Maybe put in quotes? On Thu, Jun 22, 2023, at 10:07 AM, Bret Johnson wrote: >> Hi fellow users :-) >> >> I have been wondering which chars are special in SET >> in FreeCOM and whether they can be escaped or similar. > > I don't know specifically about FreeCOM, but I know in some versions of > DOS an environment variable can't contain an equals sign. For example, > in some DOS versions you can't do this while in others you can: > > SET ParameterList=Var1=1,Var2=2 > > This has caused me some grief in the past when I try to allow the user > to enter option parameters either from the command-line or from an > environment variable. For example, if the program I'm trying to run is > called PROGRAM I allow the user to set an environment variable named > PROGRAM that contains the "default" command-line parameters: > > SET PROGRAM=Option1=Yes, Option2=No > > I want that to work the same way as if the user had done this: > > PROGRAM Option1=Yes, Option2=No > > Sometimes it works and sometimes it doesn't, depending on which version > of DOS I am using. And I'm not even sure it is consistent across all > different DOS versions from the same manufacturer. BTW, the way I get > around this problem is to allow the user to either enter an equals (=) > or a colon (:) as the separator character and explain the situation in > the documentation.. > > The reason I bring this up is that in a recent post there was some > discussion over whether or not FreeDOS should fix all the bugs in > MS-DOS (essentially, improving MS-DOS) or duplicate the bugs, and the > consensus seemed to be to duplicate the bugs. I don't know if allowing > an equals sign in an environment variable would be considered a bug or > a feature, but I would classify it as a bug, and I don't remember > specifically how MS-DOS handles it. > > > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user
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