outline.c revision 1.4 
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
40char Buff[BUFFSIZE];
41
42int Depth;
43
44static void XMLCALL
45start(void *data, const char *el, const char **attr)
46{
47  int i;
48  (void)data;
49
50  for (i = 0; i < Depth; i++)
51    printf("  ");
52
53  printf("%s", el);
54
55  for (i = 0; attr[i]; i += 2) {
56    printf(" %s='%s'", attr[i], attr[i + 1]);
57  }
58
59  printf("\n");
60  Depth++;
61}
62
63static void XMLCALL
64end(void *data, const char *el)
65{
66  (void)data;
67  (void)el;
68
69  Depth--;
70}
71
72int
73main(int argc, char *argv[])
74{
75  XML_Parser p = XML_ParserCreate(NULL);
76  (void)argc;
77  (void)argv;
78
79  if (! p) {
80    fprintf(stderr, "Couldn't allocate memory for parser\n");
81    exit(-1);
82  }
83
84  XML_SetElementHandler(p, start, end);
85
86  for (;;) {
87    int done;
88    int len;
89
90    len = (int)fread(Buff, 1, BUFFSIZE, stdin);
91    if (ferror(stdin)) {
92      fprintf(stderr, "Read error\n");
93      exit(-1);
94    }
95    done = feof(stdin);
96
97    if (XML_Parse(p, Buff, len, done) == XML_STATUS_ERROR) {
98      fprintf(stderr, "Parse error at line %" XML_FMT_INT_MOD "u:\n%s\n",
99              XML_GetCurrentLineNumber(p),
100              XML_ErrorString(XML_GetErrorCode(p)));
101      exit(-1);
102    }
103
104    if (done)
105      break;
106  }
107  XML_ParserFree(p);
108  return 0;
109}
110