## Xalan-C++ API Documentation

### The Xalan C++ XSLT Processor Version 1.10

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# XalanIndentWriter.hpp

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    00001 /*
    00002  * Copyright 1999-2005 The Apache Software Foundation.
    00003  *
    00004  * Licensed under the Apache License, Version 2.0 (the "License");
    00005  * you may not use this file except in compliance with the License.
    00006  * You may obtain a copy of the License at
    00007  *
    00008  *     http://www.apache.org/licenses/LICENSE-2.0
    00009  *
    00010  * Unless required by applicable law or agreed to in writing, software
    00011  * distributed under the License is distributed on an "AS IS" BASIS,
    00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    00013  * See the License for the specific language governing permissions and
    00014  * limitations under the License.
    00015  */
    00016 #if !defined(XALANIDENTWRITER_HEADER_GUARD_1357924680)
    00017 #define XALANIDENTWRITER_HEADER_GUARD_1357924680
    00018
    00019
    00020 // Base include file.  Must be first.
    00021 #include <xalanc/XMLSupport/XMLSupportDefinitions.hpp>
    00022
    00023 #include <xalanc/Include/XalanVector.hpp>
    00024
    00025 #include <xalanc/PlatformSupport/Writer.hpp>
    00026
    00027
    00028 XALAN_CPP_NAMESPACE_BEGIN
    00029
    00030
    00031 template<class WhiteSpaceWriter,
    00032          class NewLineWriter>
    00033 class XalanIndentWriter
    00034 {
    00035 public:
    00036     typedef typename XalanDOMString::size_type       size_type;
    00037     typedef XalanVector<bool>               BoolStackType;
    00038     typedef typename WhiteSpaceWriter::writer_type   writer_type;
    00039
    00040     XalanIndentWriter(
    00041             writer_type&    writer,
    00042             size_type       ident) :
    00043         m_whiteSpaceWriter(writer),
    00044         m_newLineWriter(writer),
    00045         m_indent(ident),
    00046         m_currentIndent(0),
    00047         m_startNewLine(false),
    00048         m_ispreserve(false),
    00049         m_isprevtext(false),
    00050         m_preserves(writer.getMemoryManager(), 5)
    00051     {
    00052         assert( m_indent != -1);
    00053     }
    00054
    00055     ~XalanIndentWriter()
    00056     {
    00057     }
    00058
    00059
    00060     void
    00061     setIndent(size_type value)
    00062     {
    00063         m_indent = value;
    00064     }
    00065
    00066     size_type
    00067     getIndent()const
    00068     {
    00069         return m_indent;
    00070     }
    00071
    00072     void
    00073     indent()
    00074     {
    00075         if( shouldIndent() )
    00076         {
    00077             if(m_startNewLine == true)
    00078             {
    00079                 m_newLineWriter();
    00080             }
    00081
    00082             m_whiteSpaceWriter(m_currentIndent);
    00083
    00084         }
    00085     }
    00086
    00087     void
    00088     increaseIndent()
    00089     {
    00090         m_currentIndent += m_indent;
    00091     }
    00092
    00093     void
    00094     decreaseIndent()
    00095     {
    00096         assert( m_currentIndent >= m_indent);
    00097
    00098         m_currentIndent -= m_indent;
    00099     }
    00100
    00101     void
    00102     setStartNewLine(bool value)
    00103     {
    00104         m_startNewLine = value;
    00105     }
    00106
    00110     void
    00111     outputLineSep()
    00112     {
    00113         m_newLineWriter();
    00114     }
    00115
    00116     void
    00117     setPrevText(bool value)
    00118     {
    00119         m_isprevtext = value;
    00120     }
    00121
    00122     void
    00123     setPreserve(bool value)
    00124     {
    00125         m_ispreserve = value;
    00126     }
    00127
    00128     void
    00129     pop_preserve()
    00130     {
    00131         if ( m_preserves.empty() )
    00132         {
    00133             m_ispreserve = false;
    00134         }
    00135         else
    00136         {
    00137             m_ispreserve = m_preserves.back();
    00138
    00139             m_preserves.pop_back();
    00140         }
    00141     }
    00142
    00143     void
    00144     push_preserve()
    00145     {
    00146         m_preserves.push_back(m_ispreserve);
    00147     }
    00148
    00149 private:
    00150     bool
    00151     shouldIndent() const
    00152     {
    00153        return (!m_ispreserve && !m_isprevtext);
    00154        // return true;
    00155     }
    00156
    00157 private:
    00158
    00159      //data members
    00160
    00161     WhiteSpaceWriter m_whiteSpaceWriter;
    00162
    00163     NewLineWriter    m_newLineWriter;
    00164
    00168      size_type      m_indent;
    00169
    00173      size_type      m_currentIndent;
    00174
    00178      bool        m_startNewLine;
    00179
    00184     bool        m_ispreserve;
    00185
    00190     bool        m_isprevtext;
    00191
    00196     BoolStackType   m_preserves;
    00197 };
    00198
    00199 XALAN_CPP_NAMESPACE_END
    00200
    00201
    00202
    00203 #endif  // XALANIDENTWRITER_HEADER_GUARD_1357924680

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Xalan-C++ XSLT Processor Version 1.10 Copyright © 1999-2004 The Apache Software Foundation. All Rights Reserved.