Merge pull request #43 from moorereason/clean-lint

Clean lint

ast/ast.go

@@ -436,7 +436,7 @@ func Walk(n Node, walker Walker) error {
 	}
 	if status != WalkSkipChildren {
 		for c := n.FirstChild(); c != nil; c = c.NextSibling() {
-			if err := Walk(c, walker); err != nil {
+			if err = Walk(c, walker); err != nil {
 				return err
 			}
 		}

commonmark_test.go

@@ -6,8 +6,8 @@ import (
 	"testing"
 
 	. "github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 type commonmarkSpecTestCase struct {

extension/definition_list_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestDefinitionList(t *testing.T) {

extension/footnote_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestFootnote(t *testing.T) {

extension/strikethrough_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestStrikethrough(t *testing.T) {

extension/table.go

@@ -84,10 +84,10 @@ func (b *tableParagraphTransformer) parseRow(segment text.Segment, alignments []
 			closure = len(line[pos:])
 		}
 		node := ast.NewTableCell()
-		segment := text.NewSegment(segment.Start+pos, segment.Start+pos+closure)
-		segment = segment.TrimLeftSpace(source)
-		segment = segment.TrimRightSpace(source)
-		node.Lines().Append(segment)
+		seg := text.NewSegment(segment.Start+pos, segment.Start+pos+closure)
+		seg = seg.TrimLeftSpace(source)
+		seg = seg.TrimRightSpace(source)
+		node.Lines().Append(seg)
 		node.Alignment = alignment
 		row.AppendChild(row, node)
 		pos += closure + 1

extension/table_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestTable(t *testing.T) {

extension/tasklist_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestTaskList(t *testing.T) {

extension/typographer_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestTypographer(t *testing.T) {

fuzz/fuzz.go

@@ -2,11 +2,13 @@ package fuzz
 
 import (
 	"bytes"
+
 	"github.com/yuin/goldmark"
 	"github.com/yuin/goldmark/extension"
 	"github.com/yuin/goldmark/renderer/html"
 )
 
+// Fuzz runs automated fuzzing against goldmark.
 func Fuzz(data []byte) int {
 	markdown := goldmark.New(
 		goldmark.WithRendererOptions(

options_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	. "github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/parser"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestAttributeAndAutoHeadingID(t *testing.T) {

parser/attribute.go

@@ -2,9 +2,11 @@ package parser
 
 import (
 	"bytes"
+	"io"
+	"strconv"
+
 	"github.com/yuin/goldmark/text"
 	"github.com/yuin/goldmark/util"
-	"strconv"
 )
 
 var attrNameID = []byte("id")
@@ -104,7 +106,7 @@ func parseAttribute(reader text.Reader) (Attribute, bool) {
 	}
 	i := 0
 	for ; i < len(line); i++ {
-		c := line[i]
+		c = line[i]
 		if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
 			(c >= '0' && c <= '9') ||
 			c == '_' || c == ':' || c == '.' || c == '-') {
@@ -125,7 +127,6 @@ func parseAttribute(reader text.Reader) (Attribute, bool) {
 		return Attribute{}, false
 	}
 	return Attribute{Name: name, Value: value}, true
-
 }
 
 func parseAttributeValue(reader text.Reader) (interface{}, bool) {
@@ -153,7 +154,6 @@ func parseAttributeValue(reader text.Reader) (interface{}, bool) {
 		return nil, false
 	}
 	return value, true
-
 }
 
 func parseAttributeArray(reader text.Reader) ([]interface{}, bool) {
@@ -228,7 +228,7 @@ func parseAttributeString(reader text.Reader) ([]byte, bool) {
 	return nil, false
 }
 
-func scanAttributeDecimal(reader text.Reader, w *bytes.Buffer) {
+func scanAttributeDecimal(reader text.Reader, w io.ByteWriter) {
 	for {
 		c := reader.Peek()
 		if util.IsNumeric(c) {

parser/atx_heading.go

@@ -108,19 +108,19 @@ func (b *atxHeadingParser) Open(parent ast.Node, reader text.Reader, pc Context)
 		start--
 		closureClose := -1
 		closureOpen := -1
-		for i := start; i < stop; {
-			c := line[i]
-			if util.IsEscapedPunctuation(line, i) {
-				i += 2
-			} else if util.IsSpace(c) && i < stop-1 && line[i+1] == '#' {
-				closureOpen = i + 1
-				j := i + 1
-				for ; j < stop && line[j] == '#'; j++ {
+		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 = j
+				closureClose = k
 				break
 			} else {
-				i++
+				j++
 			}
 		}
 		if closureClose > 0 {

parser/code_span.go

@@ -43,7 +43,7 @@ func (s *codeSpanParser) Parse(parent ast.Node, block text.Reader, pc Context) a
 				}
 				closure := i - oldi
 				if closure == opener && (i+1 >= len(line) || line[i+1] != '`') {
-					segment := segment.WithStop(segment.Start + i - closure)
+					segment = segment.WithStop(segment.Start + i - closure)
 					if !segment.IsEmpty() {
 						node.AppendChild(node, ast.NewRawTextSegment(segment))
 					}

parser/html_block.go

@@ -2,11 +2,12 @@ package parser
 
 import (
 	"bytes"
+	"regexp"
+	"strings"
+
 	"github.com/yuin/goldmark/ast"
 	"github.com/yuin/goldmark/text"
 	"github.com/yuin/goldmark/util"
-	"regexp"
-	"strings"
 )
 
 var allowedBlockTags = map[string]bool{
@@ -97,12 +98,12 @@ var htmlBlockType7Regexp = regexp.MustCompile(`^[ ]{0,3}<(/)?([a-zA-Z0-9]+)(` +
 type htmlBlockParser struct {
 }
 
