Re: Regex is not being as "hungry" as it is supposed to

["Andreas Röhler" <andreas.roehler@easy-emacs.de>]

Am 06.08.2010 06:04, schrieb Deniz Dogan:
> 2010/8/6 suvayu ali<fatkasuvayu+linux@gmail.com>:
>> Hi everyone,
>>
>> I have a strange problem, recently some of my regexps started becoming
>> less "hungry" than usual. For example I have a file like this,
>>
>>   #1 153030 120 = 423988
>>   #2 152845 181 = 1500234
>>   #3 155160 247 = 767821
>>   #4 155160 310 = 11131347
>>   #5 155160 319 = 13979167
>>
>> I wanted to remove the 3rd column of numbers along with the = sign. So
>> I called `query-replace-regexp' with this regexp replacement,
>>
>> `[0-9]+ = ->'
>>
>> But this matches the numbers like this,
>>
>> 120 =
>> 1 =
>> 7 =
>> 0 =
>> 9 =
>>
>> where as I am expecting it to be this,
>>
>> 120 =
>> 181 =
>> 247 =
>> 310 =
>> 319 =
>>
>> This is just one instance, I have faced similar other cases. I get the
>> proper expected match only for the first match, for the subsequent
>> matches the regexp becomes less "hungry".
>>
>> Is this a consequence of some conflicting settings or a possible bug?
>> I see this behaviour with GNU Emacs 24.0.50.1, emacs-snapshot from an
>> Ubuntu Lucid ppa and emacs compiled from source on Fedora 12. (but the
>> settings are identical for both these setups)
>>
>> Thanks in advance for any comments/hints about this issue. :)
>>
>> --
>> Suvayu
>>
>> Open source is the future. It sets us free.
>>
>>
>
> That's weird, it happens to me to on:
> GNU Emacs 24.0.50.1 (i386-mingw-nt6.1.7600) of 2010-07-12 on 3249CTO
>
> I noticed two things when tinkering around with this problem.
>
> 1. M-x re-builder correctly highlights the portions we both expect.
> 2. It's only the *highlighting* in query-replace-regexp that
>     fails. When performing the actual replacing, it works just as
>     expected.
>
> I'm sensing that this is a bug of some sort and you should report it.
>

same at

GNU Emacs 23.1.92.1 (i686-pc-linux-gnu, GTK+ Version 2.12.0) of 2010-02-19

replacement works as desribed, just the highlighting fails.