VSCII
VSCII, also known as TCVN 5712:1993, ISO-IR-180, and Vietnamese Standard Code for Information Interchange is a set of three Vietnamese national standard character encodings for using the Vietnamese language with computers.
Unicode and the Windows-1258 code page are now used for virtually all Vietnamese computer data, but legacy VSCII and VISCII files may need conversion.
Encodings
All three forms of VSCII keep the 95 printable characters of ASCII unmodified. Each includes 134, 90, or 70 precomposed characters, five combining diacritical marks, and one non-breaking space.
VSCII-1, also known as TCVN 5712-1 and VN1, is a modified ASCII. It replaces 12 of the 33 control characters with precomposed characters. It adds 128 characters: 122 precomposed characters, five combining diacritics, and one non-breaking space.
VSCII-2, also known as TCVN 5712-2 and VN2, is a subset of VSCII-1. It is an extended ASCII, because it keeps all 128 codes of ASCII unmodified. It does not re-assign any of the C0 and C1 control codes. It adds 96 characters: 90 precomposed characters, five combining diacritics, and one non-breaking space.
VSCII-3, also known as TCVN 5712-3 and VN3, is a subset of VSCII-2. It is an extended ASCII, because it keeps all 128 codes of ASCII unmodified. It does not re-assign any of the C0 and C1 control codes. It adds 76 characters: 70 precomposed characters, five combining diacritics, and one non-breaking space.
Conversion from VSCII-3 to VSCII-2 or VSCII-1 and conversion from VSCII-2 to VSCII-1 are not necessary, but can result in smaller files.
Conversion from VSCII-1 to VSCII-2 or VSCII-3 and conversion from VSCII-2 to VSCII-3 require expansion of some precomposed characters.
Character set
Letter Number Punctuation Symbol Other undefined
_0 | _1 | _2 | _3 | _4 | _5 | _6 | _7 | _8 | _9 | _A | _B | _C | _D | _E | _F | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0_ | NUL 0000 0 |
Ú 00DA 1 |
Ụ 1EE4 2 |
ETX 0003 3 |
Ừ 1EEA 4 |
Ử 1EEC 5 |
Ữ 1EEE 6 |
BEL 0007 7 |
BS 0008 8 |
HT 0009 9 |
LF 000A 10 |
VT 000B 11 |
FF 000C 12 |
CR 000D 13 |
SO 000E 14 |
SI 000F 15 |
1_ | DLE 0010 16 |
Ứ 1EE8 17 |
Ự 1EF0 18 |
Ỳ 1EF2 19 |
Ỷ 1EF6 20 |
Ỹ 1EF8 21 |
Ý 00DD 22 |
Ỵ 1EF4 23 |
CAN 0018 24 |
EM 0019 25 |
SUB 001A 26 |
ESC 001B 27 |
FS 001C 28 |
GS 001D 29 |
RS 001E 30 |
US 001F 31 |
2_ | SP 0020 32 |
! 0021 33 |
" 0022 34 |
# 0023 35 |
$ 0024 36 |
% 0025 37 |
& 0026 38 |
' 0027 39 |
( 0028 40 |
) 0029 41 |
* 002A 42 |
+ 002B 43 |
, 002C 44 |
- 002D 45 |
. 002E 46 |
/ 002F 47 |
3_ | 0 0030 48 |
1 0031 49 |
2 0032 50 |
3 0033 51 |
4 0034 52 |
5 0035 53 |
6 0036 54 |
7 0037 55 |
8 0038 56 |
9 0039 57 |
: 003A 58 |
