mirror of
https://github.com/php/php-src.git
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561 lines
16 KiB
C
561 lines
16 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2014 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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#define PHP_DOM_XPATH_QUERY 0
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#define PHP_DOM_XPATH_EVALUATE 1
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/*
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* class DOMXPath
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*/
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#if defined(LIBXML_XPATH_ENABLED)
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/* {{{ arginfo */
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ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_construct, 0, 0, 1)
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ZEND_ARG_OBJ_INFO(0, doc, DOMDocument, 0)
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ZEND_END_ARG_INFO();
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ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_register_ns, 0, 0, 2)
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ZEND_ARG_INFO(0, prefix)
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ZEND_ARG_INFO(0, uri)
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ZEND_END_ARG_INFO();
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ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_query, 0, 0, 1)
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ZEND_ARG_INFO(0, expr)
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ZEND_ARG_OBJ_INFO(0, context, DOMNode, 1)
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ZEND_ARG_INFO(0, registerNodeNS)
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ZEND_END_ARG_INFO();
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ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_evaluate, 0, 0, 1)
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ZEND_ARG_INFO(0, expr)
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ZEND_ARG_OBJ_INFO(0, context, DOMNode, 1)
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ZEND_ARG_INFO(0, registerNodeNS)
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ZEND_END_ARG_INFO();
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ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_register_php_functions, 0, 0, 0)
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ZEND_END_ARG_INFO();
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/* }}} */
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const zend_function_entry php_dom_xpath_class_functions[] = {
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PHP_ME(domxpath, __construct, arginfo_dom_xpath_construct, ZEND_ACC_PUBLIC)
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PHP_FALIAS(registerNamespace, dom_xpath_register_ns, arginfo_dom_xpath_register_ns)
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PHP_FALIAS(query, dom_xpath_query, arginfo_dom_xpath_query)
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PHP_FALIAS(evaluate, dom_xpath_evaluate, arginfo_dom_xpath_evaluate)
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PHP_FALIAS(registerPhpFunctions, dom_xpath_register_php_functions, arginfo_dom_xpath_register_php_functions)
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PHP_FE_END
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};
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static void dom_xpath_ext_function_php(xmlXPathParserContextPtr ctxt, int nargs, int type) /* {{{ */
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{
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zval retval;
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int result, i;
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int error = 0;
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zend_fcall_info fci;
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xmlXPathObjectPtr obj;
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char *str;
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zend_string *callable = NULL;
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dom_xpath_object *intern;
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TSRMLS_FETCH();
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if (! zend_is_executing(TSRMLS_C)) {
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xmlGenericError(xmlGenericErrorContext,
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"xmlExtFunctionTest: Function called from outside of PHP\n");
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error = 1;
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} else {
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intern = (dom_xpath_object *) ctxt->context->userData;
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if (intern == NULL) {
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xmlGenericError(xmlGenericErrorContext,
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"xmlExtFunctionTest: failed to get the internal object\n");
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error = 1;
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}
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else if (intern->registerPhpFunctions == 0) {
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xmlGenericError(xmlGenericErrorContext,
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"xmlExtFunctionTest: PHP Object did not register PHP functions\n");
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error = 1;
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}
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}
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if (error == 1) {
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for (i = nargs - 1; i >= 0; i--) {
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obj = valuePop(ctxt);
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xmlXPathFreeObject(obj);
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}
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return;
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}
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fci.param_count = nargs - 1;
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if (fci.param_count > 0) {
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fci.params = safe_emalloc(fci.param_count, sizeof(zval), 0);
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}
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/* Reverse order to pop values off ctxt stack */
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for (i = nargs - 2; i >= 0; i--) {
