;;; perl-mode.el --- Perl code editing commands for GNU Emacs
-;; Copyright (C) 1990, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+;; Copyright (C) 1990, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
;; Free Software Foundation, Inc.
;; Author: William F. Mann
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; <file*glob>
(defvar perl-font-lock-syntactic-keywords
;; TODO: here-documents ("<<\\(\\sw\\|['\"]\\)")
- '(;; Turn POD into b-style comments
+ `(;; Turn POD into b-style comments
("^\\(=\\)\\sw" (1 "< b"))
("^=cut[ \t]*\\(\n\\)" (1 "> b"))
;; Catch ${ so that ${var} doesn't screw up indentation.
("\\$ ?{?^?[_a-zA-Z][_a-zA-Z0-9]*\\('\\)[_a-zA-Z]" (1 "_"))
;; format statements
("^[ \t]*format.*=[ \t]*\\(\n\\)" (1 '(7)))
- ;; Funny things in sub arg specifications like `sub myfunc ($$)'
+ ;; Funny things in `sub' arg-specs like `sub myfun ($)' or `sub ($)'.
;; Be careful not to match "sub { (...) ... }".
- ("\\<sub[[:space:]]+[^{}[:punct:][:space:]]+[[:space:]]*(\\([^)]+\\))"
+ ("\\<sub\\(?:[[:space:]]+[^{}[:punct:][:space:]]+\\)?[[:space:]]*(\\([^)]+\\))"
1 '(1))
- ;; Regexp and funny quotes.
- ("\\(?:[?:.,;=!~({[]\\|\\(^\\)\\)[ \t\n]*\\(/\\)"
+ ;; Regexp and funny quotes. Distinguishing a / that starts a regexp
+ ;; match from the division operator is ...interesting.
+ ;; Basically, / is a regexp match if it's preceded by an infix operator
+ ;; (or some similar separator), or by one of the special keywords
+ ;; corresponding to builtin functions that can take their first arg
+ ;; without parentheses. Of course, that presume we're looking at the
+ ;; *opening* slash. We can mis-match the closing ones, because they are
+ ;; treated separately later in
+ ;; perl-font-lock-special-syntactic-constructs.
+ (,(concat "\\(?:\\(?:\\(?:^\\|[^$@&%[:word:]]\\)"
+ (regexp-opt '("split" "if" "unless" "until" "while" "split"
+ "grep" "map" "not" "or" "and"))
+ "\\)\\|[?:.,;=!~({[]\\|\\(^\\)\\)[ \t\n]*\\(/\\)")
(2 (if (and (match-end 1)
(save-excursion
(goto-char (match-end 1))
- (skip-chars-backward " \t\n")
+ ;; Not 100% correct since we haven't finished setting up
+ ;; the syntax-table before point, but better than nothing.
+ (forward-comment (- (point-max)))
+ (put-text-property (point) (match-end 2)
+ 'jit-lock-multiline t)
(not (memq (char-before)
'(?? ?: ?. ?, ?\; ?= ?! ?~ ?\( ?\[)))))
nil ;; A division sign instead of a regexp-match.
(while (< (point) limit)
(cond
((or (null (setq char (nth 3 state)))
- (and (char-valid-p char) (eq (char-syntax (nth 3 state)) ?\")))
+ (and (characterp char) (eq (char-syntax (nth 3 state)) ?\")))
;; Normal text, or comment, or docstring, or normal string.
nil)
((eq (nth 3 state) ?\n)
:type 'integer
:group 'perl)
-;; Is is not unusual to put both perl-indent-level and
+;; Is is not unusual to put both things like perl-indent-level and
;; cperl-indent-level in the local variable section of a file. If only
;; one of perl-mode and cperl-mode is in use, a warning will be issued
-;; about the variable. Autoload this here, so that no warning is
+;; about the variable. Autoload these here, so that no warning is
;; issued when using either perl-mode or cperl-mode.
;;;###autoload(put 'perl-indent-level 'safe-local-variable 'integerp)
+;;;###autoload(put 'perl-continued-statement-offset 'safe-local-variable 'integerp)
+;;;###autoload(put 'perl-continued-brace-offset 'safe-local-variable 'integerp)
+;;;###autoload(put 'perl-brace-offset 'safe-local-variable 'integerp)
+;;;###autoload(put 'perl-brace-imaginary-offset 'safe-local-variable 'integerp)
+;;;###autoload(put 'perl-label-offset 'safe-local-variable 'integerp)
(defcustom perl-continued-statement-offset 4
"*Extra indent for lines not starting new statements."