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49 lines
1.3 KiB
SAS
49 lines
1.3 KiB
SAS
/**
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@file
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@brief Checks whether a feature exists
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@details Check to see if a feature is supported in your environment.
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Run without arguments to see a list of detectable features.
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Note - this list is based on known versions of SAS rather than
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actual feature detection, as that is tricky / impossible to do
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without generating errs in most cases.
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%put %mf_existfeature(PROCLUA);
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@param [in] feature The feature to detect.
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@return output returns 1 or 0 (or -1 if not found)
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<h4> SAS Macros </h4>
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@li mf_getplatform.sas
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@version 8
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@author Allan Bowe
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**/
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/** @cond */
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%macro mf_existfeature(feature
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)/*/STORE SOURCE*/;
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%let feature=%upcase(&feature);
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%local platform;
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%let platform=%mf_getplatform();
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%if &feature= %then %do;
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%put No feature was requested for detection;
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%end;
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%else %if &feature=COLCONSTRAINTS %then %do;
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%if %substr(&sysver,1,1)=4 %then 0;
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%else 1;
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%end;
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%else %if &feature=PROCLUA %then %do;
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/* https://blogs.sas.com/content/sasdummy/2015/08/03/using-lua-within-your-sas-programs */
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%if &platform=SASVIYA %then 1;
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%else %if "&sysver"="9.2" or "&sysver"="9.3" %then 0;
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%else %if "&SYSVLONG" < "9.04.01M3" %then 0;
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%else 1;
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%end;
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%else %do;
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-1
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%put &sysmacroname: &feature not found;
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%end;
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%mend mf_existfeature;
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/** @endcond */
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