The Vienamese Input Method is similar to the Single-Byte Input Method (SIM), except that it is customized for processing the Vietnamese language.
Specifically, it is designed to prevent entry of combinations of Vietnamese characters ( tone marks ), that are invalid in the Vietnamese language. The Vietnamese tone mark characters can only be entered immediately after one of the Vietnamese vowels ( a, e, i, o, u, y, a-circumflex, e-circumflex, o-circumflex, a-breve, o-horn, or u-horn ).
The Vietnamese Input method supports a single keyboard layer, including some pre-composed characters and Vietnamese tone marks.
| Vi_VN.IBM-1129.imkeymap |