From: Eric Luo <eric.wenbl@...>
Date: 2005-06-29T09:58:22+09:00
Subject: Re: Ask for help about Regexp

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I want a GUI interface. when i give my input one by one. and I will get an=
=20
error message
if what I input is not compatible with my expected mask.
 I had tried to google the solution for this, but I find nothing.=20
Would you please to give me any solutuion or clue.
 Thanks

 On 6/28/05, Nikolai Weibull <mailing-lists.ruby-talk@rawuncut.elitemail.or=
g>=20
wrote:=20
>=20
> Eric Luo wrote:
>=20
> > I need to match my input dynamically by Regexp, For example: I want
> > match to this regexp: mask =3D /\d{10}tt\d{0, 5} then I give my input
> > byte by byte. And I want to be noticed at the first time when it is
> > impossible for me to match my input to the regexp mask. so if i input
> > 34789d, when I the input the character 'd', I will be noticed.
> >
> > I wonder if it's possible or not. if it is, how could I do that?
>=20
> Well, you can't easily do that. You could write a regex that matches
> valid prefixes of the strings of the language of the final regex, but
> that can become quite complicated. You should probably rethink your
> algorithm,
> nikolai
>=20
> --
> Nikolai Weibull: now available free of charge at http://bitwi.se/!
> Born in Chicago, IL USA; currently residing in Gothenburg, Sweden.
> main(){printf(&linux["\021%six\012\0"],(linux)["have"]+"fun"-97);}
>=20
>

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