feat: adding MATCH parameter to mp_searchcols.sas to enable fuzzy matching on columns. Closes #14

all.sas

@@ -2945,7 +2945,7 @@ run;
       proc sql;
       create table data1 as select * from sashelp.class;
       create view view2 as select * from sashelp.class;
-      %mp_dropmembers(libref=WORK, list=data1 view2)
+      %mp_dropmembers(data1 view2, libref=WORK)
 
 
   <h4> SAS Macros </h4>
@@ -5729,7 +5729,15 @@ run;
 
       %mp_searchcols(libs=sashelp work, cols=name sex age)
 
-  @param libs=
+  @param libs=(SASHELP) Space separated list of libraries to search for columns
+  @param cols= Space separated list of column names to search for (not case
+    sensitive)
+  @param outds=(mp_searchcols) the table to create with the results.  Will have
+    one line per table match.
+  @param match=(ANY) The match type. Valid values:
+    @li ANY - The table contains at least one of the columns
+    @li WILD - The table contains a column with a name that partially matches
+
   @version 9.2
   @author Allan Bowe
 **/
@@ -5737,6 +5745,7 @@ run;
 %macro mp_searchcols(libs=sashelp
   ,cols=
   ,outds=mp_searchcols
+  ,match=ANY
 )/*/STORE SOURCE*/;
 
 %put &sysmacroname process began at %sysfunc(datetime(),datetime19.);
@@ -5758,8 +5767,10 @@ create table _data_ as
 %end;
   order by 1,2,3;
 
+%local tempds;
+%let tempds=&syslast;
 data &outds;
-  set &syslast;
+  set &tempds;
   length cols matchcols $32767;
   cols=upcase(symget('cols'));
   colcount=countw(cols);
@@ -5773,10 +5784,29 @@ data &outds;
     retain matchcols;
     matchcols='';
   end;
+%if &match=ANY %then %do;
   if findw(cols,name,,'spit') then do;
     sumcols+1;
     matchcols=cats(matchcols)!!' '!!cats(name);
   end;
+%end;
+%else %if &match=WILD %then %do;
+  if _n_=1 then do;
+    retain wcount;
+    wcount=countw(cols);
+    drop wcount;
+  end;
+  do i=1 to wcount;
+    length curword $32;
+    curword=scan(cols,i,' ');
+    drop curword;
+    if index(name,cats(curword)) then do;
+      sumcols+1;
+      matchcols=cats(matchcols)!!' '!!cats(curword);
+    end;
+  end;
+%end;
+
   if last.memname then do;
     if sumcols>0 then output;
     if sumcols=colcount then putlog "Full Match: " libname memname;
@@ -5786,10 +5816,11 @@ run;
 
 proc sort; by descending sumcols memname libname; run;
 
+proc sql;
+drop table &tempds;
 %put &sysmacroname process finished at %sysfunc(datetime(),datetime19.);
 
-%mend;
-/**
+%mend mp_searchcols;/**
   @file
   @brief Searches all data in a library
   @details

base/mp_searchcols.sas

@@ -9,7 +9,15 @@
 
       %mp_searchcols(libs=sashelp work, cols=name sex age)
 
-  @param libs=
+  @param libs=(SASHELP) Space separated list of libraries to search for columns
+  @param cols= Space separated list of column names to search for (not case
+    sensitive)
+  @param outds=(mp_searchcols) the table to create with the results.  Will have
+    one line per table match.
+  @param match=(ANY) The match type. Valid values:
+    @li ANY - The table contains at least one of the columns
+    @li WILD - The table contains a column with a name that partially matches
+
   @version 9.2
   @author Allan Bowe
 **/
@@ -17,6 +25,7 @@
 %macro mp_searchcols(libs=sashelp
   ,cols=
   ,outds=mp_searchcols
+  ,match=ANY
 )/*/STORE SOURCE*/;
 
 %put &sysmacroname process began at %sysfunc(datetime(),datetime19.);
@@ -38,8 +47,10 @@ create table _data_ as
 %end;
   order by 1,2,3;
 
+%local tempds;
+%let tempds=&syslast;
 data &outds;
-  set &syslast;
+  set &tempds;
   length cols matchcols $32767;
   cols=upcase(symget('cols'));
   colcount=countw(cols);
@@ -53,10 +64,29 @@ data &outds;
     retain matchcols;
     matchcols='';
   end;
+%if &match=ANY %then %do;
   if findw(cols,name,,'spit') then do;
     sumcols+1;
     matchcols=cats(matchcols)!!' '!!cats(name);
   end;
+%end;
+%else %if &match=WILD %then %do;
+  if _n_=1 then do;
+    retain wcount;
+    wcount=countw(cols);
+    drop wcount;
+  end;
+  do i=1 to wcount;
+    length curword $32;
+    curword=scan(cols,i,' ');
+    drop curword;
+    if index(name,cats(curword)) then do;
+      sumcols+1;
+      matchcols=cats(matchcols)!!' '!!cats(curword);
+    end;
+  end;
+%end;
+
   if last.memname then do;
     if sumcols>0 then output;
     if sumcols=colcount then putlog "Full Match: " libname memname;
@@ -66,6 +96,8 @@ run;
 
 proc sort; by descending sumcols memname libname; run;
 
+proc sql;
+drop table &tempds;
 %put &sysmacroname process finished at %sysfunc(datetime(),datetime19.);
 
-%mend;
+%mend mp_searchcols;

tests/base/mp_searchcols.test.sas

@@ -0,0 +1,50 @@
+/**
+  @file
+  @brief Testing mp_searchcols.sas
+
+  <h4> SAS Macros </h4>
+  @li mp_searchcols.sas
+  @li mp_assertdsobs.sas
+
+
+**/
+
+
+/** Test 1 - full col match  */
+data example1;
+  var1=1;
+  var2=2;
+  var3=3;
+data example2;
+  var1=1;
+  var2=2;
+data example3;
+  var2=2;
+  var3=3;
+data example4;
+  matchmehere=1;
+data example5;
+  hereyoucan_matchme_also=1;
+data example6;
+  do_not_forget_me=1;
+data example7;
+  we_shall_not_forget=1;
+run;
+
+%mp_searchcols(libs=work,cols=var1 var2,outds=testme)
+
+%mp_assertdsobs(work.testme,
+  desc=Test1 - check exact variables are found,
+  test=EQUALS 3,
+  outds=work.test_results
+)
+
+/* test 2 - wildcard match */
+
+%mp_searchcols(libs=work,cols=matchme forget,match=WILD, outds=testme2)
+
+%mp_assertdsobs(work.testme2,
+  desc=Test1 - check fuzzy matches are found,
+  test=EQUALS 4,
+  outds=work.test_results
+)