fix: include single nested parens in emStrong link mask (#3475)

markedjs · Oct 15, 2024 · 2b7efa8 · 2b7efa8
1 parent b1fd3ea
commit 2b7efa8
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diff --git a/src/rules.ts b/src/rules.ts
@@ -175,7 +175,7 @@ const punctuation = edit(/^((?![*_])[\spunctuation])/, 'u')
   .replace(/punctuation/g, _punctuation).getRegex();
 
 // sequences em should skip over [title](link), `code`, <html>
-const blockSkip = /\[[^[\]]*?\]\([^\(\)]*?\)|`[^`]*?`|<[^<>]*?>/g;
+const blockSkip = /\[[^[\]]*?\]\((?:\\.|[^\\\(\)]|\((?:\\.|[^\\\(\)])*\))*\)|`[^`]*?`|<[^<>]*?>/g;
 
 const emStrongLDelim = edit(/^(?:\*+(?:((?!\*)[punct])|[^\s*]))|^_+(?:((?!_)[punct])|([^\s_]))/, 'u')
   .replace(/punct/g, _punctuation)

diff --git a/test/specs/new/underscore_link.html b/test/specs/new/underscore_link.html
@@ -0,0 +1 @@
+<p><em><a href="https://example.com?link=with_(underscore)">test</a></em></p>
diff --git a/test/specs/new/underscore_link.md b/test/specs/new/underscore_link.md
@@ -0,0 +1 @@
+_[test](https://example.com?link=with_(underscore))_