Path: utzoo!mnetor!uunet!husc6!mit-eddie!gary
From: gary@eddie.MIT.EDU (Gary Samad)
Newsgroups: comp.sys.amiga
Subject: Re: A small ARexx example, and other useful tidbits . . .
Message-ID: <8767@eddie.MIT.EDU>
Date: 8 Apr 88 16:01:57 GMT
References: <26223@amdahl.uts.amdahl.com> <896@nuchat.UUCP>
Reply-To: gary@eddie.MIT.EDU (Gary Samad)
Organization: MIT, EE/CS Computer Facilities, Cambridge, MA
Lines: 39

In article <896@nuchat.UUCP> peter@nuchat.UUCP (Peter da Silva) writes:
}
}> say "Cuckoo at" zhour||":"||xmin
}                 ^ Don't you want a concatenation operator here?

Nope.  REXX automatically concatenates a space, then the object, if no
concatenation operator is used.

}> if opt="ALARM" then address COMMAND speak dingaling
}                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Mind explaining this
}                                                      construct?

The ADDRESS keyword specifies that the upcoming statement is not to be
executed by REXX, but is to be send to the HOST.  COMMAND is a builtin
hostname which executes programs.  It could have been something like:

address TXED insert 'foo'

or something like that to send the statement to TexEd instead or

address MFF_SERVER get_data_def dd

to query Microfiche Filer about it's currently loaded database.

There are shortcuts, by the way.  You needn't always specify the address.
You can specify the default address for all future unrecognized REXX
constructs by the expression:

address MFF_SERVER

then

get_data_def dd

works as expected.


	cu,
	Gary