1 /* Read an XML document from standard input and print an element
2 outline on standard output.
3 Must be used with Expat compiled for UTF-8 output.
4 __ __ _
5 ___\ \/ /_ __ __ _| |_
6 / _ \\ /| '_ \ / _` | __|
7 | __// \| |_) | (_| | |_
8 \___/_/\_\ .__/ \__,_|\__|
9 |_| XML parser
10
11 Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
12 Copyright (c) 2000-2017 Expat development team
13 Licensed under the MIT license:
14
15 Permission is hereby granted, free of charge, to any person obtaining
16 a copy of this software and associated documentation files (the
17 "Software"), to deal in the Software without restriction, including
18 without limitation the rights to use, copy, modify, merge, publish,
19 distribute, sublicense, and/or sell copies of the Software, and to permit
20 persons to whom the Software is furnished to do so, subject to the
21 following conditions:
22
23 The above copyright notice and this permission notice shall be included
24 in all copies or substantial portions of the Software.
25
26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
29 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
30 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
31 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
32 USE OR OTHER DEALINGS IN THE SOFTWARE.
33 */
34
35 #include <stdio.h>
36 #include <expat.h>
37
38 #ifdef XML_LARGE_SIZE
39 # define XML_FMT_INT_MOD "ll"
40 #else
41 # define XML_FMT_INT_MOD "l"
42 #endif
43
44 #ifdef XML_UNICODE_WCHAR_T
45 # define XML_FMT_STR "ls"
46 #else
47 # define XML_FMT_STR "s"
48 #endif
49
50 #define BUFFSIZE 8192
51
52 char Buff[BUFFSIZE];
53
54 int Depth;
55
56 static void XMLCALL
start(void * data,const XML_Char * el,const XML_Char ** attr)57 start(void *data, const XML_Char *el, const XML_Char **attr) {
58 int i;
59 (void)data;
60
61 for (i = 0; i < Depth; i++)
62 printf(" ");
63
64 printf("%" XML_FMT_STR, el);
65
66 for (i = 0; attr[i]; i += 2) {
67 printf(" %" XML_FMT_STR "='%" XML_FMT_STR "'", attr[i], attr[i + 1]);
68 }
69
70 printf("\n");
71 Depth++;
72 }
73
74 static void XMLCALL
end(void * data,const XML_Char * el)75 end(void *data, const XML_Char *el) {
76 (void)data;
77 (void)el;
78
79 Depth--;
80 }
81
82 int
main(int argc,char * argv[])83 main(int argc, char *argv[]) {
84 XML_Parser p = XML_ParserCreate(NULL);
85 (void)argc;
86 (void)argv;
87
88 if (! p) {
89 fprintf(stderr, "Couldn't allocate memory for parser\n");
90 exit(-1);
91 }
92
93 XML_SetElementHandler(p, start, end);
94
95 for (;;) {
96 int done;
97 int len;
98
99 len = (int)fread(Buff, 1, BUFFSIZE, stdin);
100 if (ferror(stdin)) {
101 fprintf(stderr, "Read error\n");
102 exit(-1);
103 }
104 done = feof(stdin);
105
106 if (XML_Parse(p, Buff, len, done) == XML_STATUS_ERROR) {
107 fprintf(stderr,
108 "Parse error at line %" XML_FMT_INT_MOD "u:\n%" XML_FMT_STR "\n",
109 XML_GetCurrentLineNumber(p),
110 XML_ErrorString(XML_GetErrorCode(p)));
111 exit(-1);
112 }
113
114 if (done)
115 break;
116 }
117 XML_ParserFree(p);
118 return 0;
119 }
120