#include <stdio.h>

#include <stdio.h>
#include <string.h>
#include <pcre.h>
#include <rl.h>

int main(void)
{
const char *err = NULL;
int erroffs;
int flags = 0;
pcre *reg;
char teststr[82], *p;
char regexpr[82] = "";
int r;

if (! (p = rl_gets("Enter a test string: ", NULL)))
exit(0);
strcpy(teststr, p);

while(1) {
if (! (p = rl_gets("Enter a regular expression: ", regexpr)))
exit(0);
if(! strlen(p)) {
if (! (p = rl_gets("Enter a test string: ", NULL)))
exit(0);
if(! strlen(p))
break;
strcpy(teststr, p);
continue;
}

strcpy(regexpr, p);

if (! (reg = pcre_compile(regexpr, flags, &err, &erroffs, NULL))) {
fprintf(stderr, "%s\n", err);
continue;
}

if(! (r = pcre_exec(reg, NULL, teststr, strlen(teststr), 0, 0, NULL, 0))) {
printf("Matches!!\n");
} else {
if (r == PCRE_ERROR_NOMATCH)
fprintf(stderr, "No match\n");
else
fprintf(stderr, "Matching error %d\n", r);
}

pcre_free(reg);
}

return 0;
}