1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
* testXPath.c : a small tester program for XPath.
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*/
#include "libxml.h"
#if defined(LIBXML_XPATH_ENABLED) && defined(LIBXML_DEBUG_ENABLED)
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <libxml/xpath.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/debugXML.h>
#include <libxml/xmlmemory.h>
#include <libxml/parserInternals.h>
#include <libxml/xpathInternals.h>
#include <libxml/xmlerror.h>
#include <libxml/globals.h>
#if defined(LIBXML_XPTR_ENABLED)
#include <libxml/xpointer.h>
static int xptr = 0;
#endif
static int debug = 0;
static int valid = 0;
static int expr = 0;
static int tree = 0;
static int nocdata = 0;
static xmlDocPtr document = NULL;
/*
* Default document
*/
static xmlChar buffer[] =
"<?xml version=\"1.0\"?>\n\
<EXAMPLE prop1=\"gnome is great\" prop2=\"& linux too\">\n\
<head>\n\
<title>Welcome to Gnome</title>\n\
</head>\n\
<chapter>\n\
<title>The Linux adventure</title>\n\
<p>bla bla bla ...</p>\n\
<image href=\"linus.gif\"/>\n\
<p>...</p>\n\
</chapter>\n\
<chapter>\n\
<title>Chapter 2</title>\n\
<p>this is chapter 2 ...</p>\n\
</chapter>\n\
<chapter>\n\
<title>Chapter 3</title>\n\
<p>this is chapter 3 ...</p>\n\
</chapter>\n\
</EXAMPLE>\n\
";
static void
testXPath(const char *str) {
xmlXPathObjectPtr res;
xmlXPathContextPtr ctxt;
#if defined(LIBXML_XPTR_ENABLED)
if (xptr) {
ctxt = xmlXPtrNewContext(document, NULL, NULL);
res = xmlXPtrEval(BAD_CAST str, ctxt);
} else {
#endif
ctxt = xmlXPathNewContext(document);
ctxt->node = xmlDocGetRootElement(document);
if (expr)
res = xmlXPathEvalExpression(BAD_CAST str, ctxt);
else {
/* res = xmlXPathEval(BAD_CAST str, ctxt); */
xmlXPathCompExprPtr comp;
comp = xmlXPathCompile(BAD_CAST str);
if (comp != NULL) {
if (tree)
xmlXPathDebugDumpCompExpr(stdout, comp, 0);
res = xmlXPathCompiledEval(comp, ctxt);
xmlXPathFreeCompExpr(comp);
} else
res = NULL;
}
#if defined(LIBXML_XPTR_ENABLED)
}
#endif
xmlXPathDebugDumpObject(stdout, res, 0);
xmlXPathFreeObject(res);
xmlXPathFreeContext(ctxt);
}
static void
testXPathFile(const char *filename) {
FILE *input;
char expression[5000];
int len;
input = fopen(filename, "r");
if (input == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Cannot open %s for reading\n", filename);
return;
}
while (fgets(expression, 4500, input) != NULL) {
len = strlen(expression);
len--;
while ((len >= 0) &&
((expression[len] == '\n') || (expression[len] == '\t') ||
(expression[len] == '\r') || (expression[len] == ' '))) len--;
expression[len + 1] = 0;
if (len >= 0) {
printf("\n========================\nExpression: %s\n", expression) ;
testXPath(expression);
}
}
fclose(input);
}
int main(int argc, char **argv) {
int i;
int strings = 0;
int usefile = 0;
char *filename = NULL;
for (i = 1; i < argc ; i++) {
#if defined(LIBXML_XPTR_ENABLED)
if ((!strcmp(argv[i], "-xptr")) || (!strcmp(argv[i], "--xptr")))
xptr++;
else
#endif
if ((!strcmp(argv[i], "-debug")) || (!strcmp(argv[i], "--debug")))
debug++;
else if ((!strcmp(argv[i], "-valid")) || (!strcmp(argv[i], "--valid")))
valid++;
else if ((!strcmp(argv[i], "-expr")) || (!strcmp(argv[i], "--expr")))
expr++;
else if ((!strcmp(argv[i], "-tree")) || (!strcmp(argv[i], "--tree")))
tree++;
else if ((!strcmp(argv[i], "-nocdata")) ||
(!strcmp(argv[i], "--nocdata")))
nocdata++;
else if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input")))
filename = argv[++i];
else if ((!strcmp(argv[i], "-f")) || (!strcmp(argv[i], "--file")))
usefile++;
}
if (valid != 0) xmlDoValidityCheckingDefaultValue = 1;
xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS;
if (nocdata != 0) {
xmlDefaultSAXHandlerInit();
xmlDefaultSAXHandler.cdataBlock = NULL;
}
if (document == NULL) {
if (filename == NULL)
document = xmlParseDoc(buffer);
else
document = xmlParseFile(filename);
}
for (i = 1; i < argc ; i++) {
if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input"))) {
i++; continue;
}
if (argv[i][0] != '-') {
if (usefile)
testXPathFile(argv[i]);
else
testXPath(argv[i]);
strings ++;
}
}
if (strings == 0) {
printf("Usage : %s [--debug] [--copy] stringsorfiles ...\n",
argv[0]);
printf("\tParse the XPath strings and output the result of the parsing\n");
printf("\t--debug : dump a debug version of the result\n");
printf("\t--valid : switch on DTD support in the parser\n");
#if defined(LIBXML_XPTR_ENABLED)
printf("\t--xptr : expressions are XPointer expressions\n");
#endif
printf("\t--expr : debug XPath expressions only\n");
printf("\t--tree : show the compiled XPath tree\n");
printf("\t--nocdata : do not generate CDATA nodes\n");
printf("\t--input filename : or\n");
printf("\t-i filename : read the document from filename\n");
printf("\t--file : or\n");
printf("\t-f : read queries from files, args\n");
}
if (document != NULL)
xmlFreeDoc(document);
xmlCleanupParser();
xmlMemoryDump();
return(0);
}
#else
#include <stdio.h>
int main(int argc, char **argv) {
printf("%s : XPath/Debug support not compiled in\n", argv[0]);
return(0);
}
#endif /* LIBXML_XPATH_ENABLED */
|
