From: Daniel N <has.sox@...>
Date: 2007-03-28T10:07:57+09:00
Subject: Re: String Intersection. A better way

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On 3/28/07, Timothy Hunter <TimHunter@nc.rr.com> wrote:
>
> Daniel N wrote:
> > Hi all,
> >
> > I have an issue with strings.  I want the intesection of two strings
> > but I'm
> > not sure how to go about it.  I have two cases.
> >
> > Case 1:
> > String 1 has the tail end intersecting with the start of string 2..  eg:
> >
> > String 1: The quick brown fox jumped over the lazy dog.
> > String 2: fox jumped over the lazy dog.  And in other news bla bla bla
> >
> > The problem is I don't know how much is intersecting.
> > What I've done is to take string 1 and say psudo code
> >
> > until match found
> >   string2 =~ /^(value of string1)/
> >   if match found set flag
> >   else delete first char of string1
> > loop again
> >
> > What is a better way to do this?
> >
> > Case 2:
> >
> > The start of String1 intersects with the end of string2  eg:
> >
> > String1:   And here we are with another string.
> > String2:   bla bla bla.   And here we are
> >
> > I don't really know about this one yet...  I haven't gotten to it.
> >
> > Can anyone pls suggest what I might do?
> >
> > Thanx
> > Daniel
> >
> Take a look at the MatchData class, particularly the #begin and #offset
> methods.


Thanx I didn't know about that one.  But I still don't know how that will
help me.  Could you break it down for me pls?

Thanx

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