EmacsTips

Use "fly-mode" to give immediate indication of syntax errors

flymake-mode will indicate errors in source files. It runs when a buffer is loaded, after every newline, and after a configurable number of seconds have past. To have it handle SLAX files, add the following to your .emacs file:

(require 'flymake)

(defun flymake-slax-init ()
  (let* ((temp-file (flymake-init-create-temp-buffer-copy
                     'flymake-create-temp-inplace))
         (local-file (file-relative-name
                      temp-file
                      (file-name-directory buffer-file-name))))
    (list "slaxproc" (list "--check" local-file))))

(setq flymake-allowed-file-name-masks
      (cons '(".+\\.slax$"
              flymake-slax-init
              flymake-simple-cleanup
              flymake-get-real-file-name)
            flymake-allowed-file-name-masks))