From: Gavin Kistner <gavin@...>
Date: 2005-10-11T21:45:20+09:00
Subject: Re: help with htree

On Oct 10, 2005, at 2:58 PM, Ara.T.Howard wrote:
> i'm trying use the htree library for a relatively simple task in  
> the hope that
> it's parser will outlive one i roll on my own - it certainly seems  
> robust as
> it is...  in any case i'm trying to do the following
>
>   - scan a doc for any elements that have a certain attribute
>   - iff the element with that attribute is of a certain class (b,  
> i, pre, etc)
>     then i'll want to replace the text of that element in-place
>   - finally, a new doc will be produced

Not answering your question: why not use regexp?

mydoc.gsub(
     /(myattrname\s*=\s*(?:'#{value}'|"#{value}")[^>]+>[^<]*<(b|i|pre) 
[^>]*>).*?<\/\\2>/,
     "\\1#{new_text}"
)

(untested)

Notable flaw - will fail if the same element is nested within itself.