📄 testxpath.c

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/* * testXPath.c : a small tester program for XPath. * * See Copyright for the status of this software. * * Daniel.Veillard@w3.org */#ifdef WIN32#include "win32config.h"#else#include "config.h"#endif#include "xmlversion.h"#if defined(LIBXML_XPATH_ENABLED) && defined(LIBXML_DEBUG_ENABLED)#include <stdio.h>#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>static int debug = 0;static int expr = 0;static xmlDocPtr document = NULL;/* * Default document */static xmlChar buffer[] = "<?xml version=\"1.0\"?>\n\<EXAMPLE prop1=\"gnome is great\" prop2=\"&amp; 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\  <chapter>\n\   <title>Chapter 4</title>\n\   <p>this is chapter 4 ...</p>\n\  </chapter>\n\  <chapter>\n\   <title>Chapter 5</title>\n\   <p>this is chapter 5 ...</p>\n\  </chapter>\n\</EXAMPLE>\n\";void xmlXPAthDebugDumpNodeSet(FILE *output, xmlNodeSetPtr cur) {    int i;    if (cur == NULL) {	fprintf(output, "NodeSet is NULL !\n");	return;            }    fprintf(output, "Set contains %d nodes:\n", cur->nodeNr);    for (i = 0;i < cur->nodeNr;i++) {        fprintf(output, "%d", i + 1);	if (cur->nodeTab[i] == NULL)	    fprintf(output, " NULL\n");	else if ((cur->nodeTab[i]->type == XML_DOCUMENT_NODE) ||	         (cur->nodeTab[i]->type == XML_HTML_DOCUMENT_NODE))	    fprintf(output, " /\n");	else if (cur->nodeTab[i]->type == XML_ATTRIBUTE_NODE)	    xmlDebugDumpAttr(output, (xmlAttrPtr)cur->nodeTab[i], 2);	else	    xmlDebugDumpOneNode(output, cur->nodeTab[i], 2);    }}void xmlXPAthDebugDumpObject(FILE *output, xmlXPathObjectPtr cur) {    if (cur == NULL) {        fprintf(output, "Object is empty (NULL)\n");	return;    }    switch(cur->type) {        case XPATH_UNDEFINED:	    fprintf(output, "Object is uninitialized\n");	    break;        case XPATH_NODESET:	    fprintf(output, "Object is a Node Set :\n");	    xmlXPAthDebugDumpNodeSet(output, cur->nodesetval);	    break;        case XPATH_BOOLEAN:	    fprintf(output, "Object is a Boolean : ");	    if (cur->boolval) fprintf(output, "true\n");	    else fprintf(output, "false\n");	    break;        case XPATH_NUMBER:	    fprintf(output, "Object is a number : %0g\n", cur->floatval);	    break;        case XPATH_STRING:	    fprintf(output, "Object is a string : ");	    xmlDebugDumpString(output, cur->stringval);	    fprintf(output, "\n");	    break;    }}void testXPath(const char *str) {    xmlXPathObjectPtr res;    xmlXPathContextPtr ctxt;        ctxt = xmlXPathNewContext(document);    if (expr)	res = xmlXPathEvalExpression(BAD_CAST str, ctxt);    else	res = xmlXPathEval(BAD_CAST str, ctxt);    xmlXPAthDebugDumpObject(stdout, res);    xmlXPathFreeObject(res);    xmlXPathFreeContext(ctxt);}void testXPathFile(const char *filename) {    FILE *input;    char expr[5000];    input = fopen(filename, "r");    if (input == NULL) {        fprintf(stderr, "Cannot open %s for reading\n", filename);	return;    }    while (fscanf(input, "%s", expr) != EOF) {        testXPath(expr);    }    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 ((!strcmp(argv[i], "-debug")) || (!strcmp(argv[i], "--debug")))	    debug++;	if ((!strcmp(argv[i], "-expr")) || (!strcmp(argv[i], "--expr")))	    expr++;	if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input")))	    filename = argv[++i];	if ((!strcmp(argv[i], "-f")) || (!strcmp(argv[i], "--file")))	    usefile++;    }    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--expr : debug XPath expressions only\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 */
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