fix: enable embedded blanks in mp_cleancsv, closes #289

tests/base/mp_cleancsv.test.sas

@@ -0,0 +1,43 @@
+/**
+  @file
+  @brief Testing mp_cleancsv.sas macro
+  @details Credit for test 1 goes to
+  [Tom](https://communities.sas.com/t5/user/viewprofilepage/user-id/159) from
+  SAS Communities:
+https://communities.sas.com/t5/SAS-Programming/Removing-embedded-carriage-returns/m-p/824790#M325761
+
+  <h4> SAS Macros </h4>
+  @li mf_nobs.sas
+  @li mp_cleancsv.sas
+  @li mp_assert.sas
+  @li mp_assertscope.sas
+
+**/
+
+/* test 1 - cope with empty rows on CR formatted file */
+
+filename crlf "%sysfunc(pathname(work))/crlf";
+filename cr "%sysfunc(pathname(work))/cr";
+data _null_;
+  file cr termstr=cr ;
+  put 'line 1'///'line 4'/'line 5';
+run;
+
+%mp_assertscope(SNAPSHOT)
+%mp_cleancsv(in=cr,out=crlf)
+%mp_assertscope(COMPARE)
+
+/* 5 rows as all converted to OD0A */
+data test1;
+  infile "%sysfunc(pathname(work))/crlf" lrecl=100 termstr=crlf;
+  input;
+  list;
+run;
+
+%put test1=%mf_nobs(test1);
+
+%mp_assert(
+  iftrue=(%mf_nobs(work.test1)=5),
+  desc=Checking blank rows on CR formatted file,
+  outds=work.test_results
+)