}
segment = node.LastChild().(*ast.Text).Segment
if !(!segment.IsEmpty() && isSpaceOrNewline(block.Source()[segment.Stop-1])) {
shouldTrimmed = false
}
if shouldTrimmed {
t := node.FirstChild().(*ast.Text)
segment := t.Segment
t.Segment = segment.WithStart(segment.Start + 1)
t = node.LastChild().(*ast.Text)
segment = node.LastChild().(*ast.Text).Segment
t.Segment = segment.WithStop(segment.Stop - 1)
}
}
return node
}
func isSpaceOrNewline(c byte) bool {
return c == ' ' || c == '\n'
}

View file

@ -1,238 +0,0 @@
package parser
import (
"fmt"
"strings"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
// A DelimiterProcessor interface provides a set of functions about
// Delimiter nodes.
type DelimiterProcessor interface {
// IsDelimiter returns true if given character is a delimiter, otherwise false.
IsDelimiter(byte) bool
// CanOpenCloser returns true if given opener can close given closer, otherwise false.
CanOpenCloser(opener, closer *Delimiter) bool
// OnMatch will be called when new matched delimiter found.
// OnMatch should return a new Node correspond to the matched delimiter.
OnMatch(consumes int) ast.Node
}
// A Delimiter struct represents a delimiter like '*' of the Markdown text.
type Delimiter struct {
ast.BaseInline
Segment text.Segment
// CanOpen is set true if this delimiter can open a span for a new node.
// See https://spec.commonmark.org/0.30/#can-open-emphasis for details.
CanOpen bool
// CanClose is set true if this delimiter can close a span for a new node.
// See https://spec.commonmark.org/0.30/#can-open-emphasis for details.
CanClose bool
// Length is a remaining length of this delimiter.
Length int
// OriginalLength is a original length of this delimiter.
OriginalLength int
// Char is a character of this delimiter.
Char byte
// PreviousDelimiter is a previous sibling delimiter node of this delimiter.
PreviousDelimiter *Delimiter
// NextDelimiter is a next sibling delimiter node of this delimiter.
NextDelimiter *Delimiter
// Processor is a DelimiterProcessor associated with this delimiter.
Processor DelimiterProcessor
}
// Inline implements Inline.Inline.
func (d *Delimiter) Inline() {}
// Dump implements Node.Dump.
func (d *Delimiter) Dump(source []byte, level int) {
fmt.Printf("%sDelimiter: \"%s\"\n", strings.Repeat(" ", level), string(d.Text(source)))
}
var kindDelimiter = ast.NewNodeKind("Delimiter")
// Kind implements Node.Kind.
func (d *Delimiter) Kind() ast.NodeKind {
return kindDelimiter
}
// Text implements Node.Text.
func (d *Delimiter) Text(source []byte) []byte {
return d.Segment.Value(source)
}
// ConsumeCharacters consumes delimiters.
func (d *Delimiter) ConsumeCharacters(n int) {
d.Length -= n
d.Segment = d.Segment.WithStop(d.Segment.Start + d.Length)
}
// CalcComsumption calculates how many characters should be used for opening
// a new span correspond to given closer.
func (d *Delimiter) CalcComsumption(closer *Delimiter) int {
if (d.CanClose || closer.CanOpen) && (d.OriginalLength+closer.OriginalLength)%3 == 0 && closer.OriginalLength%3 != 0 {
return 0
}
if d.Length >= 2 && closer.Length >= 2 {
return 2
}
return 1
}
// NewDelimiter returns a new Delimiter node.
func NewDelimiter(canOpen, canClose bool, length int, char byte, processor DelimiterProcessor) *Delimiter {
c := &Delimiter{
BaseInline: ast.BaseInline{},
CanOpen: canOpen,
CanClose: canClose,
Length: length,
OriginalLength: length,
Char: char,
PreviousDelimiter: nil,
NextDelimiter: nil,
Processor: processor,
}
return c
}
// ScanDelimiter scans a delimiter by given DelimiterProcessor.
func ScanDelimiter(line []byte, before rune, min int, processor DelimiterProcessor) *Delimiter {
i := 0
c := line[i]
j := i
if !processor.IsDelimiter(c) {
return nil
}
for ; j < len(line) && c == line[j]; j++ {
}
if (j - i) >= min {
after := rune(' ')
if j != len(line) {
after = util.ToRune(line, j)
}
var canOpen, canClose bool
beforeIsPunctuation := util.IsPunctRune(before)
beforeIsWhitespace := util.IsSpaceRune(before)
afterIsPunctuation := util.IsPunctRune(after)
afterIsWhitespace := util.IsSpaceRune(after)
isLeft := !afterIsWhitespace &&
(!afterIsPunctuation || beforeIsWhitespace || beforeIsPunctuation)
isRight := !beforeIsWhitespace &&
(!beforeIsPunctuation || afterIsWhitespace || afterIsPunctuation)
if line[i] == '_' {
canOpen = isLeft && (!isRight || beforeIsPunctuation)
canClose = isRight && (!isLeft || afterIsPunctuation)
} else {
canOpen = isLeft
canClose = isRight
}
return NewDelimiter(canOpen, canClose, j-i, c, processor)
}
return nil
}
// ProcessDelimiters processes the delimiter list in the context.
// Processing will be stop when reaching the bottom.
//
// If you implement an inline parser that can have other inline nodes as
// children, you should call this function when nesting span has closed.
func ProcessDelimiters(bottom ast.Node, pc Context) {
lastDelimiter := pc.LastDelimiter()
if lastDelimiter == nil {
return
}
var closer *Delimiter
if bottom != nil {
if bottom != lastDelimiter {
for c := lastDelimiter.PreviousSibling(); c != nil && c != bottom; {
if d, ok := c.(*Delimiter); ok {
closer = d
}
c = c.PreviousSibling()
}
}
} else {
closer = pc.FirstDelimiter()
}
if closer == nil {
pc.ClearDelimiters(bottom)
return
}
for closer != nil {
if !closer.CanClose {
closer = closer.NextDelimiter
continue
}
consume := 0
found := false
maybeOpener := false
var opener *Delimiter
for opener = closer.PreviousDelimiter; opener != nil && opener != bottom; opener = opener.PreviousDelimiter {
if opener.CanOpen && opener.Processor.CanOpenCloser(opener, closer) {
maybeOpener = true
consume = opener.CalcComsumption(closer)
if consume > 0 {
found = true
break
}
}
}
if !found {
next := closer.NextDelimiter
if !maybeOpener && !closer.CanOpen {
pc.RemoveDelimiter(closer)
}
closer = next
continue
}
opener.ConsumeCharacters(consume)
closer.ConsumeCharacters(consume)
node := opener.Processor.OnMatch(consume)
parent := opener.Parent()
child := opener.NextSibling()
for child != nil && child != closer {
next := child.NextSibling()
node.AppendChild(node, child)
child = next
}
parent.InsertAfter(parent, opener, node)
for c := opener.NextDelimiter; c != nil && c != closer; {
next := c.NextDelimiter
pc.RemoveDelimiter(c)
c = next
}
if opener.Length == 0 {
pc.RemoveDelimiter(opener)
}
if closer.Length == 0 {
next := closer.NextDelimiter
pc.RemoveDelimiter(closer)
closer = next
}
}
pc.ClearDelimiters(bottom)
}

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@ -1,50 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
)
type emphasisDelimiterProcessor struct {
}
func (p *emphasisDelimiterProcessor) IsDelimiter(b byte) bool {
return b == '*' || b == '_'
}
func (p *emphasisDelimiterProcessor) CanOpenCloser(opener, closer *Delimiter) bool {
return opener.Char == closer.Char
}
func (p *emphasisDelimiterProcessor) OnMatch(consumes int) ast.Node {
return ast.NewEmphasis(consumes)
}
var defaultEmphasisDelimiterProcessor = &emphasisDelimiterProcessor{}
type emphasisParser struct {
}
var defaultEmphasisParser = &emphasisParser{}
// NewEmphasisParser return a new InlineParser that parses emphasises.
func NewEmphasisParser() InlineParser {
return defaultEmphasisParser
}
func (s *emphasisParser) Trigger() []byte {
return []byte{'*', '_'}
}
func (s *emphasisParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
before := block.PrecendingCharacter()
line, segment := block.PeekLine()
node := ScanDelimiter(line, before, 1, defaultEmphasisDelimiterProcessor)
if node == nil {
return nil
}
node.Segment = segment.WithStop(segment.Start + node.OriginalLength)
block.Advance(node.OriginalLength)
pc.PushDelimiter(node)
return node
}

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@ -1,121 +0,0 @@
package parser
import (
"bytes"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type fencedCodeBlockParser struct {
}
var defaultFencedCodeBlockParser = &fencedCodeBlockParser{}
// NewFencedCodeBlockParser returns a new BlockParser that
// parses fenced code blocks.
func NewFencedCodeBlockParser() BlockParser {
return defaultFencedCodeBlockParser
}
type fenceData struct {
char byte
indent int
length int
node ast.Node
}
var fencedCodeBlockInfoKey = NewContextKey()
func (b *fencedCodeBlockParser) Trigger() []byte {
return []byte{'~', '`'}
}
func (b *fencedCodeBlockParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
line, segment := reader.PeekLine()
pos := pc.BlockOffset()
if pos < 0 || (line[pos] != '`' && line[pos] != '~') {
return nil, NoChildren
}
findent := pos
fenceChar := line[pos]
i := pos
for ; i < len(line) && line[i] == fenceChar; i++ {
}
oFenceLength := i - pos
if oFenceLength < 3 {
return nil, NoChildren
}
var info *ast.Text
if i < len(line)-1 {
rest := line[i:]
left := util.TrimLeftSpaceLength(rest)
right := util.TrimRightSpaceLength(rest)
if left < len(rest)-right {
infoStart, infoStop := segment.Start-segment.Padding+i+left, segment.Stop-right
value := rest[left : len(rest)-right]
if fenceChar == '`' && bytes.IndexByte(value, '`') > -1 {
return nil, NoChildren
} else if infoStart != infoStop {
info = ast.NewTextSegment(text.NewSegment(infoStart, infoStop))
}
}
}
node := ast.NewFencedCodeBlock(info)
pc.Set(fencedCodeBlockInfoKey, &fenceData{fenceChar, findent, oFenceLength, node})
return node, NoChildren
}
func (b *fencedCodeBlockParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
line, segment := reader.PeekLine()
fdata := pc.Get(fencedCodeBlockInfoKey).(*fenceData)
w, pos := util.IndentWidth(line, reader.LineOffset())
if w < 4 {
i := pos
for ; i < len(line) && line[i] == fdata.char; i++ {
}
length := i - pos
if length >= fdata.length && util.IsBlank(line[i:]) {
newline := 1
if line[len(line)-1] != '\n' {
newline = 0
}
reader.Advance(segment.Stop - segment.Start - newline + segment.Padding)
return Close
}
}
pos, padding := util.IndentPositionPadding(line, reader.LineOffset(), segment.Padding, fdata.indent)
if pos < 0 {
pos = util.FirstNonSpacePosition(line)
if pos < 0 {
pos = 0
}
padding = 0
}
seg := text.NewSegmentPadding(segment.Start+pos, segment.Stop, padding)
// if code block line starts with a tab, keep a tab as it is.
if padding != 0 {
preserveLeadingTabInCodeBlock(&seg, reader, fdata.indent)
}
node.Lines().Append(seg)
reader.AdvanceAndSetPadding(segment.Stop-segment.Start-pos-1, padding)
return Continue | NoChildren
}
func (b *fencedCodeBlockParser) Close(node ast.Node, reader text.Reader, pc Context) {
fdata := pc.Get(fencedCodeBlockInfoKey).(*fenceData)
if fdata.node == node {
pc.Set(fencedCodeBlockInfoKey, nil)
}
}
func (b *fencedCodeBlockParser) CanInterruptParagraph() bool {
return true
}
func (b *fencedCodeBlockParser) CanAcceptIndentedLine() bool {
return false
}

