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|
/*
* @LANG: c
* @PROHIBIT_FLAGS: -F0 -F1
*/
/**
* Test a high character to make sure signedness
* isn't messing us up.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct high
{
int cs;
};
%%{
machine high;
variable cs fsm->cs;
# We Want the header portion.
alphtype unsigned int;
main := (
0x20 .. 0xefffffff @1 @{printf("gothigh1\n");} |
0xf0000000 @1 @{printf("gothigh1\n");} |
0x200 .. 0xfe000000 @1 @{printf("gothigh2\n");} |
any @0 @{printf("else\n");}
)*;
}%%
%% write data;
void high_init( struct high *fsm )
{
%% write init;
}
void high_execute( struct high *fsm, const unsigned int *_data, int _len )
{
const unsigned int *p = _data;
const unsigned int *pe = _data+_len;
%% write exec;
}
int high_finish( struct high *fsm )
{
if ( fsm->cs == high_error )
return -1;
if ( fsm->cs >= high_first_final )
return 1;
return 0;
}
struct high high;
#define BUFSIZE 1024
char cbuf[BUFSIZE];
unsigned int buf[BUFSIZE];
int buflen = 0;
char numbuf[9];
int numlen = 0;
struct tokenizer
{
int cs;
};
%%{
machine tokenizer;
variable cs fsm->cs;
action bufdigit {
if ( numlen < 8 )
numbuf[numlen++] = fc;
}
action writeDigit {
/* Null terminate the buffer storing the number and reset. */
numbuf[numlen] = 0;
numlen = 0;
/* Store the number in the buf. If the buf is full then
* flush and reset the buffer. */
buf[buflen++] = strtoul( numbuf, 0, 16 );
if ( buflen == BUFSIZE ) {
high_execute( &high, buf, BUFSIZE );
buflen = 0;
}
}
action finish {
if ( buflen > 0 )
high_execute( &high, buf, buflen );
if ( high_finish( &high ) > 0 )
printf("ACCEPT\n");
else
printf("FAIL\n");
}
num = ( digit | 'a'..'f' )+ $bufdigit %writeDigit;
main := ( num $1 %0 | space )* %/finish;
}%%
%% write data;
void tokenizer_init( struct tokenizer *fsm )
{
%% write init;
}
void tokenizer_execute( struct tokenizer *fsm, const char *_data, int _len )
{
const char *p = _data;
const char *pe = _data+_len;
const char *eof = pe;
%% write exec;
}
int tokenizer_finish( struct tokenizer *fsm )
{
if ( fsm->cs == tokenizer_error )
return -1;
if ( fsm->cs >= tokenizer_first_final )
return 1;
return 0;
}
struct tokenizer tok;
void test( char *cbuf )
{
int len = strlen( cbuf );
high_init( &high );
tokenizer_init( &tok );
tokenizer_execute( &tok, cbuf, len );
if ( tokenizer_finish( &tok ) <= 0 )
printf("Tokenizer FAIL\n");
}
char data[] =
"10 20 30 40 50 200 300 400 \n"
"d0000000 f0000000 fd000000 fe000000\n"
"ff000000 ffffffffffffffffffffffffff\n"
"ff\n";
int main()
{
test( data );
return 0;
}
##### OUTPUT #####
else
gothigh1
gothigh1
gothigh1
gothigh1
gothigh1
gothigh2
gothigh1
gothigh2
gothigh1
gothigh2
gothigh1
gothigh2
gothigh1
gothigh2
gothigh2
gothigh2
else
else
gothigh1
ACCEPT
|
