Re: random color of variables in programming languages

[Luca Ferrari]

On Fri, Dec 20, 2013 at 2:36 AM, Emanuel Berg <embe8573@student.uu.se> wrote:
> Luca Ferrari <fluca1978@infinito.it> writes:
>
>> any suggestion on where to start (in elisp code) for
>> variable font face?
>
> Cool dump: http://user.it.uu.se/~embe8573/colvar.png
>
> (save-excursion
>   (require 'thingatpt) ; word-at-point
>   (if (search-forward-regexp "defvar " (point-max) t)
>       (let*((var-name (word-at-point))
>             (color-code (car (string-to-list var-name)))
>             (the-face (if (= color-code 114) ; if it starts with 'r'
>                      'font-lock-warning-face ; use this face
>                      'font-lock-variable-face)) )
>         (font-lock-add-keywords
>          'emacs-lisp-mode
>          `((,var-name . ,the-face)))
>         (emacs-lisp-mode) ))) ; <-- hit this
>
> (defvar red 1)
> (defvar another-variable 4)
>
> (if (= red 1) t nil)

Very good example, thanks.

Luca