From: Phlip <phlip2005@...>
Date: 2009-01-10T18:49:32+09:00
Subject: Re: Help with HTML parsing

Tom Morris wrote:

> XPath that solves this:
> contains(concat(' ', @class, ' '), ' w0 ')
> 
> You can join multiple classes together like this:
> contains(concat(' ', @class, ' '), ' w0 ') && contains(concat(' ',
> @class, ' '), ' g ')
> 
> It's not pretty. I've written it too much in my life.
> I do wish XPath had a class selector.

Noted. I'm writing an XPath DSL, above the level of a raw XML library, and I 
just added to its pending feature list these line-items:

#  TODO  :class => :symbol should do the trick contains(concat(' ', @class, ' 
'), ' w0 ')
#  TODO  :class => [] should do the trick contains(concat(' ', @class, ' '), ' 
w0 ') && contains(concat(' ',@class, ' '), ' g ')
#  TODO  :class => a string should be raw.

Those won't fix low-level XPath, but they will be useful when my DSL targets 
XHTML...