Groups > comp.compilers > #2003

Re: Regular expression string searching & matching

From	Ben Hanson <jamin.hanson@googlemail.com>
Newsgroups	comp.compilers
Subject	Re: Regular expression string searching & matching
Date	2018-03-13 14:23 -0700
Organization	Compilers Central
Message-ID	<18-03-059@comp.compilers> (permalink)
References	(1 earlier) <18-03-032@comp.compilers> <18-03-034@comp.compilers> <18-03-035@comp.compilers> <18-03-041@comp.compilers> <18-03-050@comp.compilers>

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On Tuesday, 13 March 2018 19:33:53 UTC, Hans-Peter Diettrich  wrote:
> > State: 0
> >    [/] -> 1
> >
> > State: 1
> >    [*] -> 2
> >
> > State: 2
> >    [^*] -> 2
> >    [*] -> 3
>
> I'm just curious about the notation.
> What happens if neither pattern matches?
> What's the purpose of [^*] in state 2, as opposed to state 1?

In state 2 you are either looping on [^*] (anything other than '*') or changing state to state 3 on '*'.

I'm not sure I understand your question.

Regards,

Ben

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Thread

Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-04 01:37 -0800
  Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-07 11:53 -0800
    Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-07 12:18 -0800
    Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-08 22:53 -0800
      Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-10 00:57 -0800
        Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-11 13:52 -0700
          Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-12 14:00 -0700
            Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-13 11:30 -0700
              Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-17 16:52 -0700
              Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-18 19:23 +0000
              Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-20 17:23 +0000
                Re: Regular expression string searching & matching Clint O <clint.olsen@gmail.com> - 2018-03-22 17:46 +0000
          Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-12 15:46 -0700
          Re: Regular expression string searching & matching Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2018-03-13 10:53 +0100
            Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-13 14:23 -0700
      Re: Regular expression string searching & matching Ben Hanson <jamin.hanson@googlemail.com> - 2018-03-10 03:17 -0800

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