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bug#7735: A questing mark at the end of a string in ruby-mode
From: |
Stefan Monnier |
Subject: |
bug#7735: A questing mark at the end of a string in ruby-mode |
Date: |
Mon, 24 Jan 2011 14:49:35 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
> A question mark at the end of a string makes ruby-mode believe the
> string does not end there.
Indeed, when I switched to syntax-propertize-rules code, I didn't notice
that one of the regexps use backrefs, which aren't supported by
syntax-propertize-rules.
I've just installed the patch below which should fix it,
Stefan
=== modified file 'lisp/progmodes/ruby-mode.el'
--- lisp/progmodes/ruby-mode.el 2011-01-16 02:21:30 +0000
+++ lisp/progmodes/ruby-mode.el 2011-01-24 19:47:16 +0000
@@ -1121,14 +1121,13 @@
(syntax-propertize-rules
;; #{ }, #$hoge, #@foo are not comments
("\\(#\\)[{$@]" (1 "."))
- ;; the last $', $", $` in the respective string is not variable
- ;; the last ?', ?", ?` in the respective string is not ascii code
- ("\\(^\\|[\[
\t\n<+\(,=]\\)\\(['\"`]\\)\\(\\\\.\\|\\2\\|[^'\"`\n\\\\]\\)*?\\\\?[?$]\\(\\2\\)"
- (2 "\"")
- (4 "\""))
;; $' $" $` .... are variables
;; ?' ?" ?` are ascii codes
- ("\\(^\\|[^\\\\]\\)\\(\\\\\\\\\\)*[?$]\\([#\"'`]\\)" (3 "."))
+ ("\\([?$]\\)[#\"'`]"
+ (1 (unless (save-excursion
+ ;; Not within a string.
+ (nth 3 (syntax-ppss (match-beginning 0))))
+ (string-to-syntax "\\"))))
;; regexps
("\\(^\\|[=(,~?:;<>]\\|\\(^\\|\\s
\\)\\(if\\|elsif\\|unless\\|while\\|until\\|when\\|and\\|or\\|&&\\|||\\)\\|g?sub!?\\|scan\\|split!?\\)\\s
*\\(/\\)[^/\n\\\\]*\\(\\\\.[^/\n\\\\]*\\)*\\(/\\)"
(4 "\"/")