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/*
* The var backend version genrep7 for checking NFA pop on non-final.
* @LANG: cv
*/
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
const char s[4096];
struct nfa_stack
{
void *data;
unsigned long sz;
};
struct nfa_bp_rec
{
long state;
const char *p;
long popTrans;
long q_2;
};
%%{
machine genrep;
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_2 {
({ q_2 = 0; 1; })
}
action stay_2 {
({ 1; })
}
action repeat_2 {
({ ++q_2 < 3; })
}
action exit_2 {
({ ++q_2 >= 2; })
}
# This one should print mulitple matches because it should finish in a
# non-final state, triggering NFA pop.
main :=
( :nfa( ( 'a' ) , psh, pop, ini_2, stay_2, repeat_2, exit_2 ): ) {2}
'|x' >{ printf( "------ MATCH\n" ); };
write data;
}%%
int test( const char *p )
{
int len = strlen( p );
const char *pe = p + len;
const char *eof = pe;
int cs;
struct nfa_bp_rec *nfa_bp = (struct nfa_bp_rec*) s;
long nfa_len = 0;
long nfa_count = 0;
long q_2 = 0;
printf( "testing: %s\n", p );
%%{
machine genrep;
write init;
write exec;
}%%
return 0;
}
int main()
{
test( "a|" );
test( "aa|" );
test( "aaa|" );
test( "aaaa|" );
test( "aaaaa|" );
test( "aaaaaa|" );
test( "aaaaaaa|" );
test( "aaaaaaaa|" );
return 0;
}
###### OUTPUT ######
testing: a|
testing: aa|
testing: aaa|
testing: aaaa|
------ MATCH
testing: aaaaa|
------ MATCH
------ MATCH
testing: aaaaaa|
------ MATCH
testing: aaaaaaa|
testing: aaaaaaaa|
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