The language keyword is used to include a feature into a specific language. All features not assigned to a specific language will be added to the default language. The language keyword can only be used inside a script block. Assigning a feature to a specific language:

script <scripttag> {

 <features> # available in the default language

 language <tag> {

   <features>  # only available in this language

 }

}

 

Where:

•tag is one of the language tags defined in the Microsoft list of language tags (deprecated languages are not supported). A full list of supported languages can be found at http://www.microsoft.com/typography/otspec/languagetags.htm

 

Don’t forget to include features in the default language, as the default language will be used as fallback in case the language of text in a document isn’t available in the script. Windows always uses the default language, although that might change in the future.

 

Note: There are fonts that have unknown language tags like “TUR ” and “IPA ”, these are either deprecated or common mistakes. The following table lists several of these tags and their proper replacements: