ASCII
ASCII is the American Standard Code for Information Interchange.
It is a 7-bit code. Many 8-bit codes (such as ISO 8859-1,
the Linux default character set) contain
ASCII as their lower half.
The international counterpart of
ASCII is known as ISO 646.
The
ASCII code has three parts:
-
The null character (0)
-
Control codes (from 1 to 31)
-
Visible characters (from 32 to 126)
-
The rubout (delete) character 127
The visible characters from 32 to 126
Decimal ASCII table
| 30 40 50 60 70 80 90 100 110 120
--+----------------------------------------
0 | ( 2 < F P Z d n x
1 | ) 3 = G Q [ e o y
2 | SPC * 4 > H R \ f p z
3 | ! + 5 ? I S ] g q {
4 | " , 6 @ J T ^ h r |
5 | # - 7 A K U _ i s }
6 | $ . 8 B L V ` j t ~
7 | % / 9 C M W a k u DEL
8 | & 0 : D N X b l v
9 | ' 1 ; E O Y c m w
Hexadecimal ASCII table
| 2 3 4 5 6 7
--+------------------------
0 | SPC 0 @ P ` p
1 | ! 1 A Q a q
2 | " 2 B R b r
3 | # 3 C S c s
4 | $ 4 D T d t
5 | % 5 E U e u
6 | & 6 F V f v
7 | ' 7 G W g w
8 | ( 8 H X h x
9 | ) 9 I Y i y
A | * : J Z j z
B | + ; K [ k {
C | , < L \ l |
D | - = M ] m }
E | . > N ^ n ~
F | / ? O _ o DEL
The control characters from 0 to 31
Control characters
Decimal Hexadecimal Name Gambas character
-----------------------------------------------------------------------------
0 00 NUL '\0'
1 01 SOH Start of Header
2 02 STX Start of Text
3 03 ETX End of Text
4 04 EOT End of Transmission
5 05 ENQ Enquiry
6 06 ACK (positive) Acknowledgement
7 07 BEL Audible Signal (Bell or Beep) '\a' (1)
8 08 BS Backspace '\b'
9 09 HT Horizontal Tab '\t'
10 0A LF Line Feed '\n'
11 0B VT Vertical Tab '\v'
12 0C FF Form Feed '\f'
13 0D CR Carriage Return '\r'
14 0E SO Shift Out
15 0F SI Shift In
16 10 DLE Data Link Escape
17 11 DC1 Device Control 1
18 12 DC2 Device Control 2
19 13 DC3 Device Control 3
20 14 DC4 Device Control 4
21 15 NAK negative Acknowledgement
22 16 SYN Synchronise
23 17 ETB End of Transmission Block
24 18 CAN Cancel
25 19 EM End Of Medium
26 1A SUB Substitute
27 1B ESC Escape
28 1C FS File Separator
29 1D GS Group Separator
30 1E RS Record Separator
31 1F US Unit Separator
(1) Not yet implemented
This documentation comes from the 'man' page of the Linux Programmer's Manual.