emacs: Can I set compilation-error-regexp-alist in a mode hook fn?
- by Cheeso
I am trying to set the compilation-error-regexp-alist in a function that I add as a mode hook.
(defun cheeso-javascript-mode-fn ()
(turn-on-font-lock)
...bunch of other stuff
;; for JSLINT
(make-local-variable 'compilation-error-regexp-alist)
(setq compilation-error-regexp-alist
'(
("^[ \t]*\\([A-Za-z.0-9_: \\-]+\\)(\\([0-9]+\\)[,]\\( *[0-9]+\\))\\( Microsoft JScript runtime error\\| JSLINT\\): \\(.+\\)$" 1 2 3)
))
;;(make-local-variable 'compile-command)
(setq compile-command
(let ((file (file-name-nondirectory buffer-file-name)))
(concat "%windir%\\system32\\cscript.exe \\cheeso\\bin\\jslint.js " file)))
)
(add-hook 'javascript-mode-hook 'cheeso-javascript-mode-fn)
The mode hook runs. The various things I Set in the mode hook work. The compile-command gets set. But for some reason, the compilation-error-regexp-alist value doesn't take effect.
If I later do a M-x describe-variable on compilation-error-regexp-alist, it shows me the value I think it should have. But .. the errors in the compilation buffer don't get highlighted, and M-x next-error does not work.
If I add the error regexp value to the compilation-error-regexp-alist via setq-default, like this:
(setq-default compilation-error-regexp-alist
'(
... jslint regexp here ...
... many other regexp's here...
))
...then it works. The errors in the compilation buffer get properly highlighted and M-x next-error functions as expected.
