From: arne@vajhoej.dk   
      
   On 2/15/2025 2:22 PM, Mark Berryman wrote:   
   > On *nix, one's program can define any command syntax desired since the   
   > command-line parsing is done entirely within the program.  The shell   
   > doesn't really do anything except try to expand unquoted wildcards   
   > (which somewhat limits the use of wildcards since the program cannot   
   > differentiate between a source wildcard and a destination wildcard).  On   
   > VMS, DCL can do it either way.  One can define a syntax that allows DCL   
   > to do the parsing as Arne has shown, or one can tell DCL to simply pass   
   > the command line to the program and let the program do all of the   
   > parsing.  One advantage of the former is that if the command-line fails   
   > to parse, the program never even has to be activated.   
      
   A VMS program has choices:   
   1A) SET COMM and CLI$   
   1B) SET COMM/OBJ, LIB$GET_FOREIGN and CLI$   
   2) LIB$GET_FOREIGN and custom parsing   
   3) Language specific way to get individual arguments   
      
   Arne   
      
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