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      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 #if defined(__amigaos__) && defined(__USE_INLINE__)
     12 #include <proto/expat.h>
     13 #endif
     14 
     15 #ifdef XML_LARGE_SIZE
     16 #if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
     17 #define XML_FMT_INT_MOD "I64"
     18 #else
     19 #define XML_FMT_INT_MOD "ll"
     20 #endif
     21 #else
     22 #define XML_FMT_INT_MOD "l"
     23 #endif
     24 
     25 static void XMLCALL
     26 startElement(void *userData, const char *name, const char **atts)
     27 {
     28   int i;
     29   int *depthPtr = (int *)userData;
     30   for (i = 0; i < *depthPtr; i++)
     31     putchar('\t');
     32   puts(name);
     33   *depthPtr += 1;
     34 }
     35 
     36 static void XMLCALL
     37 endElement(void *userData, const char *name)
     38 {
     39   int *depthPtr = (int *)userData;
     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   XML_SetUserData(parser, &depth);
     51   XML_SetElementHandler(parser, startElement, endElement);
     52   do {
     53     int len = (int)fread(buf, 1, sizeof(buf), stdin);
     54     done = len < sizeof(buf);
     55     if (XML_Parse(parser, buf, len, done) == XML_STATUS_ERROR) {
     56       fprintf(stderr,
     57               "%s at line %" XML_FMT_INT_MOD "u\n",
     58               XML_ErrorString(XML_GetErrorCode(parser)),
     59               XML_GetCurrentLineNumber(parser));
     60       return 1;
     61     }
     62   } while (!done);
     63   XML_ParserFree(parser);
     64   return 0;
     65 }
     66