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/*
* @LANG: c++
*/
#include <stdio.h>
#include <string.h>
int num = 0;
struct CallTest
{
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 init( );
// 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 execute( const char *data, 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( );
};
%%{
machine CallTest;
action check_num {
if ( num & 1 )
fcall *fentry(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 CallTest::init( )
{
num = 0;
%% write init;
}
void CallTest::execute( const char *data, int len )
{
const char *p = data;
const char *pe = data+len;
%% write exec;
}
int CallTest::finish( )
{
if ( this->cs == CallTest_error )
return -1;
if ( this->cs >= CallTest_first_final )
return 1;
return 0;
}
#define BUFSIZE 1024
void test( const char *buf )
{
CallTest test;
test.init();
test.execute( buf, 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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