GNU bug report logs - #14455
24.3.50; semantic-symref + cscope is problematic

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Jambunathan K <kjambunathan <at> gmail.com>
Subject: bug#14455: closed (Re: bug#14455: 24.3.50; semantic-symref +
 cscope is problematic)
Date: Fri, 15 Nov 2013 03:52:02 +0000

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Your bug report

#14455: 24.3.50; semantic-symref + cscope is problematic

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 14455 <at> debbugs.gnu.org.

-- 
14455: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=14455
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Jambunathan K <kjambunathan <at> gmail.com>
To: 14455-done <at> debbugs.gnu.org
Subject: Re: bug#14455: 24.3.50; semantic-symref + cscope is problematic
Date: Tue, 01 Jan 2002 05:54:42 +0530

I have a local fix that works for me.  So closing it.

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From: Jambunathan K <kjambunathan <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; semantic-symref + cscope is problematic
Date: Fri, 24 May 2013 00:42:59 +0530

STEP 1: Create cscope xref
======

$ cd ~/src/emacs/trunk/src (This is a Bzr checkout)
$ find . -name '*.[ch]' > cscope.files
$ cscope -b

$ ls -al cscope.*
-rw-r--r-- 1 kjambunathan kjambunathan    2159 May 24 00:20 cscope.files
-rw-r--r-- 1 kjambunathan kjambunathan 8346136 May 24 00:20 cscope.out

STEP 2: Enable semantic
======

emacs -Q

Tools->Source code parsers(Semantic)->ON

STEP 3: Visit some C file in Emacs src.  Make sure cscope is used as symref tool
======

C-x C-f ~/src/emacs/trunk/src/buffer.c

STEP 4: Lookup definition of `set_interval_object'
======

C-c , J 

The above command would have loaded symref tool.  Make sure cscope
(and not grep) is the one that is used.

M-: (semantic-symref-calculate-rootdir)
    => "/home/kjambunathan/src/emacs/trunk/src/"

M-: (semantic-symref-detect-symref-tool)
    => cscope

STEP 5: Position the cursor over `INTERVAL' in it's signature
======

static void
set_interval_object (INTERVAL i, Lisp_Object obj)
                         ^
                         |
                         |
C-c , J


STEP 6: Expected Behaviour
======

I expect that 'INTTERVAL' be offered at the prompt.  Note the bug. `INTERVAL' is a symbol right.

Just type INTERVAL out.  Now semantic refuses to proceed ahead saying no match.


STEP 7:  Check that the native cscope looks up INTERVAL just fine.
=====

$ cscope
$ C-n (Cursor should be in Find this global definition)
$ Type out INTERVAL

cscope will take you to lisp.h with cursor at

     typedef struct interval *INTERVAL;


STEP 8: Can semantic do the right thing when I lookup INTERVAL?
======


----------------------------------------------------------------


In GNU Emacs 24.3.50.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2013-05-20 on debian-6.05
Bzr revision: 112643 mituharu <at> math.s.chiba-u.ac.jp-20130520031520-pq1c1qjertan94kq
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
Important settings:
  value of $LANG: en_IN
  locale-coding-system: iso-latin-1-unix
  default enable-multibyte-characters: t

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