From: Brian Candler <b.candler@...>
Date: 2011-02-07T06:08:05+09:00
Subject: Re: REXML - Empty string error

Stuart Clarke wrote in post #979927:
> Hi all,
>
> I am parsing some XML with XPATH and REXML. A snippet is below:
>
> ..
> e.elements['Questions'].text << "," <<
> e.elements['Offers'].text << "," <<
> e.elements['ID'].text << "," <<
> ..
>
> The ID XML tag is often an empty tag (no data in it) and this throws an
> error in my script of
>
> .rb:364:in `<<': can't convert nil into String (TypeError)
>
> How do I ignore this error? I just want to take whatever is in the XML
> (even if it is empty) and carry on to the next data set.

Very similar question asked (and answered) within the last day:
http://www.ruby-forum.com/topic/1021053

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