kc3-lang/libxml2/doc/examples/parse2.c

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• Hash : 4773df2a
  Author :
  Date : 2004-01-23T13:15:13
  

  added io1.c an example ox xmlIO usage and io1.res test result, fixed a
  
  * doc/examples/*: added io1.c an example ox xmlIO usage and io1.res
    test result, fixed a awful lot of memory leaks showing up in
    testWriter.c, changed the examples and the Makefiles to test
    memory leaks.
  * xmlwriter.c: fixed a memory leak
  * Makefile.am: run the doc/examples regression tests as part of
    make tests
  * xpath.c include/libxml/xpath.h: added xmlXPathCtxtCompile() to
    compile an XPath expression within a context, currently the goal
    is to be able to reuse the XSLT stylesheet dictionnary, but this
    opens the door to others possible optimizations.
  * dict.c include/libxml/dict.h: added xmlDictCreateSub() which allows
    to build a new dictionnary based on another read-only dictionnary.
    This is needed for XSLT to keep the stylesheet dictionnary read-only
    while being able to reuse the strings for the transformation
    dictionnary.
  * xinclude.c: fixed a dictionnar reference counting problem occuring
    when document parsing failed.
  * testSAX.c: adding option --repeat for timing 100times the parsing
  * doc/* : rebuilt all the docs
  Daniel
  

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• doc/examples/parse2.c

• /**
   * 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);
  }
  

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