From: Robert Klemme <shortcutter@...>
Date: 2008-03-31T18:21:36+09:00
Subject: Re: rexml to slow

2008/3/31, Bu Mihai <mihai.bulhac@yahoo.com>:
> Im trying to build a map and to memorize all routes. I have a root node
>  wich will generate some roads and each road will generate another roads
>  and i have to go on all roads until there is no road unchecked.
>  If im on a road and that road generates new roads then to go an all
>  generated road i must begin my route from the begining not from the road
>  who generates his child roads.

Ok, a pretty straightforward graph problem.  It is a bad idea to do
that on the raw XML data.  You should create a representation of the
road data that suits your algorithm better.  Then read the whole XML
only once, create that representation and implement your algorithm on
your internal representation.  Doing it on the XML is certainly the
worst option.

Kind regards

robert

-- 
use.inject do |as, often| as.you_can - without end