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core/base/mf_getkeyvalue.sas

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SAS

/**
@file
@brief retrieves a key value pair from a control dataset
@details By default, control dataset is work.mp_setkeyvalue. Usage:
%mp_setkeyvalue(someindex,22,type=N)
%put %mf_getkeyvalue(someindex)
@param [in] key Provide a key on which to perform the lookup
@param [in] libds= (work.mp_setkeyvalue) The library.dataset which holds the
parameters
@version 9.2
@author Allan Bowe
**/
%macro mf_getkeyvalue(key,libds=work.mp_setkeyvalue
)/*/STORE SOURCE*/;
%local ds dsid key valc valn type rc;
%let dsid=%sysfunc(open(&libds(where=(key="&key"))));
%syscall set(dsid);
%let rc = %sysfunc(fetch(&dsid));
%let rc = %sysfunc(close(&dsid));
%if &type=N %then %do;
&valn
%end;
%else %if &type=C %then %do;
&valc
%end;
%else %put %str(ERR)OR: Unable to find key &key in ds &libds;
%mend mf_getkeyvalue;