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I have a file (output from a program) that includes VT-100 escape sequences (colors, bold face, etc.). When I open the file in Fundamental mode, the escape sequences appear as are, and are not interpreted. How can display the file with the VT-100 sequences recognized as colors, etc?

sawa
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1 Answers1

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See https://unix.stackexchange.com/questions/19494/how-to-colorize-text-in-emacs

For example: put the following in your emacs init file:

(define-derived-mode fundamental-ansi-mode fundamental-mode "fundamental ansi"
  "Fundamental mode that understands ansi colors."
  (require 'ansi-color)
  (ansi-color-apply-on-region (point-min) (point-max)))

then run M-x fundamental-ansi-mode on the buffer with the escape sequences.

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Joost Diepenmaat
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  • This works mostly well, but it modifies the buffer. That'd be okay for my personal use case, except that I like to hit a random key and then `y` to revert the buffer. Also, auto-revert-mode is probably unusable. Any idea on how to fix these problems? For now I'm adding undo to the list of keystrokes. – interestedparty333 Aug 16 '15 at 14:31
  • Also, I find the following helpful for not having to manually enter fundamental-ansi-mode: (setq auto-mode-alist (cons '("\\.log\\'" . fundamental-ansi-mode) auto-mode-alist)) – interestedparty333 Aug 16 '15 at 14:32