File psl-1983/tests/mini-open-close.red artifact 7fe51b852a part of check-in 5f584e9b52
% MINI-OPEN-CLOSE.RED Some minimal User Level I/O routines: Procedure Open(FileName,How); If how eq 'Input then SystemOpenFileForInput FileName else if how eq 'OutPut then SystemOpenFileForOutPut FileName else IoError "Cant Open"; Procedure Close N; IndependentCloseChannel N; end;