View file

@ -1,229 +0,0 @@
package parser
import (
"bytes"
"regexp"
"strings"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var allowedBlockTags = map[string]bool{
"address": true,
"article": true,
"aside": true,
"base": true,
"basefont": true,
"blockquote": true,
"body": true,
"caption": true,
"center": true,
"col": true,
"colgroup": true,
"dd": true,
"details": true,
"dialog": true,
"dir": true,
"div": true,
"dl": true,
"dt": true,
"fieldset": true,
"figcaption": true,
"figure": true,
"footer": true,
"form": true,
"frame": true,
"frameset": true,
"h1": true,
"h2": true,
"h3": true,
"h4": true,
"h5": true,
"h6": true,
"head": true,
"header": true,
"hr": true,
"html": true,
"iframe": true,
"legend": true,
"li": true,
"link": true,
"main": true,
"menu": true,
"menuitem": true,
"meta": true,
"nav": true,
"noframes": true,
"ol": true,
"optgroup": true,
"option": true,
"p": true,
"param": true,
"search": true,
"section": true,
"summary": true,
"table": true,
"tbody": true,
"td": true,
"tfoot": true,
"th": true,
"thead": true,
"title": true,
"tr": true,
"track": true,
"ul": true,
}
var htmlBlockType1OpenRegexp = regexp.MustCompile(`(?i)^[ ]{0,3}<(script|pre|style|textarea)(?:\s.*|>.*|/>.*|)(?:\r\n|\n)?$`) //nolint:golint,lll
var htmlBlockType1CloseRegexp = regexp.MustCompile(`(?i)^.*</(?:script|pre|style|textarea)>.*`)
var htmlBlockType2OpenRegexp = regexp.MustCompile(`^[ ]{0,3}<!\-\-`)
var htmlBlockType2Close = []byte{'-', '-', '>'}
var htmlBlockType3OpenRegexp = regexp.MustCompile(`^[ ]{0,3}<\?`)
var htmlBlockType3Close = []byte{'?', '>'}
var htmlBlockType4OpenRegexp = regexp.MustCompile(`^[ ]{0,3}<![A-Z]+.*(?:\r\n|\n)?$`)
var htmlBlockType4Close = []byte{'>'}
var htmlBlockType5OpenRegexp = regexp.MustCompile(`^[ ]{0,3}<\!\[CDATA\[`)
var htmlBlockType5Close = []byte{']', ']', '>'}
var htmlBlockType6Regexp = regexp.MustCompile(`^[ ]{0,3}<(?:/[ ]*)?([a-zA-Z]+[a-zA-Z0-9\-]*)(?:[ ].*|>.*|/>.*|)(?:\r\n|\n)?$`) //nolint:golint,lll
var htmlBlockType7Regexp = regexp.MustCompile(`^[ ]{0,3}<(/[ ]*)?([a-zA-Z]+[a-zA-Z0-9\-]*)(` + attributePattern + `*)[ ]*(?:>|/>)[ ]*(?:\r\n|\n)?$`) //nolint:golint,lll
type htmlBlockParser struct {
}
var defaultHTMLBlockParser = &htmlBlockParser{}
// NewHTMLBlockParser return a new BlockParser that can parse html
// blocks.
func NewHTMLBlockParser() BlockParser {
return defaultHTMLBlockParser
}
func (b *htmlBlockParser) Trigger() []byte {
return []byte{'<'}
}
func (b *htmlBlockParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
var node *ast.HTMLBlock
line, segment := reader.PeekLine()
last := pc.LastOpenedBlock().Node
if pos := pc.BlockOffset(); pos < 0 || line[pos] != '<' {
return nil, NoChildren
}
if m := htmlBlockType1OpenRegexp.FindSubmatchIndex(line); m != nil {
node = ast.NewHTMLBlock(ast.HTMLBlockType1)
} else if htmlBlockType2OpenRegexp.Match(line) {
node = ast.NewHTMLBlock(ast.HTMLBlockType2)
} else if htmlBlockType3OpenRegexp.Match(line) {
node = ast.NewHTMLBlock(ast.HTMLBlockType3)
} else if htmlBlockType4OpenRegexp.Match(line) {
node = ast.NewHTMLBlock(ast.HTMLBlockType4)
} else if htmlBlockType5OpenRegexp.Match(line) {
node = ast.NewHTMLBlock(ast.HTMLBlockType5)
} else if match := htmlBlockType7Regexp.FindSubmatchIndex(line); match != nil {
isCloseTag := match[2] > -1 && bytes.Equal(line[match[2]:match[3]], []byte("/"))
hasAttr := match[6] != match[7]
tagName := strings.ToLower(string(line[match[4]:match[5]]))
_, ok := allowedBlockTags[tagName]
if ok {
node = ast.NewHTMLBlock(ast.HTMLBlockType6)
} else if tagName != "script" && tagName != "style" &&
tagName != "pre" && !ast.IsParagraph(last) && !(isCloseTag && hasAttr) { // type 7 can not interrupt paragraph
node = ast.NewHTMLBlock(ast.HTMLBlockType7)
}
}
if node == nil {
if match := htmlBlockType6Regexp.FindSubmatchIndex(line); match != nil {
tagName := string(line[match[2]:match[3]])
_, ok := allowedBlockTags[strings.ToLower(tagName)]
if ok {
node = ast.NewHTMLBlock(ast.HTMLBlockType6)
}
}
}
if node != nil {
reader.Advance(segment.Len() - util.TrimRightSpaceLength(line))
node.Lines().Append(segment)
return node, NoChildren
}
return nil, NoChildren
}
func (b *htmlBlockParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
htmlBlock := node.(*ast.HTMLBlock)
lines := htmlBlock.Lines()
line, segment := reader.PeekLine()
var closurePattern []byte
switch htmlBlock.HTMLBlockType {
case ast.HTMLBlockType1:
if lines.Len() == 1 {
firstLine := lines.At(0)
if htmlBlockType1CloseRegexp.Match(firstLine.Value(reader.Source())) {
return Close
}
}
if htmlBlockType1CloseRegexp.Match(line) {
htmlBlock.ClosureLine = segment
reader.Advance(segment.Len() - util.TrimRightSpaceLength(line))
return Close
}
case ast.HTMLBlockType2:
closurePattern = htmlBlockType2Close
fallthrough
case ast.HTMLBlockType3:
if closurePattern == nil {
closurePattern = htmlBlockType3Close
}
fallthrough
case ast.HTMLBlockType4:
if closurePattern == nil {
closurePattern = htmlBlockType4Close
}
fallthrough
case ast.HTMLBlockType5:
if closurePattern == nil {
closurePattern = htmlBlockType5Close
}
if lines.Len() == 1 {
firstLine := lines.At(0)
if bytes.Contains(firstLine.Value(reader.Source()), closurePattern) {
return Close
}
}
if bytes.Contains(line, closurePattern) {
htmlBlock.ClosureLine = segment
reader.Advance(segment.Len())
return Close
}
case ast.HTMLBlockType6, ast.HTMLBlockType7:
if util.IsBlank(line) {
return Close
}
}
node.Lines().Append(segment)
reader.Advance(segment.Len() - util.TrimRightSpaceLength(line))
return Continue | NoChildren
}
func (b *htmlBlockParser) Close(node ast.Node, reader text.Reader, pc Context) {
// nothing to do
}
func (b *htmlBlockParser) CanInterruptParagraph() bool {
return true
}
func (b *htmlBlockParser) CanAcceptIndentedLine() bool {
return false
}

View file

@ -1,410 +0,0 @@
package parser
import (
"fmt"
"strings"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var linkLabelStateKey = NewContextKey()
type linkLabelState struct {
ast.BaseInline
Segment text.Segment
IsImage bool
Prev *linkLabelState
Next *linkLabelState
First *linkLabelState
Last *linkLabelState
}
func newLinkLabelState(segment text.Segment, isImage bool) *linkLabelState {
return &linkLabelState{
Segment: segment,
IsImage: isImage,
}
}
func (s *linkLabelState) Text(source []byte) []byte {
return s.Segment.Value(source)
}
func (s *linkLabelState) Dump(source []byte, level int) {
fmt.Printf("%slinkLabelState: \"%s\"\n", strings.Repeat(" ", level), s.Text(source))
}
var kindLinkLabelState = ast.NewNodeKind("LinkLabelState")
func (s *linkLabelState) Kind() ast.NodeKind {
return kindLinkLabelState
}
func linkLabelStateLength(v *linkLabelState) int {
if v == nil || v.Last == nil || v.First == nil {
return 0
}
return v.Last.Segment.Stop - v.First.Segment.Start
}
func pushLinkLabelState(pc Context, v *linkLabelState) {
tlist := pc.Get(linkLabelStateKey)
var list *linkLabelState
if tlist == nil {
list = v
v.First = v
v.Last = v
pc.Set(linkLabelStateKey, list)
} else {
list = tlist.(*linkLabelState)
l := list.Last
list.Last = v
l.Next = v
v.Prev = l
}
}
func removeLinkLabelState(pc Context, d *linkLabelState) {
tlist := pc.Get(linkLabelStateKey)
var list *linkLabelState
if tlist == nil {
return
}
list = tlist.(*linkLabelState)
if d.Prev == nil {
list = d.Next
if list != nil {
list.First = d
list.Last = d.Last
list.Prev = nil
pc.Set(linkLabelStateKey, list)
} else {
pc.Set(linkLabelStateKey, nil)
}
} else {
d.Prev.Next = d.Next
if d.Next != nil {
d.Next.Prev = d.Prev
}
}
if list != nil && d.Next == nil {
list.Last = d.Prev
}
d.Next = nil
d.Prev = nil
d.First = nil
d.Last = nil
}
type linkParser struct {
}
var defaultLinkParser = &linkParser{}
// NewLinkParser return a new InlineParser that parses links.
func NewLinkParser() InlineParser {
return defaultLinkParser
}
func (s *linkParser) Trigger() []byte {
return []byte{'!', '[', ']'}
}
var linkBottom = NewContextKey()
func (s *linkParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
line, segment := block.PeekLine()
if line[0] == '!' {
if len(line) > 1 && line[1] == '[' {
block.Advance(1)
pc.Set(linkBottom, pc.LastDelimiter())
return processLinkLabelOpen(block, segment.Start+1, true, pc)
}
return nil
}
if line[0] == '[' {
pc.Set(linkBottom, pc.LastDelimiter())
return processLinkLabelOpen(block, segment.Start, false, pc)
}
// line[0] == ']'
tlist := pc.Get(linkLabelStateKey)
if tlist == nil {
return nil
}
last := tlist.(*linkLabelState).Last
if last == nil {
return nil
}
block.Advance(1)
removeLinkLabelState(pc, last)
// CommonMark spec says:
// > A link label can have at most 999 characters inside the square brackets.
if linkLabelStateLength(tlist.(*linkLabelState)) > 998 {
ast.MergeOrReplaceTextSegment(last.Parent(), last, last.Segment)
return nil
}
if !last.IsImage && s.containsLink(last) { // a link in a link text is not allowed
ast.MergeOrReplaceTextSegment(last.Parent(), last, last.Segment)
return nil
}
c := block.Peek()
l, pos := block.Position()
var link *ast.Link
var hasValue bool
if c == '(' { // normal link
link = s.parseLink(parent, last, block, pc)
} else if c == '[' { // reference link
link, hasValue = s.parseReferenceLink(parent, last, block, pc)
if link == nil && hasValue {
ast.MergeOrReplaceTextSegment(last.Parent(), last, last.Segment)
return nil
}
}
if link == nil {
// maybe shortcut reference link
block.SetPosition(l, pos)
ssegment := text.NewSegment(last.Segment.Stop, segment.Start)
maybeReference := block.Value(ssegment)
// CommonMark spec says:
// > A link label can have at most 999 characters inside the square brackets.
if len(maybeReference) > 999 {
ast.MergeOrReplaceTextSegment(last.Parent(), last, last.Segment)
return nil
}
ref, ok := pc.Reference(util.ToLinkReference(maybeReference))
if !ok {
ast.MergeOrReplaceTextSegment(last.Parent(), last, last.Segment)
return nil
}
link = ast.NewLink()
s.processLinkLabel(parent, link, last, pc)
link.Title = ref.Title()
link.Destination = ref.Destination()
}
if last.IsImage {
last.Parent().RemoveChild(last.Parent(), last)
return ast.NewImage(link)
}
last.Parent().RemoveChild(last.Parent(), last)
return link
}
func (s *linkParser) containsLink(n ast.Node) bool {
if n == nil {
return false
}
for c := n; c != nil; c = c.NextSibling() {
if _, ok := c.(*ast.Link); ok {
return true
}
if s.containsLink(c.FirstChild()) {
return true
}
}
return false
}
func processLinkLabelOpen(block text.Reader, pos int, isImage bool, pc Context) *linkLabelState {
start := pos
if isImage {
start--
}
state := newLinkLabelState(text.NewSegment(start, pos+1), isImage)
pushLinkLabelState(pc, state)
block.Advance(1)
return state
}
func (s *linkParser) processLinkLabel(parent ast.Node, link *ast.Link, last *linkLabelState, pc Context) {
var bottom ast.Node
if v := pc.Get(linkBottom); v != nil {
bottom = v.(ast.Node)
}
pc.Set(linkBottom, nil)
ProcessDelimiters(bottom, pc)
for c := last.NextSibling(); c != nil; {
next := c.NextSibling()
parent.RemoveChild(parent, c)
link.AppendChild(link, c)
c = next
}
}
var linkFindClosureOptions text.FindClosureOptions = text.FindClosureOptions{
Nesting: false,
Newline: true,
Advance: true,
}
func (s *linkParser) parseReferenceLink(parent ast.Node, last *linkLabelState,
block text.Reader, pc Context) (*ast.Link, bool) {
_, orgpos := block.Position()
block.Advance(1) // skip '['
segments, found := block.FindClosure('[', ']', linkFindClosureOptions)
if !found {
return nil, false
}
var maybeReference []byte
if segments.Len() == 1 { // avoid allocate a new byte slice
maybeReference = block.Value(segments.At(0))
} else {
maybeReference = []byte{}
for i := 0; i < segments.Len(); i++ {
s := segments.At(i)
maybeReference = append(maybeReference, block.Value(s)...)
}
}
if util.IsBlank(maybeReference) { // collapsed reference link
s := text.NewSegment(last.Segment.Stop, orgpos.Start-1)
maybeReference = block.Value(s)
}
// CommonMark spec says:
// > A link label can have at most 999 characters inside the square brackets.
if len(maybeReference) > 999 {
return nil, true
}
ref, ok := pc.Reference(util.ToLinkReference(maybeReference))
if !ok {
return nil, true
}
link := ast.NewLink()
s.processLinkLabel(parent, link, last, pc)
link.Title = ref.Title()
link.Destination = ref.Destination()
return link, true
}
func (s *linkParser) parseLink(parent ast.Node, last *linkLabelState, block text.Reader, pc Context) *ast.Link {
block.Advance(1) // skip '('
block.SkipSpaces()
var title []byte
var destination []byte
var ok bool
if block.Peek() == ')' { // empty link like '[link]()'
block.Advance(1)
} else {
destination, ok = parseLinkDestination(block)
if !ok {
return nil
}
block.SkipSpaces()
if block.Peek() == ')' {
block.Advance(1)
} else {
title, ok = parseLinkTitle(block)
if !ok {
return nil
}
block.SkipSpaces()
if block.Peek() == ')' {
block.Advance(1)
} else {
return nil
}
}
}
link := ast.NewLink()
s.processLinkLabel(parent, link, last, pc)
link.Destination = destination
link.Title = title
return link
}
func parseLinkDestination(block text.Reader) ([]byte, bool) {
block.SkipSpaces()
line, _ := block.PeekLine()
if block.Peek() == '<' {
i := 1
for i < len(line) {
c := line[i]
if c == '\\' && i < len(line)-1 && util.IsPunct(line[i+1]) {
i += 2
continue
} else if c == '>' {
block.Advance(i + 1)
return line[1:i], true
}
i++
}
return nil, false
}
opened := 0
i := 0
for i < len(line) {
c := line[i]
if c == '\\' && i < len(line)-1 && util.IsPunct(line[i+1]) {
i += 2
continue
} else if c == '(' {
opened++
} else if c == ')' {
opened--
if opened < 0 {
break
}
} else if util.IsSpace(c) {
break
}
i++
}
block.Advance(i)
return line[:i], len(line[:i]) != 0
}
func parseLinkTitle(block text.Reader) ([]byte, bool) {
block.SkipSpaces()
opener := block.Peek()
if opener != '"' && opener != '\'' && opener != '(' {
return nil, false
}
closer := opener
if opener == '(' {
closer = ')'
}
block.Advance(1)
segments, found := block.FindClosure(opener, closer, linkFindClosureOptions)
if found {
if segments.Len() == 1 {
return block.Value(segments.At(0)), true
}
var title []byte
for i := 0; i < segments.Len(); i++ {
s := segments.At(i)
title = append(title, block.Value(s)...)
}
return title, true
}
return nil, false
}
func (s *linkParser) CloseBlock(parent ast.Node, block text.Reader, pc Context) {
pc.Set(linkBottom, nil)
tlist := pc.Get(linkLabelStateKey)
if tlist == nil {
return
}
for s := tlist.(*linkLabelState); s != nil; {
next := s.Next
removeLinkLabelState(pc, s)
s.Parent().ReplaceChild(s.Parent(), s, ast.NewTextSegment(s.Segment))
s = next
}
}