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obj = valuePop(ctxt);
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switch (obj->type) {
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case XPATH_STRING:
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ZVAL_STRING(&fci.params[i], (char *)obj->stringval);
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break;
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case XPATH_BOOLEAN:
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ZVAL_BOOL(&fci.params[i], obj->boolval);
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break;
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case XPATH_NUMBER:
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ZVAL_DOUBLE(&fci.params[i], obj->floatval);
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break;
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case XPATH_NODESET:
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if (type == 1) {
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str = (char *)xmlXPathCastToString(obj);
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ZVAL_STRING(&fci.params[i], str);
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xmlFree(str);
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} else if (type == 2) {
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int j;
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array_init(&fci.params[i]);
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if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
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for (j = 0; j < obj->nodesetval->nodeNr; j++) {
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xmlNodePtr node = obj->nodesetval->nodeTab[j];
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zval child;
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/* not sure, if we need this... it's copied from xpath.c */
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if (node->type == XML_NAMESPACE_DECL) {
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xmlNsPtr curns;
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xmlNodePtr nsparent;
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nsparent = node->_private;
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curns = xmlNewNs(NULL, node->name, NULL);
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if (node->children) {
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curns->prefix = xmlStrdup((xmlChar *) node->children);
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}
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if (node->children) {
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node = xmlNewDocNode(node->doc, NULL, (xmlChar *) node->children, node->name);
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} else {
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node = xmlNewDocNode(node->doc, NULL, (xmlChar *) "xmlns", node->name);
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}
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node->type = XML_NAMESPACE_DECL;
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node->parent = nsparent;
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node->ns = curns;
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}
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php_dom_create_object(node, &child, &intern->dom TSRMLS_CC);
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add_next_index_zval(&fci.params[i], &child);
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}
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}
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}
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break;
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default:
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ZVAL_STRING(&fci.params[i], (char *)xmlXPathCastToString(obj));
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}
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xmlXPathFreeObject(obj);
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}
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fci.size = sizeof(fci);
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fci.function_table = EG(function_table);
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obj = valuePop(ctxt);
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if (obj->stringval == NULL) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Handler name must be a string");
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xmlXPathFreeObject(obj);
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if (fci.param_count > 0) {
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for (i = 0; i < nargs - 1; i++) {
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zval_ptr_dtor(&fci.params[i]);
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}
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efree(fci.params);
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}
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return;
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}
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ZVAL_STRING(&fci.function_name, obj->stringval);
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xmlXPathFreeObject(obj);
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fci.symbol_table = NULL;
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fci.object = NULL;
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fci.retval = &retval;
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fci.no_separation = 0;
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if (!zend_make_callable(&fci.function_name, &callable TSRMLS_CC)) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call handler %s()", callable->val);
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} else if (intern->registerPhpFunctions == 2 && zend_hash_exists(intern->registered_phpfunctions, callable) == 0) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Not allowed to call handler '%s()'.", callable->val);
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/* Push an empty string, so that we at least have an xslt result... */
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valuePush(ctxt, xmlXPathNewString((xmlChar *)""));
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} else {
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result = zend_call_function(&fci, NULL TSRMLS_CC);
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if (result == SUCCESS && Z_TYPE(retval) != IS_UNDEF) {
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if (Z_TYPE(retval) == IS_OBJECT && instanceof_function(Z_OBJCE(retval), dom_node_class_entry TSRMLS_CC)) {
