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#248 - 2

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This commit is contained in:
yuin 2021-10-16 18:48:59 +09:00
parent 2f8abf5949
commit f5dcbd8208
3 changed files with 16 additions and 77 deletions
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8
_test/extra.txt
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@ -488,3 +488,11 @@ _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>
//= = = = = = = = = = = = = = = = = = = = = = = =//

7
parser/fcode_block.go
View file

@ -87,8 +87,11 @@ func (b *fencedCodeBlockParser) Continue(node ast.Node, reader text.Reader, pc C
return Close
}
}
pos, padding := util.DedentPositionPadding(line, reader.LineOffset(), segment.Padding, fdata.indent)
pos, padding := util.IndentPositionPadding(line, reader.LineOffset(), segment.Padding, fdata.indent)
if pos < 0 {
pos = util.FirstNonSpacePosition(line)
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 {

78
util/util.go
View file

@ -151,30 +151,7 @@ func TabWidth(currentPos int) int {
// width=2 is in the tab character. In this case, IndentPosition returns
// (pos=1, padding=2)
func IndentPosition(bs []byte, currentPos, width int) (pos, padding int) {
if width == 0 {
return 0, 0
}
w := 0
l := len(bs)
i := 0
hasTab := false
for ; i < l; i++ {
if bs[i] == '\t' {
w += TabWidth(currentPos + w)
hasTab = true
} else if bs[i] == ' ' {
w++
} else {
break
}
}
if w >= width {
if !hasTab {
return width, 0
}
return i, w - width
}
return -1, -1
return IndentPositionPadding(bs, currentPos, 0, width)
}
// IndentPositionPadding searches an indent position with the given width for the given line.
@ -188,9 +165,9 @@ func IndentPositionPadding(bs []byte, currentPos, paddingv, width int) (pos, pad
i := 0
l := len(bs)
for ; i < l; i++ {
if bs[i] == '\t' {
if bs[i] == '\t' && w < width {
w += TabWidth(currentPos + w)
} else if bs[i] == ' ' {
} else if bs[i] == ' ' && w < width {
w++
} else {
break
@ -202,55 +179,6 @@ func IndentPositionPadding(bs []byte, currentPos, paddingv, width int) (pos, pad
return -1, -1
}
// DedentPosition dedents lines by the given width.
func DedentPosition(bs []byte, currentPos, width int) (pos, padding int) {
if width == 0 {
return 0, 0
}
w := 0
l := len(bs)
i := 0
for ; i < l; i++ {
if bs[i] == '\t' {
w += TabWidth(currentPos + w)
} else if bs[i] == ' ' {
w++
} else {
break
}
}
if w >= width {
return i, w - width
}
return i, 0
}
// DedentPositionPadding dedents lines by the given width.
// This function is mostly same as DedentPosition except this function
// takes account into additional paddings.
func DedentPositionPadding(bs []byte, currentPos, paddingv, width int) (pos, padding int) {
if width == 0 {
return 0, paddingv
}
w := 0
i := 0
l := len(bs)
for ; i < l; i++ {
if bs[i] == '\t' {
w += TabWidth(currentPos + w)
} else if bs[i] == ' ' {
w++
} else {
break
}
}
if w >= width {
return i - paddingv, w - width
}
return i - paddingv, 0
}
// IndentWidth calculate an indent width for the given line.
func IndentWidth(bs []byte, currentPos int) (width, pos int) {
l := len(bs)