GNU bug report logs - #15625
24.2.50; ebnf2ps generates bad postscript when ebnf-production-name-p is nil

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Glenn Morris <rgm <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#15625: closed (24.2.50; ebnf2ps generates bad postscript when
 ebnf-production-name-p is nil)
Date: Tue, 22 Oct 2013 00:49:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Mon, 21 Oct 2013 20:48:29 -0400
with message-id <yt1u3e871e.fsf <at> fencepost.gnu.org>
and subject line Re: bug#15625: 24.2.50; ebnf2ps generates bad postscript when ebnf-production-name-p is nil
has caused the debbugs.gnu.org bug report #15625,
regarding 24.2.50; ebnf2ps generates bad postscript when ebnf-production-name-p is nil
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
15625: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15625
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Michael Gauland <mikelygee <at> amuri.net>
To: <bug-gnu-emacs <at> gnu.org>
Subject: 24.2.50; ebnf2ps generates bad postscript when
 ebnf-production-name-p is nil
Date: Wed, 16 Oct 2013 10:09:54 +1300

[Message part 3 (text/plain, inline)]

When ebnf-production-name-p is nil, ebnf-eps-buffer should generate a 
diagram without the production name.

Instead, it generates an invalid file; evince hangs when trying to open 
it.

I believe the approporiate fix is to modfiy the BOP function in the 
postscript file to drop the prodcution name when it is blank.

The attached dribble file (started with emacs -Q), demonstrates:
1. Loading ebnf2ps
2. Writing a grammar rule.
3. Running ebnf-eps-buffer to generate ebnf--sequence.eps; this file is 
valid.
4. Setting ebnf-production-name-p to nil.
5. Running ebnf-eps-buffer again; now ebnf--sequence.eps is invalid.
6. Modifying ebnf2ps.el as described above.
7. Reloading ebfn2ps.el.
8. Running ebnf-eps-buffer yet again; now ebnf--sequence.eps is valid, 
and correctly omits the production name from the diagram.

I've also tested this on GNU Emacs 23.4.1 (i486-pc-linux-gnu, GTK+ 
Version 2.24.10) on Debian stable.
Kind Regards,
Mike Gauland


In GNU Emacs 24.2.50.1 (i386-mingw-nt6.1.7601)
 of 2012-08-25 on YAMALOK
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (4.7) --cflags -m32 -O2 -g0 -march=prescott
 -mtune=prescott -pipe -IC:/gnuwin32/emacs/include
 -IC:/gnuwin32/emacs/lib -IC:/gnuwin32/src -IC:/gnutls/include
 -IC:/gnutls/lib -IC:/gnutls/bin -IC:/libxml2/include -IC:/libxml2/lib
 -IC:/libxml2/bin --ldflags '

Important settings:
  value of $LANG: ENZ
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down-mouse-1> <mouse-1> M-x r e p o r t - e m <tab>
<return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 
mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel dos-w32 disp-table ls-lisp w32-win w32-vars
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer button faces cus-face files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget 
hashtable-print-readable
backquote make-network-process multi-tty emacs)

[ebnf-dribble (application/octet-stream, attachment)]

[Message part 5 (message/rfc822, inline)]

From: Glenn Morris <rgm <at> gnu.org>
To: 15625-done <at> debbugs.gnu.org
Subject: Re: bug#15625: 24.2.50;
 ebnf2ps generates bad postscript when ebnf-production-name-p is nil
Date: Mon, 21 Oct 2013 20:48:29 -0400

Version: 24.4

Thanks; patch applied.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.