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Refactor RegExps to avoid the possibility of polynomial backtracking (fixes #657).

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David Anson 2024-10-05 18:07:45 -07:00
parent 9b1840a5a4
commit e0219411c6
8 changed files with 14 additions and 16 deletions
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2
lib/md020.js
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@ -22,7 +22,7 @@ module.exports = {
for (const [ lineIndex, line ] of lines.entries()) {
if (!ignoreBlockLineNumbers.has(lineIndex + 1)) {
const match =
/^(#+)([ \t]*)([^#]*?[^#\\])([ \t]*)((?:\\#)?)(#+)(\s*)$/.exec(line);
/^(#+)([ \t]*)([^# \t\\]|[^# \t][^#]*?[^# \t\\])([ \t]*)((?:\\#)?)(#+)(\s*)$/.exec(line);
if (match) {
const [
,