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xmlNode *nodep;
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dom_object *obj;
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if (intern->node_list == NULL) {
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ALLOC_HASHTABLE(intern->node_list);
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zend_hash_init(intern->node_list, 0, NULL, ZVAL_PTR_DTOR, 0);
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}
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GC_REFCOUNT(&retval)++;
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zend_hash_next_index_insert(intern->node_list, &retval);
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obj = Z_XPATHOBJ_P(&retval);
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nodep = dom_object_get_node(obj);
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valuePush(ctxt, xmlXPathNewNodeSet(nodep));
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} else if (Z_TYPE(retval) == IS_FALSE || Z_TYPE(retval) == IS_TRUE) {
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valuePush(ctxt, xmlXPathNewBoolean(Z_TYPE(retval) == IS_TRUE));
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} else if (Z_TYPE(retval) == IS_OBJECT) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "A PHP Object cannot be converted to a XPath-string");
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valuePush(ctxt, xmlXPathNewString((xmlChar *)""));
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} else {
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zend_string *str = zval_get_string(&retval);
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valuePush(ctxt, xmlXPathNewString(str->val));
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STR_RELEASE(str);
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}
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zval_ptr_dtor(&retval);
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}
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}
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STR_RELEASE(callable);
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zval_dtor(&fci.function_name);
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if (fci.param_count > 0) {
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for (i = 0; i < nargs - 1; i++) {
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zval_ptr_dtor(&fci.params[i]);
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}
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efree(fci.params);
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}
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}
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/* }}} */
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static void dom_xpath_ext_function_string_php(xmlXPathParserContextPtr ctxt, int nargs) /* {{{ */
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{
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dom_xpath_ext_function_php(ctxt, nargs, 1);
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}
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/* }}} */
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static void dom_xpath_ext_function_object_php(xmlXPathParserContextPtr ctxt, int nargs) /* {{{ */
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{
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dom_xpath_ext_function_php(ctxt, nargs, 2);
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}
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/* }}} */
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/* {{{ proto void DOMXPath::__construct(DOMDocument doc) U */
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PHP_METHOD(domxpath, __construct)
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{
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zval *id, *doc;
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xmlDocPtr docp = NULL;
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dom_object *docobj;
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dom_xpath_object *intern;
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xmlXPathContextPtr ctx, oldctx;
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zend_error_handling error_handling;
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zend_replace_error_handling(EH_THROW, dom_domexception_class_entry, &error_handling TSRMLS_CC);
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if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "OO", &id, dom_xpath_class_entry, &doc, dom_document_class_entry) == FAILURE) {
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zend_restore_error_handling(&error_handling TSRMLS_CC);
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return;
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}
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zend_restore_error_handling(&error_handling TSRMLS_CC);
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DOM_GET_OBJ(docp, doc, xmlDocPtr, docobj);
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ctx = xmlXPathNewContext(docp);
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if (ctx == NULL) {
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php_dom_throw_error(INVALID_STATE_ERR, 1 TSRMLS_CC);
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RETURN_FALSE;
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}
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intern = Z_XPATHOBJ_P(id);
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if (intern != NULL) {
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oldctx = (xmlXPathContextPtr)intern->dom.ptr;
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if (oldctx != NULL) {
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php_libxml_decrement_doc_ref((php_libxml_node_object *) &intern->dom TSRMLS_CC);
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xmlXPathFreeContext(oldctx);
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}
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xmlXPathRegisterFuncNS (ctx, (const xmlChar *) "functionString",
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(const xmlChar *) "http://php.net/xpath",
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dom_xpath_ext_function_string_php);
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xmlXPathRegisterFuncNS (ctx, (const xmlChar *) "function",
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(const xmlChar *) "http://php.net/xpath",
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dom_xpath_ext_function_object_php);
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intern->dom.ptr = ctx;
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ctx->userData = (void *)intern;