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package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type linkReferenceParagraphTransformer struct {
}
// LinkReferenceParagraphTransformer is a ParagraphTransformer implementation
// that parses and extracts link reference from paragraphs.
var LinkReferenceParagraphTransformer = &linkReferenceParagraphTransformer{}
func (p *linkReferenceParagraphTransformer) Transform(node *ast.Paragraph, reader text.Reader, pc Context) {
lines := node.Lines()
block := text.NewBlockReader(reader.Source(), lines)
removes := [][2]int{}
for {
start, end := parseLinkReferenceDefinition(block, pc)
if start > -1 {
if start == end {
end++
}
removes = append(removes, [2]int{start, end})
continue
}
break
}
offset := 0
for _, remove := range removes {
if lines.Len() == 0 {
break
}
s := lines.Sliced(remove[1]-offset, lines.Len())
lines.SetSliced(0, remove[0]-offset)
lines.AppendAll(s)
offset = remove[1]
}
if lines.Len() == 0 {
t := ast.NewTextBlock()
t.SetBlankPreviousLines(node.HasBlankPreviousLines())
node.Parent().ReplaceChild(node.Parent(), node, t)
return
}
node.SetLines(lines)
}
func parseLinkReferenceDefinition(block text.Reader, pc Context) (int, int) {
block.SkipSpaces()
line, _ := block.PeekLine()
if line == nil {
return -1, -1
}
startLine, _ := block.Position()
width, pos := util.IndentWidth(line, 0)
if width > 3 {
return -1, -1
}
if width != 0 {
pos++
}
if line[pos] != '[' {
return -1, -1
}
block.Advance(pos + 1)
segments, found := block.FindClosure('[', ']', linkFindClosureOptions)
if !found {
return -1, -1
}
var label []byte
if segments.Len() == 1 {
label = block.Value(segments.At(0))
} else {
for i := 0; i < segments.Len(); i++ {
s := segments.At(i)
label = append(label, block.Value(s)...)
}
}
if util.IsBlank(label) {
return -1, -1
}
if block.Peek() != ':' {
return -1, -1
}
block.Advance(1)
block.SkipSpaces()
destination, ok := parseLinkDestination(block)
if !ok {
return -1, -1
}
line, _ = block.PeekLine()
isNewLine := line == nil || util.IsBlank(line)
endLine, _ := block.Position()
_, spaces, _ := block.SkipSpaces()
opener := block.Peek()
if opener != '"' && opener != '\'' && opener != '(' {
if !isNewLine {
return -1, -1
}
ref := NewReference(label, destination, nil)
pc.AddReference(ref)
return startLine, endLine + 1
}
if spaces == 0 {
return -1, -1
}
block.Advance(1)
closer := opener
if opener == '(' {
closer = ')'
}
segments, found = block.FindClosure(opener, closer, linkFindClosureOptions)
if !found {
if !isNewLine {
return -1, -1
}
ref := NewReference(label, destination, nil)
pc.AddReference(ref)
block.AdvanceLine()
return startLine, endLine + 1
}
var title []byte
if segments.Len() == 1 {
title = block.Value(segments.At(0))
} else {
for i := 0; i < segments.Len(); i++ {
s := segments.At(i)
title = append(title, block.Value(s)...)
}
}
line, _ = block.PeekLine()
if line != nil && !util.IsBlank(line) {
if !isNewLine {
return -1, -1
}
ref := NewReference(label, destination, title)
pc.AddReference(ref)
return startLine, endLine
}
endLine, _ = block.Position()
ref := NewReference(label, destination, title)
pc.AddReference(ref)
return startLine, endLine + 1
}

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@ -1,287 +0,0 @@
package parser
import (
"strconv"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type listItemType int
const (
notList listItemType = iota
bulletList
orderedList
)
var skipListParserKey = NewContextKey()
var emptyListItemWithBlankLines = NewContextKey()
var listItemFlagValue interface{} = true
// Same as
// `^(([ ]*)([\-\*\+]))(\s+.*)?\n?$`.FindSubmatchIndex or
// `^(([ ]*)(\d{1,9}[\.\)]))(\s+.*)?\n?$`.FindSubmatchIndex.
func parseListItem(line []byte) ([6]int, listItemType) {
i := 0
l := len(line)
ret := [6]int{}
for ; i < l && line[i] == ' '; i++ {
c := line[i]
if c == '\t' {
return ret, notList
}
}
if i > 3 {
return ret, notList
}
ret[0] = 0
ret[1] = i
ret[2] = i
var typ listItemType
if i < l && (line[i] == '-' || line[i] == '*' || line[i] == '+') {
i++
ret[3] = i
typ = bulletList
} else if i < l {
for ; i < l && util.IsNumeric(line[i]); i++ {
}
ret[3] = i
if ret[3] == ret[2] || ret[3]-ret[2] > 9 {
return ret, notList
}
if i < l && (line[i] == '.' || line[i] == ')') {
i++
ret[3] = i
} else {
return ret, notList
}
typ = orderedList
} else {
return ret, notList
}
if i < l && line[i] != '\n' {
w, _ := util.IndentWidth(line[i:], 0)
if w == 0 {
return ret, notList
}
}
if i >= l {
ret[4] = -1
ret[5] = -1
return ret, typ
}
ret[4] = i
ret[5] = len(line)
if line[ret[5]-1] == '\n' && line[i] != '\n' {
ret[5]--
}
return ret, typ
}
func matchesListItem(source []byte, strict bool) ([6]int, listItemType) {
m, typ := parseListItem(source)
if typ != notList && (!strict || strict && m[1] < 4) {
return m, typ
}
return m, notList
}
func calcListOffset(source []byte, match [6]int) int {
var offset int
if match[4] < 0 || util.IsBlank(source[match[4]:]) { // list item starts with a blank line
offset = 1
} else {
offset, _ = util.IndentWidth(source[match[4]:], match[4])
if offset > 4 { // offseted codeblock
offset = 1
}
}
return offset
}
func lastOffset(node ast.Node) int {
lastChild := node.LastChild()
if lastChild != nil {
return lastChild.(*ast.ListItem).Offset
}
return 0
}
type listParser struct {
}
var defaultListParser = &listParser{}
// NewListParser returns a new BlockParser that
// parses lists.
// This parser must take precedence over the ListItemParser.
func NewListParser() BlockParser {
return defaultListParser
}
func (b *listParser) Trigger() []byte {
return []byte{'-', '+', '*', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}
}
func (b *listParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
last := pc.LastOpenedBlock().Node
if _, lok := last.(*ast.List); lok || pc.Get(skipListParserKey) != nil {
pc.Set(skipListParserKey, nil)
return nil, NoChildren
}
line, _ := reader.PeekLine()
match, typ := matchesListItem(line, true)
if typ == notList {
return nil, NoChildren
}
start := -1
if typ == orderedList {
number := line[match[2] : match[3]-1]
start, _ = strconv.Atoi(string(number))
}
if ast.IsParagraph(last) && last.Parent() == parent {
// we allow only lists starting with 1 to interrupt paragraphs.
if typ == orderedList && start != 1 {
return nil, NoChildren
}
//an empty list item cannot interrupt a paragraph:
if match[4] < 0 || util.IsBlank(line[match[4]:match[5]]) {
return nil, NoChildren
}
}
marker := line[match[3]-1]
node := ast.NewList(marker)
if start > -1 {
node.Start = start
}
pc.Set(emptyListItemWithBlankLines, nil)
return node, HasChildren
}
func (b *listParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
list := node.(*ast.List)
line, _ := reader.PeekLine()
if util.IsBlank(line) {
if node.LastChild().ChildCount() == 0 {
pc.Set(emptyListItemWithBlankLines, listItemFlagValue)
}
return Continue | HasChildren
}
// "offset" means a width that bar indicates.
// - aaaaaaaa
// |----|
//
// If the indent is less than the last offset like
// - a
// - b <--- current line
// it maybe a new child of the list.
//
// Empty list items can have multiple blanklines
//
// - <--- 1st item is an empty thus "offset" is unknown
//
//
// - <--- current line
//
// -> 1 list with 2 blank items
//
// So if the last item is an empty, it maybe a new child of the list.
//
offset := lastOffset(node)
lastIsEmpty := node.LastChild().ChildCount() == 0
indent, _ := util.IndentWidth(line, reader.LineOffset())
if indent < offset || lastIsEmpty {
if indent < 4 {
match, typ := matchesListItem(line, false) // may have a leading spaces more than 3
if typ != notList && match[1]-offset < 4 {
marker := line[match[3]-1]
if !list.CanContinue(marker, typ == orderedList) {
return Close
}
// Thematic Breaks take precedence over lists
if isThematicBreak(line[match[3]-1:], 0) {
isHeading := false
last := pc.LastOpenedBlock().Node
if ast.IsParagraph(last) {
c, ok := matchesSetextHeadingBar(line[match[3]-1:])
if ok && c == '-' {
isHeading = true
}
}
if !isHeading {
return Close
}
}
return Continue | HasChildren
}
}
if !lastIsEmpty {
return Close
}
}
if lastIsEmpty && indent < offset {
return Close
}
// Non empty items can not exist next to an empty list item
// with blank lines. So we need to close the current list
//
// -
//
// foo
//
// -> 1 list with 1 blank items and 1 paragraph
if pc.Get(emptyListItemWithBlankLines) != nil {
return Close
}
return Continue | HasChildren
}
func (b *listParser) Close(node ast.Node, reader text.Reader, pc Context) {
list := node.(*ast.List)
for c := node.FirstChild(); c != nil && list.IsTight; c = c.NextSibling() {
if c.FirstChild() != nil && c.FirstChild() != c.LastChild() {
for c1 := c.FirstChild().NextSibling(); c1 != nil; c1 = c1.NextSibling() {
if c1.HasBlankPreviousLines() {
list.IsTight = false
break
}
}
}
if c != node.FirstChild() {
if c.HasBlankPreviousLines() {
list.IsTight = false
}
}
}
if list.IsTight {
for child := node.FirstChild(); child != nil; child = child.NextSibling() {
for gc := child.FirstChild(); gc != nil; {
paragraph, ok := gc.(*ast.Paragraph)
gc = gc.NextSibling()
if ok {
textBlock := ast.NewTextBlock()
textBlock.SetLines(paragraph.Lines())
child.ReplaceChild(child, paragraph, textBlock)
}
}
}
}
}
func (b *listParser) CanInterruptParagraph() bool {
return true
}
func (b *listParser) CanAcceptIndentedLine() bool {
return false
}

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@ -1,90 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type listItemParser struct {
}
var defaultListItemParser = &listItemParser{}
// NewListItemParser returns a new BlockParser that
// parses list items.
func NewListItemParser() BlockParser {
return defaultListItemParser
}
func (b *listItemParser) Trigger() []byte {
return []byte{'-', '+', '*', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}
}
func (b *listItemParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
list, lok := parent.(*ast.List)
if !lok { // list item must be a child of a list
return nil, NoChildren
}
offset := lastOffset(list)
line, _ := reader.PeekLine()
match, typ := matchesListItem(line, false)
if typ == notList {
return nil, NoChildren
}
if match[1]-offset > 3 {
return nil, NoChildren
}
pc.Set(emptyListItemWithBlankLines, nil)
itemOffset := calcListOffset(line, match)
node := ast.NewListItem(match[3] + itemOffset)
if match[4] < 0 || util.IsBlank(line[match[4]:match[5]]) {
return node, NoChildren
}
pos, padding := util.IndentPosition(line[match[4]:], match[4], itemOffset)
child := match[3] + pos
reader.AdvanceAndSetPadding(child, padding)
return node, HasChildren
}
func (b *listItemParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
line, _ := reader.PeekLine()
if util.IsBlank(line) {
reader.Advance(len(line) - 1)
return Continue | HasChildren
}
offset := lastOffset(node.Parent())
isEmpty := node.ChildCount() == 0
indent, _ := util.IndentWidth(line, reader.LineOffset())
if (isEmpty || indent < offset) && indent < 4 {
_, typ := matchesListItem(line, true)
// new list item found
if typ != notList {
pc.Set(skipListParserKey, listItemFlagValue)
return Close
}
if !isEmpty {
return Close
}
}
pos, padding := util.IndentPosition(line, reader.LineOffset(), offset)
reader.AdvanceAndSetPadding(pos, padding)
return Continue | HasChildren
}
func (b *listItemParser) Close(node ast.Node, reader text.Reader, pc Context) {
// nothing to do
}
func (b *listItemParser) CanInterruptParagraph() bool {
return true
}
func (b *listItemParser) CanAcceptIndentedLine() bool {
return false
}

View file

@ -1,72 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type paragraphParser struct {
}
var defaultParagraphParser = &paragraphParser{}
// NewParagraphParser returns a new BlockParser that
// parses paragraphs.
func NewParagraphParser() BlockParser {
return defaultParagraphParser
}
func (b *paragraphParser) Trigger() []byte {
return nil
}
func (b *paragraphParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
_, segment := reader.PeekLine()
segment = segment.TrimLeftSpace(reader.Source())
if segment.IsEmpty() {
return nil, NoChildren
}
node := ast.NewParagraph()
node.Lines().Append(segment)
reader.Advance(segment.Len() - 1)
return node, NoChildren
}
func (b *paragraphParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
line, segment := reader.PeekLine()
if util.IsBlank(line) {
return Close
}
node.Lines().Append(segment)
reader.Advance(segment.Len() - 1)
return Continue | NoChildren
}
func (b *paragraphParser) Close(node ast.Node, reader text.Reader, pc Context) {
lines := node.Lines()
if lines.Len() != 0 {
// trim leading spaces
for i := 0; i < lines.Len(); i++ {
l := lines.At(i)
lines.Set(i, l.TrimLeftSpace(reader.Source()))
}
// trim trailing spaces
length := lines.Len()
lastLine := node.Lines().At(length - 1)
node.Lines().Set(length-1, lastLine.TrimRightSpace(reader.Source()))
}
if lines.Len() == 0 {
node.Parent().RemoveChild(node.Parent(), node)
return
}
}
func (b *paragraphParser) CanInterruptParagraph() bool {
return false
}
func (b *paragraphParser) CanAcceptIndentedLine() bool {
return false
}

