/* matchhere: search for re at beginning of text */
int matchhere(char *re, char *text)
{
   if (re[0] == '\0')
      return 1;
   if (re[1] == '*')
      return matchstar(re[0], re+2, text);
   if (re[0] == '$' && re[1] == '\0')
      return *text == '\0';
   if (*text!='\0' && (re[0]=='.' || re[0]==*text))
      return matchhere(re+1, text+1);
   return 0;
}

Example 2: The recursive function matchhere does most of the work.