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Replace current regex engine with PCRE2 #4033

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wants to merge 1 commit into from
Closed

Replace current regex engine with PCRE2 #4033

wants to merge 1 commit into from

Commits on Feb 3, 2024

  1. Replace OpenBSD regex library with PCRE2. 

    PCRE2 has way better performance than the OpenBSD
library (something around 20 times faster).

The following flags are enabled for every pattern:

- PCRE2_UTF
- PCRE2_MATCH_INVALID_UTF
- PCRE2_NO_UTF_CHECK

All the others are optional.

Changes made:

- Adds PCRE2 as subproject.
- Changes the API away from POSIX to PCRE2.
- Edits many regex patterns because:
 - ' ' is skipped in patterns, if the EXTENDED flag is set for matching. '\s' must be set now.
 - '.' doesn't match newlines by default.
- Changes the API so matches and their groups are bundled into PVectors.
- Moves the regex component to rz_util.
    @Rot127
    Rot127 committed Feb 3, 2024
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