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Date:         Mon, 8 Sep 2003 14:22:41 -0700
Reply-To:     cassell.david@EPAMAIL.EPA.GOV
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "David L. Cassell" <cassell.david@EPAMAIL.EPA.GOV>
Subject:      Re: HELP: Is there a way to extract reserved words from SAS ?
Content-type: text/plain; charset=US-ASCII

Lars Lykkestjerne Jacobsen <lykkestjerne@PERSON.DK> added: > If so, can they be categorised ?

In what way?

If you mean 'reserved words' in the sense of the C programming language, then SAS is somewhat looser than you are expecting. Take a look at this code:

data data; run=1; stop=1; leave=1; set=1; output; run=2; stop=3; leave=4; set=5; output; run;

Now do you mean for SAS to count 'data', 'run', 'stop', 'leave' and 'set' as reserved words in the DATA step? If so, then surely this is not legal code, and this would abort horribly...

13 data data; 14 run=1; stop=1; leave=1; set=1; output; 15 run=2; stop=3; leave=4; set=5; output; 16 run;

NOTE: The data set WORK.DATA has 2 observations and 4 variables. NOTE: DATA statement used (Total process time): real time 0.03 seconds cpu time 0.03 seconds

Oh well, the log says that this is entirely acceptable. The SAS parser can tell what is a variable name.

Paul Choate has provided some valauble information (as always), but the nature of the SAS system is such that a search for 'reserved' words will first necessitate your defining what you mean by 'reserved', and in what context(s).

HTH, David -- David Cassell, CSC Cassell.David@epa.gov Senior computing specialist mathematical statistician


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