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/*
* @LANG: c
*/
#include <stddef.h> /* NULL */
#include <stdint.h> /* uint64_t */
#include <stdlib.h> /* malloc(3) free(3) */
#include <stdbool.h> /* bool */
#include <string.h>
#include <stdio.h>
struct nfa_bp_rec
{
long state;
const unsigned char *p;
int popTrans;
long q_2;
};
struct nfa_bp_rec nfa_bp[1024];
long nfa_len = 0;
long nfa_count = 0;
long c;
struct nfa_state_rec
{
long c;
};
struct nfa_state_rec nfa_s[1024];
void nfa_push()
{
nfa_s[nfa_len].c = c;
}
void nfa_pop()
{
c = nfa_s[nfa_len].c;
}
long q_2;
%%{
machine match_any;
alphtype unsigned char;
action eol { p+1 == eof }
eol = '' %when eol;
action psh
{
nfa_bp[nfa_len].q_2 = q_2;
}
action pop
{ ({
q_2 = nfa_bp[nfa_len].q_2;
1;
}) }
action ini {
({ q_2 = 0; 1; })
}
action stay {
({ 1; })
}
action repeat {
({ ++q_2 < 3; })
}
action exit {
({ ++q_2 >= 2; })
}
action marker
{ ({printf(" marker\n");1;}) }
main :=
( '' %when(marker)
:nfa( ( 'a' ), psh, pop, ini, stay, repeat, exit ): ' ' ) {2}
eol
any @{printf("----- MATCH\n");}
;
write data;
}%%
int test( const char *data )
{
int cs;
const unsigned char *p = (const unsigned char *)data;
const unsigned char *pe = p + strlen(data) + 1;
const unsigned char *eof = pe;
printf( "%s\n", data );
%% write init;
%% write exec;
return 0;
}
int main()
{
test( "a " );
test( "aa " );
test( "aaa " );
test( "aaaa " );
test( "a a " );
test( "aa aa " );
test( "aaa aaa " );
test( "aaaa aaaa " );
test( "a a a " );
test( "aa aa aa " );
test( "aaa aaa aaa " );
test( "aaaa aaaa aaaa " );
test( "aa a " );
test( "aa aaa " );
test( "aa aaaa " );
test( "aaa a " );
test( "aaa aa " );
test( "aaa aaaa " );
return 0;
}
##### OUTPUT #####
a
marker
aa
marker
marker
aaa
marker
marker
aaaa
marker
a a
marker
aa aa
marker
marker
----- MATCH
aaa aaa
marker
marker
----- MATCH
aaaa aaaa
marker
a a a
marker
aa aa aa
marker
marker
aaa aaa aaa
marker
marker
aaaa aaaa aaaa
marker
aa a
marker
marker
aa aaa
marker
marker
----- MATCH
aa aaaa
marker
marker
aaa a
marker
marker
aaa aa
marker
marker
----- MATCH
aaa aaaa
marker
marker
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