; 003B 59 |
< 003C 60 |
= 003D 61 |
> 003E 62 |
? 003F 63 |
4_ | @ 0040 64 |
A 0041 65 |
B 0042 66 |
C 0043 67 |
D 0044 68 |
E 0045 69 |
F 0046 70 |
G 0047 71 |
H 0048 72 |
I 0049 73 |
J 004A 74 |
K 004B 75 |
L 004C 76 |
M 004D 77 |
N 004E 78 |
O 004F 79 |
5_ | P 0050 80 |
Q 0051 81 |
R 0052 82 |
S 0053 83 |
T 0054 84 |
U 0055 85 |
V 0056 86 |
W 0057 87 |
X 0058 88 |
Y 0059 89 |
Z 005A 90 |
[ 005B 91 |
\ 005C 92 |
] 005D 93 |
^ 005E 94 |
_ 005F 95 |
6_ | ` 0060 96 |
a 0061 97 |
b 0062 98 |
c 0063 99 |
d 0064 100 |
e 0065 101 |
f 0066 102 |
g 0067 103 |
h 0068 104 |
i 0069 105 |
j 006A 106 |
k 006B 107 |
l 006C 108 |
m 006D 109 |
n 006E 110 |
o 006F 111 |
7_ | p 0070 112 |
q 0071 113 |
r 0072 114 |
s 0073 115 |
t 0074 116 |
u 0075 117 |
v 0076 118 |
w 0077 119 |
x 0078 120 |
y 0079 121 |
z 007A 122 |
{ 007B 123 |
| 007C 124 |
} 007D 125 |
~ 007E 126 |
DEL 007F 127 |
8_ | À 00C0 128 |
Ả 1EA2 129 |
à 00C3 130 |
Á 00C1 131 |
Ạ 1EA0 132 |
Ặ 1EB6 133 |
Ậ 1EAC 134 |
È 00C8 135 |
Ẻ 1EBA 136 |
Ẽ 1EBC 137 |
É 00C9 138 |
Ẹ 1EB8 139 |
Ệ 1EC6 140 |
Ì 00CC 141 |
Ỉ 1EC8 142 |
Ĩ 0128 143 |
9_ | Í 00CD 144 |
Ị 1ECA 145 |
Ò 00D2 146 |
Ỏ 1ECE 147 |
Õ 00D5 148 |
Ó 00D3 149 |
Ọ 1ECC 150 |
Ộ 1ED8 151 |
Ờ 1EDC 152 |
Ở 1EDE 153 |
Ỡ 1EE0 154 |
Ớ 1EDA 155 |
Ợ 1EE2 156 |
Ù 00D9 157 |
Ủ 1EE6 158 |
Ũ 0168 159 |
A_ | NBSP 00A0 160 |
Ă 0102 161 |
 00C2 162 |
Ê 00CA 163 |
Ô 00D4 164 |
Ơ 01A0 165 |
Ư 01AF 166 |
Đ 0110 167 |
ă 0103 168 |
â 00E2 169 |
ê 00EA 170 |
ô 00F4 171 |
ơ 01A1 172 |
ư 01B0 173 |
đ 0111 174 |
Ằ 1EB0 175 |
B_ | ̀ 0300 176 |
̉ 0309 177 |
̃ 0303 178 |
́ 0301 179 |
̣ 0323 180 |
à 00E0 181 |
ả 1EA3 182 |
ã 00E3 183 |
á 00E1 184 |
ạ 1EA1 185 |
Ẳ 1EB2 186 |
ằ 1EB1 187 |
ẳ 1EB3 188 |
ẵ 1EB5 189 |
ắ 1EAF 190 |
Ẵ 1EB4 191 |
C_ | Ắ 1EAE 192 |
Ầ 1EA6 193 |
Ẩ 1EA8 194 |
Ẫ 1EAA 195 |
Ấ 1EA4 196 |
Ề 1EC0 197 |
ặ 1EB7 198 |
ầ 1EA7 199 |
ẩ 1EA9 200 |
ẫ 1EAB 201 |
ấ 1EA5 202 |
ậ 1EAD 203 |
è 00E8 204 |
Ể 1EC2 205 |
ẻ 1EBB 206 |
ẽ 1EBD 207 |
D_ | é 00E9 208 |
ẹ 1EB9 209 |
ề 1EC1 210 |
ể 1EC3 211 |
ễ 1EC5 212 |
ế 1EBF 213 |
ệ 1EC7 214 |
ì 00EC 215 |
ỉ 1EC9 216 |
Ễ 1EC4 217 |
Ế 1EBE 218 |
Ồ 1ED2 219 |
ĩ 0129 220 |
í 00ED 221 |
ị 1ECB 222 |
ò 00F2 223 |
E_ | Ổ 1ED4 224 |
ỏ 1ECF 225 |
õ 00F5 226 |
ó 00F3 227 |
ọ 1ECD 228 |
ồ 1ED3 229 |
ổ 1ED5 230 |
ỗ 1ED7 231 |
ố 1ED1 232 |
ộ 1ED9 233 |
ờ 1EDD 234 |
ở 1EDF 235 |
ỡ 1EE1 236 |
ớ 1EDB 237 |
ợ 1EE3 238 |
ù 00F9 239 |
F_ | Ỗ 1ED6 240 |
ủ 1EE7 241 |
ũ 0169 242 |
ú 00FA 243 |
ụ 1EE5 244 |
ừ 1EEB 245 |
ử 1EED 246 |
ữ 1EEF 247 |
ứ 1EE9 248 |
ự 1EF1 249 |
ỳ 1EF3 250 |
ỷ 1EF7 251 |
ỹ 1EF9 252 |
ý 00FD 253 |
ỵ 1EF5 254 |
Ố 1ED0 255 |
_0 | _1 | _2 | _3 | _4 | _5 | _6 | _7 | _8 | _9 | _A | _B | _C | _D | _E | _F |