Re: [xml] accessing Parser-Ctxt in SAX based schema validation

Hi Daniel.

Daniel Veillard wrote:

But what do I set my state->ctxt to (supposed to be a xmlParserCtxtPtr) as I don't have the parser-Ctxt of the parsed xml-file? I first thought of passing the xmlSchemaValidCtxtPtr and than using vctxt->parserCtxt in my SAX-handler, but that does not work as the parserCtxt-element is not "public".

  Hum, right one would need to add an accessor function at the end of
xmlschemas.c ...

Ok, the attached patch does the job.

But what are you using the parser context for, i'm curious ?

So far only for accessing line numbers in the parsed xml-file, when printing error message for content checks. May be I can get around these messages by using the planed schema validation. But then I'm running in another problem:

With Sax based schema validation enabled I don't get line-numbers printed out for validity errors when using the default output handler for validation errors -- which makes the output not very useful!. Why?

When I try to work around this by attaching some other handler using xmlSchemaSetValidErrors I also do need access to the parserCtxt encapsulated in the schemaValidContextPtr. With the changes made by the supplied patch I get it working this way.

Is there any other way for accessing line numbers in the parsed xml? If no, any chance to get the patch included in the distribution?


diff -r libxml2-2.6.31/include/libxml/xmlschemas.h libxml2-2.6.31-hk/include/libxml/xmlschemas.h
      xmlSchemaValidCtxtGetParserCtxt(xmlSchemaValidCtxtPtr ctxt);

diff -r libxml2-2.6.31/xmlschemas.c libxml2-2.6.31-hk/xmlschemas.c
 * xmlSchemaValidCtxtGetParserCtxt:
 * @ctxt: a schema validation context
 * Return the parser context of the schema validation context passed.
 * Returns the parser context of the schema validation context passed
inline xmlParserCtxtPtr
xmlSchemaValidCtxtGetParserCtxt(xmlSchemaValidCtxtPtr ctxt)
      return (ctxt->parserCtxt);

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