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#include <stdio.h>
#include <string.h>
#include <Foundation/Foundation.h>
@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
static const char _ErrAct_eof_actions [] = { 0, 1, 2, 3, 2, 2, 0, 0 , };
static const char _ErrAct_nfa_targs [] = { 0, 0 , };
static const char _ErrAct_nfa_offsets [] = { 0, 0, 0, 0, 0, 0, 0, 0 , };
static const char _ErrAct_nfa_push_actions [] = { 0, 0 , };
static const char _ErrAct_nfa_pop_trans [] = { 0, 0 , };
static const int ErrAct_start = 1;
static const int ErrAct_first_final = 6;
static const int ErrAct_error = 0;
static const int ErrAct_en_main = 1;
- (int) initFsm;
{
{
cs = ( int ) ErrAct_start;
}
return 1;
}
- (void) executeWithData:(const char *)_data len:(int)_len;
{
const char *p = _data;
const char *pe = _data + _len;
const char *eof = pe;
{
if ( p == pe )
goto _test_eof;
if ( cs == 0 )
goto _out;
_resume:
switch ( cs ) {
case 1:
switch ( ((*( p ))
) ) {
case 43:
{
goto ctr1;
}
case 45:
{
goto ctr1;
}
}
if ( 48 <= ((*( p ))
)&& ((*( p ))
)<= 57 )
{
goto ctr2;
}
{
goto ctr0;
}
case 0:
goto _out;
case 2:
if ( 48 <= ((*( p ))
)&& ((*( p ))
)<= 57 )
{
goto ctr2;
}
{
goto ctr3;
}
case 3:
switch ( ((*( p ))
) ) {
case 10:
{
goto ctr5;
}
case 46:
{
goto ctr6;
}
}
if ( 48 <= ((*( p ))
)&& ((*( p ))
)<= 57 )
{
goto ctr2;
}
{
goto ctr4;
}
case 6:
{
goto ctr8;
}
case 4:
if ( 48 <= ((*( p ))
)&& ((*( p ))
)<= 57 )
{
goto ctr7;
}
{
goto ctr3;
}
case 5:
if ( ((*( p ))
)== 10 )
{
goto ctr5;
}
if ( 48 <= ((*( p ))
)&& ((*( p ))
)<= 57 )
{
goto ctr7;
}
{
goto ctr3;
}
}
ctr8: cs = 0;
goto _again;
ctr0: cs = 0;
goto f0;
ctr3: cs = 0;
goto f1;
ctr4: cs = 0;
goto f2;
ctr1: cs = 2;
goto _again;
ctr2: cs = 3;
goto _again;
ctr6: cs = 4;
goto _again;
ctr7: cs = 5;
goto _again;
ctr5: cs = 6;
goto _again;
f0:
{
printf(" DIGIT PLUS MINUS\n");
}
goto _again;
f1:
{
printf(" DIGIT\n");
}
goto _again;
f2:
{
printf(" DIGIT DECIMAL\n");
}
goto _again;
_again:
if ( cs == 0 )
goto _out;
p+= 1;
if ( p != pe )
goto _resume;
_test_eof: {}
if ( p == eof )
{
switch ( _ErrAct_eof_actions[cs] ) {
case 1:
{
printf(" DIGIT PLUS MINUS\n");
}
break;
case 2:
{
printf(" DIGIT\n");
}
break;
case 3:
{
printf(" DIGIT DECIMAL\n");
}
break;
}
}
_out: {}
}
}
- (int) finish;
{
if ( cs == ErrAct_error )
return -1;
else if ( cs >= ErrAct_first_final )
return 1;
return 0;
}
@end
#define BUFSIZE 1024
void test( char *buf )
{
ErrAct *errAct = [[ErrAct alloc] init];
[errAct initFsm];
[errAct executeWithData:buf len:strlen(buf)];
if ( [errAct finish] > 0 )
printf("ACCEPT\n");
else
printf("FAIL\n");
}
int main()
{
test( "1\n" );
test( "+1\n" );
test( "-1\n" );
test( "1.1\n" );
test( "+1.1\n" );
test( "-1.1\n" );
test( "a\n" );
test( "-\n" );
test( "+\n" );
test( "-a\n" );
test( "+b\n" );
test( "1.\n" );
test( "1d\n" );
test( "1.d\n" );
test( "1.1d\n" );
return 0;
}
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