00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * 00005 * Copyright (c) 1999 The Apache Software Foundation. All rights 00006 * reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 00012 * 1. Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in 00017 * the documentation and/or other materials provided with the 00018 * distribution. 00019 * 00020 * 3. The end-user documentation included with the redistribution, 00021 * if any, must include the following acknowledgment: 00022 * "This product includes software developed by the 00023 * Apache Software Foundation (http://www.apache.org/)." 00024 * Alternately, this acknowledgment may appear in the software itself, 00025 * if and wherever such third-party acknowledgments normally appear. 00026 * 00027 * 4. The names "Xalan" and "Apache Software Foundation" must 00028 * not be used to endorse or promote products derived from this 00029 * software without prior written permission. For written 00030 * permission, please contact apache@apache.org. 00031 * 00032 * 5. Products derived from this software may not be called "Apache", 00033 * nor may "Apache" appear in their name, without prior written 00034 * permission of the Apache Software Foundation. 00035 * 00036 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00037 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00038 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00039 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00040 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00041 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00042 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00043 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00044 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00045 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00046 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00047 * SUCH DAMAGE. 00048 * ==================================================================== 00049 * 00050 * This software consists of voluntary contributions made by many 00051 * individuals on behalf of the Apache Software Foundation and was 00052 * originally based on software copyright (c) 1999, International 00053 * Business Machines, Inc., http://www.ibm.com. For more 00054 * information on the Apache Software Foundation, please see 00055 * <http://www.apache.org/>. 00056 */ 00057 #if !defined(FUNCTIONCONTAINS_HEADER_GUARD_1357924680) 00058 #define FUNCTIONCONTAINS_HEADER_GUARD_1357924680 00059 00060 00061 00062 // Base header file. Must be first. 00063 #include <XPath/XPathDefinitions.hpp> 00064 00065 00066 00067 #include <vector> 00068 00069 00070 00071 #include <PlatformSupport/DOMStringHelper.hpp> 00072 00073 00074 00075 // Base class header file... 00076 #include <XPath/Function.hpp> 00077 00078 00079 00080 #include <XPath/XObject.hpp> 00081 #include <XPath/XObjectFactory.hpp> 00082 #include <XPath/XPathExecutionContext.hpp> 00083 00084 00085 00089 // 00090 // These are all inline, even though 00091 // there are virtual functions, because we expect that they will only be 00092 // needed by the XPath class. 00093 class XALAN_XPATH_EXPORT FunctionContains : public Function 00094 { 00095 public: 00096 00097 // These methods are inherited from Function ... 00098 00099 virtual XObject* 00100 execute( 00101 XPathExecutionContext& executionContext, 00102 XalanNode* context, 00103 int /* opPos */, 00104 const XObjectArgVectorType& args) 00105 { 00106 if(args.size() != 2) 00107 { 00108 executionContext.error("The contains() function takes two arguments!", 00109 context); 00110 } 00111 00112 const XalanDOMString& arg1 = args[0]->str(); 00113 const XalanDOMString& arg2 = args[1]->str(); 00114 00115 bool fResult = true; 00116 00117 // If arg2 is empty, then don't bother to check anything. 00118 if (isEmpty(arg2) == false) 00119 { 00120 // Is arg1 empty? 00121 if (isEmpty(arg1) == true) 00122 { 00123 fResult = false; 00124 } 00125 else 00126 { 00127 // OK, both strings have some data, so look for 00128 // the index... 00129 const unsigned int theIndex = indexOf(arg1, arg2); 00130 00131 fResult = theIndex < length(arg1) ? true : false; 00132 } 00133 } 00134 00135 return executionContext.getXObjectFactory().createBoolean(fResult); 00136 } 00137 00138 #if defined(XALAN_NO_COVARIANT_RETURN_TYPE) 00139 virtual Function* 00140 #else 00141 virtual FunctionContains* 00142 #endif 00143 clone() const 00144 { 00145 return new FunctionContains(*this); 00146 } 00147 00148 private: 00149 00150 // Not implemented... 00151 FunctionContains& 00152 operator=(const FunctionContains&); 00153 00154 bool 00155 operator==(const FunctionContains&) const; 00156 }; 00157 00158 00159 00160 #endif // FUNCTIONCONTAINS_HEADER_GUARD_1357924680
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