examples/outline.c

   1 /*****************************************************************
   2  * outline.c
   3  *
   4  * Copyright 1999, Clark Cooper
   5  * All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the license contained in the
   9  * COPYING file that comes with the expat distribution.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  12  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  13  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  14  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  15  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  16  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  17  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  18  *
  19  * Read an XML document from standard input and print an element
  20  * outline on standard output.
  21  * Must be used with Expat compiled for UTF-8 output.
  22  */
  23
  24
  25 #include <stdio.h>
  26 #include <expat.h>
  27
  28 #if defined(__amigaos__) && defined(__USE_INLINE__)
  29 #include <proto/expat.h>
  30 #endif
  31
  32 #ifdef XML_LARGE_SIZE
  33 #if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
  34 #define XML_FMT_INT_MOD "I64"
  35 #else
  36 #define XML_FMT_INT_MOD "ll"
  37 #endif
  38 #else
  39 #define XML_FMT_INT_MOD "l"
  40 #endif
  41
  42 #define BUFFSIZE        8192
  43
  44 char Buff[BUFFSIZE];
  45
  46 int Depth;
  47
  48 static void XMLCALL
  49 start(void *data, const char *el, const char **attr)
  50 {
  51   int i;
  52
  53   for (i = 0; i < Depth; i++)
  54     printf("  ");
  55
  56   printf("%s", el);
  57
  58   for (i = 0; attr[i]; i += 2) {
  59     printf(" %s='%s'", attr[i], attr[i + 1]);
  60   }
  61
  62   printf("\n");
  63   Depth++;
  64 }
  65
  66 static void XMLCALL
  67 end(void *data, const char *el)
  68 {
  69   Depth--;
  70 }
  71
  72 int
  73 main(int argc, char *argv[])
  74 {
  75   XML_Parser p = XML_ParserCreate(NULL);
  76   if (! p) {
  77     fprintf(stderr, "Couldn't allocate memory for parser\n");
  78     exit(-1);
  79   }
  80
  81   XML_SetElementHandler(p, start, end);
  82
  83   for (;;) {
  84     int done;
  85     int len;
  86
  87     len = (int)fread(Buff, 1, BUFFSIZE, stdin);
  88     if (ferror(stdin)) {
  89       fprintf(stderr, "Read error\n");
  90       exit(-1);
  91     }
  92     done = feof(stdin);
  93
  94     if (XML_Parse(p, Buff, len, done) == XML_STATUS_ERROR) {
  95       fprintf(stderr, "Parse error at line %" XML_FMT_INT_MOD "u:\n%s\n",
  96               XML_GetCurrentLineNumber(p),
  97               XML_ErrorString(XML_GetErrorCode(p)));
  98       exit(-1);
  99     }
 100
 101     if (done)
 102       break;
 103   }
 104   XML_ParserFree(p);
 105   return 0;
 106 }