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intern->dom.document = docobj->document;
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php_libxml_increment_doc_ref((php_libxml_node_object *) &intern->dom, docp TSRMLS_CC);
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}
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}
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/* }}} end DOMXPath::__construct */
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/* {{{ document DOMDocument*/
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int dom_xpath_document_read(dom_object *obj, zval *retval TSRMLS_DC)
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{
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xmlDoc *docp = NULL;
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xmlXPathContextPtr ctx = (xmlXPathContextPtr) obj->ptr;
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if (ctx) {
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docp = (xmlDocPtr) ctx->doc;
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}
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php_dom_create_object((xmlNodePtr) docp, retval, obj TSRMLS_CC);
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return SUCCESS;
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}
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/* }}} */
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/* {{{ proto boolean dom_xpath_register_ns(string prefix, string uri); */
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PHP_FUNCTION(dom_xpath_register_ns)
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{
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zval *id;
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xmlXPathContextPtr ctxp;
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int prefix_len, ns_uri_len;
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dom_xpath_object *intern;
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unsigned char *prefix, *ns_uri;
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if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oss", &id, dom_xpath_class_entry, &prefix, &prefix_len, &ns_uri, &ns_uri_len) == FAILURE) {
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return;
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}
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intern = Z_XPATHOBJ_P(id);
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ctxp = (xmlXPathContextPtr) intern->dom.ptr;
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if (ctxp == NULL) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid XPath Context");
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RETURN_FALSE;
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}
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if (xmlXPathRegisterNs(ctxp, prefix, ns_uri) != 0) {
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RETURN_FALSE
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}
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RETURN_TRUE;
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}
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/* }}} */
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static void dom_xpath_iter(zval *baseobj, dom_object *intern) /* {{{ */
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{
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dom_nnodemap_object *mapptr = (dom_nnodemap_object *) intern->ptr;
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ZVAL_COPY_VALUE(&mapptr->baseobj_zv, baseobj);
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mapptr->nodetype = DOM_NODESET;
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}
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/* }}} */
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static void php_xpath_eval(INTERNAL_FUNCTION_PARAMETERS, int type) /* {{{ */
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{
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zval *id, retval, *context = NULL;
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xmlXPathContextPtr ctxp;
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xmlNodePtr nodep = NULL;
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xmlXPathObjectPtr xpathobjp;
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int expr_len, nsnbr = 0, xpath_type;
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dom_xpath_object *intern;
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dom_object *nodeobj;
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char *expr;
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xmlDoc *docp = NULL;
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xmlNsPtr *ns = NULL;
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zend_bool register_node_ns = 1;
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if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os|O!b", &id, dom_xpath_class_entry, &expr, &expr_len, &context, dom_node_class_entry, ®ister_node_ns) == FAILURE) {
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return;
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}
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intern = Z_XPATHOBJ_P(id);
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ctxp = (xmlXPathContextPtr) intern->dom.ptr;
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if (ctxp == NULL) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid XPath Context");
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RETURN_FALSE;
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}
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docp = (xmlDocPtr) ctxp->doc;
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if (docp == NULL) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid XPath Document Pointer");
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RETURN_FALSE;
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}
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if (context != NULL) {
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DOM_GET_OBJ(nodep, context, xmlNodePtr, nodeobj);
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}
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if (!nodep) {
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nodep = xmlDocGetRootElement(docp);
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}
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if (nodep && docp != nodep->doc) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Node From Wrong Document");
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RETURN_FALSE;
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}
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ctxp->node = nodep;
