mirror of
https://github.com/php/php-src.git
synced 2024-12-17 13:59:28 +08:00
335 lines
9.0 KiB
C
335 lines
9.0 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 7 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2016 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Christian Stocker <chregu@php.net> |
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| Rob Richards <rrichards@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "php.h"
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#if HAVE_LIBXML && HAVE_DOM
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#include "php_dom.h"
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#include "dom_ce.h"
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typedef struct _nodeIterator nodeIterator;
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struct _nodeIterator {
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int cur;
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int index;
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xmlNode *node;
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};
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typedef struct _notationIterator notationIterator;
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struct _notationIterator {
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int cur;
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int index;
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xmlNotation *notation;
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};
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static void itemHashScanner (void *payload, void *data, xmlChar *name) /* {{{ */
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{
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nodeIterator *priv = (nodeIterator *)data;
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if(priv->cur < priv->index) {
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priv->cur++;
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} else {
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if(priv->node == NULL) {
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priv->node = (xmlNode *)payload;
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}
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}
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}
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/* }}} */
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xmlNodePtr create_notation(const xmlChar *name, const xmlChar *ExternalID, const xmlChar *SystemID) /* {{{ */
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{
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xmlEntityPtr ret;
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ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
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memset(ret, 0, sizeof(xmlEntity));
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ret->type = XML_NOTATION_NODE;
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ret->name = xmlStrdup(name);
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ret->ExternalID = xmlStrdup(ExternalID);
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ret->SystemID = xmlStrdup(SystemID);
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ret->length = 0;
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ret->content = NULL;
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ret->URI = NULL;
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ret->orig = NULL;
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ret->children = NULL;
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ret->parent = NULL;
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ret->doc = NULL;
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ret->_private = NULL;
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ret->last = NULL;
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ret->prev = NULL;
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return((xmlNodePtr) ret);
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}
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/* }}} */
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xmlNode *php_dom_libxml_hash_iter(xmlHashTable *ht, int index) /* {{{ */
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{
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xmlNode *nodep = NULL;
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nodeIterator *iter;
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int htsize;
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if ((htsize = xmlHashSize(ht)) > 0 && index < htsize) {
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iter = emalloc(sizeof(nodeIterator));
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iter->cur = 0;
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iter->index = index;
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iter->node = NULL;
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xmlHashScan(ht, itemHashScanner, iter);
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nodep = iter->node;
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efree(iter);
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return nodep;
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} else {
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return NULL;
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}
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}
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/* }}} */
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xmlNode *php_dom_libxml_notation_iter(xmlHashTable *ht, int index) /* {{{ */
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{
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notationIterator *iter;
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xmlNotation *notep = NULL;
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int htsize;
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if ((htsize = xmlHashSize(ht)) > 0 && index < htsize) {
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iter = emalloc(sizeof(notationIterator));
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iter->cur = 0;
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iter->index = index;
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iter->notation = NULL;
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xmlHashScan(ht, itemHashScanner, iter);
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notep = iter->notation;
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efree(iter);
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return create_notation(notep->name, notep->PublicID, notep->SystemID);
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} else {
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return NULL;
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}
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}
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/* }}} */
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static void php_dom_iterator_dtor(zend_object_iterator *iter) /* {{{ */
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{
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php_dom_iterator *iterator = (php_dom_iterator *)iter;
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zval_ptr_dtor(&iterator->intern.data);
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zval_ptr_dtor(&iterator->curobj);
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}
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/* }}} */
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static int php_dom_iterator_valid(zend_object_iterator *iter) /* {{{ */
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{
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php_dom_iterator *iterator = (php_dom_iterator *)iter;
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if (Z_TYPE(iterator->curobj) != IS_UNDEF) {
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return SUCCESS;
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} else {
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return FAILURE;
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}
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}
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/* }}} */
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zval *php_dom_iterator_current_data(zend_object_iterator *iter) /* {{{ */
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{
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php_dom_iterator *iterator = (php_dom_iterator *)iter;
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return &iterator->curobj;
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}
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/* }}} */
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static void php_dom_iterator_current_key(zend_object_iterator *iter, zval *key) /* {{{ */
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{
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php_dom_iterator *iterator = (php_dom_iterator *)iter;
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zval *object = &iterator->intern.data;
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if (instanceof_function(Z_OBJCE_P(object), dom_nodelist_class_entry)) {
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ZVAL_LONG(key, iter->index);
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} else {
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dom_object *intern = Z_DOMOBJ_P(&iterator->curobj);
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if (intern != NULL && intern->ptr != NULL) {
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xmlNodePtr curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->ptr)->node;
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ZVAL_STRINGL(key, (char *) curnode->name, xmlStrlen(curnode->name));
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} else {
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ZVAL_NULL(key);
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}
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}
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}
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/* }}} */
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static void php_dom_iterator_move_forward(zend_object_iterator *iter) /* {{{ */
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{
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zval *object;
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xmlNodePtr curnode = NULL, basenode;
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dom_object *intern;
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dom_object *nnmap;
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dom_nnodemap_object *objmap;
