bug#18266: grep -P and invalid exits with error

[Santiago]

El 16/08/14 a las 11:36, Paul Eggert escribió:
> Santiago wrote:
> >Another solution would be to don't check if binary files are valid
> >(passing PCRE_NO_UTF8_CHECK to pcre_exec), but I don't know if that'd
> >avoid security holes
> 
> It wouldn't.  (We already tried it.)
> 

Another try. This patch is by far more efficient.
With the previous patch #1:

 % time grep -P faz /usr/bin/*                                            
 ...
 grep: /usr/bin/X11: Es un directorio
 grep -P faz /usr/bin/*  519,78s user 0,32s system 99% cpu 8:41,19 total

 With this one:

  % time src/grep -P faz /usr/bin/*
  src/grep -P faz /usr/bin/*  7,36s user 0,33s system 99% cpu 7,695 total

Cheers,

Santiago

grep-pcresearch-clean-utf8-2.patch
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