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That would lead to using unnecessary and expensive code paths in dfa.c.
* lib/localeinfo.c (using_simple_locale): Fix recently-introduced logic
error that would have made grep many times slower in the C locale.
With this change, and a file created like this:
yes 00 | head -10000000 > in
Running grep as follows becomes more than 40 times faster:
LC_ALL=C grep -Fw 0 in
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* lib/localeinfo.c (using_simple_locale): New function,
copied here from lib/dfa.c but with a change: it uses
strcoll for its heuristic, instead of using setlocale.
This lets it be thread-safe.
* lib/localeinfo.h (struct localeinfo): New member ‘simple’.
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* NEWS: Document this.
* lib/localeinfo.c (case_folded_counterparts):
First arg is now wint_t, not wchar_t. This generalizes the
function to also work on WEOF, where it returns 0.
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* build-aux/gendocs.sh (version):
* doc/gendocs_template:
* doc/gendocs_template_min:
* doc/gnulib.texi:
* lib/version-etc.c (COPYRIGHT_YEAR):
Update copyright dates by hand in templates and the like.
* all files: Run 'make update-copyright'.
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Since grep's DFA matcher is now being used by two gnulib-enabled
projects, grep and sed, it makes sense to version-control its
sources and unit tests in one place: here.
* modules/dfa: New module.
* modules/dfa-tests: New file.
* lib/dfa.c: New file, from grep.
* lib/dfa.h: Likewise.
* lib/localeinfo.c: Likewise.
* lib/localeinfo.h: Likewise.
* tests/dfa-match-aux.c: Likewise.
* tests/dfa-invalid-char-class.sh: Likewise.
* tests/dfa-match.sh: Likewise, with minor changes.
* MODULES.html.sh (Misc): Add "dfa" to this list.
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