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/*
* @LANG: obj-c
*/
#include <stdio.h>
#include <string.h>
#include <objc/Object.h>
int num = 0;
@interface CallTest : Object
{
@public
/* State machine operation data. */
int cs, top, stack[32];
};
// 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.
- (void) 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 CallTest
%%{
machine CallTest;
action check_num {
if ( num & 1 )
fcall odd;
else
fcall even;
}
# Test call and return functionality.
even := 'even' any @{fhold; fret;};
odd := 'odd' any @{fhold; fret;};
num = [0-9]+ ${ num = num * 10 + (fc - '0'); };
even_odd = num ' ' @check_num "\n";
# Test calls in out actions.
fail := !(any*);
out_acts = 'OA ok\n' |
'OA error1\n' |
'OA error2\n';
main := even_odd | out_acts;
}%%
%% write data;
- (void) initFsm;
{
num = 0;
%% write init;
}
- (void) executeWithData:(const char *)data len:(int)len;
{
const char *p = data;
const char *pe = data + len;
%% write exec;
}
- (int) finish;
{
if ( cs == CallTest_error )
return -1;
return ( cs >= CallTest_first_final ) ? 1 : 0;
}
@end
#define BUFSIZE 1024
void test( char *buf )
{
CallTest *test = [[CallTest alloc] init];
[test initFsm];
[test executeWithData:buf len:strlen(buf)];
if ( [test finish] > 0 )
printf( "ACCEPT\n" );
else
printf( "FAIL\n" );
}
int main()
{
test( "78 even\n" );
test( "89 odd\n" );
test( "1 even\n" );
test( "0 odd\n" );
test( "OA ok\n" );
test( "OA error1\n" );
test( "OA error2\n" );
return 0;
}
#ifdef _____OUTPUT_____
ACCEPT
ACCEPT
FAIL
FAIL
ACCEPT
ACCEPT
ACCEPT
#endif
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