Restructured code into 'cmd' module with CLI and 'greg' module with regex library; export necessary struct fields and methods

cmd/unique_array.go

@@ -0,0 +1,39 @@
+package main
+
+// Unique array data structure
+type uniq_arr[T comparable] struct {
+	backingMap map[T]struct{} // Map is used to check if element exists - Empty structs occupy zero memory
+}
+
+func new_uniq_arr[T comparable]() uniq_arr[T] {
+	return uniq_arr[T]{
+		make(map[T]struct{}),
+	}
+}
+func (s *uniq_arr[T]) add(vals ...T) {
+	for _, item := range vals {
+		if !s.contains(item) {
+			s.backingMap[item] = struct{}{}
+		}
+	}
+	return
+}
+
+func (s uniq_arr[T]) contains(val T) bool {
+	_, ok := s.backingMap[val]
+	return ok
+}
+
+func (s *uniq_arr[T]) delete(val T) {
+	delete(s.backingMap, val)
+}
+
+func (s uniq_arr[T]) values() []T {
+	toRet := make([]T, len(s.backingMap))
+	i := 0
+	for k := range s.backingMap {
+		toRet[i] = k
+		i++
+	}
+	return toRet
+}