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The Xalan C++ XSLT Processor Version 1.6

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AVT.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  *
00005  * Copyright (c) 1999-2002 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
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00042  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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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(XALAN_AVT_HEADER_GUARD)
00058 #define XALAN_AVT_HEADER_GUARD 
00059 
00060 // Base include file.  Must be first.
00061 #include <xalanc/XSLT/XSLTDefinitions.hpp>
00062 
00063 
00064 
00065 #include <xalanc/XalanDOM/XalanDOMString.hpp>
00066 
00067 
00068 
00069 XALAN_DECLARE_XERCES_CLASS(Locator)
00070 
00071 
00072 
00073 XALAN_CPP_NAMESPACE_BEGIN
00074 
00075 
00076 
00077 typedef XERCES_CPP_NAMESPACE_QUALIFIER Locator  LocatorType;
00078 
00079 
00080 
00081 class AVTPart;
00082 class PrefixResolver;
00083 class XPathExecutionContext;
00084 class XalanNode;
00085 class StringTokenizer;
00086 class StylesheetConstructionContext;
00087 
00088 
00089 
00093 class AVT
00094 {
00095 public:
00096 
00097 #if defined(XALAN_STRICT_ANSI_HEADERS)
00098     typedef std::size_t     size_type;
00099 #else
00100     typedef size_t          size_type;
00101 #endif
00102 
00114     AVT(
00115             StylesheetConstructionContext&  constructionContext,
00116             const LocatorType*              locator,
00117             const XalanDOMChar*             name,
00118             const XalanDOMChar*             stringedValue,
00119             const PrefixResolver&           resolver);
00120 
00121     virtual
00122     ~AVT();
00123 
00129     const XalanDOMString&
00130     getName() const
00131     {
00132         return m_name;
00133     }
00134 
00143     void
00144     evaluate(
00145             XalanDOMString&         buf,
00146             XalanNode*              contextNode,
00147             const PrefixResolver&   prefixResolver,
00148             XPathExecutionContext&  executionContext) const
00149     {
00150         if(m_simpleString != 0)
00151         {
00152             buf.assign(m_simpleString, m_simpleStringLength);
00153         }
00154         else
00155         {
00156             doEvaluate(buf, contextNode, prefixResolver, executionContext);
00157         }
00158     }
00159 
00167     void
00168     evaluate(
00169             XalanDOMString&         buf,
00170             const PrefixResolver&   prefixResolver,
00171             XPathExecutionContext&  executionContext) const
00172     {
00173         if(m_simpleString != 0)
00174         {
00175             buf.assign(m_simpleString, m_simpleStringLength);
00176         }
00177         else
00178         {
00179             doEvaluate(buf, prefixResolver, executionContext);
00180         }
00181     }
00182 
00183 private:
00184 
00185     void
00186     doEvaluate(
00187             XalanDOMString&         buf,
00188             const PrefixResolver&   prefixResolver,
00189             XPathExecutionContext&  executionContext) const;
00190 
00191     void
00192     doEvaluate(
00193             XalanDOMString&         buf,
00194             XalanNode*              contextNode,
00195             const PrefixResolver&   prefixResolver,
00196             XPathExecutionContext&  executionContext) const;
00197 
00198     void
00199     nextToken(
00200             StylesheetConstructionContext&  constructionContext,
00201             const LocatorType*              locator,
00202             StringTokenizer&                tokenizer,
00203             XalanDOMString&                 token);
00204 
00205     // not implemented
00206     AVT(const AVT&);
00207 
00208     AVT&
00209     operator=(const AVT&);
00210 
00211     bool
00212     operator==(const AVT&) const;
00213 
00214 
00215     // Data members...
00216     const AVTPart**                 m_parts;
00217 
00218     size_type                       m_partsSize;
00219 
00220     const XalanDOMChar*             m_simpleString;
00221 
00222     XalanDOMString::size_type       m_simpleStringLength;
00223 
00224     const XalanDOMString&           m_name;
00225 
00226     static const XalanDOMString     s_emptyString;
00227 };
00228 
00229 
00230 
00231 XALAN_CPP_NAMESPACE_END
00232 
00233 
00234 
00235 #endif  // XALAN_AVT_HEADER_GUARD

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