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@ -1,153 +0,0 @@
package parser
import (
"bytes"
"regexp"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type rawHTMLParser struct {
}
var defaultRawHTMLParser = &rawHTMLParser{}
// NewRawHTMLParser return a new InlineParser that can parse
// inline htmls.
func NewRawHTMLParser() InlineParser {
return defaultRawHTMLParser
}
func (s *rawHTMLParser) Trigger() []byte {
return []byte{'<'}
}
func (s *rawHTMLParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
line, _ := block.PeekLine()
if len(line) > 1 && util.IsAlphaNumeric(line[1]) {
return s.parseMultiLineRegexp(openTagRegexp, block, pc)
}
if len(line) > 2 && line[1] == '/' && util.IsAlphaNumeric(line[2]) {
return s.parseMultiLineRegexp(closeTagRegexp, block, pc)
}
if bytes.HasPrefix(line, openComment) {
return s.parseComment(block, pc)
}
if bytes.HasPrefix(line, openProcessingInstruction) {
return s.parseUntil(block, closeProcessingInstruction, pc)
}
if len(line) > 2 && line[1] == '!' && line[2] >= 'A' && line[2] <= 'Z' {
return s.parseUntil(block, closeDecl, pc)
}
if bytes.HasPrefix(line, openCDATA) {
return s.parseUntil(block, closeCDATA, pc)
}
return nil
}
var tagnamePattern = `([A-Za-z][A-Za-z0-9-]*)`
var spaceOrOneNewline = `(?:[ \t]|(?:\r\n|\n){0,1})`
var attributePattern = `(?:[\r\n \t]+[a-zA-Z_:][a-zA-Z0-9:._-]*(?:[\r\n \t]*=[\r\n \t]*(?:[^\"'=<>` + "`" + `\x00-\x20]+|'[^']*'|"[^"]*"))?)` //nolint:golint,lll
var openTagRegexp = regexp.MustCompile("^<" + tagnamePattern + attributePattern + `*` + spaceOrOneNewline + `*/?>`)
var closeTagRegexp = regexp.MustCompile("^</" + tagnamePattern + spaceOrOneNewline + `*>`)
var openProcessingInstruction = []byte("<?")
var closeProcessingInstruction = []byte("?>")
var openCDATA = []byte("<![CDATA[")
var closeCDATA = []byte("]]>")
var closeDecl = []byte(">")
var emptyComment1 = []byte("<!-->")
var emptyComment2 = []byte("<!--->")
var openComment = []byte("<!--")
var closeComment = []byte("-->")
func (s *rawHTMLParser) parseComment(block text.Reader, pc Context) ast.Node {
savedLine, savedSegment := block.Position()
node := ast.NewRawHTML()
line, segment := block.PeekLine()
if bytes.HasPrefix(line, emptyComment1) {
node.Segments.Append(segment.WithStop(segment.Start + len(emptyComment1)))
block.Advance(len(emptyComment1))
return node
}
if bytes.HasPrefix(line, emptyComment2) {
node.Segments.Append(segment.WithStop(segment.Start + len(emptyComment2)))
block.Advance(len(emptyComment2))
return node
}
offset := len(openComment)
line = line[offset:]
for {
index := bytes.Index(line, closeComment)
if index > -1 {
node.Segments.Append(segment.WithStop(segment.Start + offset + index + len(closeComment)))
block.Advance(offset + index + len(closeComment))
return node
}
offset = 0
node.Segments.Append(segment)
block.AdvanceLine()
line, segment = block.PeekLine()
if line == nil {
break
}
}
block.SetPosition(savedLine, savedSegment)
return nil
}
func (s *rawHTMLParser) parseUntil(block text.Reader, closer []byte, pc Context) ast.Node {
savedLine, savedSegment := block.Position()
node := ast.NewRawHTML()
for {
line, segment := block.PeekLine()
if line == nil {
break
}
index := bytes.Index(line, closer)
if index > -1 {
node.Segments.Append(segment.WithStop(segment.Start + index + len(closer)))
block.Advance(index + len(closer))
return node
}
node.Segments.Append(segment)
block.AdvanceLine()
}
block.SetPosition(savedLine, savedSegment)
return nil
}
func (s *rawHTMLParser) parseMultiLineRegexp(reg *regexp.Regexp, block text.Reader, pc Context) ast.Node {
sline, ssegment := block.Position()
if block.Match(reg) {
node := ast.NewRawHTML()
eline, esegment := block.Position()
block.SetPosition(sline, ssegment)
for {
line, segment := block.PeekLine()
if line == nil {
break
}
l, _ := block.Position()
start := segment.Start
if l == sline {
start = ssegment.Start
}
end := segment.Stop
if l == eline {
end = esegment.Start
}
node.Segments.Append(text.NewSegment(start, end))
if l == eline {
block.Advance(end - start)
break
}
block.AdvanceLine()
}
return node
}
return nil
}

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@ -1,126 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
var temporaryParagraphKey = NewContextKey()
type setextHeadingParser struct {
HeadingConfig
}
func matchesSetextHeadingBar(line []byte) (byte, bool) {
start := 0
end := len(line)
space := util.TrimLeftLength(line, []byte{' '})
if space > 3 {
return 0, false
}
start += space
level1 := util.TrimLeftLength(line[start:end], []byte{'='})
c := byte('=')
var level2 int
if level1 == 0 {
level2 = util.TrimLeftLength(line[start:end], []byte{'-'})
c = '-'
}
if util.IsSpace(line[end-1]) {
end -= util.TrimRightSpaceLength(line[start:end])
}
if !((level1 > 0 && start+level1 == end) || (level2 > 0 && start+level2 == end)) {
return 0, false
}
return c, true
}
// NewSetextHeadingParser return a new BlockParser that can parse Setext headings.
func NewSetextHeadingParser(opts ...HeadingOption) BlockParser {
p := &setextHeadingParser{}
for _, o := range opts {
o.SetHeadingOption(&p.HeadingConfig)
}
return p
}
func (b *setextHeadingParser) Trigger() []byte {
return []byte{'-', '='}
}
func (b *setextHeadingParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
last := pc.LastOpenedBlock().Node
if last == nil {
return nil, NoChildren
}
paragraph, ok := last.(*ast.Paragraph)
if !ok || paragraph.Parent() != parent {
return nil, NoChildren
}
line, segment := reader.PeekLine()
c, ok := matchesSetextHeadingBar(line)
if !ok {
return nil, NoChildren
}
level := 1
if c == '-' {
level = 2
}
node := ast.NewHeading(level)
node.Lines().Append(segment)
pc.Set(temporaryParagraphKey, last)
return node, NoChildren | RequireParagraph
}
func (b *setextHeadingParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
return Close
}
func (b *setextHeadingParser) Close(node ast.Node, reader text.Reader, pc Context) {
heading := node.(*ast.Heading)
segment := node.Lines().At(0)
heading.Lines().Clear()
tmp := pc.Get(temporaryParagraphKey).(*ast.Paragraph)
pc.Set(temporaryParagraphKey, nil)
if tmp.Lines().Len() == 0 {
next := heading.NextSibling()
segment = segment.TrimLeftSpace(reader.Source())
if next == nil || !ast.IsParagraph(next) {
para := ast.NewParagraph()
para.Lines().Append(segment)
heading.Parent().InsertAfter(heading.Parent(), heading, para)
} else {
next.Lines().Unshift(segment)
}
heading.Parent().RemoveChild(heading.Parent(), heading)
} else {
heading.SetLines(tmp.Lines())
heading.SetBlankPreviousLines(tmp.HasBlankPreviousLines())
tp := tmp.Parent()
if tp != nil {
tp.RemoveChild(tp, tmp)
}
}
if b.Attribute {
parseLastLineAttributes(node, reader, pc)
}
if b.AutoHeadingID {
id, ok := node.AttributeString("id")
if !ok {
generateAutoHeadingID(heading, reader, pc)
} else {
pc.IDs().Put(id.([]byte))
}
}
}
func (b *setextHeadingParser) CanInterruptParagraph() bool {
return true
}
func (b *setextHeadingParser) CanAcceptIndentedLine() bool {
return false
}

View file

@ -1,75 +0,0 @@
package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
"github.com/yuin/goldmark/util"
)
type thematicBreakPraser struct {
}
var defaultThematicBreakPraser = &thematicBreakPraser{}
// NewThematicBreakParser returns a new BlockParser that
// parses thematic breaks.
func NewThematicBreakParser() BlockParser {
return defaultThematicBreakPraser
}
func isThematicBreak(line []byte, offset int) bool {
w, pos := util.IndentWidth(line, offset)
if w > 3 {
return false
}
mark := byte(0)
count := 0
for i := pos; i < len(line); i++ {
c := line[i]
if util.IsSpace(c) {
continue
}
if mark == 0 {
mark = c
count = 1
if mark == '*' || mark == '-' || mark == '_' {
continue
}
return false
}
if c != mark {
return false
}
count++
}
return count > 2
}
func (b *thematicBreakPraser) Trigger() []byte {
return []byte{'-', '*', '_'}
}
func (b *thematicBreakPraser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
line, segment := reader.PeekLine()
if isThematicBreak(line, reader.LineOffset()) {
reader.Advance(segment.Len() - 1)
return ast.NewThematicBreak(), NoChildren
}
return nil, NoChildren
}
func (b *thematicBreakPraser) Continue(node ast.Node, reader text.Reader, pc Context) State {
return Close
}
func (b *thematicBreakPraser) Close(node ast.Node, reader text.Reader, pc Context) {
// nothing to do
}
func (b *thematicBreakPraser) CanInterruptParagraph() bool {
return true
}
func (b *thematicBreakPraser) CanAcceptIndentedLine() bool {
return false
}

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<html>
<head>
<meta charset="utf-8">
<title>goldmark playground</title>
<link rel="stylesheet" href="./playground.css">
<script src="./wasm_exec.js"></script>
<script>
const $ = (id) => document.getElementById(id);
const $$ = (q) => document.querySelector(q);
const goldmarkVersion = "v1.7.0";
const optionNames = [
"optTableExtension",
"optStrikethroughExtension",
"optLinkifyExtension",
"optTaskListExtension",
"optDefinitionListExtension",
"optFootnoteExtension",
"optTypographerExtension",
"optCJKExtension",
"optXHTML",
];
const getOptions = function() {
let options = 0;
for(const optionName of optionNames) {
if(document.getElementsByName(optionName)[0].checked) {
options |= window[optionName];
}
}
return options;
};
const setOptions = function(value) {
value = !value ? 0 : parseInt(value);
for(const optionName of optionNames) {
if((window[optionName] & value) === window[optionName]) {
document.getElementsByName(optionName)[0].checked = true;
}
}
};
const isMobile = function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))){ return true;}else{return false;}}(navigator.userAgent||navigator.vendor||window.opera);
const isSlowConn = function(){
let effectiveType = "";
try {
effectiveType = window.navigator.connection.effectiveType;
}catch{}
return effectiveType === "slow-2g" || effectiveType === "2g" || effectiveType === "3g";
}();
const convert = function() {
const inputElm = $('input');
const previewElm = $('preview');
const htmlElm= $$('#html pre');
const permelinkElm = $('permalink')
const options = getOptions();
const html = toHtml(inputElm.value, options);
previewElm.innerHTML = html;
htmlElm.innerText = html;
const u = new URL(location.href);
u.searchParams.delete("m");
u.searchParams.set("m", encodeURIComponent(inputElm.value));
u.searchParams.set("o", getOptions());
u.searchParams.set("v", encodeURIComponent(goldmarkVersion));
permelinkElm.href = u.href;
}
document.addEventListener('DOMContentLoaded', function() {
if(isMobile || isSlowConn) {
if(!confirm("This page uses WASM modules. Size is approximately 5-10MB. Are you sure to load?")) {
return;
}
}
const go = new Go();
const WASM_URL = './goldmark-playground.wasm';
var wasm;
const onload = function(obj) {
wasm = obj.instance;
go.run(wasm);
document.getElementById("convert-markdown").disabled = false;
const u = new URL(location.href);
if(u.searchParams.has("m")) {
setOptions(u.searchParams.get("o"));
$("input").value = decodeURIComponent(u.searchParams.get("m"));
convert();
}
};
if ('instantiateStreaming' in WebAssembly) {
WebAssembly.instantiateStreaming(fetch(WASM_URL), go.importObject).then(onload);
} else {
fetch(WASM_URL).then(resp =>
resp.arrayBuffer()
).then(bytes => WebAssembly.instantiate(bytes, go.importObject).then(onload));
}
});
</script>
</head>
<body>
<h1>goldmark@v1.7.0 playground</h1>
<div id="container">
<div id="markdown">
<div>
table:<input type="checkbox" name="optTableExtension"/ >&nbsp;
strikethrough:<input type="checkbox" name="optStrikethroughExtension"/ >&nbsp;
linkify:<input type="checkbox" name="optLinkifyExtension"/ >&nbsp;
taklist:<input type="checkbox" name="optTaskListExtension"/ >&nbsp;
definition list:<input type="checkbox" name="optDefinitionListExtension"/ >&nbsp;
footnote:<input type="checkbox" name="optFootnoteExtension"/ >&nbsp;
typographer:<input type="checkbox" name="optTypographerExtension"/ >&nbsp;
cjk:<input type="checkbox" name="optCJKExtension"/ >&nbsp;
XHTML:<input type="checkbox" name="optXHTML"/ >&nbsp;
</div>
<div>
<a id="permalink" href="">permalink</a>&nbsp;&nbsp;&nbsp;
<span id="clear" onclick="$('input').value='';return false;">clear</span>
</div>
<div>
<textarea id="input" placeholder="markdown" rows="20"></textarea>
</div>
<div>
<button onClick="convert();" id="convert-markdown" disabled>Convert</button>
</div>
</div>
<div id="output">
<div id="tab-wrapper">
<input id="preview-tab" type="radio" name="tab" class="tab-switch" checked="checked" /><label class="tab-label" for="preview-tab">Preview</label>
<input id="html-tab" type="radio" name="tab" class="tab-switch" /><label class="tab-label" for="html-tab">HTML</label>
<div id="tabs" class="tabs">
<div class="tab-content" id="preview">
</div>
<div class="tab-content" id="html">
<pre>
</pre>
</div>
</div>
</div>
</div>
</div>
</body>
</html>

