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AsciiDoc: Some regexes are too greedy #3481

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merged 1 commit into from
Jun 25, 2022

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Fixes #3480.

We had a few regexes of the form /^(some prefix)(?:\r?\n|\r)(?:[\s\S]*(?:\r?\n|\r))??\1$/m. This is incorrect as the greedy [\s\S]* will overrun all occurrences of the captured prefix until the last occurrence is found. I replaced it with /^(some prefix)$[\s\S]*?^\1$/m.

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JS File Size Changes (gzipped)

A total of 1 files have changed, with a combined diff of -10 B (-0.6%).

file master pull size diff % diff
components/prism-asciidoc.min.js 1.62 KB 1.61 KB -10 B -0.6%

Generated by 🚫 dangerJS against 3c772e0

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Nice! My only nit would be to break up the large test file for readability but that's not a blocker.

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My only nit would be to break up the large test file for readability but that's not a blocker.

I see what you mean, but that was intentional. Regexes that are too greedy might come up again, and long test snippets are more likely to include examples that trigger these bugs.

@RunDevelopment RunDevelopment merged commit c4cbeea into PrismJS:master Jun 25, 2022
@RunDevelopment RunDevelopment deleted the issue3480 branch June 25, 2022 10:04
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Asciidoc processing fails on [source]
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