Re: Perl XML::Parser failing tests

Robin Berjon wrote:
> On Mar 22, 2010, at 23:39 , Jenda Krynicky wrote:

>> I also know that XML::Twig, which is a fairly popular module is still based
>> on XML::Parser, XML::Rules still uses XML::Parser::Expat, XML::Simple can
>> use both XML::Parser and some SAX2 parser, ...
> 
> Hmmm, I thought Michel had updated Twig not to require XML::Parser anymore
> but it seems that I was wrong. Michel: is there anything specific that you
> get only from XML::Parser that you need? I must say I'm surprised something
> newer like XML::Rules is using the old interface!

There is little point (and a lot of work!) in removing XML::Twig's dependency on 
XML::Parser.

>> SAX itself has a plethora of modules, not based on a SAX parser, but 
>> actually being a SAX parser which confuses the issue.
> 
> I'm sorry, I'm not sure what you mean here :)
> 
>> Shame there is no statistics about the usage of modules, I would really
>> like to know what actually is the usage of XML::Parser/expat versus
>> SAX/(libxml or whatever). Though I do bet there will be a lot more new,
>> single user, modules built on top of the newest and greatest SAX2.
> 
> My bet is that for the most part people are using XML::LibXML (but not the
> SAX bits).

My impression, based on talking to people, following the main perl forums and 
generally whatever gets written anywhere about XML::Twig, is that serious people 
that do XML for a living, use XML::LibXML. The rest, people who need to 
Get-Shit-Done, use whatever, mostly XML::Simple.

XML::Twig niche would be serious people who don't specialize in XML, people who 
batch process huge amounts of data plus a decent number of very enthusiastic 
users who just like the interface.

There also seems to be a surprising amount of questions on various forums about 
XML::XPath and XML::DOM. There is also a fair number of answers with XML::Rules 
based solutions (mostly from a single poster ;--) although I have no idea how 
many people actually use it (not that I have any idea about the others mind you, 
I should generate a graph though).

Stackoverflow tags, around page 488 at the moment, shows 11 questions tagged 
xmlsimple or xml-simple, 2 for xml-dom and 8 for xml-twig. Estimating the amount 
of XML::LibXML questions is more tricky because there was no xml-libxml tag, so 
I created it, feel free to tag questions appropriately (I have no doubt that an 
xml-rules tag will also soon be available ;--) A quick search on perl and libxml 
shows that there are maybe 20 or 30 of them.

In short, I understand that Robin doesn't like XML::Parser (and he knows I don't 
like SAX!), but it is still useful, and it should still be maintained.

-- 
mirod



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