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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
"use strict";
(() => {
const enosys = () => {
const err = new Error("not implemented");
err.code = "ENOSYS";
return err;
};
if (!globalThis.fs) {
let outputBuf = "";
globalThis.fs = {
constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused
writeSync(fd, buf) {
outputBuf += decoder.decode(buf);
const nl = outputBuf.lastIndexOf("\n");
if (nl != -1) {
console.log(outputBuf.substring(0, nl));
outputBuf = outputBuf.substring(nl + 1);
}
return buf.length;
},
write(fd, buf, offset, length, position, callback) {
if (offset !== 0 || length !== buf.length || position !== null) {
callback(enosys());
return;
}
const n = this.writeSync(fd, buf);
callback(null, n);
},
chmod(path, mode, callback) { callback(enosys()); },
chown(path, uid, gid, callback) { callback(enosys()); },
close(fd, callback) { callback(enosys()); },
fchmod(fd, mode, callback) { callback(enosys()); },
fchown(fd, uid, gid, callback) { callback(enosys()); },
fstat(fd, callback) { callback(enosys()); },
fsync(fd, callback) { callback(null); },
ftruncate(fd, length, callback) { callback(enosys()); },
lchown(path, uid, gid, callback) { callback(enosys()); },
link(path, link, callback) { callback(enosys()); },
lstat(path, callback) { callback(enosys()); },
mkdir(path, perm, callback) { callback(enosys()); },
open(path, flags, mode, callback) { callback(enosys()); },
read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
readdir(path, callback) { callback(enosys()); },
readlink(path, callback) { callback(enosys()); },
rename(from, to, callback) { callback(enosys()); },
rmdir(path, callback) { callback(enosys()); },
stat(path, callback) { callback(enosys()); },
symlink(path, link, callback) { callback(enosys()); },
truncate(path, length, callback) { callback(enosys()); },
unlink(path, callback) { callback(enosys()); },
utimes(path, atime, mtime, callback) { callback(enosys()); },
};
}
if (!globalThis.process) {
globalThis.process = {
getuid() { return -1; },
getgid() { return -1; },
geteuid() { return -1; },
getegid() { return -1; },
getgroups() { throw enosys(); },
pid: -1,
ppid: -1,
umask() { throw enosys(); },
cwd() { throw enosys(); },
chdir() { throw enosys(); },
}
}
if (!globalThis.crypto) {
throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)");
}
if (!globalThis.performance) {
throw new Error("globalThis.performance is not available, polyfill required (performance.now only)");
}
if (!globalThis.TextEncoder) {
throw new Error("globalThis.TextEncoder is not available, polyfill required");
}
if (!globalThis.TextDecoder) {
throw new Error("globalThis.TextDecoder is not available, polyfill required");
}
const encoder = new TextEncoder("utf-8");
const decoder = new TextDecoder("utf-8");
globalThis.Go = class {
constructor() {
this.argv = ["js"];
this.env = {};
this.exit = (code) => {
if (code !== 0) {
console.warn("exit code:", code);
}
};
this._exitPromise = new Promise((resolve) => {
this._resolveExitPromise = resolve;
});
this._pendingEvent = null;
this._scheduledTimeouts = new Map();
this._nextCallbackTimeoutID = 1;
const setInt64 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
}
const setInt32 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
}
const getInt64 = (addr) => {
const low = this.mem.getUint32(addr + 0, true);
const high = this.mem.getInt32(addr + 4, true);
return low + high * 4294967296;
}
const loadValue = (addr) => {
const f = this.mem.getFloat64(addr, true);
if (f === 0) {
return undefined;
}
if (!isNaN(f)) {
return f;
}
const id = this.mem.getUint32(addr, true);
return this._values[id];
}
const storeValue = (addr, v) => {
const nanHead = 0x7FF80000;
if (typeof v === "number" && v !== 0) {
if (isNaN(v)) {
this.mem.setUint32(addr + 4, nanHead, true);
this.mem.setUint32(addr, 0, true);
return;
}
this.mem.setFloat64(addr, v, true);
return;
}
if (v === undefined) {
this.mem.setFloat64(addr, 0, true);
return;
}
let id = this._ids.get(v);
if (id === undefined) {
id = this._idPool.pop();
if (id === undefined) {
id = this._values.length;
}
this._values[id] = v;
this._goRefCounts[id] = 0;
this._ids.set(v, id);
}
this._goRefCounts[id]++;
let typeFlag = 0;
switch (typeof v) {
case "object":
if (v !== null) {
typeFlag = 1;
}
break;
case "string":
typeFlag = 2;
break;
case "symbol":
typeFlag = 3;
break;
case "function":
typeFlag = 4;
break;
}
this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
this.mem.setUint32(addr, id, true);
}
const loadSlice = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
return new Uint8Array(this._inst.exports.mem.buffer, array, len);
}
const loadSliceOfValues = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
const a = new Array(len);
for (let i = 0; i < len; i++) {
a[i] = loadValue(array + i * 8);
}
return a;
}
const loadString = (addr) => {
const saddr = getInt64(addr + 0);
const len = getInt64(addr + 8);
return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
}
const timeOrigin = Date.now() - performance.now();
this.importObject = {
_gotest: {
add: (a, b) => a + b,
},
gojs: {
// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
// This changes the SP, thus we have to update the SP used by the imported function.
// func wasmExit(code int32)
"runtime.wasmExit": (sp) => {
sp >>>= 0;
const code = this.mem.getInt32(sp + 8, true);
this.exited = true;
delete this._inst;
delete this._values;
delete this._goRefCounts;
delete this._ids;
delete this._idPool;
this.exit(code);
},
// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
"runtime.wasmWrite": (sp) => {
sp >>>= 0;
const fd = getInt64(sp + 8);
const p = getInt64(sp + 16);
const n = this.mem.getInt32(sp + 24, true);
fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
},
// func resetMemoryDataView()
"runtime.resetMemoryDataView": (sp) => {
sp >>>= 0;
this.mem = new DataView(this._inst.exports.mem.buffer);
},
// func nanotime1() int64
"runtime.nanotime1": (sp) => {
sp >>>= 0;
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
},
// func walltime() (sec int64, nsec int32)
"runtime.walltime": (sp) => {
sp >>>= 0;
const msec = (new Date).getTime();
setInt64(sp + 8, msec / 1000);
this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
},
// func scheduleTimeoutEvent(delay int64) int32
"runtime.scheduleTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this._nextCallbackTimeoutID;
this._nextCallbackTimeoutID++;
this._scheduledTimeouts.set(id, setTimeout(
() => {
this._resume();
while (this._scheduledTimeouts.has(id)) {
// for some reason Go failed to register the timeout event, log and try again
// (temporary workaround for https://github.com/golang/go/issues/28975)
console.warn("scheduleTimeoutEvent: missed timeout event");
this._resume();
}
},
getInt64(sp + 8),
));
this.mem.setInt32(sp + 16, id, true);
},
// func clearTimeoutEvent(id int32)
"runtime.clearTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this.mem.getInt32(sp + 8, true);
clearTimeout(this._scheduledTimeouts.get(id));
this._scheduledTimeouts.delete(id);
},
// func getRandomData(r []byte)
"runtime.getRandomData": (sp) => {
sp >>>= 0;
crypto.getRandomValues(loadSlice(sp + 8));
},
// func finalizeRef(v ref)
"syscall/js.finalizeRef": (sp) => {
sp >>>= 0;
const id = this.mem.getUint32(sp + 8, true);
this._goRefCounts[id]--;
if (this._goRefCounts[id] === 0) {
const v = this._values[id];
this._values[id] = null;
this._ids.delete(v);
this._idPool.push(id);
}
},
// func stringVal(value string) ref
"syscall/js.stringVal": (sp) => {
sp >>>= 0;
storeValue(sp + 24, loadString(sp + 8));
},
// func valueGet(v ref, p string) ref
"syscall/js.valueGet": (sp) => {
sp >>>= 0;
const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 32, result);
},
// func valueSet(v ref, p string, x ref)
"syscall/js.valueSet": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
},
// func valueDelete(v ref, p string)
"syscall/js.valueDelete": (sp) => {
sp >>>= 0;
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
},
// func valueIndex(v ref, i int) ref
"syscall/js.valueIndex": (sp) => {
sp >>>= 0;
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
},
// valueSetIndex(v ref, i int, x ref)
"syscall/js.valueSetIndex": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
},
// func valueCall(v ref, m string, args []ref) (ref, bool)
"syscall/js.valueCall": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const m = Reflect.get(v, loadString(sp + 16));
const args = loadSliceOfValues(sp + 32);
const result = Reflect.apply(m, v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, result);
this.mem.setUint8(sp + 64, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, err);
this.mem.setUint8(sp + 64, 0);
}
},
// func valueInvoke(v ref, args []ref) (ref, bool)
"syscall/js.valueInvoke": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.apply(v, undefined, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueNew(v ref, args []ref) (ref, bool)
"syscall/js.valueNew": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.construct(v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueLength(v ref) int
"syscall/js.valueLength": (sp) => {
sp >>>= 0;
setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
},
// valuePrepareString(v ref) (ref, int)
"syscall/js.valuePrepareString": (sp) => {
sp >>>= 0;
const str = encoder.encode(String(loadValue(sp + 8)));
storeValue(sp + 16, str);
setInt64(sp + 24, str.length);
},
// valueLoadString(v ref, b []byte)
"syscall/js.valueLoadString": (sp) => {
sp >>>= 0;
const str = loadValue(sp + 8);
loadSlice(sp + 16).set(str);
},
// func valueInstanceOf(v ref, t ref) bool
"syscall/js.valueInstanceOf": (sp) => {
sp >>>= 0;
this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);
},
// func copyBytesToGo(dst []byte, src ref) (int, bool)
"syscall/js.copyBytesToGo": (sp) => {
sp >>>= 0;
const dst = loadSlice(sp + 8);
const src = loadValue(sp + 32);
if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
// func copyBytesToJS(dst ref, src []byte) (int, bool)
"syscall/js.copyBytesToJS": (sp) => {
sp >>>= 0;
const dst = loadValue(sp + 8);
const src = loadSlice(sp + 16);
if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
"debug": (value) => {
console.log(value);
},
}
};
}
async run(instance) {
if (!(instance instanceof WebAssembly.Instance)) {
throw new Error("Go.run: WebAssembly.Instance expected");
}
this._inst = instance;
this.mem = new DataView(this._inst.exports.mem.buffer);
this._values = [ // JS values that Go currently has references to, indexed by reference id
NaN,
0,
null,
true,
false,
globalThis,
this,
];
this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id
this._ids = new Map([ // mapping from JS values to reference ids
[0, 1],
[null, 2],
[true, 3],
[false, 4],
[globalThis, 5],
[this, 6],
]);
this._idPool = []; // unused ids that have been garbage collected
this.exited = false; // whether the Go program has exited
// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
let offset = 4096;
const strPtr = (str) => {
const ptr = offset;
const bytes = encoder.encode(str + "\0");
new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);
offset += bytes.length;
if (offset % 8 !== 0) {
offset += 8 - (offset % 8);
}
return ptr;
};
const argc = this.argv.length;
const argvPtrs = [];
this.argv.forEach((arg) => {
argvPtrs.push(strPtr(arg));
});
argvPtrs.push(0);
const keys = Object.keys(this.env).sort();
keys.forEach((key) => {
argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
});
argvPtrs.push(0);
const argv = offset;
argvPtrs.forEach((ptr) => {
this.mem.setUint32(offset, ptr, true);
this.mem.setUint32(offset + 4, 0, true);
offset += 8;
});
// The linker guarantees global data starts from at least wasmMinDataAddr.
// Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr.
const wasmMinDataAddr = 4096 + 8192;
if (offset >= wasmMinDataAddr) {
throw new Error("total length of command line and environment variables exceeds limit");
}
this._inst.exports.run(argc, argv);
if (this.exited) {
this._resolveExitPromise();
}
await this._exitPromise;
}
_resume() {
if (this.exited) {
throw new Error("Go program has already exited");
}
this._inst.exports.resume();
if (this.exited) {
this._resolveExitPromise();
}
}
_makeFuncWrapper(id) {
const go = this;
return function () {
const event = { id: id, this: this, args: arguments };
go._pendingEvent = event;
go._resume();
return event.result;
};
}
}
})();

