Import prescriptions by columns.

zaaReloaded2/Medication/Importer.cs

@@ -96,15 +96,33 @@ namespace zaaReloaded2.Medication
 
         protected virtual void Import(string text)
         {
-            Prescriptions = new List<Prescription>();
+            List<Prescription> list = new List<Prescription>();
+            IList<Prescription> addition;
+            int columns = 1;
             string[] lines = Helpers.SplitParagraphs(text);
             foreach (string line in lines)
             {
                 if (Prescription.IsPrescriptionLine(line))
                 {
-                    Prescriptions.AddRange(Prescription.ManyFromLine(line));
+                    addition = Prescription.ManyFromLine(line);
+                    columns = System.Math.Max(columns, addition.Count);
+                    list.AddRange(addition);
                 }
             }
+
+            // If the input had several columns, sort the prescriptions by
+            // column.
+            // TODO: Make this more generic so it works with 3 or 4 columns as well.
+            if (columns == 2)
+            {
+                var firstCol = list.Where((item, index) => index % 2 == 0);
+                var secondCol = list.Where((item, index) => index % 2 != 0);
+                Prescriptions = firstCol.Concat(secondCol).ToList();
+            }
+            else
+            {
+                Prescriptions = list;
+            }
         }
         
         #endregion