php-src/ext/dom/dom_iterators.c
Peter Kokot 8d3f8ca12a Remove unused Git attributes ident
The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.
2018-07-25 00:53:25 +02:00

339 lines
9.2 KiB
C

/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 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> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if HAVE_LIBXML && HAVE_DOM
#include "php_dom.h"
#include "dom_ce.h"
typedef struct _nodeIterator nodeIterator;
struct _nodeIterator {
int cur;
int index;
xmlNode *node;
};
typedef struct _notationIterator notationIterator;
struct _notationIterator {
int cur;
int index;
xmlNotation *notation;
};
#if LIBXML_VERSION >= 20908
static void itemHashScanner (void *payload, void *data, const xmlChar *name) /* {{{ */
#else
static void itemHashScanner (void *payload, void *data, xmlChar *name)
#endif
{
nodeIterator *priv = (nodeIterator *)data;
if(priv->cur < priv->index) {
priv->cur++;
} else {
if(priv->node == NULL) {
priv->node = (xmlNode *)payload;
}
}
}
/* }}} */
xmlNodePtr create_notation(const xmlChar *name, const xmlChar *ExternalID, const xmlChar *SystemID) /* {{{ */
{
xmlEntityPtr ret;
ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
memset(ret, 0, sizeof(xmlEntity));
ret->type = XML_NOTATION_NODE;
ret->name = xmlStrdup(name);
ret->ExternalID = xmlStrdup(ExternalID);
ret->SystemID = xmlStrdup(SystemID);
ret->length = 0;
ret->content = NULL;
ret->URI = NULL;
ret->orig = NULL;
ret->children = NULL;
ret->parent = NULL;
ret->doc = NULL;
ret->_private = NULL;
ret->last = NULL;
ret->prev = NULL;
return((xmlNodePtr) ret);
}
/* }}} */
xmlNode *php_dom_libxml_hash_iter(xmlHashTable *ht, int index) /* {{{ */
{
xmlNode *nodep = NULL;
nodeIterator *iter;
int htsize;
if ((htsize = xmlHashSize(ht)) > 0 && index < htsize) {
iter = emalloc(sizeof(nodeIterator));
iter->cur = 0;
iter->index = index;
iter->node = NULL;
xmlHashScan(ht, itemHashScanner, iter);
nodep = iter->node;
efree(iter);
return nodep;
} else {
return NULL;
}
}
/* }}} */
xmlNode *php_dom_libxml_notation_iter(xmlHashTable *ht, int index) /* {{{ */
{
notationIterator *iter;
xmlNotation *notep = NULL;
int htsize;
if ((htsize = xmlHashSize(ht)) > 0 && index < htsize) {
iter = emalloc(sizeof(notationIterator));
iter->cur = 0;
iter->index = index;
iter->notation = NULL;
xmlHashScan(ht, itemHashScanner, iter);
notep = iter->notation;
efree(iter);
return create_notation(notep->name, notep->PublicID, notep->SystemID);
} else {
return NULL;
}
}
/* }}} */
static void php_dom_iterator_dtor(zend_object_iterator *iter) /* {{{ */
{
php_dom_iterator *iterator = (php_dom_iterator *)iter;
zval_ptr_dtor(&iterator->intern.data);
zval_ptr_dtor(&iterator->curobj);
}
/* }}} */
static int php_dom_iterator_valid(zend_object_iterator *iter) /* {{{ */
{
php_dom_iterator *iterator = (php_dom_iterator *)iter;
if (Z_TYPE(iterator->curobj) != IS_UNDEF) {
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
zval *php_dom_iterator_current_data(zend_object_iterator *iter) /* {{{ */
{
php_dom_iterator *iterator = (php_dom_iterator *)iter;
return &iterator->curobj;
}
/* }}} */
static void php_dom_iterator_current_key(zend_object_iterator *iter, zval *key) /* {{{ */
{
php_dom_iterator *iterator = (php_dom_iterator *)iter;
zval *object = &iterator->intern.data;
if (instanceof_function(Z_OBJCE_P(object), dom_nodelist_class_entry)) {
ZVAL_LONG(key, iter->index);
} else {
dom_object *intern = Z_DOMOBJ_P(&iterator->curobj);
if (intern != NULL && intern->ptr != NULL) {
xmlNodePtr curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->ptr)->node;
ZVAL_STRINGL(key, (char *) curnode->name, xmlStrlen(curnode->name));
} else {
ZVAL_NULL(key);
}
}
}
/* }}} */
static void php_dom_iterator_move_forward(zend_object_iterator *iter) /* {{{ */
{
zval *object;
xmlNodePtr curnode = NULL, basenode;