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// Package renderer renders the given AST to certain formats.
package renderer
import (
"bufio"
"io"
"sync"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/util"
)
// A Config struct is a data structure that holds configuration of the Renderer.
type Config struct {
Options map[OptionName]interface{}
NodeRenderers util.PrioritizedSlice
}
// NewConfig returns a new Config.
func NewConfig() *Config {
return &Config{
Options: map[OptionName]interface{}{},
NodeRenderers: util.PrioritizedSlice{},
}
}
// An OptionName is a name of the option.
type OptionName string
// An Option interface is a functional option type for the Renderer.
type Option interface {
SetConfig(*Config)
}
type withNodeRenderers struct {
value []util.PrioritizedValue
}
func (o *withNodeRenderers) SetConfig(c *Config) {
c.NodeRenderers = append(c.NodeRenderers, o.value...)
}
// WithNodeRenderers is a functional option that allow you to add
// NodeRenderers to the renderer.
func WithNodeRenderers(ps ...util.PrioritizedValue) Option {
return &withNodeRenderers{ps}
}
type withOption struct {
name OptionName
value interface{}
}
func (o *withOption) SetConfig(c *Config) {
c.Options[o.name] = o.value
}
// WithOption is a functional option that allow you to set
// an arbitrary option to the parser.
func WithOption(name OptionName, value interface{}) Option {
return &withOption{name, value}
}
// A SetOptioner interface sets given option to the object.
type SetOptioner interface {
// SetOption sets given option to the object.
// Unacceptable options may be passed.
// Thus implementations must ignore unacceptable options.
SetOption(name OptionName, value interface{})
}
// NodeRendererFunc is a function that renders a given node.
type NodeRendererFunc func(writer util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error)
// A NodeRenderer interface offers NodeRendererFuncs.
type NodeRenderer interface {
// RendererFuncs registers NodeRendererFuncs to given NodeRendererFuncRegisterer.
RegisterFuncs(NodeRendererFuncRegisterer)
}
// A NodeRendererFuncRegisterer registers given NodeRendererFunc to this object.
type NodeRendererFuncRegisterer interface {
// Register registers given NodeRendererFunc to this object.
Register(ast.NodeKind, NodeRendererFunc)
}
// A Renderer interface renders given AST node to given
// writer with given Renderer.
type Renderer interface {
Render(w io.Writer, source []byte, n ast.Node) error
// AddOptions adds given option to this renderer.
AddOptions(...Option)
}
type renderer struct {
config *Config
options map[OptionName]interface{}
nodeRendererFuncsTmp map[ast.NodeKind]NodeRendererFunc
maxKind int
nodeRendererFuncs []NodeRendererFunc
initSync sync.Once
}
// NewRenderer returns a new Renderer with given options.
func NewRenderer(options ...Option) Renderer {
config := NewConfig()
for _, opt := range options {
opt.SetConfig(config)
}
r := &renderer{
options: map[OptionName]interface{}{},
config: config,
nodeRendererFuncsTmp: map[ast.NodeKind]NodeRendererFunc{},
}
return r
}
func (r *renderer) AddOptions(opts ...Option) {
for _, opt := range opts {
opt.SetConfig(r.config)
}
}
func (r *renderer) Register(kind ast.NodeKind, v NodeRendererFunc) {
r.nodeRendererFuncsTmp[kind] = v
if int(kind) > r.maxKind {
r.maxKind = int(kind)
}
}
// Render renders the given AST node to the given writer with the given Renderer.
func (r *renderer) Render(w io.Writer, source []byte, n ast.Node) error {
r.initSync.Do(func() {
r.options = r.config.Options
r.config.NodeRenderers.Sort()
l := len(r.config.NodeRenderers)
for i := l - 1; i >= 0; i-- {
v := r.config.NodeRenderers[i]
nr, _ := v.Value.(NodeRenderer)
if se, ok := v.Value.(SetOptioner); ok {
for oname, ovalue := range r.options {
se.SetOption(oname, ovalue)
}
}
nr.RegisterFuncs(r)
}
r.nodeRendererFuncs = make([]NodeRendererFunc, r.maxKind+1)
for kind, nr := range r.nodeRendererFuncsTmp {
r.nodeRendererFuncs[kind] = nr
}
r.config = nil
r.nodeRendererFuncsTmp = nil
})
writer, ok := w.(util.BufWriter)
if !ok {
writer = bufio.NewWriter(w)
}
err := ast.Walk(n, func(n ast.Node, entering bool) (ast.WalkStatus, error) {
s := ast.WalkStatus(ast.WalkContinue)
var err error
f := r.nodeRendererFuncs[n.Kind()]
if f != nil {
s, err = f(writer, source, n, entering)
}
return s, err
})
if err != nil {
return err
}
return writer.Flush()
}

30
src/playground/Makefile Normal file
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WASM_EXEC := $(shell go env GOROOT)/misc/wasm/wasm_exec.js
OUT_DIR=../../public/playground
GOLDMARK_VERSION = $(shell bash -c "")
all: $(OUT_DIR)/goldmark-playground.wasm $(OUT_DIR)/index.html $(OUT_DIR)/playground.css
.PHONY: run
run:
python3 -m http.server --directory $(OUT_DIR)
$(OUT_DIR)/index.html: index.html
mkdir -p $(@D)
version=$$(cat wasm/go.mod | grep goldmark | awk '{print $$3}'); cat $< | sed -e "s!{{version}}!$${version}!g" > $@
$(OUT_DIR)/playground.css: playground.css
mkdir -p $(@D)
cp $< $@
$(OUT_DIR)/goldmark-playground.wasm: wasm/main.go $(OUT_DIR)/wasm_exec.js
mkdir -p $(@D)
cd wasm; GOOS=js GOARCH=wasm go build -o ../$@ $$(basename "$<")
$(OUT_DIR)/wasm_exec.js: $(WASM_EXEC)
mkdir -p $(@D)
cp $< $@
.PHONY: clean
clean:
rm -rf $(OUT_DIR)

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src/playground/index.html Normal file
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<html>
<head>
<meta charset="utf-8">
<title>goldmark playground</title>
<link rel="stylesheet" href="./playground.css">
<script src="./wasm_exec.js"></script>
<script>
const $ = (id) => document.getElementById(id);
const $$ = (q) => document.querySelector(q);
const goldmarkVersion = "{{version}}";
const optionNames = [
"optTableExtension",
"optStrikethroughExtension",
"optLinkifyExtension",
"optTaskListExtension",
"optDefinitionListExtension",
"optFootnoteExtension",
"optTypographerExtension",
"optCJKExtension",
"optXHTML",
];
const getOptions = function() {
let options = 0;
for(const optionName of optionNames) {
if(document.getElementsByName(optionName)[0].checked) {
options |= window[optionName];
}
}
return options;
};
const setOptions = function(value) {
value = !value ? 0 : parseInt(value);
for(const optionName of optionNames) {
if((window[optionName] & value) === window[optionName]) {
document.getElementsByName(optionName)[0].checked = true;
}
}
};
const isMobile = function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))){ return true;}else{return false;}}(navigator.userAgent||navigator.vendor||window.opera);
const isSlowConn = function(){
let effectiveType = "";
try {
effectiveType = window.navigator.connection.effectiveType;
}catch{}
return effectiveType === "slow-2g" || effectiveType === "2g" || effectiveType === "3g";
}();
const convert = function() {
const inputElm = $('input');
const previewElm = $('preview');
const htmlElm= $$('#html pre');
const permelinkElm = $('permalink')
const options = getOptions();
const html = toHtml(inputElm.value, options);
previewElm.innerHTML = html;
htmlElm.innerText = html;
const u = new URL(location.href);
u.searchParams.delete("m");
u.searchParams.set("m", encodeURIComponent(inputElm.value));
u.searchParams.set("o", getOptions());
u.searchParams.set("v", encodeURIComponent(goldmarkVersion));
permelinkElm.href = u.href;
}
document.addEventListener('DOMContentLoaded', function() {
if(isMobile || isSlowConn) {
if(!confirm("This page uses WASM modules. Size is approximately 5-10MB. Are you sure to load?")) {
return;
}
}
const go = new Go();
const WASM_URL = './goldmark-playground.wasm';
var wasm;
const onload = function(obj) {
wasm = obj.instance;
go.run(wasm);
document.getElementById("convert-markdown").disabled = false;
const u = new URL(location.href);
if(u.searchParams.has("m")) {
setOptions(u.searchParams.get("o"));
$("input").value = decodeURIComponent(u.searchParams.get("m"));
convert();
}
};
if ('instantiateStreaming' in WebAssembly) {
WebAssembly.instantiateStreaming(fetch(WASM_URL), go.importObject).then(onload);
} else {
fetch(WASM_URL).then(resp =>
resp.arrayBuffer()
).then(bytes => WebAssembly.instantiate(bytes, go.importObject).then(onload));
}
});
</script>
</head>
<body>
<h1>goldmark@{{version}} playground</h1>
<div id="container">
<div id="markdown">
<div>
table:<input type="checkbox" name="optTableExtension"/ >&nbsp;
strikethrough:<input type="checkbox" name="optStrikethroughExtension"/ >&nbsp;
linkify:<input type="checkbox" name="optLinkifyExtension"/ >&nbsp;
taklist:<input type="checkbox" name="optTaskListExtension"/ >&nbsp;
definition list:<input type="checkbox" name="optDefinitionListExtension"/ >&nbsp;
footnote:<input type="checkbox" name="optFootnoteExtension"/ >&nbsp;
typographer:<input type="checkbox" name="optTypographerExtension"/ >&nbsp;
cjk:<input type="checkbox" name="optCJKExtension"/ >&nbsp;
XHTML:<input type="checkbox" name="optXHTML"/ >&nbsp;
</div>
<div>
<a id="permalink" href="">permalink</a>&nbsp;&nbsp;&nbsp;
<span id="clear" onclick="$('input').value='';return false;">clear</span>
</div>
<div>
<textarea id="input" placeholder="markdown" rows="20"></textarea>
</div>
<div>
<button onClick="convert();" id="convert-markdown" disabled>Convert</button>
</div>
</div>
<div id="output">
<div id="tab-wrapper">
<input id="preview-tab" type="radio" name="tab" class="tab-switch" checked="checked" /><label class="tab-label" for="preview-tab">Preview</label>
<input id="html-tab" type="radio" name="tab" class="tab-switch" /><label class="tab-label" for="html-tab">HTML</label>
<div id="tabs" class="tabs">
<div class="tab-content" id="preview">
</div>
<div class="tab-content" id="html">
<pre>
</pre>
</div>
</div>
</div>
</div>
</div>
</body>
</html>

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module main
go 1.21.5
require github.com/yuin/goldmark v1.7.0 // indirect

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@ -0,0 +1,2 @@
github.com/yuin/goldmark v1.7.0 h1:EfOIvIMZIzHdB/R/zVrikYLPPwJlfMcNczJFMs1m6sA=
github.com/yuin/goldmark v1.7.0/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=

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@ -0,0 +1,92 @@
package main
import (
"bytes"
"syscall/js"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
)
const (
optTableExtension int = 1 << iota
optStrikethroughExtension
optLinkifyExtension
optTaskListExtension
optDefinitionListExtension
optFootnoteExtension
optTypographerExtension
optCJKExtension
optXHTML
)
func toHtml(_ js.Value, args []js.Value) any {
source := args[0].String()
opts := args[1].Int()
out := convert(source, opts)
return out
}
func main() {
c := make(chan struct{}, 0)
js.Global().Set("toHtml", js.FuncOf(toHtml))
js.Global().Set("optTableExtension", js.ValueOf(optTableExtension))
js.Global().Set("optStrikethroughExtension", js.ValueOf(optStrikethroughExtension))
js.Global().Set("optLinkifyExtension", js.ValueOf(optLinkifyExtension))
js.Global().Set("optTaskListExtension", js.ValueOf(optTaskListExtension))
js.Global().Set("optDefinitionListExtension", js.ValueOf(optDefinitionListExtension))
js.Global().Set("optFootnoteExtension", js.ValueOf(optFootnoteExtension))
js.Global().Set("optTypographerExtension", js.ValueOf(optTypographerExtension))
js.Global().Set("optCJKExtension", js.ValueOf(optCJKExtension))
js.Global().Set("optXHTML", js.ValueOf(optXHTML))
<-c
}
func convert(s string, opts int) string {
source := []byte(s)
var out bytes.Buffer
var extensions []goldmark.Extender
var renderer []renderer.Option
if opts&optTableExtension == optTableExtension {
extensions = append(extensions, extension.Table)
}
if opts&optStrikethroughExtension == optStrikethroughExtension {
extensions = append(extensions, extension.Strikethrough)
}
if opts&optLinkifyExtension == optLinkifyExtension {
extensions = append(extensions, extension.Linkify)
}
if opts&optTaskListExtension == optTaskListExtension {
extensions = append(extensions, extension.TaskList)
}
if opts&optDefinitionListExtension == optDefinitionListExtension {
extensions = append(extensions, extension.DefinitionList)
}
if opts&optFootnoteExtension == optFootnoteExtension {
extensions = append(extensions, extension.Footnote)
}
if opts&optTypographerExtension == optTypographerExtension {
extensions = append(extensions, extension.Typographer)
}
if opts&optCJKExtension == optCJKExtension {
extensions = append(extensions, extension.CJK)
}
if opts&optXHTML == optXHTML {
renderer = append(renderer, html.WithXHTML())
}
md := goldmark.New(
goldmark.WithExtensions(extensions...),
goldmark.WithRendererOptions(renderer...),
)
_ = md.Convert(source, &out)
return out.String()
}

