| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #include "FunctionString.hpp" |
| |
| |
| |
| #include <xalanc/PlatformSupport/XalanMessageLoader.hpp> |
| |
| |
| |
| #include <xalanc/DOMSupport/DOMServices.hpp> |
| |
| |
| |
| #include "XObjectFactory.hpp" |
| |
| |
| |
| XALAN_CPP_NAMESPACE_BEGIN |
| |
| |
| |
| FunctionString::FunctionString() |
| { |
| } |
| |
| |
| |
| FunctionString::~FunctionString() |
| { |
| } |
| |
| |
| |
| XObjectPtr |
| FunctionString::execute( |
| XPathExecutionContext& executionContext, |
| XalanNode* context, |
| const LocatorType* locator) const |
| { |
| if (context == 0) |
| { |
| XPathExecutionContext::GetAndReleaseCachedString theGuard(executionContext); |
| XalanDOMString& theResult = theGuard.get(); |
| |
| executionContext.error( |
| XalanMessageLoader::getMessage( |
| theResult, |
| XalanMessages::FunctionRequiresNonNullContextNode_1Param, |
| "string"), |
| context, |
| locator); |
| |
| // Dummy return value... |
| return XObjectPtr(); |
| } |
| else |
| { |
| // The XPath standard says that if there are no arguments, |
| // the argument defaults to a node set with the context node |
| // as the only member. The string value of a node set is the |
| // string value of the first node in the node set. |
| // DOMServices::getNodeData() will give us the data. |
| |
| // Get a cached string... |
| XPathExecutionContext::GetAndReleaseCachedString theData(executionContext); |
| |
| XalanDOMString& theString = theData.get(); |
| |
| DOMServices::getNodeData(*context, theString); |
| |
| return executionContext.getXObjectFactory().createString(theData); |
| } |
| } |
| |
| |
| |
| XObjectPtr |
| FunctionString::execute( |
| XPathExecutionContext& executionContext, |
| XalanNode* /* context */, |
| const XObjectPtr arg1, |
| const LocatorType* /* locator */) const |
| { |
| assert(arg1.null() == false); |
| |
| if (arg1->getType() == XObject::eTypeString) |
| { |
| // Since XObjects are reference counted, just return the |
| // argument. |
| return arg1; |
| } |
| else |
| { |
| return executionContext.getXObjectFactory().createStringAdapter(arg1); |
| } |
| } |
| |
| |
| |
| #if defined(XALAN_NO_COVARIANT_RETURN_TYPE) |
| Function* |
| #else |
| FunctionString* |
| #endif |
| FunctionString::clone(MemoryManagerType& theManager) const |
| { |
| return XalanCopyConstruct(theManager, *this); |
| } |
| |
| |
| |
| const XalanDOMString& |
| FunctionString::getError(XalanDOMString& theResult) const |
| { |
| return XalanMessageLoader::getMessage( |
| theResult, |
| XalanMessages::FunctionTakesZeroOrOneArg_1Param, |
| "string()"); |
| } |
| |
| |
| |
| XALAN_CPP_NAMESPACE_END |