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From: Nordlöw <per.nordlow@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Problem when optimizing font-lock-keywords
Date: Tue, 21 Oct 2008 07:06:13 -0700 (PDT)	[thread overview]
Message-ID: <86864f7e-d948-4d9c-b554-589cb1f9b660@y21g2000hsf.googlegroups.com> (raw)

I am trying to optimize my extra calls to font-lock-add-keywords() by
concatenating the MATCHERs like follows:

(defun pnw-fancy/sh-mode-font-locking ()
  "Fancy Shell Script Syntax Highlighting."
  (font-lock-add-keywords
   nil
   (list
    (cons (concat  "\\((\\|)\\)" "?"
                  "\\(\\[\\|]\\|{\\|}\\)" "?"
                  "\\(,\\|;\\)")
          '((1 'font-lock-parens-face keep)
            (2 'font-lock-braces-face keep)
            (3 'font-lock-separator-face keep)))
    )
   t))
(add-hook 'sh-mode-hook 'pnw-fancy/sh-mode-font-locking t)

I believe this idea is used in emacs-lisp-mode() but I can't make it
work --- I get the error:
Error during redisplay: (error No match 1 in highlight (1 (quote font-
lock-parens-face) keep)) [5 times]

What have I missed?

Many thanks in advance,
Nordlöw


             reply	other threads:[~2008-10-21 14:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-21 14:06 Nordlöw [this message]
2008-10-21 21:26 ` Problem when optimizing font-lock-keywords Nikolaj Schumacher

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