From: Pandora <pubsynx7hye@pacbell.net>
Subject: perl-mode "::" as word character [patch]
Date: Fri, 29 Apr 2005 23:47:18 -0700 [thread overview]
Message-ID: <427329F6.5080508@pacbell.net> (raw)
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Just dropping in for a teeny bit. I was studying font-lock innards the
other day and noticed that the perl-mode font lock does a lot of
wrangling around the '::' sequence. That's what's used in perl to
divide package names from package members. But instead of sticking
\\(::\\sw\\)*s in after every \\sw, I noticed it'd be much simpler just
to consider the double colon (NOT the single colon) to be a \\sw
character. Seems pretty cut and dried, since :: was only introduced to
perl as a namespace separator, and can be wholly considered as if it
were a word character.
Also since my experience has been that print/printf are used like
keywords, but act like functions; they could use some special
highlighting. As for functions in general, both &\\(\\sw+\\) and
\\(\\sw+\\)( match a function name in perl, but perl-mode only
highlights the first expression as a function.
So... I went and made a patch against CVS, in case anyone else wants to
use these three quick little hacks.
Index: lisp/progmodes/perl-mode.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/progmodes/perl-mode.el,v
retrieving revision 1.56
diff -r1.56 perl-mode.el
207a208
> ;; Fontify print and printf as functions, typically w/o ()
208a210,211
> '("\\<\\(print\\|printf\\)\\>" 1 font-lock-function-name-face)
>
210c213,214
< '("&\\(\\sw+\\(::\\sw+\\)*\\)" 1 font-lock-function-name-face)
- ---
> '("&\\(\\sw+\\)" 1 font-lock-function-name-face)
> '("\\(\\sw+\\)\\s *(" 1 font-lock-function-name-face)
213,214c217,218
< '("[$*]{?\\(\\sw+\\(::\\sw+\\)*\\)" 1 font-lock-variable-name-face)
< '("\\([@%]\\|\\$#\\)\\(\\sw+\\(::\\sw+\\)*\\)"
- ---
> '("[$*]{?\\(\\sw+\\)" 1 font-lock-variable-name-face)
< '("\\([@%]\\|\\$#\\)\\(\\sw+\\(::\\sw+\\)*\\)"
- ---
> '("[$*]{?\\(\\sw+\\)" 1 font-lock-variable-name-face)
> '("\\([@%]\\|\\$#\\)\\(\\sw+\\)"
258a263,264
> ;; Or $PKG::member :: is a word character, really. c.c
> ("\\(::\\)" (1 "w"))
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next reply other threads:[~2005-04-30 6:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-30 6:47 Pandora [this message]
2005-05-01 16:44 ` perl-mode "::" as word character [patch] Stefan Monnier
2005-05-06 1:19 ` Pandora
2005-05-06 3:02 ` Stefan Monnier
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