/**

 * section: Parsing

 * synopsis: Parse and validate an XML file to a tree and free the result

 * purpose: Create a parser context for an XML file, then parse and validate

 *          the file, creating a tree, check the validation result

 *          and xmlFreeDoc() to free the resulting tree.

 * usage: parse2 test2.xml

 * test: parse2 test2.xml

 * author: Daniel Veillard

 * copy: see Copyright for the status of this software.

 */

#include <stdio.h>

#include <libxml/parser.h>

#include <libxml/tree.h>

/**

 * exampleFunc:

 * @filename: a filename or an URL

 *

 * Parse and validate the resource and free the resulting tree

 */

static void

exampleFunc(const char *filename) {

    xmlParserCtxtPtr ctxt; /* the parser context */

    xmlDocPtr doc; /* the resulting document tree */

    /* create a parser context */

    ctxt = xmlNewParserCtxt();

    if (ctxt == NULL) {

        fprintf(stderr, "Failed to allocate parser context\n");

	return;

    }

    /* parse the file, activating the DTD validation option */

    doc = xmlCtxtReadFile(ctxt, filename, NULL, XML_PARSE_DTDVALID);

    /* check if parsing suceeded */

    if (doc == NULL) {

        fprintf(stderr, "Failed to parse %s\n", filename);

    } else {

	/* check if validation suceeded */

        if (ctxt->valid == 0)

	    fprintf(stderr, "Failed to validate %s\n", filename);

	/* free up the resulting document */

	xmlFreeDoc(doc);

    }

    /* free up the parser context */

    xmlFreeParserCtxt(ctxt);

}

int main(int argc, char **argv) {

    if (argc != 2)

        return(1);

    /*

     * this initialize the library and check potential ABI mismatches

     * between the version it was compiled for and the actual shared

     * library used.

     */

    LIBXML_TEST_VERSION

    exampleFunc(argv[1]);

    /*

     * Cleanup function for the XML library.

     */

    xmlCleanupParser();

    /*

     * this is to debug memory for regression tests

     */

    xmlMemoryDump();

    return(0);

}