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_exist.sas
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_exist.sas
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%put NOTE: You have called the macro _EXIST, 2012-07-11.;
%put NOTE: Copyright (c) 2001-2012 Rodney Sparapani;
%put;
/*
Author: Rodney Sparapani <[email protected]>
Created: 2001-00-00
This file is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this file; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* _EXIST Documentation
Returns a one (true) if the requested file exists;
otherwise zero (false). Shorthand for %SYSFUNC(FILEEXIST())
POSITIONAL Parameters
ARG1 file to be checked for existence
*/
%macro _exist(arg1);
%sysfunc(fileexist(&arg1))
%mend _exist;
%*VALIDATION TEST STREAM;
/* uncomment to re-validate
%put RC=%_exist(~/autoexec.sas);
%put RC=%_exist(%_unwind(/usr/local/sasmacro/, c:\sasmacro\)_exist.sas);
*Result should be (this file exists): RC=1;
%put RC=%_exist(%_unwind(/usr/local/sasmacro/, c:\sasmacro\));
*Result should be (this directory file exists): RC=1;
%put RC=%_exist(this_file_does_not_exist);
*Result should be (this file does not exist): RC=0;
*/