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 #ifdef XML_LARGE_SIZE
  29 #if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
  30 #define XML_FMT_INT_MOD "I64"
  31 #else
  32 #define XML_FMT_INT_MOD "ll"
  33 #endif
  34 #else
  35 #define XML_FMT_INT_MOD "l"
  36 #endif
  37
  38 #define BUFFSIZE        8192
  39
  40 char Buff[BUFFSIZE];
  41
  42 int Depth;
  43
  44 static void XMLCALL
  45 start(void *data, const char *el, const char **attr)
  46 {
  47   int i;
  48
  49   for (i = 0; i < Depth; i++)
  50     printf("  ");
  51
  52   printf("%s", el);
  53
  54   for (i = 0; attr[i]; i += 2) {
  55     printf(" %s='%s'", attr[i], attr[i + 1]);
  56   }
  57
  58   printf("\n");
  59   Depth++;
  60 }
  61
  62 static void XMLCALL
  63 end(void *data, const char *el)
  64 {
  65   Depth--;
  66 }
  67
  68 #ifdef AMIGA_SHARED_LIB
  69 #include <proto/expat.h>
  70 int
  71 amiga_main(int argc, char *argv[])
  72 #else
  73 int
  74 main(int argc, char *argv[])
  75 #endif
  76 {
  77   XML_Parser p = XML_ParserCreate(NULL);
  78   if (! p) {
  79     fprintf(stderr, "Couldn't allocate memory for parser\n");
  80     exit(-1);
  81   }
  82
  83   XML_SetElementHandler(p, start, end);
  84
  85   for (;;) {
  86     int done;
  87     int len;
  88
  89     len = fread(Buff, 1, BUFFSIZE, stdin);
  90     if (ferror(stdin)) {
  91       fprintf(stderr, "Read error\n");
  92       exit(-1);
  93     }
  94     done = feof(stdin);
  95
  96     if (XML_Parse(p, Buff, len, done) == XML_STATUS_ERROR) {
  97       fprintf(stderr, "Parse error at line %" XML_FMT_INT_MOD "u:\n%s\n",
  98               XML_GetCurrentLineNumber(p),
  99               XML_ErrorString(XML_GetErrorCode(p)));
 100       exit(-1);
 101     }
 102
 103     if (done)
 104       break;
 105   }
 106   return 0;
 107 }