* Enhancing font-locking in emacs-lisp-mode
@ 2008-06-05 19:37 Nordlöw
2008-06-05 22:02 ` Nikolaj Schumacher
0 siblings, 1 reply; 2+ messages in thread
From: Nordlöw @ 2008-06-05 19:37 UTC (permalink / raw)
To: help-gnu-emacs
Hi again!
Some thoughts regarding enhancements of font-locking in emacs-lisp-
mode; I believe the readability of emacs-lisp code would be greatly
enhanced by also highlighting the following cases
- arguments to function/macro definition (defun/defmacro) in font-lock-
variable-name-face
- local variable names defined by the let/let* statement
- function name part of function calls: I guess this is hard/
(impossible?) to get right for all cases but maybe we could somehow
reuse `functionp' in the MATCHER to better filter out the more
relevant cases?
Does anyone have any tips on how to go about implementing this. For
the second case I believe I have to use a function matcher in font-
lock-keywords that navigates in the sub-expression structure (forward/
backward-sexp, backward-up-list, down-list). I now know how regexp-
MATCHERs work. Does anyone have any good tutorial on how to design
these function-MATCHERS?
Is it adviced to solve this as an add-on or is it best to let the GNU
Emacs hackers add this functionality to lisp-mode.el?
/Nordlöw
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Enhancing font-locking in emacs-lisp-mode
2008-06-05 19:37 Enhancing font-locking in emacs-lisp-mode Nordlöw
@ 2008-06-05 22:02 ` Nikolaj Schumacher
0 siblings, 0 replies; 2+ messages in thread
From: Nikolaj Schumacher @ 2008-06-05 22:02 UTC (permalink / raw)
To: Nordlöw; +Cc: help-gnu-emacs
Nordlöw <per.nordlow@gmail.com> wrote:
> - function name part of function calls: I guess this is hard/
> (impossible?) to get right for all cases but maybe we could somehow
> reuse `functionp' in the MATCHER to better filter out the more
> relevant cases?
Something like this...?
(font-lock-add-keywords emacs-lisp-mode
(eval-when-compile
'(("\\_<\\(?:\\s_\\|\\sw\\)+\\_>"
(0 (let ((symbol (intern (match-string 0))))
(cond
((macrop symbol) 'font-lock-macro-name-face)
((fboundp symbol) 'font-lock-function-name-face)
((or (boundp symbol) (facep symbol))
'font-lock-variable-name-face))))))))
(font-lock-macro-name-face is a face defined by me.)
Let me know when you make any progress. I'm very interested. :)
regards,
Nikolaj Schumacher
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2008-06-05 19:37 Enhancing font-locking in emacs-lisp-mode Nordlöw
2008-06-05 22:02 ` Nikolaj Schumacher
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