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In AUCTex there is font-latex-math-face which makes color of string in between $ and $ as green.

Example output:

enter image description here

or:

enter image description here

Is is possible to disable/delete font-latex-math-face, where the green color won't apply?

Could be related to: How to delete a face

alper
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1 Answers1

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There is no built-in way to enable font lock inside a math environment, but you can prevent AUCTeX from recognizing the dollar as a math delimiter replacing the definition of font-latex-match-dollar-math with

(with-eval-after-load 'font-latex
  (defun font-latex-match-dollar-math (limit)
    nil))
matteol
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  • It made string color in between $$ all white which is now more difficult to read. is it possible to keep the normal coloring – alper May 13 '22 at 09:49
  • @alper see updated answer – matteol May 13 '22 at 16:50
  • Prefered color is default face I believe , where it also changes coloring text based on the key words like \mathrm should be blue and so on. I have put the color change in my question. Is it possible to keep the original face colors? – alper May 13 '22 at 19:14
  • @alper I think now I understand what you asked – matteol May 14 '22 at 06:24
  • I still see the font color in between dolar sign as green :-( – alper May 14 '22 at 20:21
  • Did you reload the tex buffer or executed font-lock-fontify-buffer in it after changing the definition? What is the output of C-h f font-latex-match-dollar-math? – matteol May 15 '22 at 05:37
  • Yes, I have run font-lock-fontify-buffer but no change occurs :-( It looks like unchanged: `font-latex-match-dollar-math is a native compiled Lisp function in ‘font-latex.el’.

    (font-latex-match-dollar-math LIMIT)

    Match inline math $...$ or display math $$...$$ before LIMIT. . I added the code piece in your answer at the bottom of my.emacs` file

     – alper May 15 '22 at 11:38
  • The function must be re-defined after loading the original definition, see updated answer – matteol May 16 '22 at 05:37
  • It worked this time. Thanks for your patience to help out. Small question could only the dolar sign be green color? – alper May 16 '22 at 08:18
  • I don't know, the approach of my answer is an hack, and quite ugly, it prevents AUCTeX from recognizing the dollar as a math delimiter,. I noticed that if you use \( and \) as delimiters instead of dollars the syntax highlighting is partially preserved – matteol May 16 '22 at 16:36
  • But I need dolar signs for the math format in the latex file, will \( \) cause the same affect as math format? – alper May 16 '22 at 20:36
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    https://tex.stackexchange.com/questions/510/are-and-preferable-to-dollar-signs-for-math-mode – matteol May 17 '22 at 05:46