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authorLudovic Courtes2007-07-04 20:35:23 +0000
committerLudovic Courtes2007-07-04 20:35:23 +0000
commit2ae08bbb4f7906cb61648ab577bb77acfb6523a9 (patch)
tree2ae737e1f45b44e70f80426d0dd05c99b3defb44 /src/guile/skribilo/source/c-lex.l
parent46122eb2392f848079320e09eda8b747dc9a4177 (diff)
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Renamed the `coloring' module tree to `source' for consistency.
git-archimport-id: skribilo@sv.gnu.org--2006/skribilo--devo--1.2--patch-134
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diff --git a/src/guile/skribilo/source/c-lex.l b/src/guile/skribilo/source/c-lex.l
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+;;; c-lex.l -- C fontifier for Skribilo.
+;;;
+;;; Copyright 2004 Erick Gallesio - I3S-CNRS/ESSI <eg@essi.fr>
+;;; Copyright 2007 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This program is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 2 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program; if not, write to the Free Software
+;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+;;; USA.
+
+space [ \n\9]
+letter [_a-zA-Z]
+alphanum [_a-zA-Z0-9]
+
+%%
+
+;; Strings
+\"[^\"]*\" (new markup
+ (markup '&source-string)
+ (body yytext))
+;; Comments
+;; FIXME: We shouldn't exclude `/' from comments but we do so to match the
+;; shortest multi-line comment.
+/\*(\n|[^/])*\*/ (let* ((not-line (char-set-complement (char-set #\newline)))
+ (lines (string-tokenize yytext not-line)))
+ (reverse!
+ (pair-fold (lambda (line* result)
+ (let* ((line (car line*))
+ (last? (null? (cdr line*)))
+ (markup
+ (new markup
+ (markup '&source-line-comment)
+ (body line))))
+ (if last?
+ (cons markup result)
+ (cons* (string #\newline)
+ markup result))))
+ '()
+ lines)))
+
+//.* (new markup
+ (markup '&source-line-comment)
+ (body yytext))
+
+;; Identifiers (only letters since we are interested in keywords only)
+[_a-zA-Z]+ (let* ((ident (string->symbol yytext))
+ (tmp (memq ident (*the-keys*))))
+ (if tmp
+ (new markup
+ (markup '&source-module)
+ (body yytext))
+ yytext))
+
+;; Regular text (excluding `/' and `*')
+[^\"a-zA-Z/*]+ (begin yytext)
+
+;; `/' and `*' alone.
+/[^\*] (begin yytext)
+\*[^/] (begin yytext)
+
+
+<<EOF>> 'eof
+<<ERROR>> (skribe-error 'c-fontifier "Parse error" yytext)