summaryrefslogtreecommitdiff
path: root/gtk+-mingw/share/doc/libxml2-2.8.0/html/xpath1.c
diff options
context:
space:
mode:
Diffstat (limited to 'gtk+-mingw/share/doc/libxml2-2.8.0/html/xpath1.c')
-rw-r--r--gtk+-mingw/share/doc/libxml2-2.8.0/html/xpath1.c250
1 files changed, 0 insertions, 250 deletions
diff --git a/gtk+-mingw/share/doc/libxml2-2.8.0/html/xpath1.c b/gtk+-mingw/share/doc/libxml2-2.8.0/html/xpath1.c
deleted file mode 100644
index f2f7406..0000000
--- a/gtk+-mingw/share/doc/libxml2-2.8.0/html/xpath1.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/**
- * section: XPath
- * synopsis: Evaluate XPath expression and prints result node set.
- * purpose: Shows how to evaluate XPath expression and register
- * known namespaces in XPath context.
- * usage: xpath1 <xml-file> <xpath-expr> [<known-ns-list>]
- * test: ./xpath1 test3.xml '//child2' > xpath1.tmp ; diff xpath1.tmp xpath1.res ; rm xpath1.tmp
- * author: Aleksey Sanin
- * copy: see Copyright for the status of this software.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-#include <libxml/tree.h>
-#include <libxml/parser.h>
-#include <libxml/xpath.h>
-#include <libxml/xpathInternals.h>
-
-#if defined(LIBXML_XPATH_ENABLED) && defined(LIBXML_SAX1_ENABLED)
-
-
-static void usage(const char *name);
-int execute_xpath_expression(const char* filename, const xmlChar* xpathExpr, const xmlChar* nsList);
-int register_namespaces(xmlXPathContextPtr xpathCtx, const xmlChar* nsList);
-void print_xpath_nodes(xmlNodeSetPtr nodes, FILE* output);
-
-int
-main(int argc, char **argv) {
- /* Parse command line and process file */
- if((argc < 3) || (argc > 4)) {
- fprintf(stderr, "Error: wrong number of arguments.\n");
- usage(argv[0]);
- return(-1);
- }
-
- /* Init libxml */
- xmlInitParser();
- LIBXML_TEST_VERSION
-
- /* Do the main job */
- if(execute_xpath_expression(argv[1], BAD_CAST argv[2], (argc > 3) ? BAD_CAST argv[3] : NULL) < 0) {
- usage(argv[0]);
- return(-1);
- }
-
- /* Shutdown libxml */
- xmlCleanupParser();
-
- /*
- * this is to debug memory for regression tests
- */
- xmlMemoryDump();
- return 0;
-}
-
-/**
- * usage:
- * @name: the program name.
- *
- * Prints usage information.
- */
-static void
-usage(const char *name) {
- assert(name);
-
- fprintf(stderr, "Usage: %s <xml-file> <xpath-expr> [<known-ns-list>]\n", name);
- fprintf(stderr, "where <known-ns-list> is a list of known namespaces\n");
- fprintf(stderr, "in \"<prefix1>=<href1> <prefix2>=href2> ...\" format\n");
-}
-
-/**
- * execute_xpath_expression:
- * @filename: the input XML filename.
- * @xpathExpr: the xpath expression for evaluation.
- * @nsList: the optional list of known namespaces in
- * "<prefix1>=<href1> <prefix2>=href2> ..." format.
- *
- * Parses input XML file, evaluates XPath expression and prints results.
- *
- * Returns 0 on success and a negative value otherwise.
- */
-int
-execute_xpath_expression(const char* filename, const xmlChar* xpathExpr, const xmlChar* nsList) {
- xmlDocPtr doc;
- xmlXPathContextPtr xpathCtx;
- xmlXPathObjectPtr xpathObj;
-
- assert(filename);
- assert(xpathExpr);
-
- /* Load XML document */
- doc = xmlParseFile(filename);
- if (doc == NULL) {
- fprintf(stderr, "Error: unable to parse file \"%s\"\n", filename);
- return(-1);
- }
-
- /* Create xpath evaluation context */
- xpathCtx = xmlXPathNewContext(doc);
- if(xpathCtx == NULL) {
- fprintf(stderr,"Error: unable to create new XPath context\n");
- xmlFreeDoc(doc);
- return(-1);
- }
-
- /* Register namespaces from list (if any) */
- if((nsList != NULL) && (register_namespaces(xpathCtx, nsList) < 0)) {
- fprintf(stderr,"Error: failed to register namespaces list \"%s\"\n", nsList);
- xmlXPathFreeContext(xpathCtx);
- xmlFreeDoc(doc);
- return(-1);
- }
-
- /* Evaluate xpath expression */
- xpathObj = xmlXPathEvalExpression(xpathExpr, xpathCtx);
- if(xpathObj == NULL) {
- fprintf(stderr,"Error: unable to evaluate xpath expression \"%s\"\n", xpathExpr);
- xmlXPathFreeContext(xpathCtx);
- xmlFreeDoc(doc);
- return(-1);
- }
-
- /* Print results */
- print_xpath_nodes(xpathObj->nodesetval, stdout);
-
- /* Cleanup */
- xmlXPathFreeObject(xpathObj);
- xmlXPathFreeContext(xpathCtx);
- xmlFreeDoc(doc);
-
- return(0);
-}
-
-/**
- * register_namespaces:
- * @xpathCtx: the pointer to an XPath context.
