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Re: Convert string to C expression syntax

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On Wednesday, July 31, 2013 8:28:38 AM UTC+5:30, nilay wrote:
> Hi,
> 
> I want to do the following,
> 
> 
> 
> ==========================================
> 
> int main(int argc, char *argv[])
> 
> {
> 
> 
> 
>     ...
> 
>     ...
> 
>     if (*argv[1]) 
> 
>     {
> 
>       ...
> 
>     }
> 
> 
> 
>     ...
> 
> }
> 
> ==========================================
> 
> 
> 
> as i tried to show above, I want to pass a filter condition
> 
> at command-line input. And I want to convert that input string
> 
> to 'if-condition expression' so that it can be used in the program.
> 
> How can it be done?? I am struggling very hard to get it right.
> 
> 
> 
> Thank you.
> 
> -- Nilay
> 
> -- 
> 
> comp.lang.c.moderated - moderation address: clcm@plethora.net -- you must
> 
> have an appropriate newsgroups line in your header for your mail to be seen,
> 
> or the newsgroup name in square brackets in the subject line.  Sorry.

You should use switch case here - if argument is NUMERIC, If its a string then you can look for if else go with strncmp/memcmp.
-- 
comp.lang.c.moderated - moderation address: clcm@plethora.net -- you must
have an appropriate newsgroups line in your header for your mail to be seen,
or the newsgroup name in square brackets in the subject line.  Sorry.

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Convert string to C expression syntax nilay <nilaybhatt@gmail.com> - 2013-07-30 21:58 -0500
  Re: Convert string to C expression syntax James Kuyper <jameskuyper@verizon.net> - 2013-07-31 21:22 -0500
  Re: Convert string to C expression syntax Barry Schwarz <schwarzb@dqel.com> - 2013-07-31 21:22 -0500
    Re: Convert string to C expression syntax Keith Thompson <kst-u@mib.org> - 2013-08-01 12:58 -0500
      Re: Convert string to C expression syntax Ike Naar <ike@ukato.freeshell.org> - 2013-08-01 21:05 -0500
        Re: Convert string to C expression syntax Keith Thompson <kst-u@mib.org> - 2013-08-02 18:34 -0500
  Re: Convert string to C expression syntax gordonb.uvkjx@burditt.org (Gordon Burditt) - 2013-07-31 21:22 -0500
  Re: Convert string to C expression syntax Roberto Waltman <usenet@rwaltman.com> - 2013-08-05 11:24 -0500
  Re: Convert string to C expression syntax malcolm.mclean5@btinternet.com - 2013-09-02 04:09 -0500
  Re: Convert string to C expression syntax "Paul D. DeRocco" <pderocco@ix.netcom.com> - 2013-09-06 23:25 -0500
    Re: Convert string to C expression syntax James Kuyper <jameskuyper@verizon.net> - 2013-09-11 17:27 -0500
      Re: Convert string to C expression syntax "Paul D. DeRocco" <pderocco@ix.netcom.com> - 2013-09-12 11:34 -0500
      Re: Convert string to C expression syntax Francis Glassborow <francis.glassborow@btinternet.com> - 2013-09-12 11:38 -0500
  Re: Convert string to C expression syntax Nitin Tripathi <2nitintr@gmail.com> - 2013-09-11 17:31 -0500

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