Template:Language with name/doc

Usage
Transcluded by "lang-xx" templates (like lang-bo etc.)—do not use directly.

Right-to-left
For languages written right-to-left, like Arabic, Hebrew and other, it is advised to set rtl in the language template (lang-ar, lang-he).

This adds the character  to the end of the string (the righthand side, in memory). It is an invisible formatting character, that terminates the R-to-L text. After this, (that is, directly after & outside of the template), all following text is initiated to be left-to-right (English) again.

Category suppression
If you want to suppress category output from the template, use true.