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fix: do not match too many characters when removing sourceMappingURL … #286

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merged 4 commits into from Sep 22, 2020
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fix: do not match too many characters when removing sourceMappingURL … #286

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d867e25
fix: do not match too many characters when removing sourceMappingURL …
schl3ck Sep 10, 2020
be26e4d
test(inline-option): don't break syntax when `devtool` is `eval-sourc…
schl3ck Sep 11, 2020
7a044cb
fix: sourceMappingURL regex matches whitespace and quotes after backs…
schl3ck Sep 11, 2020
e793510
test(inline-option): don't fail on correct multiline comment
schl3ck Sep 11, 2020
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2 changes: 1 addition & 1 deletion src/utils.js
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Expand Up @@ -87,7 +87,7 @@ ${
}

// Matches only the last occurrence of sourceMappingURL
const innerRegex = /\s*[#@]\s*sourceMappingURL\s*=\s*([^\s'"]*)\s*/;
const innerRegex = /\s*[#@]\s*sourceMappingURL\s*=\s*((?:[^\s'"\\]|\\[^n])*(?:\\n)?)\s*/;
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^n? Looks it is invalid

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@schl3ck schl3ck Sep 11, 2020 •
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The idea was to match everything except all whitespace, quotes and \n literally (not the line feed character), but not a backslash on its own. It works like a negative lookahead but consuming characters. Another possible solution would be .*?(?=[\s'"]|\\n)(?:\\n)?, which actually looks a lot more readable (instead of (?:[^\s'"\\]|\\[^n])*(?:\\n)?)

And I've just noticed that with the current regex the match wouldn't stop when it encounters a whitespace or quote after a backslash, but it would have done before. Also the test will fail, if it is in a multiline comment. I will work on a fix. Thanks for not letting this slip past!


/* eslint-disable prefer-template */
const sourceMappingURLRegex = RegExp(
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