1.7] BUG - GREP slows to a crawl with large number of matches on a single file

[Eric Blake]

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According to Cooper, Karl (US SSA) on 11/6/2009 6:48 AM:
>> like LC_ALL=C grep or LC_ALL=C sed where possible. Please try this. 
> 
> I don't have Cygwin 1.5 for comparison, but the testcase provided does show grep using a long time on *my* Cygwin 1.7.
> And LC_ALL=C didn't seem to help:

LC_ALL=C still selects UTF-8 charset.  That's probably the culprit.  Try
LC_ALL=C.ASCII, to force the issue of a one-byte charset.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9@byu.net
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