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fix(markdown): stop currency dollars rendering as KaTeX inline math (#5132)

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mashallow
2026-07-11 20:45:57 +07:00
committed by GitHub
parent 7f3fd77121
commit b571c7ddc1
2 changed files with 48 additions and 4 deletions
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static/js/markdown.js
+5 -2
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@@ -661,8 +661,11 @@ export function mdToHtml(src, opts) {
return placeholder;
} catch (e) { return match; }
});
// Inline math: $...$ (not preceded/followed by $ or digit, not spanning multiple lines)
s = s.replace(/(?<!\$)\$(?!\$)([^\$\n]+?)\$(?!\$)/g, (match, math) => {
// Inline math: $...$ — single line only, and Pandoc-style delimiter rules so
// currency doesn't render as math ("$5 to $10"): the opening $ must be
// immediately followed by a non-space, the closing $ must be immediately
// preceded by a non-space and not followed by a digit.
s = s.replace(/(?<![\$\d])\$(?!\$)(?=\S)([^\$\n]+?)(?<=\S)\$(?!\$|\d)/g, (match, math) => {
try {
const raw = math.replace(/&amp;/g, '&').replace(/&lt;/g, '<').replace(/&gt;/g, '>');
const placeholder = `___MATH_BLOCK_${mathBlocks.length}___`;