tools/qtconcurrent/codegenerator/src/codegenerator.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the tools applications of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 #include "codegenerator.h"
       
    42 #include <qdebug.h>
       
    43 namespace CodeGenerator
       
    44 {
       
    45 
       
    46 //Convenience constructor so you can say Item("foo")
       
    47 Item::Item(const char * const text) : generator(Text(QByteArray(text)).generator) {}
       
    48 
       
    49 int BaseGenerator::currentCount(GeneratorStack * const stack) const
       
    50 {
       
    51     const int stackSize = stack->count();
       
    52     for (int i = stackSize - 1; i >= 0; --i) {
       
    53         BaseGenerator const * const generator = stack->at(i);
       
    54         switch (generator->type) {
       
    55             case RepeaterType: {
       
    56                 RepeaterGenerator const * const repeater = static_cast<RepeaterGenerator const * const>(generator);
       
    57                 return repeater->currentRepeat;
       
    58             } break;
       
    59             case GroupType: {
       
    60                 GroupGenerator const * const group = static_cast<GroupGenerator const * const>(generator);
       
    61                 return group->currentRepeat;
       
    62             } break;
       
    63             default:
       
    64             break;
       
    65         }
       
    66     }
       
    67     return -1;
       
    68 }
       
    69 
       
    70 int BaseGenerator::repeatCount(GeneratorStack * const stack) const
       
    71 {
       
    72     const int stackSize = stack->count();
       
    73     for (int i = stackSize - 1; i >= 0; --i) {
       
    74         BaseGenerator const * const generator = stack->at(i);
       
    75         switch (generator->type) {
       
    76             case RepeaterType: {
       
    77                 RepeaterGenerator const * const repeater = static_cast<RepeaterGenerator const * const>(generator);
       
    78                 return repeater->currentRepeat;
       
    79             } break;
       
    80 /*            case GroupType: {
       
    81                 GroupGenerator const * const group = static_cast<GroupGenerator const * const>(generator);
       
    82                 return group->currentRepeat;
       
    83             } break;
       
    84 */  
       
    85             default:
       
    86             break;
       
    87         }
       
    88     }
       
    89     return -1;
       
    90 }
       
    91 
       
    92 QByteArray RepeaterGenerator::generate(GeneratorStack * const stack)
       
    93 { 
       
    94     GeneratorStacker stacker(stack, this);
       
    95     QByteArray generated;
       
    96     for (int i = repeatOffset; i < repeatCount + repeatOffset; ++i) {
       
    97         currentRepeat = i;
       
    98         generated += childGenerator->generate(stack);
       
    99     }
       
   100     return generated;
       
   101 };
       
   102 
       
   103 QByteArray GroupGenerator::generate(GeneratorStack * const stack)
       
   104 { 
       
   105     const int repeatCount = currentCount(stack);
       
   106     GeneratorStacker stacker(stack, this);
       
   107     QByteArray generated;
       
   108 
       
   109     if (repeatCount > 0)
       
   110         generated += prefix->generate(stack);
       
   111 
       
   112     for (int i = 1; i <= repeatCount; ++i) {
       
   113         currentRepeat = i;
       
   114         generated += childGenerator->generate(stack);
       
   115         if (i != repeatCount)
       
   116             generated += separator->generate(stack);
       
   117     }
       
   118 
       
   119     if (repeatCount > 0)
       
   120         generated += postfix->generate(stack);
       
   121 
       
   122     return generated;
       
   123 };
       
   124 
       
   125 const Compound operator+(const Item &a, const Item &b)
       
   126 {
       
   127     return Compound(a, b);
       
   128 }
       
   129 
       
   130 const Compound operator+(const Item &a, const char * const text)
       
   131 {
       
   132     return Compound(a, Text(text));
       
   133 }
       
   134 
       
   135 const Compound operator+(const char * const text, const Item &b)
       
   136 {
       
   137     return Compound(Text(text), b);    
       
   138 }
       
   139 
       
   140 }