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>
42: static int xptr = 0;
43: #endif
44: static int debug = 0;
45: static int valid = 0;
46: static int expr = 0;
47: static int tree = 0;
48: static int nocdata = 0;
49: static xmlDocPtr document = NULL;
50:
51: /*
52: * Default document
53: */
54: static xmlChar buffer[] =
55: "<?xml version=\"1.0\"?>\n\
56: <EXAMPLE prop1=\"gnome is great\" prop2=\"& 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:
78: static void
79: testXPath(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:
115: static void
116: testXPathFile(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:
143: int 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: #ifdef LIBXML_SAX1_ENABLED
176: if (nocdata != 0) {
177: xmlDefaultSAXHandlerInit();
178: xmlDefaultSAXHandler.cdataBlock = NULL;
179: }
180: #endif
181: if (document == NULL) {
182: if (filename == NULL)
183: document = xmlReadDoc(buffer,NULL,NULL,XML_PARSE_COMPACT);
184: else
185: document = xmlReadFile(filename,NULL,XML_PARSE_COMPACT);
186: }
187: for (i = 1; i < argc ; i++) {
188: if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input"))) {
189: i++; continue;
190: }
191: if (argv[i][0] != '-') {
192: if (usefile)
193: testXPathFile(argv[i]);
194: else
195: testXPath(argv[i]);
196: strings ++;
197: }
198: }
199: if (strings == 0) {
200: printf("Usage : %s [--debug] [--copy] stringsorfiles ...\n",
201: argv[0]);
202: printf("\tParse the XPath strings and output the result of the parsing\n");
203: printf("\t--debug : dump a debug version of the result\n");
204: printf("\t--valid : switch on DTD support in the parser\n");
205: #if defined(LIBXML_XPTR_ENABLED)
206: printf("\t--xptr : expressions are XPointer expressions\n");
207: #endif
208: printf("\t--expr : debug XPath expressions only\n");
209: printf("\t--tree : show the compiled XPath tree\n");
210: printf("\t--nocdata : do not generate CDATA nodes\n");
211: printf("\t--input filename : or\n");
212: printf("\t-i filename : read the document from filename\n");
213: printf("\t--file : or\n");
214: printf("\t-f : read queries from files, args\n");
215: }
216: if (document != NULL)
217: xmlFreeDoc(document);
218: xmlCleanupParser();
219: xmlMemoryDump();
220:
221: return(0);
222: }
223: #else
224: #include <stdio.h>
225: int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
226: printf("%s : XPath/Debug support not compiled in\n", argv[0]);
227: return(0);
228: }
229: #endif /* LIBXML_XPATH_ENABLED */
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