From: ruud grosmann <r.grosmann@...>
Date: 2008-07-30T17:37:26+09:00
Subject: Re: libxml: is it possible not to use doctype declaration?

hi Phill,

I've tried it right away. I ended up with the following:

XML::Parser.default_load_external_dtd = false
XML::Parser.default_validity_checking = false
XML::Parser.default_substitute_entities = false

        parser = XML::Parser.file( file)
        #parser.default_substitute_entities = false
        #parser.default_load_external_dtd = false
        #parser.default_validity_checking = false
        doc = parser.parse
        node = doc.find( xpath).first

But the script still tries to resolve the entity. The doctype
definition is a slightly changed real one. The message I get with the
above code is:

Operation in progress./tmp/ut21.uit:3: I/O warning : failed to load
external entity "http://ruud.grosmann.nl/op/dtd/publicatie.dtd"
e publicaties 1.0//NL" "http://ruud.grosmann.nl/op/dtd/publicatie.dtd"

You were right that the methods are not instance methods, although I
am not sure how to conclude that from the documentation.

Did I something wrong in the script?

regards, Ruud

On 30/07/2008, Phill Davies <binary011010@verizon.net> wrote:
> Whoops, those were supposed to be class variables. What you really want
> to do (I think) is more like:
>
> LibXML::XML::Parser.default_load_external_dtd = false
> LibXML::XML::Parser.default_validity_checking = false
>
> And then:
> parser = LibXML::XML::Parser.file(<file>)
> doc = parser.parse
>
> That seems to work with your example.
>
> Phill Davies wrote:
>> To start, the rdoc documentation can be found at
>> http://libxml.rubyforge.org/rdoc/index.html. Now I don't know this for
>> sure, but
>>
>> <!DOCTYPE test PUBLIC "-//FARAWAY//DTD-verweg//NL"
>> "http://some.site.nl/dtd/test.dtd">
>>
>> doesn't look like a real doctype definition, so if you can pull it out
>> of your xml (by hand, not programmatically) before trying to parse it,
>> I'd say that would be a good idea. That being said, there are two
>> attributes of the XML::Parser class that look like they may be of
>> interest: default_load_external_dtd and default_validity_checking. Try
>> setting both of those to false, unless you have a real dtd to validate
>> against and the example above was fake. Of course, since this is using
>> XML::Parser instead of XML::Document I think you would need to do
>> e.g.: parser = XML::Parser.file(<file>)
>> parser.default_load_external_dtd = false
>> parser.default_validity_checking = false
>> doc = parser.parse
>>
>> ... and then go from there.
>> Phill D.
>>
>> Phlip wrote:
>>> ruud grosmann wrote:
>>>
>>>> Is using libxml the right thing to do to, or are there smarter
>>>> alternatives?
>>>
>>> Libxml-ruby is the most complete & accurate parser of the big three
>>> (REXML, Libxml-ruby, and Hpricot), and its documentation can be very
>>> challenging. How much of the original C Libxml documentation have you
>>> been able to read?
>>>
>>>
>>
>>
>>
>
>
>