Regex Cheat Sheet/Unicode-aware mode

Enable Unicode-aware parsing or matching.

Section: Flags and Modes

Unicode-aware mode

regex
regex
(?u)\b\p{L}+\b
Explanation

Exact syntax varies by engine, but the idea is to use Unicode classes safely.

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Ignore case
Enable case-insensitive matching.
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Multiline mode
Let `^` and `$` work per line.
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Dotall mode
Let dot match newlines.
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Extended / verbose mode
Allow whitespace and comments inside the regex.
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Scoped flags
Enable or disable flags for only part of a pattern.
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Unicode letter property
Match any Unicode letter.
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