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int previndex=0;
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HashTable *nodeht;
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zval *entry;
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zend_bool do_curobj_undef = 1;
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php_dom_iterator *iterator = (php_dom_iterator *)iter;
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object = &iterator->intern.data;
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nnmap = Z_DOMOBJ_P(object);
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objmap = (dom_nnodemap_object *)nnmap->ptr;
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intern = Z_DOMOBJ_P(&iterator->curobj);
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if (intern != NULL && intern->ptr != NULL) {
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if (objmap->nodetype != XML_ENTITY_NODE &&
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objmap->nodetype != XML_NOTATION_NODE) {
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if (objmap->nodetype == DOM_NODESET) {
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nodeht = HASH_OF(&objmap->baseobj_zv);
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zend_hash_move_forward(nodeht);
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if ((entry = zend_hash_get_current_data(nodeht))) {
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zval_ptr_dtor(&iterator->curobj);
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ZVAL_UNDEF(&iterator->curobj);
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ZVAL_COPY(&iterator->curobj, entry);
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do_curobj_undef = 0;
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}
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} else {
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curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->ptr)->node;
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if (objmap->nodetype == XML_ATTRIBUTE_NODE ||
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objmap->nodetype == XML_ELEMENT_NODE) {
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curnode = curnode->next;
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} else {
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/* Nav the tree evey time as this is LIVE */
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basenode = dom_object_get_node(objmap->baseobj);
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if (basenode && (basenode->type == XML_DOCUMENT_NODE ||
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basenode->type == XML_HTML_DOCUMENT_NODE)) {
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basenode = xmlDocGetRootElement((xmlDoc *) basenode);
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} else if (basenode) {
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basenode = basenode->children;
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} else {
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goto err;
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}
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curnode = dom_get_elements_by_tag_name_ns_raw(
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basenode, (char *) objmap->ns, (char *) objmap->local, &previndex, iter->index);
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}
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}
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} else {
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if (objmap->nodetype == XML_ENTITY_NODE) {
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curnode = php_dom_libxml_hash_iter(objmap->ht, iter->index);
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} else {
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curnode = php_dom_libxml_notation_iter(objmap->ht, iter->index);
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}
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}
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}
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err:
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if (do_curobj_undef) {
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zval_ptr_dtor(&iterator->curobj);
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ZVAL_UNDEF(&iterator->curobj);
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}
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if (curnode) {
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php_dom_create_object(curnode, &iterator->curobj, objmap->baseobj);
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}
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}
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/* }}} */
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zend_object_iterator_funcs php_dom_iterator_funcs = {
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php_dom_iterator_dtor,
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php_dom_iterator_valid,
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php_dom_iterator_current_data,
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php_dom_iterator_current_key,
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php_dom_iterator_move_forward,
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NULL
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};
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zend_object_iterator *php_dom_get_iterator(zend_class_entry *ce, zval *object, int by_ref) /* {{{ */
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{
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dom_object *intern;
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dom_nnodemap_object *objmap;
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xmlNodePtr nodep, curnode=NULL;
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int curindex = 0;
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HashTable *nodeht;
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zval *entry;
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php_dom_iterator *iterator;
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if (by_ref) {
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zend_error(E_ERROR, "An iterator cannot be used with foreach by reference");
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}
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iterator = emalloc(sizeof(php_dom_iterator));
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zend_iterator_init(&iterator->intern);
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ZVAL_COPY(&iterator->intern.data, object);
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iterator->intern.funcs = &php_dom_iterator_funcs;
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ZVAL_UNDEF(&iterator->curobj);
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intern = Z_DOMOBJ_P(object);
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objmap = (dom_nnodemap_object *)intern->ptr;
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if (objmap != NULL) {
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if (objmap->nodetype != XML_ENTITY_NODE &&
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objmap->nodetype != XML_NOTATION_NODE) {
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if (objmap->nodetype == DOM_NODESET) {
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nodeht = HASH_OF(&objmap->baseobj_zv);
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zend_hash_internal_pointer_reset(nodeht);
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if ((entry = zend_hash_get_current_data(nodeht))) {
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ZVAL_COPY(&iterator->curobj, entry);
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}
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} else {
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nodep = (xmlNode *)dom_object_get_node(objmap->baseobj);
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if (!nodep) {
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goto err;
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}
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if (objmap->nodetype == XML_ATTRIBUTE_NODE || objmap->nodetype == XML_ELEMENT_NODE) {
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if (objmap->nodetype == XML_ATTRIBUTE_NODE) {
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curnode = (xmlNodePtr) nodep->properties;
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} else {
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curnode = (xmlNodePtr) nodep->children;
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}
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} else {
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if (nodep->type == XML_DOCUMENT_NODE || nodep->type == XML_HTML_DOCUMENT_NODE) {
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nodep = xmlDocGetRootElement((xmlDoc *) nodep);
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} else {
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nodep = nodep->children;
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}
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curnode = dom_get_elements_by_tag_name_ns_raw(
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nodep, (char *) objmap->ns, (char *) objmap->local, &curindex, 0);
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}
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}
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} else {
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if (objmap->nodetype == XML_ENTITY_NODE) {
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curnode = php_dom_libxml_hash_iter(objmap->ht, 0);
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} else {
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curnode = php_dom_libxml_notation_iter(objmap->ht, 0);
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}
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}
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}
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err:
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if (curnode) {
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php_dom_create_object(curnode, &iterator->curobj, objmap->baseobj);
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}
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return &iterator->intern;
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}
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/* }}} */
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#endif
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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