Daniel Veillard | d9d63d6 | 2003-11-13 11:45:43 +0000 | [diff] [blame] | 1 | /** |
| 2 | * section: Tree |
| 3 | * synopsis: Navigates a tree to print element names |
| 4 | * purpose: Parse a file to a tree, use xmlDocGetRootElement() to |
| 5 | * get the root element, then walk the document and print |
| 6 | * all the element name in document order. |
| 7 | * usage: tree1 filename_or_URL |
| 8 | * test: tree1 test2.xml > tree1.tmp ; diff tree1.tmp tree1.out ; rm tree1.tmp |
| 9 | * author: Dodji Seketeli |
| 10 | * copy: see Copyright for the status of this software. |
| 11 | */ |
| 12 | #include <stdio.h> |
| 13 | #include <libxml/parser.h> |
| 14 | #include <libxml/tree.h> |
| 15 | |
| 16 | /* |
| 17 | *To compile this file using gcc you can type |
| 18 | *gcc `xml2-config --cflags --libs` -o xmlexample libxml2-example.c |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * print_element_names: |
| 23 | * @a_node: the initial xml node to consider. |
| 24 | * |
| 25 | * Prints the names of the all the xml elements |
| 26 | * that are siblings or children of a given xml node. |
| 27 | */ |
William M. Brack | 60f394e | 2003-11-16 06:25:42 +0000 | [diff] [blame] | 28 | static void |
Daniel Veillard | d9d63d6 | 2003-11-13 11:45:43 +0000 | [diff] [blame] | 29 | print_element_names(xmlNode * a_node) |
| 30 | { |
| 31 | xmlNode *cur_node = NULL; |
| 32 | |
| 33 | for (cur_node = a_node; cur_node; cur_node = cur_node->next) { |
| 34 | if (cur_node->type == XML_ELEMENT_NODE) { |
| 35 | printf("node type: Element, name: %s\n", cur_node->name); |
| 36 | } |
| 37 | |
| 38 | print_element_names(cur_node->children); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | |
| 43 | /** |
| 44 | * Simple example to parse a file called "file.xml", |
| 45 | * walk down the DOM, and print the name of the |
| 46 | * xml elements nodes. |
| 47 | */ |
| 48 | int |
| 49 | main(int argc, char **argv) |
| 50 | { |
| 51 | xmlDoc *doc = NULL; |
| 52 | xmlNode *root_element = NULL; |
| 53 | |
| 54 | if (argc != 2) |
| 55 | return(1); |
| 56 | |
| 57 | /* |
| 58 | * this initialize the library and check potential ABI mismatches |
| 59 | * between the version it was compiled for and the actual shared |
| 60 | * library used. |
| 61 | */ |
| 62 | LIBXML_TEST_VERSION |
| 63 | |
| 64 | /*parse the file and get the DOM */ |
| 65 | doc = xmlParseFile(argv[1]); |
| 66 | |
| 67 | if (doc == NULL) { |
| 68 | printf("error: could not parse file file.xml\n"); |
| 69 | } |
| 70 | |
| 71 | /*Get the root element node */ |
| 72 | root_element = xmlDocGetRootElement(doc); |
| 73 | |
| 74 | print_element_names(root_element); |
| 75 | |
| 76 | /*free the document */ |
| 77 | xmlFreeDoc(doc); |
| 78 | |
| 79 | /* |
| 80 | *Free the global variables that may |
| 81 | *have been allocated by the parser. |
| 82 | */ |
| 83 | xmlCleanupParser(); |
| 84 | |
| 85 | return 0; |
| 86 | } |