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core/base/mp_webin.sas

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SAS

/**
@file
@brief Fix the `_WEBIN` variables provided to SAS web services
@details When uploading files to SAS Stored Processes or Viya Jobs a number
of global macro variables are automatically created - however there are some
differences in behaviour both between SAS 9 and Viya, and also between a
single file upload and a multi-file upload.
This macro "straightens" up the global macro variables to make it easier /
simpler to write code that works in both environments and with a variable
number of file inputs.
After running this macro, the following global variables will *always* exist:
@li `_WEBIN_FILE_COUNT`
@li `_WEBIN_FILENAME1`
@li `_WEBIN_FILEREF1`
@li `_WEBIN_NAME1`
Usage:
%mp_webin()
This was created as a macro procedure (over a macro function) as it will also
use the filename statement in Viya environments (where `_webin_fileuri` is
provided).
<h4> SAS Macros </h4>
@li mf_getplatform.sas
@li mf_getuniquefileref.sas
**/
%macro mp_webin();
/* prepare global variables */
%global _webin_file_count
_webin_filename _webin_filename1
_webin_fileref _webin_fileref1
_webin_fileuri _webin_fileuri1
_webin_name _webin_name1
;
/* create initial versions */
%let _webin_file_count=%eval(&_webin_file_count+0);
%let _webin_filename1=%sysfunc(coalescec(&_webin_filename1,&_webin_filename));
%let _webin_fileref1=%sysfunc(coalescec(&_webin_fileref1,&_webin_fileref));
%let _webin_fileuri1=%sysfunc(coalescec(&_webin_fileuri1,&_webin_fileuri));
%let _webin_name1=%sysfunc(coalescec(&_webin_name1,&_webin_name));
/* If Viya, create temporary fileref(s) */
%local i;
%if %mf_getplatform()=SASVIYA %then %do i=1 %to &_webin_file_count;
%let _webin_fileref&i=%mf_getuniquefileref();
filename &&_webin_fileref&i filesrvc "&&_webin_fileuri&i";
%end;
%mend mp_webin;