xref: /PHP-7.2/ext/simplexml/sxe.c (revision 7a7ec01a)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 7                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2018 The PHP Group                                |
6    +----------------------------------------------------------------------+
7    | This source file is subject to version 3.01 of the PHP license,      |
8    | that is bundled with this package in the file LICENSE, and is        |
9    | available through the world-wide-web at the following url:           |
10    | http://www.php.net/license/3_01.txt                                  |
11    | If you did not receive a copy of the PHP license and are unable to   |
12    | obtain it through the world-wide-web, please send a note to          |
13    | license@php.net so we can mail you a copy immediately.               |
14    +----------------------------------------------------------------------+
15    | Authors: Marcus Boerger <helly@php.net>                              |
16    +----------------------------------------------------------------------+
17  */
18 
19 /* $Id$ */
20 
21 #ifdef HAVE_CONFIG_H
22 # include "config.h"
23 #endif
24 
25 #include "php.h"
26 #include "php_ini.h"
27 #include "ext/standard/info.h"
28 #include "zend_interfaces.h"
29 
30 #include "php_simplexml.h"
31 #include "ext/spl/php_spl.h"
32 #include "ext/spl/spl_iterators.h"
33 #include "sxe.h"
34 
35 PHP_SXE_API zend_class_entry *ce_SimpleXMLIterator = NULL;
36 PHP_SXE_API zend_class_entry *ce_SimpleXMLElement;
37 
38 #include "php_simplexml_exports.h"
39 
40 /* {{{ proto void SimpleXMLIterator::rewind()
41  Rewind to first element */
PHP_METHOD(ce_SimpleXMLIterator,rewind)42 PHP_METHOD(ce_SimpleXMLIterator, rewind)
43 {
44 	php_sxe_iterator iter;
45 
46 	if (zend_parse_parameters_none() == FAILURE) {
47 		return;
48 	}
49 
50 	iter.sxe = Z_SXEOBJ_P(getThis());
51 	ce_SimpleXMLElement->iterator_funcs.funcs->rewind((zend_object_iterator*)&iter);
52 }
53 /* }}} */
54 
55 /* {{{ proto bool SimpleXMLIterator::valid()
56  Check whether iteration is valid */
PHP_METHOD(ce_SimpleXMLIterator,valid)57 PHP_METHOD(ce_SimpleXMLIterator, valid)
58 {
59 	php_sxe_object *sxe = Z_SXEOBJ_P(getThis());
60 
61 	if (zend_parse_parameters_none() == FAILURE) {
62 		return;
63 	}
64 
65 	RETURN_BOOL(!Z_ISUNDEF(sxe->iter.data));
66 }
67 /* }}} */
68 
69 /* {{{ proto SimpleXMLIterator SimpleXMLIterator::current()
70  Get current element */
PHP_METHOD(ce_SimpleXMLIterator,current)71 PHP_METHOD(ce_SimpleXMLIterator, current)
72 {
73 	php_sxe_object *sxe = Z_SXEOBJ_P(getThis());
74 	zval *data;
75 
76 	if (zend_parse_parameters_none() == FAILURE) {
77 		return;
78 	}
79 
80 	if (Z_ISUNDEF(sxe->iter.data)) {
81 		return; /* return NULL */
82 	}
83 
84 	data = &sxe->iter.data;
85 	ZVAL_DEREF(data);
86 	ZVAL_COPY(return_value, data);
87 }
88 /* }}} */
89 
90 /* {{{ proto string SimpleXMLIterator::key()
91  Get name of current child element */
PHP_METHOD(ce_SimpleXMLIterator,key)92 PHP_METHOD(ce_SimpleXMLIterator, key)
93 {
94 	xmlNodePtr curnode;
95 	php_sxe_object *intern;
96 	php_sxe_object *sxe = Z_SXEOBJ_P(getThis());
97 
98 	if (zend_parse_parameters_none() == FAILURE) {
99 		return;
100 	}
101 
102 	if (Z_ISUNDEF(sxe->iter.data)) {
103 		RETURN_FALSE;
104 	}
105 
106 	intern = Z_SXEOBJ_P(&sxe->iter.data);
107 	if (intern != NULL && intern->node != NULL) {
108 		curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->node)->node;
109 		RETURN_STRINGL((char*)curnode->name, xmlStrlen(curnode->name));
110 	}
111 
112 	RETURN_FALSE;
113 }
114 /* }}} */
115 
116 /* {{{ proto void SimpleXMLIterator::next()
117  Move to next element */
PHP_METHOD(ce_SimpleXMLIterator,next)118 PHP_METHOD(ce_SimpleXMLIterator, next)