- * @nsList: the list of known namespaces in
- * "<prefix1>=<href1> <prefix2>=href2> ..." format.
- *
- * Registers namespaces from @nsList in @xpathCtx.
- *
- * Returns 0 on success and a negative value otherwise.
- */
-int
-register_namespaces(xmlXPathContextPtr xpathCtx, const xmlChar* nsList) {
- xmlChar* nsListDup;
- xmlChar* prefix;
- xmlChar* href;
- xmlChar* next;
-
- assert(xpathCtx);
- assert(nsList);
-
- nsListDup = xmlStrdup(nsList);
- if(nsListDup == NULL) {
- fprintf(stderr, "Error: unable to strdup namespaces list\n");
- return(-1);
- }
-
- next = nsListDup;
- while(next != NULL) {
- /* skip spaces */
- while((*next) == ' ') next++;
- if((*next) == '\0') break;
-
- /* find prefix */
- prefix = next;
- next = (xmlChar*)xmlStrchr(next, '=');
- if(next == NULL) {
- fprintf(stderr,"Error: invalid namespaces list format\n");
- xmlFree(nsListDup);
- return(-1);
- }
- *(next++) = '\0';
-
- /* find href */
- href = next;
- next = (xmlChar*)xmlStrchr(next, ' ');
- if(next != NULL) {
- *(next++) = '\0';
- }
-
- /* do register namespace */
- if(xmlXPathRegisterNs(xpathCtx, prefix, href) != 0) {
- fprintf(stderr,"Error: unable to register NS with prefix=\"%s\" and href=\"%s\"\n", prefix, href);
- xmlFree(nsListDup);
- return(-1);
- }
- }
-
- xmlFree(nsListDup);
- return(0);
-}
-
-/**
- * print_xpath_nodes:
- * @nodes: the nodes set.
- * @output: the output file handle.
- *
- * Prints the @nodes content to @output.
- */
-void
-print_xpath_nodes(xmlNodeSetPtr nodes, FILE* output) {
- xmlNodePtr cur;
- int size;
- int i;
-
- assert(output);
- size = (nodes) ? nodes->nodeNr : 0;
-
- fprintf(output, "Result (%d nodes):\n", size);
- for(i = 0; i < size; ++i) {
- assert(nodes->nodeTab[i]);
-
- if(nodes->nodeTab[i]->type == XML_NAMESPACE_DECL) {
- xmlNsPtr ns;
-
- ns = (xmlNsPtr)nodes->nodeTab[i];
- cur = (xmlNodePtr)ns->next;
- if(cur->ns) {
- fprintf(output, "= namespace \"%s\"=\"%s\" for node %s:%s\n",
- ns->prefix, ns->href, cur->ns->href, cur->name);
- } else {
- fprintf(output, "= namespace \"%s\"=\"%s\" for node %s\n",
- ns->prefix, ns->href, cur->name);
- }
- } else if(nodes->nodeTab[i]->type == XML_ELEMENT_NODE) {
- cur = nodes->nodeTab[i];
- if(cur->ns) {
- fprintf(output, "= element node \"%s:%s\"\n",
- cur->ns->href, cur->name);
- } else {
- fprintf(output, "= element node \"%s\"\n",
- cur->name);
- }
- } else {
- cur = nodes->nodeTab[i];
- fprintf(output, "= node \"%s\": type %d\n", cur->name, cur->type);
- }
- }
-}
-
-#else
-int main(void) {
- fprintf(stderr, "XPath support not compiled in\n");
- exit(1);
-}
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-07 20:07:32 +0000