Re: Search and replace for large number of files

I assume you are using XML::LibXML (good for you!). To work with namespaces, you have to register them and use a prefix:

my $xpc = 'XML::LibXML::XPathContext'->new;
$xpc->registerNs('e', 'http://www.earthstats.org/XFDL/Custom');

my @nodes = $xpc->findnodes('e:EARTHSTATS', $xml->documentElement);
[download]

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

Comment on Re: Search and replace for large number of files Download Code

Replies are listed 'Best First'.
Re^2: Search and replace for large number of files by smls (Friar) on May 23, 2014 at 10:47 UTC
To catch both cases in one go, you could use an alternation inside the XPath expression: `my @nodes = $xpc->findnodes('e:EARTHSTATS \| EARTHSTATS', $doc);` [download] An alternative solution that does not require registering the namespace, would be to use the local-name XPath function: `my @nodes = $doc->findnodes('*[local-name()="EARTHSTATS"]');` [download] Of course neither of those solutions is very pretty, but unfortunately that's just how XPath 1.0 works when dealing with inconsistently namespaced input. Things are better with XPath 2, but `XML::LibXML` doesn't have support for that (nor does any other Perl module that I'm aware of).	[reply] [d/l] [select]
Re^3: Search and replace for large number of files by bangor (Monk) on May 23, 2014 at 11:16 UTC
Thanks for that, I have learnt something new. Looks like I have to change all my other Xpath expressions too though.	[reply]
Re^2: Search and replace for large number of files by bangor (Monk) on May 23, 2014 at 11:19 UTC
Yes, I really like XML::LibXML, it flies through these files some of which are really big. It's the people who produce the XML files in an inconsistent fashion that I want to invite outside!	[reply]
Re^3: Search and replace for large number of files by RonW (Parson) on May 23, 2014 at 19:45 UTC
I would guess they are using more than 1 application to generate the XML files, so blame the people who wrote those for being inconsistent with the XML specifications.	[reply]