119 {
120 	php_sxe_iterator iter;
121 
122 	if (zend_parse_parameters_none() == FAILURE) {
123 		return;
124 	}
125 
126 	iter.sxe = Z_SXEOBJ_P(getThis());
127 	ce_SimpleXMLElement->iterator_funcs.funcs->move_forward((zend_object_iterator*)&iter);
128 }
129 /* }}} */
130 
131 /* {{{ proto bool SimpleXMLIterator::hasChildren()
132  Check whether element has children (elements) */
PHP_METHOD(ce_SimpleXMLIterator,hasChildren)133 PHP_METHOD(ce_SimpleXMLIterator, hasChildren)
134 {
135 	php_sxe_object *sxe = Z_SXEOBJ_P(getThis());
136 	php_sxe_object *child;
137 	xmlNodePtr      node;
138 
139 	if (zend_parse_parameters_none() == FAILURE) {
140 		return;
141 	}
142 
143 	if (Z_ISUNDEF(sxe->iter.data) || sxe->iter.type == SXE_ITER_ATTRLIST) {
144 		RETURN_FALSE;
145 	}
146 	child = Z_SXEOBJ_P(&sxe->iter.data);
147 
148 	GET_NODE(child, node);
149 	if (node) {
150 		node = node->children;
151 	}
152 	while (node && node->type != XML_ELEMENT_NODE) {
153 		node = node->next;
154 	}
155 	RETURN_BOOL(node ? 1 : 0);
156 }
157 /* }}} */
158 
159 /* {{{ proto SimpleXMLIterator SimpleXMLIterator::getChildren()
160  Get child element iterator */
PHP_METHOD(ce_SimpleXMLIterator,getChildren)161 PHP_METHOD(ce_SimpleXMLIterator, getChildren)
162 {
163 	php_sxe_object *sxe = Z_SXEOBJ_P(getThis());
164 	zval *data;
165 
166 	if (zend_parse_parameters_none() == FAILURE) {
167 		return;
168 	}
169 
170 	if (Z_ISUNDEF(sxe->iter.data) || sxe->iter.type == SXE_ITER_ATTRLIST) {
171 		return; /* return NULL */
172 	}
173 
174 	data = &sxe->iter.data;
175 	ZVAL_DEREF(data);
176 	ZVAL_COPY(return_value, data);
177 }
178 
179 /* {{{ arginfo */
180 ZEND_BEGIN_ARG_INFO(arginfo_simplexmliterator__void, 0)
181 ZEND_END_ARG_INFO()
182 /* }}} */
183 
184 static const zend_function_entry funcs_SimpleXMLIterator[] = {
185 	PHP_ME(ce_SimpleXMLIterator, rewind,                 arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
186 	PHP_ME(ce_SimpleXMLIterator, valid,                  arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
187 	PHP_ME(ce_SimpleXMLIterator, current,                arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
188 	PHP_ME(ce_SimpleXMLIterator, key,                    arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
189 	PHP_ME(ce_SimpleXMLIterator, next,                   arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
190 	PHP_ME(ce_SimpleXMLIterator, hasChildren,            arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
191 	PHP_ME(ce_SimpleXMLIterator, getChildren,            arginfo_simplexmliterator__void, ZEND_ACC_PUBLIC)
192 	PHP_FE_END
193 };
194 /* }}} */
195 
PHP_MINIT_FUNCTION(sxe)196 PHP_MINIT_FUNCTION(sxe) /* {{{ */
197 {
198 	zend_class_entry *pce;
199 	zend_class_entry sxi;
200 
201 	if ((pce = zend_hash_str_find_ptr(CG(class_table), "simplexmlelement", sizeof("SimpleXMLElement") - 1)) == NULL) {
202 		ce_SimpleXMLElement  = NULL;
203 		ce_SimpleXMLIterator = NULL;
204 		return SUCCESS; /* SimpleXML must be initialized before */
205 	}
206 
207 	ce_SimpleXMLElement = pce;
208 
209 	INIT_CLASS_ENTRY_EX(sxi, "SimpleXMLIterator", sizeof("SimpleXMLIterator") - 1, funcs_SimpleXMLIterator);
210 	ce_SimpleXMLIterator = zend_register_internal_class_ex(&sxi, ce_SimpleXMLElement);
211 	ce_SimpleXMLIterator->create_object = ce_SimpleXMLElement->create_object;
212 
213 	zend_class_implements(ce_SimpleXMLIterator, 1, spl_ce_RecursiveIterator);
214 	zend_class_implements(ce_SimpleXMLIterator, 1, zend_ce_countable);
215 
216 	return SUCCESS;
217 }
218 /* }}} */
219 
220 /*
221  * Local variables:
222  * tab-width: 4
223  * c-basic-offset: 4
224  * End:
225  * vim600: fdm=marker
226  * vim: noet sw=4 ts=4
227  */
228