1 /** 2 * section: Parsing 3 * synopsis: Parse and validate an XML file to a tree and free the result 4 * purpose: Create a parser context for an XML file, then parse and validate 5 * the file, creating a tree, check the validation result 6 * and xmlFreeDoc() to free the resulting tree. 7 * usage: parse2 test2.xml 8 * test: parse2 test2.xml 9 * author: Daniel Veillard 10 * copy: see Copyright for the status of this software. 11 */ 12 13 #include <stdio.h> 14 #include <libxml/parser.h> 15 #include <libxml/tree.h> 16 17 /** 18 * exampleFunc: 19 * @filename: a filename or an URL 20 * 21 * Parse and validate the resource and free the resulting tree 22 */ 23 static void 24 exampleFunc(const char *filename) { 25 xmlParserCtxtPtr ctxt; /* the parser context */ 26 xmlDocPtr doc; /* the resulting document tree */ 27 28 /* create a parser context */ 29 ctxt = xmlNewParserCtxt(); 30 if (ctxt == NULL) { 31 fprintf(stderr, "Failed to allocate parser context\n"); 32 return; 33 } 34 /* parse the file, activating the DTD validation option */ 35 doc = xmlCtxtReadFile(ctxt, filename, NULL, XML_PARSE_DTDVALID); 36 /* check if parsing suceeded */ 37 if (doc == NULL) { 38 fprintf(stderr, "Failed to parse %s\n", filename); 39 } else { 40 /* check if validation suceeded */ 41 if (ctxt->valid == 0) 42 fprintf(stderr, "Failed to validate %s\n", filename); 43 /* free up the resulting document */ 44 xmlFreeDoc(doc); 45 } 46 /* free up the parser context */ 47 xmlFreeParserCtxt(ctxt); 48 } 49 50 int main(int argc, char **argv) { 51 if (argc != 2) 52 return(1); 53 54 /* 55 * this initialize the library and check potential ABI mismatches 56 * between the version it was compiled for and the actual shared 57 * library used. 58 */ 59 LIBXML_TEST_VERSION 60 61 exampleFunc(argv[1]); 62 63 /* 64 * Cleanup function for the XML library. 65 */ 66 xmlCleanupParser(); 67 /* 68 * this is to debug memory for regression tests 69 */ 70 xmlMemoryDump(); 71 return(0); 72 } 73
