catopen is a [Tclx] command for opening a [message catalog].


     catopen ?-fail | -nofail? catname
          Open the message catalog catname.  This may be a relative
          path name, in which case the NLSPATH environment variable is
          searched to find an absolute path to the message catalog.  A
          handle in the form msgcatN is returned.  Normally, errors
          are ignored, and in the case of a failed call to catopen, a
          handle is returned to an unopened message catalog.  (This
          handle may still be passed to catgets and catclose, causing
          catgets to simply return the default string, as described
          above.  If the -fail option is specified, an error is
          returned if the open fails.  The option -nofail specifies
          the default behavior of not returning an error when catopen
          fails to open a specified message catalog.  If the handle
          from a failed catopen is passed to catgets, the default
          string is returned.

----
See also [catgets] and [catclose].

-----
[Category Command]