Merge pull request #75 from mattwiller/expose_subcommand_context

Expose terminal subcommand

flaggy_test.go

@@ -108,6 +108,9 @@ func TestComplexNesting(t *testing.T) {
 		t.Log("testE", testE)
 		t.FailNow()
 	}
+	if subcommandName := flaggy.DefaultParser.TrailingSubcommand().Name; subcommandName != "scD" {
+		t.Fatal("Used subcommand was incorrect:", subcommandName)
+	}
 
 }
 
@@ -177,5 +180,8 @@ func TestParsePositionalsA(t *testing.T) {
 	if parser.TrailingArguments[1] != "trailingB" {
 		t.Fatal("Trailing argumentB was incorrect:", parser.TrailingArguments[1])
 	}
+	if subcommandName := parser.TrailingSubcommand().Name; subcommandName != "subcommand" {
+		t.Fatal("Used subcommand was incorrect:", subcommandName)
+	}
 
 }

parser.go

@@ -26,6 +26,11 @@ type Parser struct {
 	subcommandContext          *Subcommand        // points to the most specific subcommand being used
 }
 
+TrailingSubcommand returns the last and most specific subcommand invoked.
+func (p *Parser) TrailingSubcommand() *Subcommand {
+	return p.subcommandContext
+}
+
 // NewParser creates a new ArgumentParser ready to parse inputs
 func NewParser(name string) *Parser {
 	// this can not be done inline because of struct embedding