GNU bug report logs - #5757
23.1; String literal parse problem in ruby-mode

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From: Rhett Sutphin <r-sutphin <at> northwestern.edu>
To: 5757 <at> debbugs.gnu.org
Subject: bug#5757: 23.1; String literal parse problem in ruby-mode
Date: Tue, 23 Mar 2010 11:21:10 -0500

ruby-mode will misunderstand a ruby double-quoted string literal which
contains a single quote and ends with a question mark.  It thinks that
the string literal is unterminated, which contaminates the syntax
highlighting for the remainder of the buffer.

Example ruby code which will demonstrate the problem:

["Is 'this' a string?"], [:something, :else]

If there's anything between the question mark and the terminating
double-quote, the string will be correctly interpreted.

Thanks,
Rhett Sutphin
rhett <at> detailedbalance.net


In GNU Emacs 23.1.1 (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
 of 2009-08-16 on black.local
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Ruby

Minor modes in effect:
  yas/global-mode: t
  yas/minor-mode: t
  auto-fill-function: do-auto-fill
  global-auto-revert-mode: t
  hi-lock-mode: t
  shell-dirtrack-mode: t
  hl-line-mode: t
  global-linum-mode: t
  linum-mode: t
  show-paren-mode: t
  nxhtml-global-minor-mode: t
  recentf-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<right> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <left> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <left>
<left> <right> <right> ' <right> <left> " <left> <left>
<left> <left> <right> <left> <right> <right> <left>
<left> <right> <right> <right> <left> <left> <left>
<left> <right> <right> <right> <right> <right> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <right>
<right> <right> <right> <right> <right> <left> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <left> <left>
<left> <backspace> <left> <left> <backspace> ' <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> , SPC
[ : a ] <left> <left> <left> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <backspace> <right>
<right> <right> <right> <right> ' <right> <right> <right>
<right> <right> <right> ' <backspace> <left> <left>
<left> <left> <left> <left> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> ' '
' ' ' ' ' ' ' ' ' ' ' <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> " <right> <right> <right> <right> <right>
<right> ? <backspace> <left> <left> <left> ? <down-mouse-1>
<mouse-1> M-x r e p o r t - e m <tab> <return>

Recent messages:
Auto-saving...done
Quit
Mark set
Undo! [6 times]
Quit
Auto-saving...done
Making completion list...
Quit
ruby-indent-to: invalid nest [2 times]
call-interactively: End of buffer

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