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9ceafb57
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2019-01-12T22:55:31
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regexec: use pcre as our fallback/builtin regex
Use PCRE 8.42 as the builtin regex implementation, using its POSIX
compatibility layer. PCRE uses ASCII by default and the users locale
will not influence its behavior, so its `regcomp` implementation is
similar to `regcomp_l` with a C locale.
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ce6d624a
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2019-05-19T10:30:04
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regex: optionally use PCRE2
Use PCRE2 and its POSIX compatibility layer if requested by the user.
Although PCRE2 is adequate for our needs, the PCRE2 POSIX layer as
installed on Debian and Ubuntu systems is broken, so we do not opt-in to
it by default to avoid breaking users on those platforms.
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69ecdad5
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2019-05-19T10:09:55
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regex: use system PCRE if available
Attempt to locate a system-installed version of PCRE and use its POSIX
compatibility layer, if possible.
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622166c4
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2019-05-18T19:37:59
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regex: disambiguate builtin vs system pcre
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c6e48fef
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2019-02-17T21:51:34
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regex: allow regex selection in cmake
Users can now select which regex implementation they want to use: one of
the system `regcomp_l`, the system PCRE, the builtin PCRE or the
system's `regcomp`.
By default the system `regcomp_l` will be used if it exists, otherwise
the system PCRE will be used. If neither of those exist, then the
builtin PCRE implementation will be used.
The system's `regcomp` is not used by default due to problems with
locales.
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02683b20
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2019-01-12T23:06:39
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regexec: prefix all regexec function calls with p_
Prefix all the calls to the the regexec family of functions with `p_`.
This allows us to swap out all the regular expression functions with our
own implementation. Move the declarations to `posix_regex.h` for
simpler inclusion.
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