From: Mark Thomas <mark@...>
Date: 2010-02-13T05:15:08+09:00
Subject: Re: REXML translate (XPath?)

On Feb 11, 7:42 pm, "Andrew C." <andrew.c...@gmail.com> wrote:
> Can somebody explain or put me to an explanation of how to use
> REXML::Functions::translate ?
>
> I'd like to turn this: group_list.elements["entry[title='#{name}']"]
>
> . . . into a case insensitive lookup.  Do I put the translation into
> the XPath in that line?  Do I need a separate translation line?
>
> Thanks,
> Andrew

This would be the correct XPath:

group_list.elements["entry[translate(title,
'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
'abcdefghijklmnopqrstuvwxyz')='#{name.downcase}']"]

but I don't know if REXML can handle it, because it's not fully XPath
compliant. I'd use an XPath-compliant parser like Nokogiri if this is
an issue.

-- Mark.