GNU bug report logs - #46859
28.0.50; [PATCH]: Add option to truncate long lines in xref.el

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Message #125 received at 46859 <at> debbugs.gnu.org (full text, mbox):

From: Gregory Heytings <gregory <at> heytings.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 46859 <at> debbugs.gnu.org
Subject: Re: bug#46859: 28.0.50; [PATCH]: Add option to truncate long lines
 in xref.el
Date: Thu, 04 Mar 2021 17:35:42 +0000

>> I don't know anything about ISO-2022, but tried with a 25 MB file, 
>> created with iconv, which Emacs recognizes as an iso-2022-7bit-dos one. 
>> In that case filepos-to-bufferpos does not work at all, with 
>> 'approximate you get a position that is about 2 million characters away 
>> from the correct one, and with 'best or nil you get nil...
>
> Not 'best, 'exact.  Did you try 'exact?  It should have worked, barring 
> any bugs.
>

Sorry for mixing things up.  Just tried 'exact, it works, it's slow (but 
not horribly slow: 1.2 seconds on that 25 MB file), but it doesn't give 
the correct answer alas, it's about ~1000 characters away from the correct 
position.

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