Added paths objects helpers

Author: cmaglie

objects.go

@@ -29,6 +29,10 @@
 
 package properties
 
+import (
+	"github.com/arduino/go-paths-helper"
+)
+
 // GetBoolean returns true if the map contains the specified key and the value
 // equals to the string "true", in any other case returns false.
 func (m Map) GetBoolean(key string) bool {
@@ -45,3 +49,22 @@ func (m Map) SetBoolean(key string, value bool) {
 		m[key] = "false"
 	}
 }
+
+// GetPath returns a paths.Path object using the map value as path. The function
+// returns nil if the key is not present.
+func (m Map) GetPath(key string) *paths.Path {
+	value, ok := m[key]
+	if !ok {
+		return nil
+	}
+	return paths.New(value)
+}
+
+// SetPath saves the paths.Path object in the map using the path as value of the map
+func (m Map) SetPath(key string, value *paths.Path) {
+	if value == nil {
+		m[key] = ""
+	} else {
+		m[key] = value.String()
+	}
+}