Language detection

func Languages() []LanguageInfo

Languages returns a copy of the registered language descriptions. Each LanguageInfo includes Name, ID, and Extensions.

for _, language := range sunset.Languages() {
    fmt.Printf("%s: %v\n", language.ID, language.Extensions)
}

ParseFile detects from a file extension by default. If an extension does not identify a registered language, pass WithLanguage to specify a supported ID explicitly.