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Groups > comp.lang.c > #99898

Re: gcc needs a curly bracket matching/counting function

From Robert Spanjaard <spamtrap@arumes.com>
Newsgroups comp.lang.c
Subject Re: gcc needs a curly bracket matching/counting function
Date 2016-12-20 11:46 +0100
Organization Aioe.org NNTP Server
Message-ID <o3b260$13sb$1@gioia.aioe.org> (permalink)
References <o3a201$nfs$1@dont-email.me> <o3a38b$qhp$1@dont-email.me> <o3a8if$1rg$1@dont-email.me>

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On 20-12-16 04:30, DFS wrote:
> On 12/19/2016 08:59 PM, Richard Heathfield wrote:
>> On 20/12/16 01:38, DFS wrote:
>>> This would potentially help a lot.
>>>
>>> I had ONE extraneous closing curly bracket } in place in a function, and
>>> gcc -Wall threw 60+ warnings and errors.
>>
>> This is actually quite a tricky problem for a compiler. But it's
>> relatively easy for an editor.
>
>
> Counting open and close {} brackets is of course very easy for a
> compiler.  A count mismatch would generate an error.
>
> Pointing out where the mismatch occurs is more difficult, as you say,
> but I just had an epiphany.  I'm gonna try to code it right now.
>
> It seems kind of easy in my mind.  Which means it will probably turn out
> to be a mess.

Counting the brackets for a mismatch is easy (don't forget to ignore
brackets in chars, strings and comments though), finding the mismatch in
random code is very hard. However, if you teach yourself to indent your code
in a standard way, you can check if opening and closing brackets with the
same amount of indentation match. In your example, you can see that the
inner most closing bracket is not preceded by an opening bracket with the
same indentation.

