autodoc/source/parser/cpp/cx_c_pp.cxx

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  30
  31 #include <precomp.h>
  32 #include "cx_c_pp.hxx"
  33
  34
  35
  36 // NOT FULLY DECLARED SERVICES
  37 #include "c_dealer.hxx"
  38 #include <tokens/parseinc.hxx>
  39 #include <x_parse.hxx>
  40 #include "all_toks.hxx"
  41
  42
  43 namespace cpp
  44 {
  45
  46 Context_Preprocessor::Context_Preprocessor( TkpContext & i_rFollowUpContext )
  47     :   Cx_Base(&i_rFollowUpContext),
  48         pContext_Parent(&i_rFollowUpContext),
  49         pContext_PP_MacroParams( 0 ),
  50         pContext_PP_Definition( new Context_PP_Definition(i_rFollowUpContext) )
  51 {
  52     pContext_PP_MacroParams = new Context_PP_MacroParams(*pContext_PP_Definition);
  53 }
  54
  55 void
  56 Context_Preprocessor::ReadCharChain( CharacterSource &  io_rText )
  57 {
  58     jumpOverWhite( io_rText );
  59     jumpToWhite( io_rText );
  60     const char * sPP_Keyword = io_rText.CutToken();
  61     if ( strcmp(sPP_Keyword, "define") == 0 )
  62         ReadDefine(io_rText);
  63     else
  64         ReadDefault(io_rText);
  65 }
  66
  67 void
  68 Context_Preprocessor::AssignDealer( Distributor & o_rDealer )
  69 {
  70     Cx_Base::AssignDealer(o_rDealer);
  71     pContext_PP_MacroParams->AssignDealer(o_rDealer);
  72     pContext_PP_Definition->AssignDealer(o_rDealer);
  73 }
  74
  75 void
  76 Context_Preprocessor::ReadDefault( CharacterSource & io_rText )
  77 {
  78     int o_rCount_BackslashedLineBreaks = 0;
  79     jumpToEol(io_rText,o_rCount_BackslashedLineBreaks);
  80     for ( ; o_rCount_BackslashedLineBreaks > 0; --o_rCount_BackslashedLineBreaks )
  81         Dealer().Deal_Eol();
  82
  83     if (io_rText.CurChar() != NULCH)
  84         jumpOverEol(io_rText);
  85     io_rText.CutToken();
  86     Dealer().Deal_Eol();
  87     SetNewToken(0);
  88     SetFollowUpContext( pContext_Parent );
  89 }
  90
  91 void
  92 Context_Preprocessor::ReadDefine( CharacterSource &     io_rText )
  93 {
  94     jumpOverWhite( io_rText );
  95     io_rText.CutToken();
  96
  97     char cNext = '\0';
  98     for ( cNext = io_rText.CurChar();
  99           static_cast<UINT8>(cNext) > 32 AND cNext != '(';
 100           cNext = io_rText.MoveOn() )
 101     { }
 102
 103     bool bMacro = cNext == '(';
 104
 105     if ( NOT bMacro )
 106     {
 107         SetNewToken( new Tok_DefineName(io_rText.CutToken()) );
 108         SetFollowUpContext( pContext_PP_Definition.Ptr() );
 109     }
 110     else
 111     {
 112         SetNewToken( new Tok_MacroName(io_rText.CutToken()) );
 113         io_rText.MoveOn();
 114         io_rText.CutToken();
 115         SetFollowUpContext( pContext_PP_MacroParams.Ptr() );
 116     }
 117 }
 118
 119
 120 Context_PP_MacroParams::Context_PP_MacroParams( Cx_Base & i_rFollowUpContext )
 121     :   Cx_Base(&i_rFollowUpContext),
 122         pContext_PP_Definition(&i_rFollowUpContext)
 123 {
 124 }
 125
 126 void
 127 Context_PP_MacroParams::ReadCharChain( CharacterSource & io_rText )
 128 {
 129     uintt nLen;
 130
 131     jumpOverWhite( io_rText );
 132     // KORR_FUTURE Handling line breaks within macro parameters:
 133     char cSeparator = jumpTo( io_rText, ',', ')' );
 134     csv_assert( cSeparator != 0 );
 135
 136     static char cBuf[500];
 137     // KORR_FUTURE, make it still safer, here:
 138     strcpy( cBuf, io_rText.CutToken() );    // SAFE STRCPY (#100211# - checked)
 139     for ( nLen = strlen(cBuf);
 140           nLen > 0 AND cBuf[nLen-1] < 33;
 141           --nLen )
 142     { }
 143     cBuf[nLen] = '\0';
 144     SetNewToken( new Tok_MacroParameter(cBuf) );
 145
 146     io_rText.MoveOn();
 147     io_rText.CutToken();
 148     if ( cSeparator == ',')
 149         SetFollowUpContext( this );
 150     else    // Must be ')'
 151         SetFollowUpContext( pContext_PP_Definition );
 152 }
 153
 154 Context_PP_Definition::Context_PP_Definition( TkpContext & i_rFollowUpContext )
 155     :   Cx_Base(&i_rFollowUpContext),
 156         pContext_Parent(&i_rFollowUpContext)
 157 {
 158 }
 159
 160 void
 161 Context_PP_Definition::ReadCharChain( CharacterSource & io_rText )
 162 {
 163     int o_rCount_BackslashedLineBreaks = 0;
 164     jumpToEol(io_rText,o_rCount_BackslashedLineBreaks);
 165     for ( ; o_rCount_BackslashedLineBreaks > 0; --o_rCount_BackslashedLineBreaks )
 166         Dealer().Deal_Eol();
 167     SetNewToken( new Tok_PreProDefinition(io_rText.CutToken()) );
 168     if (io_rText.CurChar() != NULCH)
 169         jumpOverEol(io_rText);
 170     Dealer().Deal_Eol();
 171 }
 172
 173
 174 }   // namespace cpp
 175
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