const ( CurrentLocaleRenderArg = "currentLocale" // The key for the current locale render arg value )
func I18nFilter(c *Controller, fc []Filter)
func Message(locale, message string, args ...interface{}) string
Perform a message look-up for the given locale and message using the given arguments.
When either an unknown locale or message is detected, a specially formatted string is returned.
func MessageLanguages() []string
Return all currently loaded message languages.