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refactor: render highlight language (#38793)

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Avoid CSS injection

More details are in the comment of CodeBlockAttributes
This commit is contained in:
wxiaoguang
2026-08-06 18:07:36 +08:00
committed by GitHub
parent 231ba1da19
commit 6ff3a65708
17 changed files with 112 additions and 56 deletions
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modules/markup/markdown/math/block_renderer.go
+4 -4
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@@ -15,11 +15,11 @@ import (
)
// Block render output:
// <pre class="code-block is-loading"><code class="language-math display">...</code></pre>
// <pre class="code-block is-loading"><code class="language-math">...</code></pre>
//
// Keep in mind that there is another "code block" render in "func (r *GlodmarkRender) highlightingRenderer"
// Keep in mind that there is another "code block" render in "func (r *GoldmarkRender) highlightingRenderer"
// "highlightingRenderer" outputs the math block with extra "chroma" class:
// <pre class="code-block is-loading"><code class="chroma language-math display">...</code></pre>
// <pre class="code-block is-loading"><code class="chroma language-math">...</code></pre>
//
// Special classes:
// * "is-loading": show a loading indicator
@@ -51,7 +51,7 @@ func (r *BlockRenderer) writeLines(w util.BufWriter, source []byte, n gast.Node)
func (r *BlockRenderer) renderBlock(w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
n := node.(*Block)
if entering {
codeHTML := giteaUtil.Iif[template.HTML](n.Inline, "", `<pre class="code-block is-loading">`) + `<code class="language-math display">`
codeHTML := giteaUtil.Iif[template.HTML](n.Inline, "", `<pre class="code-block is-loading">`) + `<code class="language-math">`
_, _ = w.WriteString(string(r.renderInternal.ProtectSafeAttrs(codeHTML)))
r.writeLines(w, source, n)
} else {