Well, if you define component-entities and then you use general-entities, any software will have trouble figuring out where to get the value you want.

Then indeed you need to remove the doctype declaration, which is probably a bug in XML::Twig, I have to check some more.

Once that's done, you need to use the parse_param_ent option to get the value to be read. That option is undocumented because it's inherited directly from XML::Parser. I'll add the doc about it in XML::Twig.

Once that's done, your file looks like this:

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 [ 
  <!ENTITY % component-entities SYSTEM "component.ent">  
  %component-entities;
]> 
<component>Engine-&engine-version;</component>

[download]

and you can see how it's processed by doing this:

perl -MXML::Twig -e'XML::Twig->new( parse_param_ent => 1)->parsefile( "ent1.xml")->print'

In reply to Re: XML::Twig and ENTITY declarations by mirod
in thread XML::Twig and ENTITY declarations by carcassonne

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