Bug #34873 for XML-LibXML: patterns and charsets

Hi Mark, In prior XML::LibXML development I did not consider the character ranges as a problem, as the translation form XML to internal data structures is completely performed by the library. I just checked the libxml2's web site and there is a helper library that performs per character checking. However, I do not completely understand what you are exactly looking for. Is it character checking or Schema checking? Maybe you could provide an example of your ideas. You may want to have a look at the character validation API and explore if this part does what you want. http://xmlsoft.org/html/libxml-chvalid.html Another option is the Schema API, which has three parts: http://xmlsoft.org/html/libxml-xmlschemas.html http://xmlsoft.org/html/libxml-xmlschemastypes.html http://xmlsoft.org/html/libxml-schemasInternals.html Finally, there is a pattern API, which might help. http://xmlsoft.org/html/libxml-pattern.html I don't think that drafting an interface to the character validation API should be too much of a problem. For the other APIs it requires a closer look. Christian On Fri, 2008-04-11 at 08:34 -0400, Mark Overmeer via RT wrote: Show quoted text

* Christian Glahn via RT (bug-XML-LibXML@rt.cpan.org) [080412 11:06]: XML::Compile does validation (optional) under fly, when parts of the final message are under construction. At that time, I would like to be able to check the validity of schema simpleType values which have a restriction facet "pattern". I tried to translate the pattern into a regex, but XML does not use unicode classes to define what it accepts. XML::RegExp does define the codes explicitly, but using those will be far too slow. So, I would really like to be able to validate against libxml2. Show quoted text
Judgin by name, it looks like xmlPatterncompile and xmlPatternMatch would do the job. Although I do not know whether character check patterns are the same as XPath patterns. Something along the lines of: use XML::LibXML::Common qw/compile_pattern pattern_matches/ my $pat = compile_pattern XSSEL => '\c'; if(pattern_matches $pat, $token) {...} However, I do expect the patterns the show-up in the Schema Facet check page... http://xmlsoft.org/html/libxml-xmlschemastypes.html Today, I have no time to read the C source to find where the schema implementation check patterns... We do not need interfaces to the other facets, because they are simple in regexes. -- Regards, MarkOv ------------------------------------------------------------------------ Mark Overmeer MSc MARKOV Solutions Mark@Overmeer.net solutions@overmeer.net http://Mark.Overmeer.net http://solutions.overmeer.net

* Petr Pajas via RT (bug-XML-LibXML@rt.cpan.org) [081102 23:53]: Show quoted text
I have checked it out, and it seems it will suffice. Thanks! (Glad to see that there are new developments, after many months of silence) -- Regards, MarkOv ------------------------------------------------------------------------ Mark Overmeer MSc MARKOV Solutions Mark@Overmeer.net solutions@overmeer.net http://Mark.Overmeer.net http://solutions.overmeer.net

Dne po 24.lis.2008 15:29:00, MARKOV napsal(a): Show quoted text
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ok, I'm not going to create interface to all functions in xmlautomata. Please be more specific, what method exactly do you want (or submit a patch). -- Petr

Hi, I've added a new module XML::LibXML::RegExp based on xmlregexp.c. It provides a constructor which compiles a regexp into an automaton and two methods: $bool = $re->match($string) # xmlRegexpEval and $bool = $re->isDeterministic(); # libxml2 provides this method and I guess it can be useful for identifying deterministic content models; don't know of any other application libxml2 seems to be using xmlRegexpCompile and xmlRegexpEval for testing XSD pattern facets, therefore I hope this will close this request. Please test with your module. Also, you are welcome to contribute test cases. -- Petr Dne so 24.led.2009 20:31:44, Mark@Overmeer.net napsal(a): Show quoted text