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
211
212
213
|
host( "working/erract4.rl", 1 ) @{/*
* @@LANG: obj-c
*/
#include <stdio.h>
#include <Foundation/Foundation.h>
#define IDENT_BUFLEN 256
@@interface ErrAct : NSObject
{
@@public
int cs;
};
// Initialize the machine. Invokes any init statement blocks. Returns 0
// if the machine begins in a non-accepting state and 1 if the machine
// begins in an accepting state.
- (int) initFsm;
// Execute the machine on a block of data. Returns -1 if after processing
// the data, the machine is in the error state and can never accept, 0 if
// the machine is in a non-accepting state and 1 if the machine is in an
// accepting state.
- (void) executeWithData:(const char *)data len:(int)len;
// Indicate that there is no more data. Returns -1 if the machine finishes
// in the error state and does not accept, 0 if the machine finishes
// in any other non-accepting state and 1 if the machine finishes in an
// accepting state.
- (int) finish;
@@end
@@implementation ErrAct
}@
array char _ErrAct_trans_keys( 0, 5 ) = { 0, 3, 0, 0, 0, 2, 0, 4, 0, 4, 0, 5, 0, 0, 0 };
array s8 _ErrAct_char_class( 0, 5 ) = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 4, 1, 1, 5, 0 };
array s8 _ErrAct_index_offsets( 0, 24 ) = { 0, 4, 5, 8, 13, 18, 24, 0 };
array s8 _ErrAct_indicies( 0, 9 ) = { 1, 0, 0, 2, 4, 1, 0, 5, 1, 0, 0, 0, 6, 1, 0, 0, 0, 7, 1, 0, 0, 0, 0, 8, 9, 0 };
array s8 _ErrAct_index_defaults( 0, 3 ) = { 0, 3, 0, 0, 0, 0, 0, 0 };
array s8 _ErrAct_trans_cond_spaces( -1, 0 ) = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0 };
array s8 _ErrAct_cond_targs( 0, 6 ) = { 1, 1, 2, 1, 1, 3, 4, 5, 6, 0, 0 };
array s8 _ErrAct_cond_actions( 0, 3 ) = { 1, 2, 0, 0, 3, 0, 0, 0, 0, 3, 0 };
array s8 _ErrAct_eof_actions( 0, 1 ) = { 0, 0, 1, 1, 1, 1, 1, 0 };
array s8 _ErrAct_nfa_targs( 0, 0 ) = { 0, 0 };
array s8 _ErrAct_nfa_offsets( 0, 0 ) = { 0, 0, 0, 0, 0, 0, 0, 0 };
array s8 _ErrAct_nfa_push_actions( 0, 0 ) = { 0, 0 };
array s8 _ErrAct_nfa_pop_trans( 0, 0 ) = { 0, 0 };
value int ErrAct_start = 0;
value int ErrAct_first_final = 0;
value int ErrAct_error = -1;
value int ErrAct_en_main = 0;
host( "working/erract4.rl", 49 ) @{
- (int) initFsm;
{
}@
{
cs = cast(int)ErrAct_start;
}
host( "working/erract4.rl", 53 ) @{
return 1;
}
- (void) executeWithData:(const char *)_data len:(int)_len;
{
const char *p = _data;
const char *pe = _data + _len;
const char *eof = pe;
}@
{
uint _trans = 0;
uint _have = 0;
uint _cont = 1;
index char _keys;
index s8 _inds;
while ( _cont == 1 ) {
_have = 0;
if ( p == pe ) {
if ( p == eof )
{
if ( _have == 0 ) {
switch ( _ErrAct_eof_actions[cs] ) {
case 1 {
host( "working/erract4.rl", 41 ) ${ printf("hello fails\n");}$
}
}
}
}
if ( _have == 0 )
_cont = 0;
}
if ( _cont == 1 ) {
if ( _have == 0 ) {
_keys = offset( _ErrAct_trans_keys, (cs<<1) );
_inds = offset( _ErrAct_indicies, _ErrAct_index_offsets[cs] );
if ( ( deref( data, p )) <= 111 && ( deref( data, p )) >= 10 )
{
int _ic = cast(int)_ErrAct_char_class[cast(int)( deref( data, p )) - 10];
if ( _ic <= cast(int)deref( _ErrAct_trans_keys, _keys+1 ) && _ic >= cast(int)deref( _ErrAct_trans_keys, _keys ) )
_trans = cast(uint)deref( _ErrAct_indicies, _inds + cast(int)( _ic - cast(int)deref( _ErrAct_trans_keys, _keys ) ) );
else
_trans = cast(uint)_ErrAct_index_defaults[cs];
}
else {
_trans = cast(uint)_ErrAct_index_defaults[cs];
}
}
if ( _cont == 1 ) {
cs = cast(int)_ErrAct_cond_targs[_trans];
switch ( _ErrAct_cond_actions[_trans] ) {
case 1 {
host( "working/erract4.rl", 41 ) ${ printf("hello fails\n");}$
}
case 3 {
host( "working/erract4.rl", 43 ) ${printf("newline\n");}$
}
case 2 {
host( "working/erract4.rl", 43 ) ${printf("newline\n");}$
host( "working/erract4.rl", 41 ) ${ printf("hello fails\n");}$
}
}
if ( _cont == 1 )
p += 1;
}}
}
}
host( "working/erract4.rl", 62 ) @{
}
- (int) finish;
{
if ( cs == ErrAct_error )
return -1;
else if ( cs >= ErrAct_first_final )
return 1;
return 0;
}
@@end
#include <stdio.h>
#include <string.h>
#define BUFSIZE 2048
ErrAct *fsm;
char buf[BUFSIZE];
void test( char *buf )
{
int len = strlen(buf);
fsm = [[ErrAct alloc] init];
[fsm initFsm];
[fsm executeWithData:buf len:len];
if ( [fsm finish] > 0 )
printf("ACCEPT\n");
else
printf("FAIL\n");
}
int main()
{
test(
"hello\n"
"hello\n"
"hello\n"
);
test(
"hello\n"
"hello\n"
"hello there\n"
);
test(
"hello\n"
"hello\n"
"he" );
test( "" );
return 0;
}
}@
|
