Data commit

Task/Optional-parameters/Groovy/optional-parameters-1.groovy

@@ -0,0 +1,3 @@
+def orderedSort(Collection table, column = 0, reverse = false, ordering = {x, y -> x <=> y } as Comparator) {
+    table.sort(false) { x, y -> (reverse ? -1 : 1) * ordering.compare(x[column], y[column])}
+}

Task/Optional-parameters/Groovy/optional-parameters-2.groovy

@@ -0,0 +1,7 @@
+def table = [['a', 'b', 'c'], ['', 'q', 'z'], ['zap', 'zip', 'Zot']]
+
+assert orderedSort(table) == [['', 'q', 'z'], ['a', 'b', 'c'], ['zap', 'zip', 'Zot']]
+assert orderedSort(table, 2) == [['zap', 'zip', 'Zot'], ['a', 'b', 'c'], ['', 'q', 'z']]
+assert orderedSort(table, 1) == [['a', 'b', 'c'], ['', 'q', 'z'], ['zap', 'zip', 'Zot']]
+assert orderedSort(table, 1, true) == [['zap', 'zip', 'Zot'],['', 'q', 'z'],['a', 'b', 'c']]
+assert orderedSort(table, 0, false, {x, y -> y?.size() <=> x?.size()} as Comparator) == [['zap', 'zip', 'Zot'],['a', 'b', 'c'],['', 'q', 'z']]

Task/Optional-parameters/Groovy/optional-parameters-3.groovy

@@ -0,0 +1,7 @@
+Collection.metaClass.orderedSort = { params ->
+    def column = params?.column ?: 0
+    def reverse = params?.reverse ?: false
+    def ordering = params?.ordering ?: {x, y -> x <=> y } as Comparator
+
+    table.sort(false) { x, y -> (reverse ? -1 : 1) * ordering.compare(x[column], y[column])}
+}

Task/Optional-parameters/Groovy/optional-parameters-4.groovy

@@ -0,0 +1,7 @@
+def table = [['a', 'b', 'c'], ['', 'q', 'z'], ['zap', 'zip', 'Zot']]
+
+assert table.orderedSort() == [['', 'q', 'z'], ['a', 'b', 'c'], ['zap', 'zip', 'Zot']]
+assert table.orderedSort(column: 2) == [['zap', 'zip', 'Zot'], ['a', 'b', 'c'], ['', 'q', 'z']]
+assert table.orderedSort(column: 1) == [['a', 'b', 'c'], ['', 'q', 'z'], ['zap', 'zip', 'Zot']]
+assert table.orderedSort(column: 1, reverse: true) == [['zap', 'zip', 'Zot'],['', 'q', 'z'],['a', 'b', 'c']]
+assert table.orderedSort(ordering: {x, y -> y?.size() <=> x?.size()} as Comparator) == [['zap', 'zip', 'Zot'],['a', 'b', 'c'],['', 'q', 'z']]