| /** |
| * section: xmlReader |
| * synopsis: Parse and validate an XML file with an xmlReader |
| * purpose: Demonstrate the use of xmlReaderForFile() to parse an XML file |
| * validating the content in the process and activating options |
| * like entities substitution, and DTD attributes defaulting. |
| * (Note that the XMLReader functions require libxml2 version later |
| * than 2.6.) |
| * usage: reader2 <valid_xml_filename> |
| * test: reader2 test2.xml > reader1.tmp ; diff reader1.tmp reader1.res ; rm reader1.tmp |
| * author: Daniel Veillard |
| * copy: see Copyright for the status of this software. |
| */ |
| |
| #include <stdio.h> |
| #include <libxml/xmlreader.h> |
| |
| /** |
| * processNode: |
| * @reader: the xmlReader |
| * |
| * Dump information about the current node |
| */ |
| static void |
| processNode(xmlTextReaderPtr reader) { |
| const xmlChar *name, *value; |
| |
| name = xmlTextReaderConstName(reader); |
| if (name == NULL) |
| name = BAD_CAST "--"; |
| |
| value = xmlTextReaderConstValue(reader); |
| |
| printf("%d %d %s %d %d", |
| xmlTextReaderDepth(reader), |
| xmlTextReaderNodeType(reader), |
| name, |
| xmlTextReaderIsEmptyElement(reader), |
| xmlTextReaderHasValue(reader)); |
| if (value == NULL) |
| printf("\n"); |
| else { |
| if (xmlStrlen(value) > 40) |
| printf(" %.40s...\n", value); |
| else |
| printf(" %s\n", value); |
| } |
| } |
| |
| /** |
| * streamFile: |
| * @filename: the file name to parse |
| * |
| * Parse, validate and print information about an XML file. |
| */ |
| static void |
| streamFile(const char *filename) { |
| xmlTextReaderPtr reader; |
| int ret; |
| |
| |
| /* |
| * Pass some special parsing options to activate DTD attribute defaulting, |
| * entities substitution and DTD validation |
| */ |
| reader = xmlReaderForFile(filename, NULL, |
| XML_PARSE_DTDATTR | /* default DTD attributes */ |
| XML_PARSE_NOENT | /* substitute entities */ |
| XML_PARSE_DTDVALID); /* validate with the DTD */ |
| if (reader != NULL) { |
| ret = xmlTextReaderRead(reader); |
| while (ret == 1) { |
| processNode(reader); |
| ret = xmlTextReaderRead(reader); |
| } |
| /* |
| * Once the document has been fully parsed check the validation results |
| */ |
| if (xmlTextReaderIsValid(reader) != 1) { |
| fprintf(stderr, "Document %s does not validate\n", filename); |
| } |
| xmlFreeTextReader(reader); |
| if (ret != 0) { |
| fprintf(stderr, "%s : failed to parse\n", filename); |
| } |
| } else { |
| fprintf(stderr, "Unable to open %s\n", filename); |
| } |
| } |
| |
| 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 |
| |
| streamFile(argv[1]); |
| |
| /* |
| * Cleanup function for the XML library. |
| */ |
| xmlCleanupParser(); |
| /* |
| * this is to debug memory for regression tests |
| */ |
| xmlMemoryDump(); |
| return(0); |
| } |