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| author | Paul Eggert <eggert@cs.ucla.edu> | 2016-11-19 00:25:46 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-11-19 00:35:29 -0800 |
| commit | 641643e609c7cd4fd2898b3423d3c7ad3106f2e4 (patch) | |
| tree | 46b8debf06089d0d5c0251d6bf51100db15b87d1 /doc/grep.texi | |
| parent | 1569ee170b8eb3e5a03ca3d7d53e71fd05fd08e5 (diff) | |
| download | grep-641643e609c7cd4fd2898b3423d3c7ad3106f2e4.tar.gz | |
grep: -Pz no longer rejects ^, $
Problem reported by Stephane Chazelas (Bug#22655).
* NEWS: Document this.
* doc/grep.texi (grep Programs): Warn about -Pz.
* src/pcresearch.c (reflags): New static var.
(multibyte_locale): Remove static var; now local to Pcompile.
(Pcompile): Check for (? and (* too. Set reflags instead of
dying when problematic operators are found.
(Pexecute): Use reflags to decide whether searches should
be multiline.
* tests/pcre: Test new behavior.
Diffstat (limited to 'doc/grep.texi')
| -rw-r--r-- | doc/grep.texi | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/grep.texi b/doc/grep.texi index fcfad42e..ac821b47 100644 --- a/doc/grep.texi +++ b/doc/grep.texi @@ -1125,8 +1125,10 @@ expressions), separated by newlines, any of which is to be matched. @opindex --perl-regexp @cindex matching Perl-compatible regular expressions Interpret the pattern as a Perl-compatible regular expression (PCRE). -This is highly experimental and +This is highly experimental, particularly when combined with the +the @option{-z} (@option{--null-data}) option, and @samp{grep@ -P} may warn of unimplemented features. +@xref{Other Options}. @end table |