php-src/ext/dom/nodelist.c

/*
   +----------------------------------------------------------------------+
   | PHP Version 7                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2015 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Christian Stocker <chregu@php.net>                          |
   |          Rob Richards <rrichards@php.net>                            |
   +----------------------------------------------------------------------+
*/

/* $Id$ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#if HAVE_LIBXML && HAVE_DOM
#include "php_dom.h"


/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_nodelist_item, 0, 0, 1)
	ZEND_ARG_INFO(0, index)
ZEND_END_ARG_INFO();
/* }}} */

/*
* class DOMNodeList
*
* URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#ID-536297177
* Since:
*/

const zend_function_entry php_dom_nodelist_class_functions[] = {
	PHP_FALIAS(item, dom_nodelist_item, arginfo_dom_nodelist_item)
	PHP_FE_END
};

/* {{{ length	int
readonly=yes
URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#ID-203510337
Since:
*/
int dom_nodelist_length_read(dom_object *obj, zval *retval)
{
	dom_nnodemap_object *objmap;
	xmlNodePtr nodep, curnode;
	int count = 0;
	HashTable *nodeht;

	objmap = (dom_nnodemap_object *)obj->ptr;
	if (objmap != NULL) {
		if (objmap->ht) {
			count = xmlHashSize(objmap->ht);
		} else {
			if (objmap->nodetype == DOM_NODESET) {
				nodeht = HASH_OF(&objmap->baseobj_zv);
				count = zend_hash_num_elements(nodeht);
			} else {
				nodep = dom_object_get_node(objmap->baseobj);
				if (nodep) {
					if (objmap->nodetype == XML_ATTRIBUTE_NODE || objmap->nodetype == XML_ELEMENT_NODE) {
						curnode = nodep->children;
						if (curnode) {
							count++;
							while (curnode->next != NULL) {
								count++;
								curnode = curnode->next;
							}
						}
					} else {
						if (nodep->type == XML_DOCUMENT_NODE || nodep->type == XML_HTML_DOCUMENT_NODE) {
							nodep = xmlDocGetRootElement((xmlDoc *) nodep);
						} else {
							nodep = nodep->children;
						}
						curnode = dom_get_elements_by_tag_name_ns_raw(
							nodep, (char *) objmap->ns, (char *) objmap->local, &count, -1);
					}
				}
			}
		}
	}

	ZVAL_LONG(retval, count);
	return SUCCESS;
}

/* }}} */

/* {{{ proto DOMNode dom_nodelist_item(int index);
URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#ID-844377136
Since:
*/
PHP_FUNCTION(dom_nodelist_item)
{
	zval *id;
	zend_long index;
	int ret;
	dom_object *intern;
	xmlNodePtr itemnode = NULL;

	dom_nnodemap_object *objmap;
	xmlNodePtr nodep, curnode;
	int count = 0;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &id, dom_nodelist_class_entry, &index) == FAILURE) {
		return;
	}

	if (index >= 0) {
		intern = Z_DOMOBJ_P(id);

		objmap = (dom_nnodemap_object *)intern->ptr;
		if (objmap != NULL) {
			if (objmap->ht) {
				if (objmap->nodetype == XML_ENTITY_NODE) {
					itemnode = php_dom_libxml_hash_iter(objmap->ht, index);
				} else {
					itemnode = php_dom_libxml_notation_iter(objmap->ht, index);
				}
			} else {
				if (objmap->nodetype == DOM_NODESET) {
					HashTable *nodeht = HASH_OF(&objmap->baseobj_zv);
					zval *entry = zend_hash_index_find(nodeht, index);
					if (entry) {
						ZVAL_COPY(return_value, entry);
						return;
					}
				} else if (objmap->baseobj) {
					nodep = dom_object_get_node(objmap->baseobj);
					if (nodep) {
						if (objmap->nodetype == XML_ATTRIBUTE_NODE || objmap->nodetype == XML_ELEMENT_NODE) {
							curnode = nodep->children;
							while (count < index && curnode != NULL) {
								count++;
								curnode = curnode->next;
							}
							itemnode = curnode;
						} else {
							if (nodep->type == XML_DOCUMENT_NODE || nodep->type == XML_HTML_DOCUMENT_NODE) {
								nodep = xmlDocGetRootElement((xmlDoc *) nodep);
							} else {
								nodep = nodep->children;
							}
							itemnode = dom_get_elements_by_tag_name_ns_raw(nodep, (char *) objmap->ns, (char *) objmap->local, &count, index);
						}
					}
				}
			}
		}

		if (itemnode) {
			DOM_RET_OBJ(itemnode, &ret, objmap->baseobj);
			return;
		}
	}

	RETVAL_NULL();
}
/* }}} end dom_nodelist_item */

#endif

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