How to use

To type directly with the computer keyboard:

• Type d= or dd for đ
• Type aa for ă, oo for ơ, uu for ư
• Type aaa for â, ee for ê, ooo for ô
• Type a number for the tone: a2, a3, a4, a5, a6 for à, á, ạ, ã, ả
  or type = to change the tone: a=, a==, a===, a=====

Copy [Ctrl]+[C] & Paste [Ctrl]+[V]

The Vietnamese tones

1	ngang	no mark
2	huyền	grave accent
3	sắc	acute accent
4	nặng	dot below
5	ngã	tilde above
6	hỏi	hook above