From: Eero Saynatkari <ruby-forum-reg@...>
Date: 2005-12-15T04:39:44+09:00
Subject: Re: string mangling

Martin Pirker wrote:
> Imagine an input string
> aaaaabbccccceeebbbbbbbbbbeaaabaacccceeee...
> 
> I have regexp for the parts a,b,c
> and e can be considered as else.
> 
> So how can I efficiently search/step through the string from left to
> right, while calling for each section the fitting handler, kind of
> 
> case section
>   /aaaa/ ...
> 
>   /bbb/  ...
> 
>   /cccc/ ..
> 
>   else
> 
> end

Aside from the oft-mentioned String#scan, you might look into
using StringScanner (require 'strscan') from the stdlib. It is
very good for more complex cases of scanning. Documentation is
available, for example, at http://www.ruby-doc.org/stdlib.

> Thanks for ideas!
> Martin


E

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