bug#15773: grep-2.15 bug report

[Jim Meyering]

On Thu, Oct 31, 2013 at 8:36 PM, Jim Meyering <address@hidden> wrote:
> On Thu, Oct 31, 2013 at 2:55 PM, Jim Meyering <address@hidden> wrote:
>> On Thu, Oct 31, 2013 at 10:46 AM, Mirraz Mirraz <address@hidden> wrote:
>>>
>>> After updating from 2.14 to 2.15 grep has started to fail to match patterns
>>> that contain '\s*' or '\s\+'
>>> For example:
>>>
>>> (grep-2.14)
>>> $ echo '[ ]' | grep '\s*'
>>> [ ]
>>> $
>>>
>>> (grep-2.15)
>>> $ echo '[ ]' | grep '\s*'
>>> $
>>
>> Thank you for the report.
>> That is clearly a regression.  That is now the most compelling (of 3)
>> reasons to make a new release.
>
> Here's a preliminary patch.
> I'm about to write the test suite additions to accompany it:

And here's a proper patch, including NEWS and test suite additions:

k.txt
Description: Text document