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@ -1,409 +0,0 @@
// Package testutil provides utilities for unit tests.
package testutil
import (
"bufio"
"bytes"
"encoding/hex"
"encoding/json"
"fmt"
"os"
"regexp"
"runtime/debug"
"strconv"
"strings"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/util"
)
// TestingT is a subset of the functionality provided by testing.T.
type TestingT interface {
Logf(string, ...interface{})
Skipf(string, ...interface{})
Errorf(string, ...interface{})
FailNow()
}
// MarkdownTestCase represents a test case.
type MarkdownTestCase struct {
No int
Description string
Options MarkdownTestCaseOptions
Markdown string
Expected string
}
func source(t *MarkdownTestCase) string {
ret := t.Markdown
if t.Options.Trim {
ret = strings.TrimSpace(ret)
}
if t.Options.EnableEscape {
return string(applyEscapeSequence([]byte(ret)))
}
return ret
}
func expected(t *MarkdownTestCase) string {
ret := t.Expected
if t.Options.Trim {
ret = strings.TrimSpace(ret)
}
if t.Options.EnableEscape {
return string(applyEscapeSequence([]byte(ret)))
}
return ret
}
// MarkdownTestCaseOptions represents options for each test case.
type MarkdownTestCaseOptions struct {
EnableEscape bool
Trim bool
}
const attributeSeparator = "//- - - - - - - - -//"
const caseSeparator = "//= = = = = = = = = = = = = = = = = = = = = = = =//"
var optionsRegexp = regexp.MustCompile(`(?i)\s*options:(.*)`)
// ParseCliCaseArg parses -case command line args.
func ParseCliCaseArg() []int {
ret := []int{}
for _, a := range os.Args {
if strings.HasPrefix(a, "case=") {
parts := strings.Split(a, "=")
for _, cas := range strings.Split(parts[1], ",") {
value, err := strconv.Atoi(strings.TrimSpace(cas))
if err == nil {
ret = append(ret, value)
}
}
}
}
return ret
}
// DoTestCaseFile runs test cases in a given file.
func DoTestCaseFile(m goldmark.Markdown, filename string, t TestingT, no ...int) {
fp, err := os.Open(filename)
if err != nil {
panic(err)
}
defer func() {
_ = fp.Close()
}()
scanner := bufio.NewScanner(fp)
c := MarkdownTestCase{
No: -1,
Description: "",
Options: MarkdownTestCaseOptions{},
Markdown: "",
Expected: "",
}
cases := []MarkdownTestCase{}
line := 0
for scanner.Scan() {
line++
if util.IsBlank([]byte(scanner.Text())) {
continue
}
header := scanner.Text()
c.Description = ""
if strings.Contains(header, ":") {
parts := strings.Split(header, ":")
c.No, err = strconv.Atoi(strings.TrimSpace(parts[0]))
c.Description = strings.Join(parts[1:], ":")
} else {
c.No, err = strconv.Atoi(scanner.Text())
}
if err != nil {
panic(fmt.Sprintf("%s: invalid case No at line %d", filename, line))
}
if !scanner.Scan() {
panic(fmt.Sprintf("%s: invalid case at line %d", filename, line))
}
line++
matches := optionsRegexp.FindAllStringSubmatch(scanner.Text(), -1)
if len(matches) != 0 {
err = json.Unmarshal([]byte(matches[0][1]), &c.Options)
if err != nil {
panic(fmt.Sprintf("%s: invalid options at line %d", filename, line))
}
scanner.Scan()
line++
}
if scanner.Text() != attributeSeparator {
panic(fmt.Sprintf("%s: invalid separator '%s' at line %d", filename, scanner.Text(), line))
}
buf := []string{}
for scanner.Scan() {
line++
text := scanner.Text()
if text == attributeSeparator {
break
}
buf = append(buf, text)
}
c.Markdown = strings.Join(buf, "\n")
buf = []string{}
for scanner.Scan() {
line++
text := scanner.Text()
if text == caseSeparator {
break
}
buf = append(buf, text)
}
c.Expected = strings.Join(buf, "\n")
if len(c.Expected) != 0 {
c.Expected = c.Expected + "\n"
}
shouldAdd := len(no) == 0
if !shouldAdd {
for _, n := range no {
if n == c.No {
shouldAdd = true
break
}
}
}
if shouldAdd {
cases = append(cases, c)
}
}
DoTestCases(m, cases, t)
}
// DoTestCases runs a set of test cases.
func DoTestCases(m goldmark.Markdown, cases []MarkdownTestCase, t TestingT, opts ...parser.ParseOption) {
for _, testCase := range cases {
DoTestCase(m, testCase, t, opts...)
}
}
// DoTestCase runs a test case.
func DoTestCase(m goldmark.Markdown, testCase MarkdownTestCase, t TestingT, opts ...parser.ParseOption) {
var ok bool
var out bytes.Buffer
defer func() {
description := ""
if len(testCase.Description) != 0 {
description = ": " + testCase.Description
}
if err := recover(); err != nil {
format := `============= case %d%s ================
Markdown:
-----------
%s
Expected:
----------
%s
Actual
---------
%v
%s
`
t.Errorf(format, testCase.No, description, source(&testCase), expected(&testCase), err, debug.Stack())
} else if !ok {
format := `============= case %d%s ================
Markdown:
-----------
%s
Expected:
----------
%s
Actual
---------
%s
Diff
---------
%s
`
t.Errorf(format, testCase.No, description, source(&testCase), expected(&testCase), out.Bytes(),
DiffPretty([]byte(expected(&testCase)), out.Bytes()))
}
}()
if err := m.Convert([]byte(source(&testCase)), &out, opts...); err != nil {
panic(err)
}
ok = bytes.Equal(bytes.TrimSpace(out.Bytes()), bytes.TrimSpace([]byte(expected(&testCase))))
}
type diffType int
const (
diffRemoved diffType = iota
diffAdded
diffNone
)
type diff struct {
Type diffType
Lines [][]byte
}
func simpleDiff(v1, v2 []byte) []diff {
return simpleDiffAux(
bytes.Split(v1, []byte("\n")),
bytes.Split(v2, []byte("\n")))
}
func simpleDiffAux(v1lines, v2lines [][]byte) []diff {
v1index := map[string][]int{}
for i, line := range v1lines {
key := util.BytesToReadOnlyString(line)
if _, ok := v1index[key]; !ok {
v1index[key] = []int{}
}
v1index[key] = append(v1index[key], i)
}
overlap := map[int]int{}
v1start := 0
v2start := 0
length := 0
for v2pos, line := range v2lines {
newOverlap := map[int]int{}
key := util.BytesToReadOnlyString(line)
if _, ok := v1index[key]; !ok {
v1index[key] = []int{}
}
for _, v1pos := range v1index[key] {
value := 0
if v1pos != 0 {
if v, ok := overlap[v1pos-1]; ok {
value = v
}
}
newOverlap[v1pos] = value + 1
if newOverlap[v1pos] > length {
length = newOverlap[v1pos]
v1start = v1pos - length + 1
v2start = v2pos - length + 1
}
}
overlap = newOverlap
}
if length == 0 {
diffs := []diff{}
if len(v1lines) != 0 {
diffs = append(diffs, diff{diffRemoved, v1lines})
}
if len(v2lines) != 0 {
diffs = append(diffs, diff{diffAdded, v2lines})
}
return diffs
}
diffs := simpleDiffAux(v1lines[:v1start], v2lines[:v2start])
diffs = append(diffs, diff{diffNone, v2lines[v2start : v2start+length]})
diffs = append(diffs, simpleDiffAux(v1lines[v1start+length:],
v2lines[v2start+length:])...)
return diffs
}
// DiffPretty returns pretty formatted diff between given bytes.
func DiffPretty(v1, v2 []byte) []byte {
var b bytes.Buffer
diffs := simpleDiff(v1, v2)
for _, diff := range diffs {
c := " "
switch diff.Type {
case diffAdded:
c = "+"
case diffRemoved:
c = "-"
case diffNone:
c = " "
}
for _, line := range diff.Lines {
if c != " " {
b.WriteString(fmt.Sprintf("%s | %s\n", c, util.VisualizeSpaces(line)))
} else {
b.WriteString(fmt.Sprintf("%s | %s\n", c, line))
}
}
}
return b.Bytes()
}
func applyEscapeSequence(b []byte) []byte {
result := make([]byte, 0, len(b))
for i := 0; i < len(b); i++ {
if b[i] == '\\' && i != len(b)-1 {
switch b[i+1] {
case 'a':
result = append(result, '\a')
i++
continue
case 'b':
result = append(result, '\b')
i++
continue
case 'f':
result = append(result, '\f')
i++
continue
case 'n':
result = append(result, '\n')
i++
continue
case 'r':
result = append(result, '\r')
i++
continue
case 't':
result = append(result, '\t')
i++
continue
case 'v':
result = append(result, '\v')
i++
continue
case '\\':
result = append(result, '\\')
i++
continue
case 'x':
if len(b) >= i+3 && util.IsHexDecimal(b[i+2]) && util.IsHexDecimal(b[i+3]) {
v, _ := hex.DecodeString(string(b[i+2 : i+4]))
result = append(result, v[0])
i += 3
continue
}
case 'u', 'U':
if len(b) > i+2 {
num := []byte{}
for j := i + 2; j < len(b); j++ {
if util.IsHexDecimal(b[j]) {
num = append(num, b[j])
continue
}
break
}
if len(num) >= 4 && len(num) < 8 {
v, _ := strconv.ParseInt(string(num[:4]), 16, 32)
result = append(result, []byte(string(rune(v)))...)
i += 5
continue
}
if len(num) >= 8 {
v, _ := strconv.ParseInt(string(num[:8]), 16, 32)
result = append(result, []byte(string(rune(v)))...)
i += 9
continue
}
}
}
}
result = append(result, b[i])
}
return result
}

View file

@ -1,7 +0,0 @@
package testutil
import "testing"
// This will fail to compile if the TestingT interface is changed in a way
// that doesn't conform to testing.T.
var _ TestingT = (*testing.T)(nil)

View file

@ -1,2 +0,0 @@
// Package text provides functionalities to manipulate texts.
package text

