1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/*
* Copyright 2001-2018 Adrian Thurston <thurston@colm.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _COLM_FSMCODEGEN_H
#define _COLM_FSMCODEGEN_H
#include <stdio.h>
#include <string>
#include <iostream>
#include "keyops.h"
#include "compiler.h"
#include "redfsm.h"
using std::string;
using std::ostream;
/* Integer array line length. */
#define IALL 8
/* Forwards. */
struct RedFsm;
struct RedState;
struct GenAction;
struct NameInst;
struct RedAction;
struct LongestMatch;
struct TokenInstance;
struct InlineList;
struct InlineItem;
struct NameInst;
struct FsmCodeGen;
typedef unsigned long ulong;
typedef unsigned char uchar;
/*
* The interface to the parser
*/
std::ostream *openOutput( char *inputFile );
inline string itoa( int i )
{
char buf[16];
sprintf( buf, "%i", i );
return buf;
}
/*
* class FsmCodeGen
*/
struct FsmCodeGen
{
public:
FsmCodeGen( ostream &out, RedFsm *redFsm, fsm_tables *fsmTables );
protected:
string FSM_NAME();
string START_STATE_ID();
ostream &ACTIONS_ARRAY();
string GET_WIDE_KEY();
string GET_WIDE_KEY( RedState *state );
string TABS( int level );
string KEY( Key key );
string LDIR_PATH( char *path );
void ACTION( ostream &ret, GenAction *action, int targState, bool inFinish );
void CONDITION( ostream &ret, GenAction *condition );
string ALPH_TYPE();
string WIDE_ALPH_TYPE();
string ARRAY_TYPE( unsigned long maxVal );
string ARR_OFF( string ptr, string offset );
string CAST( string type );
string UINT();
string GET_KEY();
string ACCESS() { return "pdaRun->"; }
string P() { return ACCESS() + "p"; }
string PE() { return ACCESS() + "pe"; }
string DATA_EOF() { return ACCESS() + "scan_eof"; }
string CS();
string TOP() { return ACCESS() + "top"; }
string TOKSTART() { return ACCESS() + "tokstart"; }
string TOKEND() { return ACCESS() + "tokend"; }
string BLOCK_START() { return ACCESS() + "start"; }
string TOKLEN() { return ACCESS() + "toklen"; }
string ACT() { return ACCESS() + "act"; }
string MATCHED_TOKEN() { return ACCESS() + "matched_token"; }
string DATA_PREFIX();
string START() { return DATA_PREFIX() + "start"; }
string ERROR() { return DATA_PREFIX() + "error"; }
string FIRST_FINAL() { return DATA_PREFIX() + "first_final"; }
string ENTRY_BY_REGION() { return DATA_PREFIX() + "entry_by_region"; }
void INLINE_LIST( ostream &ret, InlineList *inlineList,
int targState, bool inFinish );
void EXEC_TOKEND( 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 LM_ON_LAST( ostream &ret, InlineItem *item );
void LM_ON_NEXT( ostream &ret, InlineItem *item );
void LM_ON_LAG_BEHIND( ostream &ret, InlineItem *item );
void EXEC_TOKEND( ostream &ret );
void EMIT_TOKEN( ostream &ret, LangEl *token );
string ERROR_STATE();
string FIRST_FINAL_STATE();
string PTR_CONST();
ostream &OPEN_ARRAY( string type, string name );
ostream &CLOSE_ARRAY();
ostream &STATIC_VAR( string type, string name );
string CTRL_FLOW();
unsigned int arrayTypeSize( unsigned long maxVal );
public:
ostream &out;
RedFsm *redFsm;
fsm_tables *fsmTables;
int codeGenErrCount;
/* Write options. */
bool dataPrefix;
bool writeFirstFinal;
bool writeErr;
bool skipTokenLabelNeeded;
std::ostream &TO_STATE_ACTION_SWITCH();
std::ostream &FROM_STATE_ACTION_SWITCH();
std::ostream &ACTION_SWITCH();
std::ostream &STATE_GOTOS();
std::ostream &TRANSITIONS();
std::ostream &EXEC_FUNCS();
unsigned int TO_STATE_ACTION( RedState *state );
unsigned int FROM_STATE_ACTION( RedState *state );
std::ostream &TO_STATE_ACTIONS();
std::ostream &FROM_STATE_ACTIONS();
void emitCondBSearch( RedState *state, int level, int low, int high );
void STATE_CONDS( RedState *state, bool genDefault );
void emitSingleSwitch( RedState *state );
void emitRangeBSearch( RedState *state, int level, int low, int high );
std::ostream &EXIT_STATES();
std::ostream &TRANS_GOTO( RedTrans *trans, int level );
std::ostream &FINISH_CASES();
void writeIncludes();
void writeData();
void writeInit();
void writeExec();
void writeCode();
void writeMain( long activeRealm );
protected:
bool useAgainLabel();
/* Called from GotoCodeGen::STATE_GOTOS just before writing the gotos for
* each state. */
bool IN_TRANS_ACTIONS( RedState *state );
void GOTO_HEADER( RedState *state );
void STATE_GOTO_ERROR();
/* Set up labelNeeded flag for each state. */
void setLabelsNeeded();
};
#endif /* _COLM_FSMCODEGEN_H */
|
