1 /* This is simple demonstration of how to use expat. This program 2 reads an XML document from standard input and writes a line with 3 the name of each element to standard output indenting child 4 elements by one tab stop more than their parent element. 5 It must be used with Expat compiled for UTF-8 output. 6 */ 7 8 #include <stdio.h> 9 #include <expat.h> 10 11 #ifdef XML_LARGE_SIZE 12 #if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400 13 #define XML_FMT_INT_MOD "I64" 14 #else 15 #define XML_FMT_INT_MOD "ll" 16 #endif 17 #else 18 #define XML_FMT_INT_MOD "l" 19 #endif 20 21 static void XMLCALL 22 startElement(void *userData, const char *name, const char **atts) 23 { 24 int i; 25 int *depthPtr = (int *)userData; 26 (void)atts; 27 28 for (i = 0; i < *depthPtr; i++) 29 putchar('\t'); 30 puts(name); 31 *depthPtr += 1; 32 } 33 34 static void XMLCALL 35 endElement(void *userData, const char *name) 36 { 37 int *depthPtr = (int *)userData; 38 (void)name; 39 40 *depthPtr -= 1; 41 } 42 43 int 44 main(int argc, char *argv[]) 45 { 46 char buf[BUFSIZ]; 47 XML_Parser parser = XML_ParserCreate(NULL); 48 int done; 49 int depth = 0; 50 (void)argc; 51 (void)argv; 52 53 XML_SetUserData(parser, &depth); 54 XML_SetElementHandler(parser, startElement, endElement); 55 do { 56 size_t len = fread(buf, 1, sizeof(buf), stdin); 57 done = len < sizeof(buf); 58 if (XML_Parse(parser, buf, len, done) == XML_STATUS_ERROR) { 59 fprintf(stderr, 60 "%s at line %" XML_FMT_INT_MOD "u\n", 61 XML_ErrorString(XML_GetErrorCode(parser)), 62 XML_GetCurrentLineNumber(parser)); 63 return 1; 64 } 65 } while (!done); 66 XML_ParserFree(parser); 67 return 0; 68 } 69