On Sat, Mar 26, 2016 at 09:48:59PM +0100, Fabian Wein wrote: > Hello to the list, > > I know I have a FAQ but I cannot manage it by myself :( > > I have a xsd schema and need to validate *and* parse a xml file making use > of the default values from the schema. > > In the end I need it in C++ but I guess it helps to have it first in Python?! > > My minimalistic example is based on > http://www.w3schools.com/xml/schema_howto.asp > extended by attributes, one with default -> see attachment. > > Validating works nicely :) Any error in the xml is detected or ret=0 if the > file is ok. > > doc = libxml2.parseFile(„node.xml“) > s = libxml2.schemaNewParserCtxt(„node.xsd“) > sp = s.schemaParse() > ct = sp.schemaNewValidCtxt() > ret = ct.schemaValidateDoc(doc) > > But I have no idea on how to get the populated data from this (only from doc). > > Then I tried to extend the reader example: > > def streamFile(filename): > reader = libxml2.newTextReaderFilename(filename) > s = libxml2.schemaNewParserCtxt(‚node.xsd‘) > sp = s.schemaParse() > ct = sp.schemaNewValidCtxt() > ct.schemaSetValidOptions(libxml2.XML_SCHEMA_VAL_VC_I_CREATE) > ct.SchemaValidateCtxt(reader, libxml2.XML_SCHEMA_VAL_VC_I_CREATE) > > reader.SetSchema(ct) > reader.SetParserProp(libxml2.PARSER_DEFAULTATTRS, 1) > ret = reader.Read() > while ret == 1: > processNode(reader) > ret = reader.Read() > > However, with the reader api the root element is not recognized and the > default attribute is not set: > > Element ‚{http://www.w3schools.com}note‘: No matching global declaration > available for the validation root. > > As the schema is validated properly in the first code I believe the schema is > ok. > > So my questions are: > * Which api shall I use to make use of the default values?
I don't think the toolkit has the support in XML schemas to populate default values back in the tree. > * Shall I try in C instead of Python? > * Is there a link which helps me? I spent two days googling without success :( and that explain why, > Thanks a lot! sorry, Daniel > Fabian > > > > > > > _______________________________________________ > xml mailing list, project page http://xmlsoft.org/ > xml@gnome.org > https://mail.gnome.org/mailman/listinfo/xml -- Daniel Veillard | Open Source and Standards, Red Hat veill...@redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/ _______________________________________________ xml mailing list, project page http://xmlsoft.org/ xml@gnome.org https://mail.gnome.org/mailman/listinfo/xml