-var defaultHtmlBlockParser = &htmlBlockParser{}
+var defaultHTMLBlockParser = &htmlBlockParser{}
 
 // NewHTMLBlockParser return a new BlockParser that can parse html
 // blocks.
 func NewHTMLBlockParser() BlockParser {
-	return defaultHtmlBlockParser
+	return defaultHTMLBlockParser
 }
 
 func (b *htmlBlockParser) Trigger() []byte {
@@ -133,7 +134,7 @@ func (b *htmlBlockParser) Open(parent ast.Node, reader text.Reader, pc Context)
 		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[strings.ToLower(string(tagName))]
+		_, 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

parser/parser.go

@@ -903,7 +903,7 @@ retry:
 		if w > 3 && !bp.CanAcceptIndentedLine() {
 			continue
 		}
-		lastBlock := pc.LastOpenedBlock()
+		lastBlock = pc.LastOpenedBlock()
 		last := lastBlock.Node
 		node, state := bp.Open(parent, reader, pc)
 		if node != nil {
@@ -1177,5 +1177,4 @@ func (p *parser) parseBlock(block text.BlockReader, parent ast.Node, pc Context)
 	for _, ip := range p.closeBlockers {
 		ip.CloseBlock(parent, block, pc)
 	}
-
 }

parser/thematic_break.go

@@ -11,7 +11,7 @@ type thematicBreakPraser struct {
 
 var defaultThematicBreakPraser = &thematicBreakPraser{}
 
-// NewThematicBreakPraser returns a new BlockParser that
+// NewThematicBreakParser returns a new BlockParser that
 // parses thematic breaks.
 func NewThematicBreakParser() BlockParser {
 	return defaultThematicBreakPraser

renderer/renderer.go

@@ -1,14 +1,13 @@
-// Package renderer	renders the given AST to certain formats.
+// 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"
-
-	"sync"
 )
 
 // A Config struct is a data structure that holds configuration of the Renderer.

testutil/testutil.go

@@ -21,6 +21,7 @@ type TestingT interface {
 	FailNow()
 }
 
+// MarkdownTestCase represents a test case.
 type MarkdownTestCase struct {
 	No       int
 	Markdown string
@@ -30,6 +31,7 @@ type MarkdownTestCase struct {
 const attributeSeparator = "//- - - - - - - - -//"
 const caseSeparator = "//= = = = = = = = = = = = = = = = = = = = = = = =//"
 
+// DoTestCaseFile runs test cases in a given file.
 func DoTestCaseFile(m goldmark.Markdown, filename string, t TestingT) {
 	fp, err := os.Open(filename)
 	if err != nil {
@@ -86,12 +88,14 @@ func DoTestCaseFile(m goldmark.Markdown, filename string, t TestingT) {
 	DoTestCases(m, cases, t)
 }
 
+// DoTestCases runs a set of test cases.
 func DoTestCases(m goldmark.Markdown, cases []MarkdownTestCase, t TestingT) {
 	for _, testCase := range cases {
 		DoTestCase(m, testCase, t)
 	}
 }
 
+// DoTestCase runs a test case.
 func DoTestCase(m goldmark.Markdown, testCase MarkdownTestCase, t TestingT) {
 	var ok bool
 	var out bytes.Buffer

text/reader.go

@@ -1,10 +1,11 @@
 package text
 
 import (
-	"github.com/yuin/goldmark/util"
 	"io"
 	"regexp"
 	"unicode/utf8"
+
+	"github.com/yuin/goldmark/util"
 )
 
 const invalidValue = -1
@@ -138,7 +139,7 @@ func (r *reader) LineOffset() int {
 			if r.source[i] == '\t' {
 				v += util.TabWidth(v)
 			} else {
-				v += 1
+				v++
 			}
 		}
 		r.lineOffset = v - r.pos.Padding
@@ -355,7 +356,7 @@ func (r *blockReader) LineOffset() int {
 			if r.source[i] == '\t' {
 				v += util.TabWidth(v)
 			} else {
-				v += 1
+				v++
 			}
 		}
 		r.lineOffset = v - r.pos.Padding

util/util.go

@@ -631,7 +631,7 @@ func URLEscape(v []byte, resolveReference bool) []byte {
 		cob.Write(v[n:i])
 		stop := i + int(u8len)
 		if stop > len(v) {
-			i += 1
+			i++
 			n = i
 			continue
 		}