| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| #include <precomp.h> |
| #include "cx_c_pp.hxx" |
| |
| |
| |
| // NOT FULLY DECLARED SERVICES |
| #include "c_dealer.hxx" |
| #include <tokens/parseinc.hxx> |
| #include <x_parse.hxx> |
| #include "all_toks.hxx" |
| |
| |
| namespace cpp |
| { |
| |
| Context_Preprocessor::Context_Preprocessor( TkpContext & i_rFollowUpContext ) |
| : Cx_Base(&i_rFollowUpContext), |
| pContext_Parent(&i_rFollowUpContext), |
| pContext_PP_MacroParams( 0 ), |
| pContext_PP_Definition( new Context_PP_Definition(i_rFollowUpContext) ) |
| { |
| pContext_PP_MacroParams = new Context_PP_MacroParams(*pContext_PP_Definition); |
| } |
| |
| void |
| Context_Preprocessor::ReadCharChain( CharacterSource & io_rText ) |
| { |
| jumpOverWhite( io_rText ); |
| jumpToWhite( io_rText ); |
| const char * sPP_Keyword = io_rText.CutToken(); |
| if ( strcmp(sPP_Keyword, "define") == 0 ) |
| ReadDefine(io_rText); |
| else |
| ReadDefault(io_rText); |
| } |
| |
| void |
| Context_Preprocessor::AssignDealer( Distributor & o_rDealer ) |
| { |
| Cx_Base::AssignDealer(o_rDealer); |
| pContext_PP_MacroParams->AssignDealer(o_rDealer); |
| pContext_PP_Definition->AssignDealer(o_rDealer); |
| } |
| |
| void |
| Context_Preprocessor::ReadDefault( CharacterSource & io_rText ) |
| { |
| int o_rCount_BackslashedLineBreaks = 0; |
| jumpToEol(io_rText,o_rCount_BackslashedLineBreaks); |
| for ( ; o_rCount_BackslashedLineBreaks > 0; --o_rCount_BackslashedLineBreaks ) |
| Dealer().Deal_Eol(); |
| |
| if (io_rText.CurChar() != NULCH) |
| jumpOverEol(io_rText); |
| io_rText.CutToken(); |
| Dealer().Deal_Eol(); |
| SetNewToken(0); |
| SetFollowUpContext( pContext_Parent ); |
| } |
| |
| void |
| Context_Preprocessor::ReadDefine( CharacterSource & io_rText ) |
| { |
| jumpOverWhite( io_rText ); |
| io_rText.CutToken(); |
| |
| char cNext = '\0'; |
| for ( cNext = io_rText.CurChar(); |
| static_cast<UINT8>(cNext) > 32 AND cNext != '('; |
| cNext = io_rText.MoveOn() ) |
| { } |
| |
| bool bMacro = cNext == '('; |
| |
| if ( NOT bMacro ) |
| { |
| SetNewToken( new Tok_DefineName(io_rText.CutToken()) ); |
| SetFollowUpContext( pContext_PP_Definition.Ptr() ); |
| } |
| else |
| { |
| SetNewToken( new Tok_MacroName(io_rText.CutToken()) ); |
| io_rText.MoveOn(); |
| io_rText.CutToken(); |
| SetFollowUpContext( pContext_PP_MacroParams.Ptr() ); |
| } |
| } |
| |
| |
| Context_PP_MacroParams::Context_PP_MacroParams( Cx_Base & i_rFollowUpContext ) |
| : Cx_Base(&i_rFollowUpContext), |
| pContext_PP_Definition(&i_rFollowUpContext) |
| { |
| } |
| |
| void |
| Context_PP_MacroParams::ReadCharChain( CharacterSource & io_rText ) |
| { |
| uintt nLen; |
| |
| jumpOverWhite( io_rText ); |
| // KORR_FUTURE Handling line breaks within macro parameters: |
| char cSeparator = jumpTo( io_rText, ',', ')' ); |
| csv_assert( cSeparator != 0 ); |
| |
| static char cBuf[500]; |
| // KORR_FUTURE, make it still safer, here: |
| strcpy( cBuf, io_rText.CutToken() ); // SAFE STRCPY (#100211# - checked) |
| for ( nLen = strlen(cBuf); |
| nLen > 0 AND cBuf[nLen-1] < 33; |
| --nLen ) |
| { } |
| cBuf[nLen] = '\0'; |
| SetNewToken( new Tok_MacroParameter(cBuf) ); |
| |
| io_rText.MoveOn(); |
| io_rText.CutToken(); |
| if ( cSeparator == ',') |
| SetFollowUpContext( this ); |
| else // Must be ')' |
| SetFollowUpContext( pContext_PP_Definition ); |
| } |
| |
| Context_PP_Definition::Context_PP_Definition( TkpContext & i_rFollowUpContext ) |
| : Cx_Base(&i_rFollowUpContext), |
| pContext_Parent(&i_rFollowUpContext) |
| { |
| } |
| |
| void |
| Context_PP_Definition::ReadCharChain( CharacterSource & io_rText ) |
| { |
| int o_rCount_BackslashedLineBreaks = 0; |
| jumpToEol(io_rText,o_rCount_BackslashedLineBreaks); |
| for ( ; o_rCount_BackslashedLineBreaks > 0; --o_rCount_BackslashedLineBreaks ) |
| Dealer().Deal_Eol(); |
| SetNewToken( new Tok_PreProDefinition(io_rText.CutToken()) ); |
| if (io_rText.CurChar() != NULCH) |
| jumpOverEol(io_rText); |
| Dealer().Deal_Eol(); |
| } |
| |
| |
| } // namespace cpp |
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