00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * 00005 * Copyright (c) 2000 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(XALANTRANSCODINGSERVICES_HEADER_GUARD_1357924680) 00058 #define XALANTRANSCODINGSERVICES_HEADER_GUARD_1357924680 00059 00060 00061 00062 // Base include file. Must be first. 00063 #include <PlatformSupport/PlatformSupportDefinitions.hpp> 00064 00065 00066 00067 #include <cassert> 00068 #include <map> 00069 #include <vector> 00070 00071 00072 00073 #include <XalanDOM/XalanDOMString.hpp> 00074 00075 00076 00077 #include <PlatformSupport/XSLException.hpp> 00078 00079 00080 00081 class XalanOutputTranscoder; 00082 00083 00084 00085 class XALAN_PLATFORMSUPPORT_EXPORT XalanTranscodingServices 00086 { 00087 public: 00088 00092 static void 00093 initialize(); 00094 00098 static void 00099 terminate(); 00100 00101 typedef unsigned char XalanXMLByte; 00102 00103 static unsigned int 00104 length(const XalanXMLByte* theBytes) 00105 { 00106 assert(theBytes != 0); 00107 00108 const XalanXMLByte* theCurrentByte = theBytes; 00109 00110 while(*theCurrentByte != 0) 00111 { 00112 ++theCurrentByte; 00113 } 00114 00115 return theCurrentByte - theBytes; 00116 } 00117 00118 #if defined(XALAN_NO_NAMESPACES) 00119 typedef map<XalanDOMString, 00120 XalanDOMChar, 00121 less<XalanDOMString> > MaximumCharacterValueMapType; 00122 #else 00123 typedef std::map<XalanDOMString, 00124 XalanDOMChar> MaximumCharacterValueMapType; 00125 #endif 00126 00127 enum eCode 00128 { 00129 OK, 00130 UnsupportedEncoding, 00131 InternalFailure, 00132 SupportFilesNotFound 00133 }; 00134 00135 00145 static XalanOutputTranscoder* 00146 makeNewTranscoder( 00147 const XalanDOMString& theEncodingName, 00148 eCode& theResult, 00149 unsigned int theBlockSize); 00150 00156 static void 00157 destroyTranscoder(XalanOutputTranscoder* theTranscoder); 00158 00165 static bool 00166 encodingIsUTF8(const XalanDOMChar* theEncodingName); 00167 00174 static bool 00175 encodingIsUTF8(const XalanDOMString& theEncodingName); 00176 00183 static bool 00184 encodingIsUTF16(const XalanDOMChar* theEncodingName); 00185 00192 static bool 00193 encodingIsUTF16(const XalanDOMString& theEncodingName); 00194 00206 static const XalanXMLByte* 00207 getStreamProlog(const XalanDOMString& theEncodingName); 00208 00215 static XalanDOMChar 00216 getMaximumCharacterValue(const XalanDOMString& theEncoding); 00217 00223 static XalanDOMChar 00224 getMaximumCharacterValue(); 00225 00233 static bool 00234 getBytesEqualChars(const XalanDOMString& theEncoding); 00235 00236 static const XalanDOMChar s_utf8String[]; 00237 00238 static const XalanDOMChar s_utf16String[]; 00239 00240 static const XalanDOMChar s_asciiString[]; 00241 00242 static const XalanDOMChar s_usASCIIString[]; 00243 00244 static const XalanDOMChar s_windows1250String[]; 00245 00246 class XALAN_PLATFORMSUPPORT_EXPORT UnrepresentableCharacterException : public XSLException 00247 { 00248 public: 00249 00250 UnrepresentableCharacterException( 00251 XalanDOMChar theCharacter, 00252 const XalanDOMString& theEncoding); 00253 00254 virtual 00255 ~UnrepresentableCharacterException(); 00256 00257 XalanDOMChar 00258 getCharacter() const 00259 { 00260 return m_badCharacter; 00261 } 00262 00263 const XalanDOMString& 00264 getEncoding() const 00265 { 00266 return m_encoding; 00267 } 00268 00269 private: 00270 00271 const XalanDOMChar m_badCharacter; 00272 00273 const XalanDOMString m_encoding; 00274 }; 00275 00276 private: 00277 00278 static const XalanXMLByte s_dummyByteOrderMark[]; 00279 static const XalanXMLByte s_UTF8ByteOrderMark[]; 00280 static const XalanXMLByte s_UTF16ByteOrderMark[]; 00281 00282 static const MaximumCharacterValueMapType& s_maximumCharacterValues; 00283 }; 00284 00285 00286 00287 class XALAN_PLATFORMSUPPORT_EXPORT XalanOutputTranscoder 00288 { 00289 public: 00290 00291 typedef XalanTranscodingServices::XalanXMLByte XalanXMLByte; 00292 typedef XalanTranscodingServices::eCode eCode; 00293 00294 explicit 00295 XalanOutputTranscoder(); 00296 00297 virtual 00298 ~XalanOutputTranscoder(); 00299 00313 virtual eCode 00314 transcode( 00315 const XalanDOMChar* theSourceData, 00316 unsigned int theSourceCount, 00317 XalanXMLByte* theTarget, 00318 unsigned int theTargetSize, 00319 unsigned int& theSourceCharsTranscoded, 00320 unsigned int& theTargetBytesUsed) = 0; 00321 00322 private: 00323 00324 // Not implemented... 00325 XalanOutputTranscoder(const XalanOutputTranscoder& theSource); 00326 00327 bool 00328 operator==(const XalanOutputTranscoder& theRHS) const; 00329 00330 XalanOutputTranscoder& 00331 operator=(const XalanOutputTranscoder& theRHS); 00332 }; 00333 00334 00335 00336 #endif // NULLTEXTOUTPUTSTREAM_HEADER_GUARD_1357924680
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