cleanLib.sas

/*
 * Richard A. DeVenezia
 * 2/23/2005
 */

%macro cleanLib (base=, clean=);
  %let basePaths  = %qsysfunc (pathname(&base));
  %let cleanPaths = %qsysfunc (pathname(&clean));

  %if %qsubstr(&basePaths,1,1) = %str(%() %then
    %let basePaths = %substr(&basePaths,2,%eval(%length(&basePaths)-2));

  %if %qsubstr (&cleanPaths,1,1) = %str(%() %then
    %let cleanPaths = %substr(&cleanPaths,2,%eval(%length(&cleanPaths)-2));

  %let basePaths = %sysfunc (tranwrd(&basePaths,&cleanPaths,%str(-clean-)));
  %let basePaths = %sysfunc (tranwrd(&basePaths,"-clean-",%str()));
  %let basePaths = %sysfunc (tranwrd(&basePaths,'-clean-',%str()));
  %let basePaths = %sysfunc (tranwrd(&basePaths,-clean-,%str()));

  libname &base.
  %if %length(&basePaths.) > 0 %then ( &basePaths. ) ;
  ;
%mend;