GNU bug report logs - #63225
Compiling regexp patterns (and REGEXP_CACHE_SIZE in search.c)

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Package: emacs;

Reported by: Ihor Radchenko <yantar92 <at> posteo.net>

Date: Tue, 2 May 2023 07:35:02 UTC

Severity: normal

Tags: patch

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Message #71 received at 63225 <at> debbugs.gnu.org (full text, mbox):

From: Mattias Engdegård <mattias.engdegard <at> gmail.com>
To: Ihor Radchenko <yantar92 <at> posteo.net>
Cc: 63225 <at> debbugs.gnu.org
Subject: Re: bug#63225: Compiling regexp patterns (and REGEXP_CACHE_SIZE in
 search.c)
Date: Sun, 7 May 2023 14:45:36 +0200

[Message part 1 (text/plain, inline)]
5 maj 2023 kl. 18.26 skrev Mattias Engdegård <mattias.engdegard <at> gmail.com>:

> Stupid printf-debugging actually, nothing fancier than that.

Here is some of that stupidity I promised. You probably want to use it with

  (set-regexp-trace-file "re.log")
  (unwind-protect
      (do-something-interesting)
    (set-regexp-trace-file nil))

so that you don't trace more than necessary. The file may become large, but it's useful data for off-line analysis, scripted or just looking at it in an editor.
The first letter of each line indicates a regexp cache hit (H) or miss (M).


[0003-Regexp-tracing-add-set-regexp-trace-file.patch (application/octet-stream, attachment)]
This bug report was last modified 2 years and 37 days ago.

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