-- 
Robert Spanjaard

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Thread

gcc needs a curly bracket matching/counting function DFS <nospam@dfs.com> - 2016-12-19 20:38 -0500
  Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 01:59 +0000
    Re: gcc needs a curly bracket matching/counting function DFS <nospam@dfs.com> - 2016-12-19 22:30 -0500
      Re: gcc needs a curly bracket matching/counting function Robert Spanjaard <spamtrap@arumes.com> - 2016-12-20 11:46 +0100
      Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 13:20 +0000
        Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 13:30 +0000
        Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-20 05:35 -0800
          Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-21 12:07 +0100
            Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-21 12:46 +0000
              Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-21 15:10 +0100
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-21 17:10 +0000
                Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-21 19:50 +0100
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-21 20:15 +0000
                Re: gcc needs a curly bracket matching/counting function Ike Naar <ike@iceland.freeshell.org> - 2016-12-21 22:36 +0000
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-21 23:46 +0000
                Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-22 01:54 +0000
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-22 12:16 +0000
                Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-22 13:06 +0000
                Re: gcc needs a curly bracket matching/counting function asetofsymbols@gmail.com - 2016-12-22 05:25 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-22 13:34 +0000
                Re: gcc needs a curly bracket matching/counting function asetofsymbols@gmail.com - 2016-12-22 08:16 -0800
                Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-22 09:30 -0800
                Re: gcc needs a curly bracket matching/counting function luser droog <luser.droog@gmail.com> - 2016-12-22 09:40 -0800
                Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-22 05:33 -0800
                Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-22 05:41 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-22 14:53 +0000
                Re: gcc needs a curly bracket matching/counting function asetofsymbols@gmail.com - 2016-12-22 08:11 -0800
                Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-22 08:27 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-22 16:48 +0000
                Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-22 09:27 -0800
                Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-22 20:12 +0000
                Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-22 12:18 -0800
              Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-21 09:04 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-21 17:24 +0000
                Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-21 09:41 -0800
                Re: gcc needs a curly bracket matching/counting function Ian Collins <ian-news@hotmail.com> - 2016-12-22 18:10 +1300
                Re: gcc needs a curly bracket matching/counting function Ian Collins <ian-news@hotmail.com> - 2016-12-29 14:50 +1300
                Re: gcc needs a curly bracket matching/counting function Tim Rentsch <txr@alumni.caltech.edu> - 2017-01-02 02:07 -0800
                Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2017-01-02 11:16 +0100
                Re: gcc needs a curly bracket matching/counting function Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-28 16:40 -0800
            Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-21 08:52 -0800
              Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-21 20:16 +0100
                Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-22 09:41 +0100
      Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-20 17:04 +0000
        Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 18:46 +0000
          Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-20 21:55 +0000
        Re: gcc needs a curly bracket matching/counting function DFS <nospam@dfs.com> - 2016-12-20 13:52 -0500
          Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 19:09 +0000
          Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 19:14 +0000
            Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 12:16 -0800
              Re: gcc needs a curly bracket matching/counting function Gareth Owen <gwowen@gmail.com> - 2016-12-20 20:53 +0000
                Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 13:51 -0800
                Re: gcc needs a curly bracket matching/counting function Gareth Owen <gwowen@gmail.com> - 2016-12-29 18:49 +0000
                Re: gcc needs a curly bracket matching/counting function Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-28 16:36 -0800
                Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-29 12:44 +0100
              Re: gcc needs a curly bracket matching/counting function bart4858@gmail.com - 2016-12-20 13:25 -0800
                Re: gcc needs a curly bracket matching/counting function Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-20 13:39 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 21:58 +0000
                Re: gcc needs a curly bracket matching/counting function Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-20 14:05 -0800
                Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-20 22:17 +0000
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2017-01-26 19:03 +0000
                Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 14:31 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 23:21 +0000
                Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 15:51 -0800
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-21 00:38 +0000
                Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2017-01-26 19:11 +0000
    Re: gcc needs a curly bracket matching/counting function mark.bluemel@gmail.com - 2016-12-20 00:50 -0800
  gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-19 18:11 -0800
    Re: gcc needs a curly bracket matching/counting function fir <profesor.fir@gmail.com> - 2016-12-20 03:00 -0800
      Re: gcc needs a curly bracket matching/counting function Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-20 03:50 -0800
        Re: gcc needs a curly bracket matching/counting function fir <profesor.fir@gmail.com> - 2016-12-20 05:20 -0800
    Re: gcc needs a curly bracket matching/counting function DFS <nospam@dfs.com> - 2016-12-20 13:46 -0500
      Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 18:59 +0000
      Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 19:02 +0000
        Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 12:13 -0800
          Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 20:25 +0000
      Re: gcc needs a curly bracket matching/counting function Robert Spanjaard <spamtrap@arumes.com> - 2016-12-20 20:35 +0100
  Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-20 08:56 +0100
  Re: gcc needs a curly bracket matching/counting function Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-20 02:26 -0800
    Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 10:41 +0000
      Re: gcc needs a curly bracket matching/counting function Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-20 02:52 -0800
        Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 11:00 +0000
          Re: gcc needs a curly bracket matching/counting function Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-20 03:19 -0800
            Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 11:31 +0000
            Re: gcc needs a curly bracket matching/counting function Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-20 17:21 +0000
              Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 17:49 +0000
                Re: gcc needs a curly bracket matching/counting function David Brown <david.brown@hesbynett.no> - 2016-12-21 12:25 +0100
                Re: gcc needs a curly bracket matching/counting function Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-29 01:14 -0800
    Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 09:07 -0800
      Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 17:14 +0000
        Re: gcc needs a curly bracket matching/counting function Keith Thompson <kst-u@mib.org> - 2016-12-20 09:33 -0800
          Re: gcc needs a curly bracket matching/counting function Richard Heathfield <rjh@cpax.org.uk> - 2016-12-20 17:39 +0000
          Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-20 09:45 -0800
      Re: gcc needs a curly bracket matching/counting function gazelle@shell.xmission.com (Kenny McCormack) - 2016-12-20 17:56 +0000
        Re: gcc needs a curly bracket matching/counting function "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-12-20 10:01 -0800
    Re: gcc needs a curly bracket matching/counting function Ian Collins <ian-news@hotmail.com> - 2016-12-21 07:44 +1300
  Re: gcc needs a curly bracket matching/counting function BartC <bc@freeuk.com> - 2016-12-20 10:46 +0000
  Re: gcc needs a curly bracket matching/counting function Ike Naar <ike@iceland.freeshell.org> - 2016-12-20 22:00 +0000
    Re: gcc needs a curly bracket matching/counting function Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-28 16:39 -0800
  Re: gcc needs a curly bracket matching/counting function Ken Brody <kenbrody@spamcop.net> - 2016-12-22 12:12 -0500
  Re: gcc needs a curly bracket matching/counting function Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2016-12-22 12:59 -0700
  Re: gcc needs a curly bracket matching/counting function Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-28 16:10 -0800

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