All error conditions
 227   can't open cache file [chkcache]
   8   can't open cache file [sendcache]
   4   can't open cachefile [csearch]
  12   http error
2172   no match for selector
  19   search string is empty!
  36   search term regular expression error
2616   sorry, access denied or file does not exist.
   2   syntax error [arg] in selector
  13   syntax error [no '/'] in selector [pselect]
.