xref: /trunk/main/autodoc/source/parser/cpp/cx_c_pp.cxx (revision 78bc99aa)
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21 
22 #include <precomp.h>
23 #include "cx_c_pp.hxx"
24 
25 
26 
27 // NOT FULLY DECLARED SERVICES
28 #include "c_dealer.hxx"
29 #include <tokens/parseinc.hxx>
30 #include <x_parse.hxx>
31 #include "all_toks.hxx"
32 
33 
34 namespace cpp
35 {
36 
Context_Preprocessor(TkpContext & i_rFollowUpContext)37 Context_Preprocessor::Context_Preprocessor( TkpContext & i_rFollowUpContext )
38     : 	Cx_Base(&i_rFollowUpContext),
39         pContext_Parent(&i_rFollowUpContext),
40         pContext_PP_MacroParams( 0 ),
41         pContext_PP_Definition( new Context_PP_Definition(i_rFollowUpContext) )
42 {
43     pContext_PP_MacroParams = new Context_PP_MacroParams(*pContext_PP_Definition);
44 }
45 
46 void
ReadCharChain(CharacterSource & io_rText)47 Context_Preprocessor::ReadCharChain( CharacterSource &	io_rText )
48 {
49 	jumpOverWhite( io_rText );
50 	jumpToWhite( io_rText );
51     const char * sPP_Keyword = io_rText.CutToken();
52     if ( strcmp(sPP_Keyword, "define") == 0 )
53         ReadDefine(io_rText);
54     else
55         ReadDefault(io_rText);
56 }
57 
58 void
AssignDealer(Distributor & o_rDealer)59 Context_Preprocessor::AssignDealer( Distributor & o_rDealer )
60 {
61     Cx_Base::AssignDealer(o_rDealer);
62     pContext_PP_MacroParams->AssignDealer(o_rDealer);
63     pContext_PP_Definition->AssignDealer(o_rDealer);
64 }
65 
66 void
ReadDefault(CharacterSource & io_rText)67 Context_Preprocessor::ReadDefault( CharacterSource & io_rText )
68 {
69     int o_rCount_BackslashedLineBreaks = 0;
70 	jumpToEol(io_rText,o_rCount_BackslashedLineBreaks);
71     for ( ; o_rCount_BackslashedLineBreaks > 0; --o_rCount_BackslashedLineBreaks )
72         Dealer().Deal_Eol();
73 
74 	if (io_rText.CurChar() != NULCH)
75 		jumpOverEol(io_rText);
76 	io_rText.CutToken();
77     Dealer().Deal_Eol();
78 	SetNewToken(0);
79     SetFollowUpContext( pContext_Parent );
80 }
81 
82 void
ReadDefine(CharacterSource & io_rText)83 Context_Preprocessor::ReadDefine( CharacterSource &	io_rText )
84 {
85 	jumpOverWhite( io_rText );
86     io_rText.CutToken();
87 
88 	char cNext = '\0';
89 	for ( cNext = io_rText.CurChar();
90 		  static_cast<UINT8>(cNext) > 32 AND cNext != '(';
91 		  cNext = io_rText.MoveOn() )
92 	{ }
93 
94     bool bMacro = cNext == '(';
95 
96     if ( NOT bMacro )
97     {
98     	SetNewToken( new Tok_DefineName(io_rText.CutToken()) );
99         SetFollowUpContext( pContext_PP_Definition.Ptr() );
100     }
101     else
102     {
103     	SetNewToken( new Tok_MacroName(io_rText.CutToken()) );
104         io_rText.MoveOn();
105         io_rText.CutToken();
106         SetFollowUpContext( pContext_PP_MacroParams.Ptr() );
107     }
108 }
109 
110 
Context_PP_MacroParams(Cx_Base & i_rFollowUpContext)111 Context_PP_MacroParams::Context_PP_MacroParams( Cx_Base & i_rFollowUpContext )
112     : 	Cx_Base(&i_rFollowUpContext),
113         pContext_PP_Definition(&i_rFollowUpContext)
114 {
115 }
116 
117 void
ReadCharChain(CharacterSource & io_rText)118 Context_PP_MacroParams::ReadCharChain( CharacterSource & io_rText )
119 {
120     uintt nLen;
121 
122 	jumpOverWhite( io_rText );
123     // KORR_FUTURE Handling line breaks within macro parameters:
124 	char cSeparator = jumpTo( io_rText, ',', ')' );
125     csv_assert( cSeparator != 0 );
126 
127     static char cBuf[500];
128     // KORR_FUTURE, make it still safer, here:
129     strcpy( cBuf, io_rText.CutToken() );    // SAFE STRCPY (#100211# - checked)
130     for ( nLen = strlen(cBuf);
131           nLen > 0 AND cBuf[nLen-1] < 33;
132           --nLen )
133     { }
134     cBuf[nLen] = '\0';
135 	SetNewToken( new Tok_MacroParameter(cBuf) );
136 
137     io_rText.MoveOn();
138     io_rText.CutToken();
139     if ( cSeparator == ',')
140         SetFollowUpContext( this );
141     else    // Must be ')'
142         SetFollowUpContext( pContext_PP_Definition );
143 }
144 
Context_PP_Definition(TkpContext & i_rFollowUpContext)145 Context_PP_Definition::Context_PP_Definition( TkpContext & i_rFollowUpContext )
146     : 	Cx_Base(&i_rFollowUpContext),
147         pContext_Parent(&i_rFollowUpContext)
148 {
149 }
150 
151 void
ReadCharChain(CharacterSource & io_rText)152 Context_PP_Definition::ReadCharChain( CharacterSource & io_rText )
153 {
154     int o_rCount_BackslashedLineBreaks = 0;
155 	jumpToEol(io_rText,o_rCount_BackslashedLineBreaks);
156     for ( ; o_rCount_BackslashedLineBreaks > 0; --o_rCount_BackslashedLineBreaks )
157         Dealer().Deal_Eol();
158 	SetNewToken( new Tok_PreProDefinition(io_rText.CutToken()) );
159 	if (io_rText.CurChar() != NULCH)
160 		jumpOverEol(io_rText);
161     Dealer().Deal_Eol();
162 }
163 
164 
165 }   // namespace cpp
166 
167 
168 
169 
170 
171 
172 
173 
174 
175