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## bug#48365: 13.0.11; Dollars in distinct comments trigger math mode highl

 From: jfbu Subject: bug#48365: 13.0.11; Dollars in distinct comments trigger math mode highlighting in text in-between Date: Tue, 11 May 2021 21:17:23 +0200

 Consider the following file:% -*- coding: utf-8; mode: latex; -*-% $\def\foo_with_underscore{}%%\def\foo_bar_foo_bar{}%$%The presence of the $sign in comments trigger math mode highlighting in between, as demonstrated in the attached screenshotThis happens in 13.0.11 (installed via Elpa) but did not happen at 12.2.0 and in fact I sticked with 12.2.0 for a long period because I had it still by accident on another computer where I had started lots of tex coding using very often$ in comments for some special reasons (it had another catcode) and when on my laptop which was with auctex from git I realized I could not work at all anymore because of this highlighting problem I simply rsync'ed from my other computer to my laptop as I had no time to devote to this issue. I thought perhaps the problem was with doctex-mode but today I see I can trigger it in latex-mode.git bisect indicates first bad commit iscommit 6654955216a42936b87f76dc346aad829b1d52fbDate:   Wed Jun 3 01:44:32 2020 +0900    Use search-based fontification for $...$ (bug#33139)Reading the commit message, I see there was extensive discussion and the change seems to have been discussed in depth and well-motivated. I wonder if you can confirm that you see the same at your locale as me.Possibly relevant to this in my config are (but I did not try to change them) '(font-latex-fontify-script (quote multi-level)) '(texmathp-search-n-paragraphs 0)For the latter I dimly recall it was an old issue I had in doctex with highlighting too but I don't recall the details and it might be something else whatsoever. (I think last week I did try removing this to see if it affected the present issue but it did not).