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/*
* 2007 Victor Hugo Borja <vic@rubyforge.org>
* Copyright 2001-2007 Adrian Thurston <thurston@complang.org>
*/
/* This file is part of Ragel.
*
* Ragel is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Ragel is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Ragel; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _RUBY_CODEGEN_H
#define _RUBY_CODEGEN_H
#include "common.h"
#include "gendata.h"
/* Integer array line length. */
#define IALL 8
class RubyCodeGen : public CodeGenData
{
public:
RubyCodeGen( ostream &out ) : CodeGenData(out) { }
virtual ~RubyCodeGen() {}
protected:
ostream &START_ARRAY_LINE();
ostream &ARRAY_ITEM( string item, int count, bool last );
ostream &END_ARRAY_LINE();
string FSM_NAME();
string START_STATE_ID();
string ERROR_STATE();
string FIRST_FINAL_STATE();
void INLINE_LIST(ostream &ret, GenInlineList *inlineList, int targState, bool inFinish);
string ACCESS();
void ACTION( ostream &ret, GenAction *action, int targState, bool inFinish );
string GET_KEY();
string GET_WIDE_KEY();
string GET_WIDE_KEY( RedStateAp *state );
string KEY( Key key );
string TABS( int level );
string INT( int i );
void CONDITION( ostream &ret, GenAction *condition );
string ALPH_TYPE();
string WIDE_ALPH_TYPE();
string ARRAY_TYPE( unsigned long maxVal );
ostream &ACTIONS_ARRAY();
void STATE_IDS();
string DATA_PREFIX();
string PM() { return "_" + DATA_PREFIX() + "partition_map"; }
string C() { return "_" + DATA_PREFIX() + "cond_spaces"; }
string CK() { return "_" + DATA_PREFIX() + "cond_keys"; }
string K() { return "_" + DATA_PREFIX() + "trans_keys"; }
string I() { return "_" + DATA_PREFIX() + "indicies"; }
string CO() { return "_" + DATA_PREFIX() + "cond_offsets"; }
string KO() { return "_" + DATA_PREFIX() + "key_offsets"; }
string IO() { return "_" + DATA_PREFIX() + "index_offsets"; }
string CL() { return "_" + DATA_PREFIX() + "cond_lengths"; }
string SL() { return "_" + DATA_PREFIX() + "single_lengths"; }
string RL() { return "_" + DATA_PREFIX() + "range_lengths"; }
string A() { return "_" + DATA_PREFIX() + "actions"; }
string TA() { return "_" + DATA_PREFIX() + "trans_actions"; }
string TT() { return "_" + DATA_PREFIX() + "trans_targs"; }
string TSA() { return "_" + DATA_PREFIX() + "to_state_actions"; }
string FSA() { return "_" + DATA_PREFIX() + "from_state_actions"; }
string EA() { return "_" + DATA_PREFIX() + "eof_actions"; }
string ET() { return "_" + DATA_PREFIX() + "eof_trans"; }
string SP() { return "_" + DATA_PREFIX() + "key_spans"; }
string CSP() { return "_" + DATA_PREFIX() + "cond_key_spans"; }
string START() { return DATA_PREFIX() + "start"; }
string ERROR() { return DATA_PREFIX() + "error"; }
string FIRST_FINAL() { return DATA_PREFIX() + "first_final"; }
string CTXDATA() { return DATA_PREFIX() + "ctxdata"; }
public:
string NULL_ITEM();
ostream &OPEN_ARRAY( string type, string name );
ostream &CLOSE_ARRAY();
ostream &STATIC_VAR( string type, string name );
string ARR_OFF( string ptr, string offset );
string P();
string PE();
string vEOF();
string vCS();
string TOP();
string STACK();
string ACT();
string TOKSTART();
string TOKEND();
string DATA();
void finishRagelDef();
unsigned int arrayTypeSize( unsigned long maxVal );
protected:
virtual void writeExports();
virtual void writeInit();
virtual void writeStart();
virtual void writeFirstFinal();
virtual void writeError();
/* Determine if we should use indicies. */
virtual void calcIndexSize();
virtual void BREAK( ostream &ret, int targState ) = 0;
virtual void GOTO( ostream &ret, int gotoDest, bool inFinish ) = 0;
virtual void GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish ) = 0;
virtual void CALL( ostream &ret, int callDest, int targState, bool inFinish ) = 0;
virtual void CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish ) = 0;
virtual void RET( ostream &ret, bool inFinish ) = 0;
virtual void NEXT( ostream &ret, int nextDest, bool inFinish ) = 0;
virtual void NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish ) = 0;
virtual int TO_STATE_ACTION( RedStateAp *state ) = 0;
virtual int FROM_STATE_ACTION( RedStateAp *state ) = 0;
virtual int EOF_ACTION( RedStateAp *state ) = 0;
virtual int TRANS_ACTION( RedTransAp *trans );
void EXEC( ostream &ret, GenInlineItem *item, int targState, int inFinish );
void LM_SWITCH( ostream &ret, GenInlineItem *item, int targState, int inFinish );
void SET_ACT( ostream &ret, GenInlineItem *item );
void INIT_TOKSTART( ostream &ret, GenInlineItem *item );
void INIT_ACT( ostream &ret, GenInlineItem *item );
void SET_TOKSTART( ostream &ret, GenInlineItem *item );
void SET_TOKEND( ostream &ret, GenInlineItem *item );
void GET_TOKEND( ostream &ret, GenInlineItem *item );
void SUB_ACTION( ostream &ret, GenInlineItem *item, int targState, bool inFinish );
protected:
ostream &source_warning(const InputLoc &loc);
ostream &source_error(const InputLoc &loc);
/* fields */
bool outLabelUsed;
bool againLabelUsed;
bool useIndicies;
void genLineDirective( ostream &out );
};
/*
* Local Variables:
* mode: c++
* indent-tabs-mode: 1
* c-file-style: "bsd"
* End:
*/
#endif
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