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if (register_node_ns) {
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/* Register namespaces in the node */
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ns = xmlGetNsList(docp, nodep);
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if (ns != NULL) {
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while (ns[nsnbr] != NULL)
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nsnbr++;
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}
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}
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ctxp->namespaces = ns;
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ctxp->nsNr = nsnbr;
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xpathobjp = xmlXPathEvalExpression(expr, ctxp);
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ctxp->node = NULL;
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if (ns != NULL) {
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xmlFree(ns);
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ctxp->namespaces = NULL;
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ctxp->nsNr = 0;
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}
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if (! xpathobjp) {
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RETURN_FALSE;
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}
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if (type == PHP_DOM_XPATH_QUERY) {
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xpath_type = XPATH_NODESET;
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} else {
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xpath_type = xpathobjp->type;
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}
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switch (xpath_type) {
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case XPATH_NODESET:
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{
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int i;
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xmlNodeSetPtr nodesetp;
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array_init(&retval);
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if (xpathobjp->type == XPATH_NODESET && NULL != (nodesetp = xpathobjp->nodesetval)) {
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for (i = 0; i < nodesetp->nodeNr; i++) {
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xmlNodePtr node = nodesetp->nodeTab[i];
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zval child;
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if (node->type == XML_NAMESPACE_DECL) {
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xmlNsPtr curns;
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xmlNodePtr nsparent;
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nsparent = node->_private;
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curns = xmlNewNs(NULL, node->name, NULL);
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if (node->children) {
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curns->prefix = xmlStrdup((char *) node->children);
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}
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if (node->children) {
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node = xmlNewDocNode(docp, NULL, (char *) node->children, node->name);
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} else {
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node = xmlNewDocNode(docp, NULL, "xmlns", node->name);
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}
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node->type = XML_NAMESPACE_DECL;
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node->parent = nsparent;
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node->ns = curns;
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}
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php_dom_create_object(node, &child, &intern->dom TSRMLS_CC);
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add_next_index_zval(&retval, &child);
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}
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}
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php_dom_create_interator(return_value, DOM_NODELIST TSRMLS_CC);
|
|
nodeobj = Z_DOMOBJ_P(return_value);
|
|
dom_xpath_iter(&retval, nodeobj);
|
|
break;
|
|
}
|
|
|
|
case XPATH_BOOLEAN:
|
|
RETVAL_BOOL(xpathobjp->boolval);
|
|
break;
|
|
|
|
case XPATH_NUMBER:
|
|
RETVAL_DOUBLE(xpathobjp->floatval)
|
|
break;
|
|
|
|
case XPATH_STRING:
|
|
RETVAL_STRING(xpathobjp->stringval);
|
|
break;
|
|
|
|
default:
|
|
RETVAL_NULL();
|
|
break;
|
|
}
|
|
|
|
xmlXPathFreeObject(xpathobjp);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ proto DOMNodeList dom_xpath_query(string expr [,DOMNode context [, boolean registerNodeNS]]); */
|
|
PHP_FUNCTION(dom_xpath_query)
|
|
{
|
|
php_xpath_eval(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_DOM_XPATH_QUERY);
|
|
}
|
|
/* }}} end dom_xpath_query */
|
|
|
|
/* {{{ proto mixed dom_xpath_evaluate(string expr [,DOMNode context [, boolean registerNodeNS]]); */
|
|
PHP_FUNCTION(dom_xpath_evaluate)
|
|
{
|
|
php_xpath_eval(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_DOM_XPATH_EVALUATE);
|
|
}
|
|
/* }}} end dom_xpath_evaluate */
|
|
|
|
/* {{{ proto void dom_xpath_register_php_functions() */
|
|
PHP_FUNCTION(dom_xpath_register_php_functions)
|
|
{
|
|
zval *id;
|
|
dom_xpath_object *intern;
|
|
zval *array_value, *entry, new_string;
|
|
zend_string *name;
|
|
|
|
DOM_GET_THIS(id);
|
|
|
|
if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "a", &array_value) == SUCCESS) {
|
|
intern = Z_XPATHOBJ_P(id);
|
|
zend_hash_internal_pointer_reset(Z_ARRVAL_P(array_value));
|
|
while ((entry = zend_hash_get_current_data(Z_ARRVAL_P(array_value)))) {
|
|
zend_string *str = zval_get_string(entry);
|
|
ZVAL_LONG(&new_string,1);
|
|
zend_hash_update(intern->registered_phpfunctions, str, &new_string);
|
|
zend_hash_move_forward(Z_ARRVAL_P(array_value));
|
|
STR_RELEASE(str);
|
|
}
|
|
intern->registerPhpFunctions = 2;
|
|
RETURN_TRUE;
|
|
|
|
} else if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "S", &name) == SUCCESS) {
|
|
intern = Z_XPATHOBJ_P(id);
|
|
|
|
ZVAL_LONG(&new_string, 1);
|
|
zend_hash_update(intern->registered_phpfunctions, name, &new_string);
|
|
intern->registerPhpFunctions = 2;
|
|
} else {
|
|
intern = Z_XPATHOBJ_P(id);
|
|
intern->registerPhpFunctions = 1;
|
|
}
|
|
|
|
}
|
|
/* }}} end dom_xpath_register_php_functions */
|
|
|
|
#endif /* LIBXML_XPATH_ENABLED */
|
|
|
|
#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
|
|
*/
|