[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Documentation on debugging regexp performance
|
From: |
Clément Pit--Claudel |
|
Subject: |
Re: Documentation on debugging regexp performance |
|
Date: |
Thu, 21 Jan 2016 11:38:16 -0500 |
|
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 |
On 01/21/2016 06:42 AM, Wolfgang Jenkner wrote:
> On Thu, Jan 21 2016, Clément Pit--Claudel wrote:
>
>> I'm running into a surprising regular expressions issue. I have attached a
>> file (~50k) in which (re-search-forward " +[^:=]+ +:=?") seems to be
>> extremely slow. (I killed it after 30 seconds). Truncating the file to its
>> first 20 lines reduces the time for re-search-forward to about a second,
>> which is still extremely slow.
>
> Perhaps you meant
>
> (re-search-forward " +[^:=\n]+ +:=?")
I don't think so; I do want newlines in there.
signature.asc
Description: OpenPGP digital signature