From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: error in replace-match: "args out of range"
Date: Mon, 28 Mar 2011 11:38:53 -0400 [thread overview]
Message-ID: <jwvmxkfmf75.fsf-monnier+gnu.emacs.help@gnu.org> (raw)
In-Reply-To: mailman.3.1301227401.14102.help-gnu-emacs@gnu.org
> eval((replace-match head-text-nested t nil head-text 4))
There's your problem right there: replace-match operates on the
match-data "returned" (i.e. set up) by the previous regexp match.
Now regexp matches happen *all the time* in Emacs, so the match-data
gets changed continuously. So your above command will, maybe,
sometimes, operate on the match-data you want, but other times it will
operate on the match-data corresponding to some other regexp-match
you're not even aware of.
The only way to use replace-match reliably is to do it in the same piece
of code that did the regex-match and make sure nothing of importance
happens in between. Going back to the top-level is not "nothing of
importance" since it'll run various hooks, may run pending timers,
process filters, plus cause redisplay which may call font-lock, etc...
Stefan
next parent reply other threads:[~2011-03-28 15:38 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.3.1301227401.14102.help-gnu-emacs@gnu.org>
2011-03-28 15:38 ` Stefan Monnier [this message]
2011-03-28 18:50 ` error in replace-match: "args out of range" ken
2011-03-28 20:32 ` Stefan Monnier
2011-04-03 22:02 ` ken
2011-04-03 23:19 ` PJ Weisberg
2011-04-04 16:13 ` ken
[not found] ` <mailman.1.1301933608.12491.help-gnu-emacs@gnu.org>
2011-04-04 22:21 ` Tim X
2011-04-07 16:29 ` ken
[not found] ` <mailman.0.1302193756.25199.help-gnu-emacs@gnu.org>
2011-04-07 23:25 ` Tim X
2011-04-09 4:56 ` ken
2011-04-09 6:44 ` PJ Weisberg
2011-04-09 12:35 ` ken
[not found] ` <mailman.2.1302352549.29796.help-gnu-emacs@gnu.org>
2011-04-09 12:57 ` David Kastrup
2011-04-09 20:04 ` PJ Weisberg
2011-04-09 21:25 ` Perry Smith
2011-04-05 1:56 ` Stefan Monnier
2011-04-06 3:39 ` error in replace-match: "args out of range" [SOLVED] ken
2011-04-07 14:00 ` ken
2011-04-07 19:09 ` PJ Weisberg
[not found] ` <mailman.14.1302203359.27822.help-gnu-emacs@gnu.org>
2011-04-24 1:20 ` David Combs
2011-04-24 5:21 ` Stefan Monnier
2011-05-09 1:32 ` David Combs
[not found] ` <mailman.9.1302184849.3726.help-gnu-emacs@gnu.org>
2011-04-10 2:25 ` Stefan Monnier
2011-03-27 12:02 error in replace-match: "args out of range" ken
2011-03-27 18:25 ` ken
[not found] ` <mailman.3.1301250397.12231.help-gnu-emacs@gnu.org>
2011-03-27 19:07 ` Alan Mackenzie
2011-03-27 20:12 ` ken
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=jwvmxkfmf75.fsf-monnier+gnu.emacs.help@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=help-gnu-emacs@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.