View file

@ -1,660 +0,0 @@
package text
import (
"bytes"
"io"
"regexp"
"unicode/utf8"
"github.com/yuin/goldmark/util"
)
const invalidValue = -1
// EOF indicates the end of file.
const EOF = byte(0xff)
// A Reader interface provides abstracted method for reading text.
type Reader interface {
io.RuneReader
// Source returns a source of the reader.
Source() []byte
// ResetPosition resets positions.
ResetPosition()
// Peek returns a byte at current position without advancing the internal pointer.
Peek() byte
// PeekLine returns the current line without advancing the internal pointer.
PeekLine() ([]byte, Segment)
// PrecendingCharacter returns a character just before current internal pointer.
PrecendingCharacter() rune
// Value returns a value of the given segment.
Value(Segment) []byte
// LineOffset returns a distance from the line head to current position.
LineOffset() int
// Position returns current line number and position.
Position() (int, Segment)
// SetPosition sets current line number and position.
SetPosition(int, Segment)
// SetPadding sets padding to the reader.
SetPadding(int)
// Advance advances the internal pointer.
Advance(int)
// AdvanceAndSetPadding advances the internal pointer and add padding to the
// reader.
AdvanceAndSetPadding(int, int)
// AdvanceLine advances the internal pointer to the next line head.
AdvanceLine()
// SkipSpaces skips space characters and returns a non-blank line.
// If it reaches EOF, returns false.
SkipSpaces() (Segment, int, bool)
// SkipSpaces skips blank lines and returns a non-blank line.
// If it reaches EOF, returns false.
SkipBlankLines() (Segment, int, bool)
// Match performs regular expression matching to current line.
Match(reg *regexp.Regexp) bool
// Match performs regular expression searching to current line.
FindSubMatch(reg *regexp.Regexp) [][]byte
// FindClosure finds corresponding closure.
FindClosure(opener, closer byte, options FindClosureOptions) (*Segments, bool)
}
// FindClosureOptions is options for Reader.FindClosure.
type FindClosureOptions struct {
// CodeSpan is a flag for the FindClosure. If this is set to true,
// FindClosure ignores closers in codespans.
CodeSpan bool
// Nesting is a flag for the FindClosure. If this is set to true,
// FindClosure allows nesting.
Nesting bool
// Newline is a flag for the FindClosure. If this is set to true,
// FindClosure searches for a closer over multiple lines.
Newline bool
// Advance is a flag for the FindClosure. If this is set to true,
// FindClosure advances pointers when closer is found.
Advance bool
}
type reader struct {
source []byte
sourceLength int
line int
peekedLine []byte
pos Segment
head int
lineOffset int
}
// NewReader return a new Reader that can read UTF-8 bytes .
func NewReader(source []byte) Reader {
r := &reader{
source: source,
sourceLength: len(source),
}
r.ResetPosition()
return r
}
func (r *reader) FindClosure(opener, closer byte, options FindClosureOptions) (*Segments, bool) {
return findClosureReader(r, opener, closer, options)
}
func (r *reader) ResetPosition() {
r.line = -1
r.head = 0
r.lineOffset = -1
r.AdvanceLine()
}
func (r *reader) Source() []byte {
return r.source
}
func (r *reader) Value(seg Segment) []byte {
return seg.Value(r.source)
}
func (r *reader) Peek() byte {
if r.pos.Start >= 0 && r.pos.Start < r.sourceLength {
if r.pos.Padding != 0 {
return space[0]
}
return r.source[r.pos.Start]
}
return EOF
}
func (r *reader) PeekLine() ([]byte, Segment) {
if r.pos.Start >= 0 && r.pos.Start < r.sourceLength {
if r.peekedLine == nil {
r.peekedLine = r.pos.Value(r.Source())
}
return r.peekedLine, r.pos
}
return nil, r.pos
}
// io.RuneReader interface.
func (r *reader) ReadRune() (rune, int, error) {
return readRuneReader(r)
}
func (r *reader) LineOffset() int {
if r.lineOffset < 0 {
v := 0
for i := r.head; i < r.pos.Start; i++ {
if r.source[i] == '\t' {
v += util.TabWidth(v)
} else {
v++
}
}
r.lineOffset = v - r.pos.Padding
}
return r.lineOffset
}
func (r *reader) PrecendingCharacter() rune {
if r.pos.Start <= 0 {
if r.pos.Padding != 0 {
return rune(' ')
}
return rune('\n')
}
i := r.pos.Start - 1
for ; i >= 0; i-- {
if utf8.RuneStart(r.source[i]) {
break
}
}
rn, _ := utf8.DecodeRune(r.source[i:])
return rn
}
func (r *reader) Advance(n int) {
r.lineOffset = -1
if n < len(r.peekedLine) && r.pos.Padding == 0 {
r.pos.Start += n
r.peekedLine = nil
return
}
r.peekedLine = nil
l := r.sourceLength
for ; n > 0 && r.pos.Start < l; n-- {
if r.pos.Padding != 0 {
r.pos.Padding--
continue
}
if r.source[r.pos.Start] == '\n' {
r.AdvanceLine()
continue
}
r.pos.Start++
}
}
func (r *reader) AdvanceAndSetPadding(n, padding int) {
r.Advance(n)
if padding > r.pos.Padding {
r.SetPadding(padding)
}
}
func (r *reader) AdvanceLine() {
r.lineOffset = -1
r.peekedLine = nil
r.pos.Start = r.pos.Stop
r.head = r.pos.Start
if r.pos.Start < 0 {
return
}
r.pos.Stop = r.sourceLength
for i := r.pos.Start; i < r.sourceLength; i++ {
c := r.source[i]
if c == '\n' {
r.pos.Stop = i + 1
break
}
}
r.line++
r.pos.Padding = 0
}
func (r *reader) Position() (int, Segment) {
return r.line, r.pos
}
func (r *reader) SetPosition(line int, pos Segment) {
r.lineOffset = -1
r.line = line
r.pos = pos
}
func (r *reader) SetPadding(v int) {
r.pos.Padding = v
}
func (r *reader) SkipSpaces() (Segment, int, bool) {
return skipSpacesReader(r)
}
func (r *reader) SkipBlankLines() (Segment, int, bool) {
return skipBlankLinesReader(r)
}
func (r *reader) Match(reg *regexp.Regexp) bool {
return matchReader(r, reg)
}
func (r *reader) FindSubMatch(reg *regexp.Regexp) [][]byte {
return findSubMatchReader(r, reg)
}
// A BlockReader interface is a reader that is optimized for Blocks.
type BlockReader interface {
Reader
// Reset resets current state and sets new segments to the reader.
Reset(segment *Segments)
}
type blockReader struct {
source []byte
segments *Segments
segmentsLength int
line int
pos Segment
head int
last int
lineOffset int
}
// NewBlockReader returns a new BlockReader.
func NewBlockReader(source []byte, segments *Segments) BlockReader {
r := &blockReader{
source: source,
}
if segments != nil {
r.Reset(segments)
}
return r
}
func (r *blockReader) FindClosure(opener, closer byte, options FindClosureOptions) (*Segments, bool) {
return findClosureReader(r, opener, closer, options)
}
func (r *blockReader) ResetPosition() {
r.line = -1
r.head = 0
r.last = 0
r.lineOffset = -1
r.pos.Start = -1
r.pos.Stop = -1
r.pos.Padding = 0
if r.segmentsLength > 0 {
last := r.segments.At(r.segmentsLength - 1)
r.last = last.Stop
}
r.AdvanceLine()
}
func (r *blockReader) Reset(segments *Segments) {
r.segments = segments
r.segmentsLength = segments.Len()
r.ResetPosition()
}
func (r *blockReader) Source() []byte {
return r.source
}
func (r *blockReader) Value(seg Segment) []byte {
line := r.segmentsLength - 1
ret := make([]byte, 0, seg.Stop-seg.Start+1)
for ; line >= 0; line-- {
if seg.Start >= r.segments.At(line).Start {
break
}
}
i := seg.Start
for ; line < r.segmentsLength; line++ {
s := r.segments.At(line)
if i < 0 {
i = s.Start
}
ret = s.ConcatPadding(ret)
for ; i < seg.Stop && i < s.Stop; i++ {
ret = append(ret, r.source[i])
}
i = -1
if s.Stop > seg.Stop {
break
}
}
return ret
}
// io.RuneReader interface.
func (r *blockReader) ReadRune() (rune, int, error) {
return readRuneReader(r)
}
func (r *blockReader) PrecendingCharacter() rune {
if r.pos.Padding != 0 {
return rune(' ')
}
if r.segments.Len() < 1 {
return rune('\n')
}
firstSegment := r.segments.At(0)
if r.line == 0 && r.pos.Start <= firstSegment.Start {
return rune('\n')
}
l := len(r.source)
i := r.pos.Start - 1
for ; i < l && i >= 0; i-- {
if utf8.RuneStart(r.source[i]) {
break
}
}
if i < 0 || i >= l {
return rune('\n')
}
rn, _ := utf8.DecodeRune(r.source[i:])
return rn
}
func (r *blockReader) LineOffset() int {
if r.lineOffset < 0 {
v := 0
for i := r.head; i < r.pos.Start; i++ {
if r.source[i] == '\t' {
v += util.TabWidth(v)
} else {
v++
}
}
r.lineOffset = v - r.pos.Padding
}
return r.lineOffset
}
func (r *blockReader) Peek() byte {
if r.line < r.segmentsLength && r.pos.Start >= 0 && r.pos.Start < r.last {
if r.pos.Padding != 0 {
return space[0]
}
return r.source[r.pos.Start]
}
return EOF
}
func (r *blockReader) PeekLine() ([]byte, Segment) {
if r.line < r.segmentsLength && r.pos.Start >= 0 && r.pos.Start < r.last {
return r.pos.Value(r.source), r.pos
}
return nil, r.pos
}
func (r *blockReader) Advance(n int) {
r.lineOffset = -1
if n < r.pos.Stop-r.pos.Start && r.pos.Padding == 0 {
r.pos.Start += n
return
}
for ; n > 0; n-- {
if r.pos.Padding != 0 {
r.pos.Padding--
continue
}
if r.pos.Start >= r.pos.Stop-1 && r.pos.Stop < r.last {
r.AdvanceLine()
continue
}
r.pos.Start++
}
}
func (r *blockReader) AdvanceAndSetPadding(n, padding int) {
r.Advance(n)
if padding > r.pos.Padding {
r.SetPadding(padding)
}
}
func (r *blockReader) AdvanceLine() {
r.SetPosition(r.line+1, NewSegment(invalidValue, invalidValue))
r.head = r.pos.Start
}
func (r *blockReader) Position() (int, Segment) {
return r.line, r.pos
}
func (r *blockReader) SetPosition(line int, pos Segment) {
r.lineOffset = -1
r.line = line
if pos.Start == invalidValue {
if r.line < r.segmentsLength {
s := r.segments.At(line)
r.head = s.Start
r.pos = s
}
} else {
r.pos = pos
if r.line < r.segmentsLength {
s := r.segments.At(line)
r.head = s.Start
}
}
}
func (r *blockReader) SetPadding(v int) {
r.lineOffset = -1
r.pos.Padding = v
}
func (r *blockReader) SkipSpaces() (Segment, int, bool) {
return skipSpacesReader(r)
}
func (r *blockReader) SkipBlankLines() (Segment, int, bool) {
return skipBlankLinesReader(r)
}
func (r *blockReader) Match(reg *regexp.Regexp) bool {
return matchReader(r, reg)
}
func (r *blockReader) FindSubMatch(reg *regexp.Regexp) [][]byte {
return findSubMatchReader(r, reg)
}
func skipBlankLinesReader(r Reader) (Segment, int, bool) {
lines := 0
for {
line, seg := r.PeekLine()
if line == nil {
return seg, lines, false
}
if util.IsBlank(line) {
lines++
r.AdvanceLine()
} else {
return seg, lines, true
}
}
}
func skipSpacesReader(r Reader) (Segment, int, bool) {
chars := 0
for {
line, segment := r.PeekLine()
if line == nil {
return segment, chars, false
}
for i, c := range line {
if util.IsSpace(c) {
chars++
r.Advance(1)
continue
}
return segment.WithStart(segment.Start + i + 1), chars, true
}
}
}
func matchReader(r Reader, reg *regexp.Regexp) bool {
oldline, oldseg := r.Position()
match := reg.FindReaderSubmatchIndex(r)
r.SetPosition(oldline, oldseg)
if match == nil {
return false
}
r.Advance(match[1] - match[0])
return true
}
func findSubMatchReader(r Reader, reg *regexp.Regexp) [][]byte {
oldLine, oldSeg := r.Position()
match := reg.FindReaderSubmatchIndex(r)
r.SetPosition(oldLine, oldSeg)
if match == nil {
return nil
}
var bb bytes.Buffer
bb.Grow(match[1] - match[0])
for i := 0; i < match[1]; {
r, size, _ := readRuneReader(r)
i += size
bb.WriteRune(r)
}
bs := bb.Bytes()
var result [][]byte
for i := 0; i < len(match); i += 2 {
if match[i] < 0 {
result = append(result, []byte{})
continue
}
result = append(result, bs[match[i]:match[i+1]])
}
r.SetPosition(oldLine, oldSeg)
r.Advance(match[1] - match[0])
return result
}
func readRuneReader(r Reader) (rune, int, error) {
line, _ := r.PeekLine()
if line == nil {
return 0, 0, io.EOF
}
rn, size := utf8.DecodeRune(line)
if rn == utf8.RuneError {
return 0, 0, io.EOF
}
r.Advance(size)
return rn, size, nil
}
func findClosureReader(r Reader, opener, closer byte, opts FindClosureOptions) (*Segments, bool) {
opened := 1
codeSpanOpener := 0
closed := false
orgline, orgpos := r.Position()
var ret *Segments
for {
bs, seg := r.PeekLine()
if bs == nil {
goto end
}
i := 0
for i < len(bs) {
c := bs[i]
if opts.CodeSpan && codeSpanOpener != 0 && c == '`' {
codeSpanCloser := 0
for ; i < len(bs); i++ {
if bs[i] == '`' {
codeSpanCloser++
} else {
i--
break
}
}
if codeSpanCloser == codeSpanOpener {
codeSpanOpener = 0
}
} else if codeSpanOpener == 0 && c == '\\' && i < len(bs)-1 && util.IsPunct(bs[i+1]) {
i += 2
continue
} else if opts.CodeSpan && codeSpanOpener == 0 && c == '`' {
for ; i < len(bs); i++ {
if bs[i] == '`' {
codeSpanOpener++
} else {
i--
break
}
}
} else if (opts.CodeSpan && codeSpanOpener == 0) || !opts.CodeSpan {
if c == closer {
opened--
if opened == 0 {
if ret == nil {
ret = NewSegments()
}
ret.Append(seg.WithStop(seg.Start + i))
r.Advance(i + 1)
closed = true
goto end
}
} else if c == opener {
if !opts.Nesting {
goto end
}
opened++
}
}
i++
}
if !opts.Newline {
goto end
}
r.AdvanceLine()
if ret == nil {
ret = NewSegments()
}
ret.Append(seg)
}
end:
if !opts.Advance {
r.SetPosition(orgline, orgpos)
}
if closed {
return ret, true
}
return nil, false
}

View file

@ -1,16 +0,0 @@
package text
import (
"regexp"
"testing"
)
func TestFindSubMatchReader(t *testing.T) {
s := "微笑"
r := NewReader([]byte(":" + s + ":"))
reg := regexp.MustCompile(`:(\p{L}+):`)
match := r.FindSubMatch(reg)
if len(match) != 2 || string(match[1]) != s {
t.Fatal("no match cjk")
}
}

View file

@ -1,209 +0,0 @@
package text
import (
"bytes"
"github.com/yuin/goldmark/util"
)
var space = []byte(" ")
// A Segment struct holds information about source positions.
type Segment struct {
// Start is a start position of the segment.
Start int
// Stop is a stop position of the segment.
// This value should be excluded.
Stop int
// Padding is a padding length of the segment.
Padding int
}
// NewSegment return a new Segment.
func NewSegment(start, stop int) Segment {
return Segment{
Start: start,
Stop: stop,
Padding: 0,
}
}
// NewSegmentPadding returns a new Segment with the given padding.
func NewSegmentPadding(start, stop, n int) Segment {
return Segment{
Start: start,
Stop: stop,
Padding: n,
}
}
// Value returns a value of the segment.
func (t *Segment) Value(buffer []byte) []byte {
if t.Padding == 0 {
return buffer[t.Start:t.Stop]
}
result := make([]byte, 0, t.Padding+t.Stop-t.Start+1)
result = append(result, bytes.Repeat(space, t.Padding)...)
return append(result, buffer[t.Start:t.Stop]...)
}
// Len returns a length of the segment.
func (t *Segment) Len() int {
return t.Stop - t.Start + t.Padding
}
// Between returns a segment between this segment and the given segment.
func (t *Segment) Between(other Segment) Segment {
if t.Stop != other.Stop {
panic("invalid state")
}
return NewSegmentPadding(
t.Start,
other.Start,
t.Padding-other.Padding,
)
}
// IsEmpty returns true if this segment is empty, otherwise false.
func (t *Segment) IsEmpty() bool {
return t.Start >= t.Stop && t.Padding == 0
}
// TrimRightSpace returns a new segment by slicing off all trailing
// space characters.
func (t *Segment) TrimRightSpace(buffer []byte) Segment {
v := buffer[t.Start:t.Stop]
l := util.TrimRightSpaceLength(v)
if l == len(v) {
return NewSegment(t.Start, t.Start)
}
return NewSegmentPadding(t.Start, t.Stop-l, t.Padding)
}
// TrimLeftSpace returns a new segment by slicing off all leading
// space characters including padding.
func (t *Segment) TrimLeftSpace(buffer []byte) Segment {
v := buffer[t.Start:t.Stop]
l := util.TrimLeftSpaceLength(v)
return NewSegment(t.Start+l, t.Stop)
}
// TrimLeftSpaceWidth returns a new segment by slicing off leading space
// characters until the given width.
func (t *Segment) TrimLeftSpaceWidth(width int, buffer []byte) Segment {
padding := t.Padding
for ; width > 0; width-- {
if padding == 0 {
break
}
padding--
}
if width == 0 {
return NewSegmentPadding(t.Start, t.Stop, padding)
}
text := buffer[t.Start:t.Stop]
start := t.Start
for _, c := range text {
if start >= t.Stop-1 || width <= 0 {
break
}
if c == ' ' {
width--
} else if c == '\t' {
width -= 4
} else {
break
}
start++
}
if width < 0 {
padding = width * -1
}
return NewSegmentPadding(start, t.Stop, padding)
}
// WithStart returns a new Segment with same value except Start.
func (t *Segment) WithStart(v int) Segment {
return NewSegmentPadding(v, t.Stop, t.Padding)
}
// WithStop returns a new Segment with same value except Stop.
func (t *Segment) WithStop(v int) Segment {
return NewSegmentPadding(t.Start, v, t.Padding)
}
// ConcatPadding concats the padding to the given slice.
func (t *Segment) ConcatPadding(v []byte) []byte {
if t.Padding > 0 {
return append(v, bytes.Repeat(space, t.Padding)...)
}
return v
}
// Segments is a collection of the Segment.
type Segments struct {
values []Segment
}
// NewSegments return a new Segments.
func NewSegments() *Segments {
return &Segments{
values: nil,
}
}
// Append appends the given segment after the tail of the collection.
func (s *Segments) Append(t Segment) {
if s.values == nil {
s.values = make([]Segment, 0, 20)
}
s.values = append(s.values, t)
}
// AppendAll appends all elements of given segments after the tail of the collection.
func (s *Segments) AppendAll(t []Segment) {
if s.values == nil {
s.values = make([]Segment, 0, 20)
}
s.values = append(s.values, t...)
}
// Len returns the length of the collection.
func (s *Segments) Len() int {
if s.values == nil {
return 0
}
return len(s.values)
}
// At returns a segment at the given index.
func (s *Segments) At(i int) Segment {
return s.values[i]
}
// Set sets the given Segment.
func (s *Segments) Set(i int, v Segment) {
s.values[i] = v
}
// SetSliced replace the collection with a subsliced value.
func (s *Segments) SetSliced(lo, hi int) {
s.values = s.values[lo:hi]
}
// Sliced returns a subslice of the collection.
func (s *Segments) Sliced(lo, hi int) []Segment {
return s.values[lo:hi]
}
// Clear delete all element of the collection.
func (s *Segments) Clear() {
s.values = nil
}
// Unshift insert the given Segment to head of the collection.
func (s *Segments) Unshift(v Segment) {
s.values = append(s.values[0:1], s.values[0:]...)
s.values[0] = v
}

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