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[debbugs-tracker] bug#15625: closed (24.2.50; ebnf2ps generates bad post

From: GNU bug Tracking System
Subject: [debbugs-tracker] 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

Your message dated Mon, 21 Oct 2013 20:48:29 -0400
with message-id <address@hidden>
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

15625: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15625
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 24.2.50; ebnf2ps generates bad postscript when ebnf-production-name-p is nil Date: Wed, 16 Oct 2013 10:09:54 +1300 User-agent: Roundcube Webmail/0.5.3 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 (i386-mingw-nt6.1.7601)
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Attachment: ebnf-dribble
Description: Binary data

--- End Message ---
--- Begin Message --- 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 User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)
Version: 24.4

Thanks; patch applied.

--- End Message ---

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