feat: creating new mx_ suite of macros!

also adding new mx_getcode macro

tests/base/mp_validatecol.test.sas

@@ -0,0 +1,132 @@
+/**
+  @file
+  @brief Testing mp_validatecol.sas macro
+
+  <h4> SAS Macros </h4>
+  @li mp_assertdsobs.sas
+  @li mp_validatecol.sas
+
+**/
+
+
+/**
+  * Test 1 - LIBDS
+  */
+data test1;
+  infile datalines4 dsd;
+  input;
+  libds=_infile_;
+  %mp_validatecol(libds,LIBDS,is_libds)
+  if is_libds=1;
+datalines4;
+some.libname
+!lib.blah
+%abort
+definite.ok
+not.ok!
+nineletrs._
+;;;;
+run;
+%mp_assertdsobs(work.test1,
+  desc=Testing LIBDS,
+  test=EQUALS 2,
+  outds=work.test_results
+)
+
+/**
+  * Test 2 - ISNUM
+  */
+data test2;
+  infile datalines4 dsd;
+  input;
+  infile=_infile_;
+  %mp_validatecol(infile,ISNUM,is_numeric)
+  if is_numeric=1;
+datalines4;
+1
+0001
+1e6
+-44
+above are good
+the rest are bad
+%abort
+1&somethingverybad.
+&
++-1
+;;;;
+run;
+%mp_assertdsobs(work.test2,
+  desc=Test2 - ISNUM,
+  test=EQUALS 4,
+  outds=work.test_results
+)
+
+/**
+  * Test 3 - FORMAT
+  */
+data test3;
+  infile datalines4 dsd;
+  input;
+  infile=_infile_;
+  %mp_validatecol(infile,FORMAT,is_format)
+  if is_format=1;
+datalines4;
+$.
+$format.
+$format12.2
+somenum.
+somenum12.4
+above are good
+the rest are bad
+%abort
+1&somethingverybad.
+&
++-1
+.
+a.A
+$format12.1b
+$format12.1b1
+;;;;
+run;
+%mp_assertdsobs(work.test3,
+  desc=Test3 - ISFORMAT,
+  test=EQUALS 5,
+  outds=work.test_results
+)
+
+/**
+  * Test 4 - ISINT
+  */
+data test4;
+  infile datalines4 dsd;
+  input;
+  infile=_infile_;
+  %mp_validatecol(infile,ISINT,is_integer)
+  if is_integer=1;
+datalines4;
+1
+1234
+-134
+-1.0
+1.0
+0
+above are good
+the rest are bad
+0.1
+1.1
+-0.001
+%abort
+1&somethingverybad.
+&
++-1
+.
+a.A
+$format12.1b
+$format12.1b1
+;;;;
+run;
+%mp_assertdsobs(work.test4,
+  desc=Test4 - ISFORMAT,
+  test=EQUALS 6,
+  outds=work.test_results
+)