fix: misc bugfixes.

pkg/util/stringutils2/i18n.go

@@ -0,0 +1,24 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package stringutils2
+
+func IsUtf8(str string) bool {
+	for _, runeVal := range str {
+		if runeVal > 0x7f {
+			return true
+		}
+	}
+	return false
+}

pkg/util/stringutils2/i18n_test.go

@@ -0,0 +1,35 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package stringutils2
+
+import (
+	"testing"
+)
+
+func TestIsUtf8(t *testing.T) {
+	cases := []struct {
+		In   string
+		Want bool
+	}{
+		{"中文", true},
+		{"this is eng", false},
+	}
+	for _, c := range cases {
+		got := IsUtf8(c.In)
+		if got != c.Want {
+			t.Errorf("IsUtf8 %s got %v want %v", c.In, got, c.Want)
+		}
+	}
+}