{file, parser}: enforce default section name to lowercase with insentive load (#125)

file.go

@@ -109,7 +109,8 @@ func (f *File) NewSections(names ...string) (err error) {
 func (f *File) GetSection(name string) (*Section, error) {
 	if len(name) == 0 {
 		name = DEFAULT_SECTION
-	} else if f.options.Insensitive {
+	}
+	if f.options.Insensitive {
 		name = strings.ToLower(name)
 	}
 

file_test.go

@@ -150,6 +150,18 @@ func TestFile_Section(t *testing.T) {
 			So(sec.Name(), ShouldEqual, "404")
 		})
 	})
+
+	Convey("Get default section in lower case with insensitive load", t, func() {
+		f, err := ini.InsensitiveLoad([]byte(`
+[default]
+NAME = ini
+VERSION = v1`))
+		So(err, ShouldBeNil)
+		So(f, ShouldNotBeNil)
+
+		So(f.Section("").Key("name").String(), ShouldEqual, "ini")
+		So(f.Section("").Key("version").String(), ShouldEqual, "v1")
+	})
 }
 
 func TestFile_Sections(t *testing.T) {

ini.go

@@ -32,7 +32,7 @@ const (
 
 	// Maximum allowed depth when recursively substituing variable names.
 	_DEPTH_VALUES = 99
-	_VERSION      = "1.30.2"
+	_VERSION      = "1.30.3"
 )
 
 // Version returns current package version literal.

parser.go

@@ -255,7 +255,11 @@ func (f *File) parse(reader io.Reader) (err error) {
 	}
 
 	// Ignore error because default section name is never empty string.
-	section, _ := f.NewSection(DEFAULT_SECTION)
+	name := DEFAULT_SECTION
+	if f.options.Insensitive {
+		name = strings.ToLower(DEFAULT_SECTION)
+	}
+	section, _ := f.NewSection(name)
 
 	var line []byte
 	var inUnparseableSection bool