source: trunk/third/libxml2/testXPath.c @ 20735

Revision 20735, 5.7 KB checked in by ghudson, 20 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r20734, which included commits to RCS files with non-trunk default branches.
Line 
1/*
2 * testXPath.c : a small tester program for XPath.
3 *
4 * See Copyright for the status of this software.
5 *
6 * daniel@veillard.com
7 */
8
9#include "libxml.h"
10#if defined(LIBXML_XPATH_ENABLED) && defined(LIBXML_DEBUG_ENABLED)
11
12#include <string.h>
13
14#ifdef HAVE_SYS_TYPES_H
15#include <sys/types.h>
16#endif
17#ifdef HAVE_SYS_STAT_H
18#include <sys/stat.h>
19#endif
20#ifdef HAVE_FCNTL_H
21#include <fcntl.h>
22#endif
23#ifdef HAVE_UNISTD_H
24#include <unistd.h>
25#endif
26#ifdef HAVE_STDLIB_H
27#include <stdlib.h>
28#endif
29
30
31#include <libxml/xpath.h>
32#include <libxml/tree.h>
33#include <libxml/parser.h>
34#include <libxml/debugXML.h>
35#include <libxml/xmlmemory.h>
36#include <libxml/parserInternals.h>
37#include <libxml/xpathInternals.h>
38#include <libxml/xmlerror.h>
39#include <libxml/globals.h>
40#if defined(LIBXML_XPTR_ENABLED)
41#include <libxml/xpointer.h>
42static int xptr = 0;
43#endif
44static int debug = 0;
45static int valid = 0;
46static int expr = 0;
47static int tree = 0;
48static int nocdata = 0;
49static xmlDocPtr document = NULL;
50
51/*
52 * Default document
53 */
54static xmlChar buffer[] =
55"<?xml version=\"1.0\"?>\n\
56<EXAMPLE prop1=\"gnome is great\" prop2=\"&amp; linux too\">\n\
57  <head>\n\
58   <title>Welcome to Gnome</title>\n\
59  </head>\n\
60  <chapter>\n\
61   <title>The Linux adventure</title>\n\
62   <p>bla bla bla ...</p>\n\
63   <image href=\"linus.gif\"/>\n\
64   <p>...</p>\n\
65  </chapter>\n\
66  <chapter>\n\
67   <title>Chapter 2</title>\n\
68   <p>this is chapter 2 ...</p>\n\
69  </chapter>\n\
70  <chapter>\n\
71   <title>Chapter 3</title>\n\
72   <p>this is chapter 3 ...</p>\n\
73  </chapter>\n\
74</EXAMPLE>\n\
75";
76
77
78static void
79testXPath(const char *str) {
80    xmlXPathObjectPtr res;
81    xmlXPathContextPtr ctxt;
82   
83#if defined(LIBXML_XPTR_ENABLED)
84    if (xptr) {
85        ctxt = xmlXPtrNewContext(document, NULL, NULL);
86        res = xmlXPtrEval(BAD_CAST str, ctxt);
87    } else {
88#endif
89        ctxt = xmlXPathNewContext(document);
90        ctxt->node = xmlDocGetRootElement(document);
91        if (expr)
92            res = xmlXPathEvalExpression(BAD_CAST str, ctxt);
93        else {
94            /* res = xmlXPathEval(BAD_CAST str, ctxt); */
95            xmlXPathCompExprPtr comp;
96
97            comp = xmlXPathCompile(BAD_CAST str);
98            if (comp != NULL) {
99                if (tree)
100                    xmlXPathDebugDumpCompExpr(stdout, comp, 0);
101
102                res = xmlXPathCompiledEval(comp, ctxt);
103                xmlXPathFreeCompExpr(comp);
104            } else
105                res = NULL;
106        }
107#if defined(LIBXML_XPTR_ENABLED)
108    }
109#endif
110    xmlXPathDebugDumpObject(stdout, res, 0);
111    xmlXPathFreeObject(res);
112    xmlXPathFreeContext(ctxt);
113}
114
115static void
116testXPathFile(const char *filename) {
117    FILE *input;
118    char expression[5000];
119    int len;
120
121    input = fopen(filename, "r");
122    if (input == NULL) {
123        xmlGenericError(xmlGenericErrorContext,
124                "Cannot open %s for reading\n", filename);
125        return;
126    }
127    while (fgets(expression, 4500, input) != NULL) {
128        len = strlen(expression);
129        len--;
130        while ((len >= 0) &&
131               ((expression[len] == '\n') || (expression[len] == '\t') ||
