class LibXML::XML::RelaxNG
The XML::RelaxNG
class is used to prepare RelaxNG
schemas for validation of xml documents.
Schemas can be created from XML
documents, strings or URIs using the corresponding methods (new for URIs).
Once a schema is prepared, an XML
document can be validated by the XML::Document#validate_relaxng
method providing the XML::RelaxNG
object as parameter. The method will raise an exception if the document is not valid.
Basic Usage:
# parse schema as xml document relaxng_document = XML::Document.file('schema.rng') # prepare schema for validation relaxng_schema = XML::RelaxNG.document(relaxng_document) # parse xml document to be validated instance = XML::Document.file('instance.xml') # validate instance.validate_relaxng(relaxng_schema)
Public Class Methods
Source
static VALUE rxml_relaxng_init_from_document(VALUE class, VALUE document) { xmlDocPtr xdoc; xmlRelaxNGPtr xrelaxng; xmlRelaxNGParserCtxtPtr xparser; Data_Get_Struct(document, xmlDoc, xdoc); xparser = xmlRelaxNGNewDocParserCtxt(xdoc); xrelaxng = xmlRelaxNGParse(xparser); xmlRelaxNGFreeParserCtxt(xparser); return Data_Wrap_Struct(cXMLRelaxNG, NULL, rxml_relaxng_free, xrelaxng); }
Create a new relaxng from the specified document.
Source
static VALUE rxml_relaxng_init_from_string(VALUE self, VALUE relaxng_str) { xmlRelaxNGParserCtxtPtr xparser; xmlRelaxNGPtr xrelaxng; Check_Type(relaxng_str, T_STRING); xparser = xmlRelaxNGNewMemParserCtxt(StringValuePtr(relaxng_str), (int)strlen(StringValuePtr(relaxng_str))); xrelaxng = xmlRelaxNGParse(xparser); xmlRelaxNGFreeParserCtxt(xparser); return Data_Wrap_Struct(cXMLRelaxNG, NULL, rxml_relaxng_free, xrelaxng); }
Create a new relaxng using the specified string.
Source
static VALUE rxml_relaxng_init_from_uri(VALUE class, VALUE uri) { xmlRelaxNGParserCtxtPtr xparser; xmlRelaxNGPtr xrelaxng; Check_Type(uri, T_STRING); xparser = xmlRelaxNGNewParserCtxt(StringValuePtr(uri)); xrelaxng = xmlRelaxNGParse(xparser); xmlRelaxNGFreeParserCtxt(xparser); return Data_Wrap_Struct(cXMLRelaxNG, NULL, rxml_relaxng_free, xrelaxng); }
Create a new relaxng from the specified URI.