VIetnamese Quoted-Readable, usually abbreviated VIQR and also known as Vietnet, is a convention for writing
Vietnamese using
ASCII characters. Because the
Vietnamese alphabet contains a complex system of
diacritical marks, VIQR requires the user to type in a base letter, followed by one or two characters that represent the diacritical marks: Usage VIQR uses the following convention: VIQR uses DD for the Vietnamese letter Đ, and dd for the Vietnamese letter đ. To type certain
punctuation marks (namely, the
period,
question mark,
apostrophe,
forward slash, opening
parenthesis, or
tilde) directly after most Vietnamese words, a
backslash (\) must be typed directly before the punctuation mark, so that it will not be interpreted as a diacritical mark.
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