kc3-lang/libxml2/example/parse2.c

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• Hash : d381e5de
  Author :
  Date : 2024-04-28T21:14:32
  

  doc: Move doc/examples to example
  

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• example/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 succeeded */
      if (doc == NULL) {
          fprintf(stderr, "Failed to parse %s\n", filename);
      } else {
  	/* check if validation succeeded */
          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]);
  
      return(0);
  }
  

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