/* Extract and compile regex */
str = xmalloc (i - 1);
memcpy (str, expr + 2, i - 2);
str[i - 2] = 0;
rc = regcomp (&tf->regex, str, cflags);
/* Extract and compile regex */
str = xmalloc (i - 1);
memcpy (str, expr + 2, i - 2);
str[i - 2] = 0;
rc = regcomp (&tf->regex, str, cflags);