132                (expression[len] == '\r') || (expression[len] == ' '))) len--;
133        expression[len + 1] = 0;     
134        if (len >= 0) {
135            printf("\n========================\nExpression: %s\n", expression) ;
136            testXPath(expression);
137        }
138    }
139
140    fclose(input);
141}
142
143int main(int argc, char **argv) {
144    int i;
145    int strings = 0;
146    int usefile = 0;
147    char *filename = NULL;
148
149    for (i = 1; i < argc ; i++) {
150#if defined(LIBXML_XPTR_ENABLED)
151        if ((!strcmp(argv[i], "-xptr")) || (!strcmp(argv[i], "--xptr")))
152            xptr++;
153        else
154#endif
155        if ((!strcmp(argv[i], "-debug")) || (!strcmp(argv[i], "--debug")))
156            debug++;
157        else if ((!strcmp(argv[i], "-valid")) || (!strcmp(argv[i], "--valid")))
158            valid++;
159        else if ((!strcmp(argv[i], "-expr")) || (!strcmp(argv[i], "--expr")))
160            expr++;
161        else if ((!strcmp(argv[i], "-tree")) || (!strcmp(argv[i], "--tree")))
162            tree++;
163        else if ((!strcmp(argv[i], "-nocdata")) ||
164                 (!strcmp(argv[i], "--nocdata")))
165            nocdata++;
166        else if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input")))
167            filename = argv[++i];
168        else if ((!strcmp(argv[i], "-f")) || (!strcmp(argv[i], "--file")))
169            usefile++;
170    }
171    if (valid != 0) xmlDoValidityCheckingDefaultValue = 1;
172    xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
173    xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS;
174    xmlSubstituteEntitiesDefaultValue = 1;
175    if (nocdata != 0) {
176        xmlDefaultSAXHandlerInit();
177        xmlDefaultSAXHandler.cdataBlock = NULL;
178    }
179    if (document == NULL) {
180        if (filename == NULL)
181            document = xmlReadDoc(buffer,NULL,NULL,0);
182        else
183            document = xmlReadFile(filename,NULL,0);
184    }
185    for (i = 1; i < argc ; i++) {
186        if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input"))) {
187            i++; continue;
188        }
189        if (argv[i][0] != '-') {
190            if (usefile)
191                testXPathFile(argv[i]);
192            else
193                testXPath(argv[i]);
194            strings ++;
195        }
196    }
197    if (strings == 0) {
198        printf("Usage : %s [--debug] [--copy] stringsorfiles ...\n",
199               argv[0]);
200        printf("\tParse the XPath strings and output the result of the parsing\n");
201        printf("\t--debug : dump a debug version of the result\n");
202        printf("\t--valid : switch on DTD support in the parser\n");
203#if defined(LIBXML_XPTR_ENABLED)
204        printf("\t--xptr : expressions are XPointer expressions\n");
205#endif
206        printf("\t--expr : debug XPath expressions only\n");
207        printf("\t--tree : show the compiled XPath tree\n");
208        printf("\t--nocdata : do not generate CDATA nodes\n");
209        printf("\t--input filename : or\n");
210        printf("\t-i filename      : read the document from filename\n");
211        printf("\t--file : or\n");
212        printf("\t-f     : read queries from files, args\n");
213    }
214    if (document != NULL)
215        xmlFreeDoc(document);
216    xmlCleanupParser();
217    xmlMemoryDump();
218
219    return(0);
220}
221#else
222#include <stdio.h>
223int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
224    printf("%s : XPath/Debug support not compiled in\n", argv[0]);
225    return(0);
226}
227#endif /* LIBXML_XPATH_ENABLED */
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