dom_object *intern;
dom_object *nnmap;
dom_nnodemap_object *objmap;
int previndex=0;
HashTable *nodeht;
zval *entry;
zend_bool do_curobj_undef = 1;
php_dom_iterator *iterator = (php_dom_iterator *)iter;
object = &iterator->intern.data;
nnmap = Z_DOMOBJ_P(object);
objmap = (dom_nnodemap_object *)nnmap->ptr;
intern = Z_DOMOBJ_P(&iterator->curobj);
if (intern != NULL && intern->ptr != NULL) {
if (objmap->nodetype != XML_ENTITY_NODE &&
objmap->nodetype != XML_NOTATION_NODE) {
if (objmap->nodetype == DOM_NODESET) {
nodeht = HASH_OF(&objmap->baseobj_zv);
zend_hash_move_forward_ex(nodeht, &iterator->pos);
if ((entry = zend_hash_get_current_data_ex(nodeht, &iterator->pos))) {
zval_ptr_dtor(&iterator->curobj);
ZVAL_UNDEF(&iterator->curobj);
ZVAL_COPY(&iterator->curobj, entry);
do_curobj_undef = 0;
}
} else {
curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->ptr)->node;
if (objmap->nodetype == XML_ATTRIBUTE_NODE ||
objmap->nodetype == XML_ELEMENT_NODE) {
curnode = curnode->next;
} else {
/* Nav the tree evey time as this is LIVE */
basenode = dom_object_get_node(objmap->baseobj);
if (basenode && (basenode->type == XML_DOCUMENT_NODE ||
basenode->type == XML_HTML_DOCUMENT_NODE)) {
basenode = xmlDocGetRootElement((xmlDoc *) basenode);
} else if (basenode) {
basenode = basenode->children;
} else {
goto err;
}
curnode = dom_get_elements_by_tag_name_ns_raw(
basenode, (char *) objmap->ns, (char *) objmap->local, &previndex, iter->index);
}
}
} else {
if (objmap->nodetype == XML_ENTITY_NODE) {
curnode = php_dom_libxml_hash_iter(objmap->ht, iter->index);
} else {
curnode = php_dom_libxml_notation_iter(objmap->ht, iter->index);
}
}
}
err:
if (do_curobj_undef) {
zval_ptr_dtor(&iterator->curobj);
ZVAL_UNDEF(&iterator->curobj);
}
if (curnode) {
php_dom_create_object(curnode, &iterator->curobj, objmap->baseobj);
}
}
/* }}} */
static const zend_object_iterator_funcs php_dom_iterator_funcs = {
php_dom_iterator_dtor,
php_dom_iterator_valid,
php_dom_iterator_current_data,
php_dom_iterator_current_key,
php_dom_iterator_move_forward,
NULL,
NULL
};
zend_object_iterator *php_dom_get_iterator(zend_class_entry *ce, zval *object, int by_ref) /* {{{ */
{
dom_object *intern;
dom_nnodemap_object *objmap;
xmlNodePtr nodep, curnode=NULL;
int curindex = 0;
HashTable *nodeht;
zval *entry;
php_dom_iterator *iterator;
if (by_ref) {
zend_throw_error(NULL, "An iterator cannot be used with foreach by reference");
return NULL;
}
iterator = emalloc(sizeof(php_dom_iterator));
zend_iterator_init(&iterator->intern);
ZVAL_COPY(&iterator->intern.data, object);
iterator->intern.funcs = &php_dom_iterator_funcs;
ZVAL_UNDEF(&iterator->curobj);
intern = Z_DOMOBJ_P(object);
objmap = (dom_nnodemap_object *)intern->ptr;
if (objmap != NULL) {
if (objmap->nodetype != XML_ENTITY_NODE &&
objmap->nodetype != XML_NOTATION_NODE) {
if (objmap->nodetype == DOM_NODESET) {
nodeht = HASH_OF(&objmap->baseobj_zv);
zend_hash_internal_pointer_reset_ex(nodeht, &iterator->pos);
if ((entry = zend_hash_get_current_data_ex(nodeht, &iterator->pos))) {
ZVAL_COPY(&iterator->curobj, entry);
}
} else {
nodep = (xmlNode *)dom_object_get_node(objmap->baseobj);
if (!nodep) {
goto err;
}
if (objmap->nodetype == XML_ATTRIBUTE_NODE || objmap->nodetype == XML_ELEMENT_NODE) {
if (objmap->nodetype == XML_ATTRIBUTE_NODE) {
curnode = (xmlNodePtr) nodep->properties;
} else {
curnode = (xmlNodePtr) nodep->children;
}
} 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, &curindex, 0);
}
}
} else {
if (objmap->nodetype == XML_ENTITY_NODE) {
curnode = php_dom_libxml_hash_iter(objmap->ht, 0);
} else {
curnode = php_dom_libxml_notation_iter(objmap->ht, 0);
}
}
}
err:
if (curnode) {
php_dom_create_object(curnode, &iterator->curobj, objmap->baseobj);
}
return &iterator->intern;
}
/* }}} */
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/