2008-08-18 define-derived-mode

Maybe I should post little snippets from my `.emacs` every now and then. Here’s a simple use of DerivedMode and a basic introduction to FontLock.

(define-derived-mode campaign-wiki-mode fundamental-mode
  "Campaign"
  "Campaign Wiki stuff including Creole Markup and BBCode."
  (setq font-lock-defaults '(campaign-wiki-font-lock-keywords)))

(defvar campaign-wiki-font-lock-keywords
  '(("\\[b\\].*?\\[/b\\]" . 'bold)
    ("\\[i\\].*?\\[/i\\]" . 'italic)
    ("\\*\\*.*?\\*\\*" . 'bold)
    ("\\*.*?\\*" . 'bold)
    ("\\_</.*?/" . 'italic)
    ("|+=?" . font-lock-string-face)
    ("\\\\\\\\[ \t]+" . font-lock-warning-face))
  "Keywords for Campaign Wiki mode.")

This gives me very basic font-locking for Campaign Wiki texts which use a mix of WikiCreole and BBCode. It implements the following:

Campaign Wiki

BBCode

[b]bold[/b]
[i]italic[/i]

	
*bold**
	
bold*

/italic/
this/that/there is not italic
| foo
| bar
\\ followed by whitespace gets a warning

It’s not much, but it got me started.

​#Emacs

Comments

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⁂

Your .emacs always looked useful, it was always to confusing to tell what it did. Great idea to write small articles about it. Look forward to more.

– AaronHawley 2008-08-20 19:32 UTC

AaronHawley

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Cool. Let’s see how long I can keep it up! 😄

– Alex Schroeder 2008-08-21 08:31 UTC

Alex Schroeder