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#include <xml_relax_ng.h>
static void dealloc(xmlRelaxNGPtr schema)
{
NOKOGIRI_DEBUG_START(schema);
xmlRelaxNGFree(schema);
NOKOGIRI_DEBUG_END(schema);
}
/*
* call-seq:
* validate_document(document)
*
* Validate a Nokogiri::XML::Document against this RelaxNG schema.
*/
static VALUE validate_document(VALUE self, VALUE document)
{
xmlDocPtr doc;
xmlRelaxNGPtr schema;
VALUE errors;
xmlRelaxNGValidCtxtPtr valid_ctxt;
Data_Get_Struct(self, xmlRelaxNG, schema);
Data_Get_Struct(document, xmlDoc, doc);
errors = rb_ary_new();
valid_ctxt = xmlRelaxNGNewValidCtxt(schema);
if(NULL == valid_ctxt) {
/* we have a problem */
rb_raise(rb_eRuntimeError, "Could not create a validation context");
}
#ifdef HAVE_XMLRELAXNGSETVALIDSTRUCTUREDERRORS
xmlRelaxNGSetValidStructuredErrors(
valid_ctxt,
Nokogiri_error_array_pusher,
(void *)errors
);
#endif
xmlRelaxNGValidateDoc(valid_ctxt, doc);
xmlRelaxNGFreeValidCtxt(valid_ctxt);
return errors;
}
/*
* call-seq:
* read_memory(string)
*
* Create a new RelaxNG from the contents of +string+
*/
static VALUE read_memory(VALUE klass, VALUE content)
{
xmlRelaxNGParserCtxtPtr ctx = xmlRelaxNGNewMemParserCtxt(
(const char *)StringValuePtr(content),
(int)RSTRING_LEN(content)
);
xmlRelaxNGPtr schema;
VALUE errors = rb_ary_new();
VALUE rb_schema;
xmlSetStructuredErrorFunc((void *)errors, Nokogiri_error_array_pusher);
#ifdef HAVE_XMLRELAXNGSETPARSERSTRUCTUREDERRORS
xmlRelaxNGSetParserStructuredErrors(
ctx,
Nokogiri_error_array_pusher,
(void *)errors
);
#endif
schema = xmlRelaxNGParse(ctx);
xmlSetStructuredErrorFunc(NULL, NULL);
xmlRelaxNGFreeParserCtxt(ctx);
if(NULL == schema) {
xmlErrorPtr error = xmlGetLastError();
if(error)
Nokogiri_error_raise(NULL, error);
else
rb_raise(rb_eRuntimeError, "Could not parse document");
return Qnil;
}
rb_schema = Data_Wrap_Struct(klass, 0, dealloc, schema);
rb_iv_set(rb_schema, "@errors", errors);
return rb_schema;
}
/*
* call-seq:
* from_document(doc)
*
* Create a new RelaxNG schema from the Nokogiri::XML::Document +doc+
*/
static VALUE from_document(VALUE klass, VALUE document)
{
xmlDocPtr doc;
xmlRelaxNGParserCtxtPtr ctx;
xmlRelaxNGPtr schema;
VALUE errors;
VALUE rb_schema;
Data_Get_Struct(document, xmlDoc, doc);
/* In case someone passes us a node. ugh. */
doc = doc->doc;
ctx = xmlRelaxNGNewDocParserCtxt(doc);
errors = rb_ary_new();
xmlSetStructuredErrorFunc((void *)errors, Nokogiri_error_array_pusher);
#ifdef HAVE_XMLRELAXNGSETPARSERSTRUCTUREDERRORS
xmlRelaxNGSetParserStructuredErrors(
ctx,
Nokogiri_error_array_pusher,
(void *)errors
);
#endif
schema = xmlRelaxNGParse(ctx);
xmlSetStructuredErrorFunc(NULL, NULL);
if(NULL == schema) {
xmlErrorPtr error = xmlGetLastError();
if(error)
Nokogiri_error_raise(NULL, error);
else
rb_raise(rb_eRuntimeError, "Could not parse document");
return Qnil;
}
rb_schema = Data_Wrap_Struct(klass, 0, dealloc, schema);
rb_iv_set(rb_schema, "@errors", errors);
return rb_schema;
}
VALUE cNokogiriXmlRelaxNG;
void init_xml_relax_ng()
{
VALUE nokogiri = rb_define_module("Nokogiri");
VALUE xml = rb_define_module_under(nokogiri, "XML");
VALUE klass = rb_define_class_under(xml, "RelaxNG", cNokogiriXmlSchema);
cNokogiriXmlRelaxNG = klass;
rb_define_singleton_method(klass, "read_memory", read_memory, 1);
rb_define_singleton_method(klass, "from_document", from_document, 1);
rb_define_private_method(klass, "validate_document", validate_document, 1);
}
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