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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   (void)atts;
     31 
     32   for (i = 0; i < *depthPtr; i++)
     33     putchar('\t');
     34   puts(name);
     35   *depthPtr += 1;
     36 }
     37 
     38 static void XMLCALL
     39 endElement(void *userData, const char *name)
     40 {
     41   int *depthPtr = (int *)userData;
     42   (void)name;
     43 
     44   *depthPtr -= 1;
     45 }
     46 
     47 int
     48 main(int argc, char *argv[])
     49 {
     50   char buf[BUFSIZ];
     51   XML_Parser parser = XML_ParserCreate(NULL);
     52   int done;
     53   int depth = 0;
     54   (void)argc;
     55   (void)argv;
     56 
     57   XML_SetUserData(parser, &depth);
     58   XML_SetElementHandler(parser, startElement, endElement);
     59   do {
     60     size_t len = fread(buf, 1, sizeof(buf), stdin);
     61     done = len < sizeof(buf);
     62     if (XML_Parse(parser, buf, len, done) == XML_STATUS_ERROR) {
     63       fprintf(stderr,
     64               "%s at line %" XML_FMT_INT_MOD "u\n",
     65               XML_ErrorString(XML_GetErrorCode(parser)),
     66               XML_GetCurrentLineNumber(parser));
     67       return 1;
     68     }
     69   } while (!done);
     70   XML_ParserFree(parser);
     71   return 0;
     72 }
     73