Fixes #125: Support custom per-mapper placeholder text (#169)

2021-05-17 20:31:07 +09:00
parent 9c81441ae0
commit b3bdeb18e2
4 changed files with 42 additions and 0 deletions
@@ -65,6 +65,11 @@ type HelpProvider interface {
 	Help() string
 }

+// PlaceHolderProvider can be implemented by mappers to provide custom placeholder text.
+type PlaceHolderProvider interface {
+	PlaceHolder(flag *Flag) string
+}
+
 // HelpIndenter is used to indent new layers in the help tree.
 type HelpIndenter func(prefix string) string