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95 lines
2.2 KiB
95 lines
2.2 KiB
/**
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* section: Tree
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* synopsis: Navigates a tree to print element names
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* purpose: Parse a file to a tree, use xmlDocGetRootElement() to
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* get the root element, then walk the document and print
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* all the element name in document order.
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* usage: tree1 filename_or_URL
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* test: tree1 test2.xml > tree1.tmp && diff tree1.tmp $(srcdir)/tree1.res
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* author: Dodji Seketeli
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* copy: see Copyright for the status of this software.
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*/
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#include <stdio.h>
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#include <libxml/parser.h>
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#include <libxml/tree.h>
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#ifdef LIBXML_TREE_ENABLED
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/*
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*To compile this file using gcc you can type
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*gcc `xml2-config --cflags --libs` -o xmlexample libxml2-example.c
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*/
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/**
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* print_element_names:
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* @a_node: the initial xml node to consider.
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*
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* Prints the names of the all the xml elements
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* that are siblings or children of a given xml node.
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*/
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static void
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print_element_names(xmlNode * a_node)
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{
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xmlNode *cur_node = NULL;
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for (cur_node = a_node; cur_node; cur_node = cur_node->next) {
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if (cur_node->type == XML_ELEMENT_NODE) {
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printf("node type: Element, name: %s\n", cur_node->name);
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}
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print_element_names(cur_node->children);
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}
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}
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/**
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* Simple example to parse a file called "file.xml",
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* walk down the DOM, and print the name of the
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* xml elements nodes.
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*/
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int
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main(int argc, char **argv)
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{
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xmlDoc *doc = NULL;
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xmlNode *root_element = NULL;
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if (argc != 2)
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return(1);
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/*
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* this initialize the library and check potential ABI mismatches
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* between the version it was compiled for and the actual shared
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* library used.
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*/
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LIBXML_TEST_VERSION
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/*parse the file and get the DOM */
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doc = xmlReadFile(argv[1], NULL, 0);
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if (doc == NULL) {
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printf("error: could not parse file %s\n", argv[1]);
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}
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/*Get the root element node */
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root_element = xmlDocGetRootElement(doc);
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print_element_names(root_element);
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/*free the document */
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xmlFreeDoc(doc);
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/*
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*Free the global variables that may
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*have been allocated by the parser.
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*/
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xmlCleanupParser();
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return 0;
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}
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#else
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int main(void) {
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fprintf(stderr, "Tree support not compiled in\n");
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exit(1);
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}
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#endif
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