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Re: error in replace-match: "args out of range"

From: Alan Mackenzie
Subject: Re: error in replace-match: "args out of range"
Date: Sun, 27 Mar 2011 19:07:49 +0000 (UTC)
User-agent: tin/1.6.2-20030910 ("Pabbay") (UNIX) (FreeBSD/4.11-RELEASE (i386))

Hi, Ken.

ken <address@hidden> wrote:
> On 03/27/2011 08:02 AM ken wrote:
>> replace-match works fine in a couple instances in one function, but this
>> instance (in the same function) it doesn-- 't.  I get the error msg below
>> about the arguments being out of range.  I'm guessing the problem is
>> with the 4th arg, the one beginning: #("<a ... yes?  There's a lot of
>> "(fontified ..." cruft in it... is that confusing replace-match...?  Or
>> might I have just the totally wrong type arg there?

>> Debugger entered--Lisp error: (args-out-of-range -1 -1)
>>   replace-match("Text for Heading" t nil #("<a
>> name=\"Testing-TOC-Header\"></a>" 0 1 (fontified t face
>> font-lock-function-name-face) 1 2 (fontified t face html-tag-face) 2 3
>> (fontified t) 3 8 (fontified t face font-lock-variable-name-face) 8 9
>> (fontified t face font-lock-string-face) 9 27 (fontified t face
>> font-lock-string-face) 27 28 (fontified t face font-lock-string-face) 28
>> 29 (fontified t face font-lock-function-name-face) 29 30 (fontified t
>> face font-lock-function-name-face) 30 32 (fontified t face
>> html-tag-face) 32 33 (fontified t face font-lock-function-name-face)) 4)
>>   eval((replace-match head-text-nested t nil head-text 4))

> Still groping for a resolution....   Here's something that might be
> relevant.

> The immediately preceding re-search-forward was successful.  However,
> the subexpression which matched (#4) is a null string, i.e., "".  So the
> question: Will replace-match replace an empty string with specified
> text...? in effect *inserting* text at the location of the specified
> (albeit nil) subexpression?

You'll be far more likely to get help if you give some basic details.
WhIch Emacs version are you using (M-x emacs-version)?  What major mode
are you in?  What minor modes (if any) are active?  What did you ACTUALLY
DO (exactly which keys did you press) to cause the error.  Can you make
the error happen in a small enough buffer to post?  If so, do it!

The idea is to help somebody reproduce the error with the minimum amount
of work.

Incidentally, there's a section on bug reporting in the Emacs Manual on
page "Bugs".  To get to it, do C-h i, m emacs, g bugs.

Alan Mackenzie (Nuremberg, Germany).

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