| /* |
| * section: Tree |
| * synopsis: Creates a tree |
| * purpose: Shows how to create document, nodes and dump it to stdout or file. |
| * usage: tree2 <filename> -Default output: stdout |
| * test: tree2 > tree2.tmp ; diff tree2.tmp tree2.out ; rm tree2.tmp |
| * author: Lucas Brasilino <brasilino@recife.pe.gov.br> |
| * copy: see Copyright for the status of this software |
| */ |
| |
| #include <stdio.h> |
| #include <libxml/parser.h> |
| #include <libxml/tree.h> |
| |
| /* |
| *To compile this file using gcc you can type |
| *gcc `xml2-config --cflags --libs` -o tree2 tree2.c |
| */ |
| |
| /* A simple example how to create DOM. Libxml2 automagically |
| * allocates the necessary amount of memory to it. |
| */ |
| int |
| main(int argc, char **argv) |
| { |
| xmlDocPtr doc = NULL; /* document pointer */ |
| xmlNodePtr root_node = NULL, node = NULL, node1 = NULL;/* node pointers */ |
| xmlDtdPtr dtd = NULL; /* DTD pointer */ |
| char buff[256]; |
| int i, j; |
| |
| LIBXML_TEST_VERSION; |
| |
| /* |
| * Creates a new document, a node and set it as a root node |
| */ |
| doc = xmlNewDoc(BAD_CAST "1.0"); |
| root_node = xmlNewNode(NULL, BAD_CAST "root"); |
| xmlDocSetRootElement(doc, root_node); |
| |
| /* |
| * Creates a DTD declaration. Isn't mandatory. |
| */ |
| dtd = xmlCreateIntSubset(doc, BAD_CAST "root", NULL, BAD_CAST "tree2.dtd"); |
| |
| /* |
| * xmlNewChild() creates a new node, which is "attached" as child node |
| * of root_node node. |
| */ |
| xmlNewChild(root_node, NULL, BAD_CAST "node1", |
| BAD_CAST "content of node 1"); |
| /* |
| * The same as above, but the new child node doesn't have a content |
| */ |
| xmlNewChild(root_node, NULL, BAD_CAST "node2", NULL); |
| |
| /* |
| * xmlNewProp() creates attributes, which is "attached" to an node. |
| * It returns xmlAttrPtr, which isn't used here. |
| */ |
| node = |
| xmlNewChild(root_node, NULL, BAD_CAST "node3", |
| BAD_CAST "this node has attributes"); |
| xmlNewProp(node, BAD_CAST "attribute", BAD_CAST "yes"); |
| xmlNewProp(node, BAD_CAST "foo", BAD_CAST "bar"); |
| |
| /* |
| * Here goes another way to create nodes. xmlNewNode() and xmlNewText |
| * creates a node and a text node separately. They are "attached" |
| * by xmlAddChild() |
| */ |
| node = xmlNewNode(NULL, BAD_CAST "node4"); |
| node1 = xmlNewText(BAD_CAST |
| "other way to create content (which is also a node)"); |
| xmlAddChild(node, node1); |
| xmlAddChild(root_node, node); |
| |
| /* |
| * A simple loop that "automates" nodes creation |
| */ |
| for (i = 5; i < 7; i++) { |
| sprintf(buff, "node%d", i); |
| node = xmlNewChild(root_node, NULL, BAD_CAST buff, NULL); |
| for (j = 1; j < 4; j++) { |
| sprintf(buff, "node%d%d", i, j); |
| node1 = xmlNewChild(node, NULL, BAD_CAST buff, NULL); |
| xmlNewProp(node1, BAD_CAST "odd", BAD_CAST((j % 2) ? "no" : "yes")); |
| } |
| } |
| |
| /* |
| * Dumping document to stdio or file |
| */ |
| xmlSaveFormatFileEnc(argc > 1 ? argv[1] : "-", doc, "UTF-8", 1); |
| |
| /*free the document */ |
| xmlFreeDoc(doc); |
| |
| /* |
| *Free the global variables that may |
| *have been allocated by the parser. |
| */ |
| xmlCleanupParser(); |
| |
| return(0); |
| } |