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Improve math rendering (#36124)

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Fix #36108
Fix #36107
This commit is contained in:
wxiaoguang 2025-12-10 23:49:24 +08:00 committed by GitHub
parent ed698d1a61
commit 1c69fdccdd
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GPG Key ID: B5690EEEBB952194
2 changed files with 16 additions and 2 deletions
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10
modules/markup/markdown/markdown_math_test.go
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@ -30,6 +30,10 @@ func TestMathRender(t *testing.T) {
"$ a $",
`<p><code class="language-math">a</code></p>` + nl,
},
{
"$a$$b$",
`<p><code class="language-math">a</code><code class="language-math">b</code></p>` + nl,
},
{
"$a$ $b$",
`<p><code class="language-math">a</code> <code class="language-math">b</code></p>` + nl,
@ -59,7 +63,7 @@ func TestMathRender(t *testing.T) {
`<p>a$b $a a$b b$</p>` + nl,
},
{
"a$x$",
"a$x$", // Pattern: "word$other$" The real world example is: "Price is between US$1 and US$2.", so don't parse this.
`<p>a$x$</p>` + nl,
},
{
@ -70,6 +74,10 @@ func TestMathRender(t *testing.T) {
"$a$ ($b$) [$c$] {$d$}",
`<p><code class="language-math">a</code> (<code class="language-math">b</code>) [$c$] {$d$}</p>` + nl,
},
{
"[$a$](link)",
`<p><a href="/link" rel="nofollow"><code class="language-math">a</code></a></p>` + nl,
},
{
"$$a$$",
`<p><code class="language-math">a</code></p>` + nl,

8
modules/markup/markdown/math/inline_parser.go
View File

@ -54,6 +54,10 @@ func isAlphanumeric(b byte) bool {
return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || (b >= '0' && b <= '9')
}
func isInMarkdownLinkText(block text.Reader, lineAfter []byte) bool {
return block.PrecendingCharacter() == '[' && bytes.HasPrefix(lineAfter, []byte("]("))
}
// Parse parses the current line and returns a result of parsing.
func (parser *inlineParser) Parse(parent ast.Node, block text.Reader, pc parser.Context) ast.Node {
line, _ := block.PeekLine()
@ -115,7 +119,9 @@ func (parser *inlineParser) Parse(parent ast.Node, block text.Reader, pc parser.
}
// check valid ending character
isValidEndingChar := isPunctuation(succeedingCharacter) || isParenthesesClose(succeedingCharacter) ||
succeedingCharacter == ' ' || succeedingCharacter == '\n' || succeedingCharacter == 0
succeedingCharacter == ' ' || succeedingCharacter == '\n' || succeedingCharacter == 0 ||
succeedingCharacter == '$' ||
isInMarkdownLinkText(block, line[i+len(stopMark):])
if checkSurrounding && !isValidEndingChar {
break
}