       1mcatopen 22m?1m-fail 22m| 1m-nofail22m? 4mcatname0m
              Open  the  message catalog 4mcatname24m.  This may be a relative path
              name, in which case the 1mNLSPATH 22menvironment variable is searched
              to  find  an  absolute path to the message catalog.  A handle in
              the form 1mmsgcat4m22mN24m is returned.  Normally, errors are ignored, and
              in the case of a failed call to 1mcatopen22m, a handle is returned to
              an unopened message catalog.  (This handle may still  be  passed
              to  1mcatgets  22mand  1mcatclose22m, causing 1mcatgets 22mto simply return the
              default string, as described above.   If  the  1m-fail  22moption  is
              specified,  an  error is returned if the open fails.  The option
              1m-nofail 22mspecifies the default behavior of not returning an error
              when  1mcatopen 22mfails to open a specified message catalog.  If the
              handle from a failed 1mcatopen 22mis passed to 1mcatgets22m,  the  default
              string is returned.
