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/*
* Copyright 2001-2006 Adrian Thurston <thurston@cs.queensu.ca>
* 2004 Erich Ocean <eric.ocean@ampede.com>
* 2005 Alan West <alan@alanz.com>
*/
/* 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 _FSMCODEGEN_H
#define _FSMCODEGEN_H
#include <iostream>
#include <string>
#include <stdio.h>
#include "common.h"
#include "gendata.h"
using std::string;
using std::ostream;
/* Integer array line length. */
#define IALL 8
/* Forwards. */
struct RedFsmAp;
struct RedStateAp;
struct CodeGenData;
struct Action;
struct NameInst;
struct InlineItem;
struct InlineList;
struct RedAction;
struct LongestMatch;
struct LongestMatchPart;
inline string itoa( int i )
{
char buf[16];
sprintf( buf, "%i", i );
return buf;
}
/*
* class FsmCodeGen
*/
class FsmCodeGen : public CodeGenData
{
public:
FsmCodeGen( ostream &out );
virtual ~FsmCodeGen() {}
virtual void finishRagelDef();
virtual void writeInit();
protected:
string FSM_NAME();
string START_STATE_ID();
ostream &ACTIONS_ARRAY();
string GET_WIDE_KEY();
string GET_WIDE_KEY( RedStateAp *state );
string TABS( int level );
string KEY( Key key );
string LDIR_PATH( char *path );
void ACTION( ostream &ret, Action *action, int targState, bool inFinish );
void CONDITION( ostream &ret, Action *condition );
string ALPH_TYPE();
string WIDE_ALPH_TYPE();
string ARRAY_TYPE( unsigned long maxVal );
virtual string ARR_OFF( const string& ptr, const string& offset ) = 0;
virtual string CAST( const string& type ) = 0;
virtual string UINT() = 0;
virtual string NULL_ITEM() = 0;
virtual string POINTER() = 0;
virtual string GET_KEY();
virtual ostream &SWITCH_DEFAULT() = 0;
string P() { return "p"; }
string PE() { return "pe"; }
string ACCESS();
string CS();
string STACK() { return ACCESS() + "stack"; }
string TOP() { return ACCESS() + "top"; }
string TOKSTART() { return ACCESS() + "tokstart"; }
string TOKEND() { return ACCESS() + "tokend"; }
string ACT() { return ACCESS() + "act"; }
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_wi"; }
string TT() { return "_" + DATA_PREFIX() + "trans_targs_wi"; }
string TSA() { return "_" + DATA_PREFIX() + "to_state_actions"; }
string FSA() { return "_" + DATA_PREFIX() + "from_state_actions"; }
string EA() { return "_" + DATA_PREFIX() + "eof_actions"; }
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"; }
void INLINE_LIST( ostream &ret, InlineList *inlineList, int targState, bool inFinish );
virtual void GOTO( ostream &ret, int gotoDest, bool inFinish ) = 0;
virtual void CALL( ostream &ret, int callDest, int targState, bool inFinish ) = 0;
virtual void NEXT( ostream &ret, int nextDest, bool inFinish ) = 0;
virtual void GOTO_EXPR( ostream &ret, InlineItem *ilItem, bool inFinish ) = 0;
virtual void NEXT_EXPR( ostream &ret, InlineItem *ilItem, bool inFinish ) = 0;
virtual void CALL_EXPR( ostream &ret, InlineItem *ilItem,
int targState, bool inFinish ) = 0;
virtual void RET( ostream &ret, bool inFinish ) = 0;
virtual void BREAK( ostream &ret, int targState ) = 0;
virtual void CURS( ostream &ret, bool inFinish ) = 0;
virtual void TARGS( ostream &ret, bool inFinish, int targState ) = 0;
void EXEC( ostream &ret, InlineItem *item, int targState, int inFinish );
void EXECTE( ostream &ret, InlineItem *item, int targState, int inFinish );
void LM_SWITCH( ostream &ret, InlineItem *item, int targState, int inFinish );
void SET_ACT( ostream &ret, InlineItem *item );
void INIT_TOKSTART( ostream &ret, InlineItem *item );
void INIT_ACT( ostream &ret, InlineItem *item );
void SET_TOKSTART( ostream &ret, InlineItem *item );
void SET_TOKEND( ostream &ret, InlineItem *item );
void GET_TOKEND( ostream &ret, InlineItem *item );
void SUB_ACTION( ostream &ret, InlineItem *item,
int targState, bool inFinish );
void STATE_IDS();
string ERROR_STATE();
string FIRST_FINAL_STATE();
virtual string PTR_CONST() = 0;
virtual ostream &OPEN_ARRAY( const string& type, const string& name ) = 0;
virtual ostream &CLOSE_ARRAY() = 0;
virtual ostream &STATIC_VAR( const string& type, const string& name ) = 0;
virtual string CTRL_FLOW() = 0;
ostream &source_warning(const InputLoc &loc);
ostream &source_error(const InputLoc &loc);
unsigned int arrayTypeSize( unsigned long maxVal );
bool outLabelUsed;
bool againLabelUsed;
bool useIndicies;
public:
/* Determine if we should use indicies. */
virtual void calcIndexSize() {}
};
class CCodeGen : virtual public FsmCodeGen
{
public:
CCodeGen( ostream &out ) : FsmCodeGen(out) {}
virtual string NULL_ITEM();
virtual string POINTER();
virtual ostream &SWITCH_DEFAULT();
virtual ostream &OPEN_ARRAY( const string& type, const string& name );
virtual ostream &CLOSE_ARRAY();
virtual ostream &STATIC_VAR( const string& type, const string& name );
virtual string ARR_OFF( const string& ptr, const string& offset );
virtual string CAST( const string& type );
virtual string UINT();
virtual string PTR_CONST();
virtual string CTRL_FLOW();
virtual void writeExports();
};
class DCodeGen : virtual public FsmCodeGen
{
public:
DCodeGen( ostream &out ) : FsmCodeGen(out) {}
virtual string NULL_ITEM();
virtual string POINTER();
virtual ostream &SWITCH_DEFAULT();
virtual ostream &OPEN_ARRAY( const string& type, const string& name );
virtual ostream &CLOSE_ARRAY();
virtual ostream &STATIC_VAR( const string& type, const string& name );
virtual string ARR_OFF( const string& ptr, const string& offset );
virtual string CAST( const string& type );
virtual string UINT();
virtual string PTR_CONST();
virtual string CTRL_FLOW();
virtual void writeExports();
};
#endif /* _FSMCODEGEN_H */
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