add LoadKV method on Iris.Application.I18N instance

i18n/i18n.go

@@ -141,8 +141,8 @@ func (i *I18n) LoadAssets(assetNames func() []string, asset func(string) ([]byte
 	return i.Reset(Assets(assetNames, asset, i.Loader), languages...)
 }
 
-// LoadFS is a method shortcut to load files using `embed.FS` or `fs.FS` or
-// `http.FileSystem` or `string` (local directory).
+// LoadFS is a method shortcut to load files using
+// an `embed.FS` or `fs.FS` or `http.FileSystem` value.
 // The "pattern" is a classic glob pattern.
 //
 // See `New` and `FS` package-level functions for more.
@@ -156,6 +156,13 @@ func (i *I18n) LoadFS(fileSystem fs.FS, pattern string, languages ...string) err
 	return i.Reset(loader, languages...)
 }
 
+// LoadKV is a method shortcut to load locales from a map of specified languages.
+// See `KV` package-level function for more.
+func (i *I18n) LoadKV(langMap LangMap, languages ...string) error {
+	loader := KV(langMap, i.Loader)
+	return i.Reset(loader, languages...)
+}
+
 // Reset sets the locales loader and languages.
 // It is not meant to be used by users unless
 // a custom `Loader` must be used instead of the default one.
@@ -300,6 +307,16 @@ func parsePath(m *Matcher, path string) int {
 	return -1
 }
 
+func parseLanguageName(m *Matcher, name string) int {
+	if t, err := language.Parse(name); err == nil {
+		if _, index, conf := m.MatchOrAdd(t); conf > language.Low {
+			return index
+		}
+	}
+
+	return -1
+}
+
 func reverseStrings(s []string) []string {
 	for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
 		s[i], s[j] = s[j], s[i]