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From: | Gregory Heytings |
Subject: | 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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