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Fix unicode Regex miscounting emoji length #2942

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merged 1 commit into from
Aug 15, 2023

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calculuschild
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@calculuschild calculuschild commented Aug 14, 2023

Description

Many emojis are 2+ unicode chars long. The \u tag which allows searching for punctuation also counts emojis as single chars, which throws off character count when slicing strings. Spreading the strings into an array restores the correct character count. There is probably some overhead slowdown but not that I can detect.

Eventually the \v regex tag (in Node 20) can replace\u to get an accurate char count natively.

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Many emojis are 2+ unicode bytes long. The \u tag which allows searching for punctuation also counts emojis as single chars. Slicing the strings into an array restores the correct character count.
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@UziTech UziTech linked an issue Aug 14, 2023 that may be closed by this pull request
@UziTech UziTech merged commit f3af23e into markedjs:master Aug 15, 2023
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github-actions bot pushed a commit that referenced this pull request Aug 15, 2023
## [7.0.3](v7.0.2...v7.0.3) (2023-08-15)

### Bug Fixes

* Fix unicode Regex miscounting emoji length ([#2942](#2942)) ([f3af23e](f3af23e))
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Improper emoji rendering with v5.1.0
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