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docs: clarify regex-lite word boundaries #1363

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BurntSushi merged 1 commit into from
Jun 6, 2026
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docs: clarify regex-lite word boundaries #1363

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2 changes: 2 additions & 0 deletions regex-lite/src/lib.rs
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Expand Up @@ -364,6 +364,8 @@ The precise set of differences at the syntax level:

* The Perl character classes are limited to ASCII codepoints. That is,
`\d` is `[0-9]`, `\s` is `[\t\n\v\f\r ]` and `\w` is `[0-9A-Za-z_]`.
* Word boundary assertions are also limited to ASCII codepoints. For example,
`\b` is defined in terms of `\w` which is itself ASCII-only.
* Unicode character classes of the form `\p{...}` and `\P{...}` are not
supported at all. Note though that things like `[^β]` are still supported and
will match any Unicode scalar value except for `β`.
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