38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync/*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * section: Tree
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * synopsis: Creates a tree
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * purpose: Shows how to create document, nodes and dump it to stdout or file.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * usage: tree2 <filename> -Default output: stdout
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * test: tree2 > tree2.tmp ; diff tree2.tmp tree2.res ; rm tree2.tmp
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * author: Lucas Brasilino <brasilino@recife.pe.gov.br>
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * copy: see Copyright for the status of this software
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync#include <stdio.h>
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync#include <libxml/parser.h>
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync#include <libxml/tree.h>
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync#if defined(LIBXML_TREE_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync/*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync *To compile this file using gcc you can type
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync *gcc `xml2-config --cflags --libs` -o tree2 tree2.c
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync/* A simple example how to create DOM. Libxml2 automagically
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * allocates the necessary amount of memory to it.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync*/
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsyncint
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsyncmain(int argc, char **argv)
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync{
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlDocPtr doc = NULL; /* document pointer */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNodePtr root_node = NULL, node = NULL, node1 = NULL;/* node pointers */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlDtdPtr dtd = NULL; /* DTD pointer */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync char buff[256];
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync int i, j;
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync LIBXML_TEST_VERSION;
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * Creates a new document, a node and set it as a root node
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync doc = xmlNewDoc(BAD_CAST "1.0");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync root_node = xmlNewNode(NULL, BAD_CAST "root");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlDocSetRootElement(doc, root_node);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * Creates a DTD declaration. Isn't mandatory.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync dtd = xmlCreateIntSubset(doc, BAD_CAST "root", NULL, BAD_CAST "tree2.dtd");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * xmlNewChild() creates a new node, which is "attached" as child node
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * of root_node node.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNewChild(root_node, NULL, BAD_CAST "node1",
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync BAD_CAST "content of node 1");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * The same as above, but the new child node doesn't have a content
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNewChild(root_node, NULL, BAD_CAST "node2", NULL);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * xmlNewProp() creates attributes, which is "attached" to an node.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * It returns xmlAttrPtr, which isn't used here.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync node =
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNewChild(root_node, NULL, BAD_CAST "node3",
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync BAD_CAST "this node has attributes");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNewProp(node, BAD_CAST "attribute", BAD_CAST "yes");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNewProp(node, BAD_CAST "foo", BAD_CAST "bar");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * Here goes another way to create nodes. xmlNewNode() and xmlNewText
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * creates a node and a text node separately. They are "attached"
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * by xmlAddChild()
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync node = xmlNewNode(NULL, BAD_CAST "node4");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync node1 = xmlNewText(BAD_CAST
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync "other way to create content (which is also a node)");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlAddChild(node, node1);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlAddChild(root_node, node);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * A simple loop that "automates" nodes creation
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync for (i = 5; i < 7; i++) {
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync sprintf(buff, "node%d", i);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync node = xmlNewChild(root_node, NULL, BAD_CAST buff, NULL);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync for (j = 1; j < 4; j++) {
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync sprintf(buff, "node%d%d", i, j);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync node1 = xmlNewChild(node, NULL, BAD_CAST buff, NULL);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlNewProp(node1, BAD_CAST "odd", BAD_CAST((j % 2) ? "no" : "yes"));
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync }
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync }
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * Dumping document to stdio or file
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlSaveFormatFileEnc(argc > 1 ? argv[1] : "-", doc, "UTF-8", 1);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*free the document */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlFreeDoc(doc);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync *Free the global variables that may
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync *have been allocated by the parser.
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlCleanupParser();
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync /*
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync * this is to debug memory for regression tests
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync */
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync xmlMemoryDump();
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync return(0);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync}
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync#else
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsyncint main(void) {
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync fprintf(stderr, "tree support not compiled in\n");
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync exit(1);
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync}
38ae7e4efe803ea78b6499cd05a394db32623e41vboxsync#endif