This repo is a collection of ASCII-encoded plaintext files. Each file contains a single table. The content and format of each table has been carefully designed to not exceed 80×34, yet complete enough to serve as a useful reference (except for ascii-list.tbl, intended for machines). These formats ease readability in modest command-line terminals.
| File (URL) | Description |
|---|---|
ascii-a.tbl (raw) |
ASCII table (decimal, hex, symbol/glyph, control, and escape) for codes 0-127 |
ascii-b.tbl (raw) |
Alternate format of ascii-a.tbl |
ascii-c.tbl (raw) |
Alternate format of ascii-a.tbl |
ascii-tiny.tbl (raw) |
Reduced table data for smaller screens |
ascii-list.tbl (raw) |
Easy-to-parse single-column format |
charclass.tbl (raw) |
All POSIX and Perl 5 regex character classes with ASCII pattern and description |
Download a table (see the raw URLs above) and create a shell alias to print its content.
For example:
curl -o /usr/local/share/ascii-a.tbl https://raw.githubusercontent.com/ardnew/chars/main/ascii-a.tbl
alias ascii="cat /usr/local/share/ascii-a.tbl"Clone this repo, install the tables and shell scripts using the given Makefile:
git clone https://github.com/ardnew/chars
cd chars
make install [PREFIX=/usr/local]You can then print the ASCII or character class tables:
ascii # ascii-a.tbl (default)
ascii b # ascii-b.tbl
ascii tiny # ascii-tiny.tbl
ascii list # ...
charclass+ ---------------- + ---------- + ---------- + ---------- +
| 0 00 NUL ^@ \0 | 32 20 SP | 64 40 @ | 96 60 ` |
| 1 01 SOH ^A | 33 21 ! | 65 41 A | 97 61 a |
| 2 02 STX ^B | 34 22 " | 66 42 B | 98 62 b |
| 3 03 ETX ^C | 35 23 # | 67 43 C | 99 63 c |
| 4 04 EOT ^D | 36 24 $ | 68 44 D | 100 64 d |
| 5 05 ENQ ^E | 37 25 % | 69 45 E | 101 65 e |
| 6 06 ACK ^F | 38 26 & | 70 46 F | 102 66 f |
| 7 07 BEL ^G \a | 39 27 ' | 71 47 G | 103 67 g |
| 8 08 BS ^H \b | 40 28 ( | 72 48 H | 104 68 h |
| 9 09 TAB ^I \t | 41 29 ) | 73 49 I | 105 69 i |
| 10 0A LF ^J \n | 42 2A * | 74 4A J | 106 6A j |
| 11 0B VT ^K \v | 43 2B + | 75 4B K | 107 6B k |
| 12 0C FF ^L \f | 44 2C , | 76 4C L | 108 6C l |
| 13 0D CR ^M \r | 45 2D - | 77 4D M | 109 6D m |
| 14 0E SO ^N | 46 2E . | 78 4E N | 110 6E n |
| 15 0F SI ^O | 47 2F / | 79 4F O | 111 6F o |
| 16 10 DLE ^P | 48 30 0 | 80 50 P | 112 70 p |
| 17 11 DC1 ^Q | 49 31 1 | 81 51 Q | 113 71 q |
| 18 12 DC2 ^R | 50 32 2 | 82 52 R | 114 72 r |
| 19 13 DC3 ^S | 51 33 3 | 83 53 S | 115 73 s |
| 20 14 DC4 ^T | 52 34 4 | 84 54 T | 116 74 t |
| 21 15 NAK ^U | 53 35 5 | 85 55 U | 117 75 u |
| 22 16 SYN ^V | 54 36 6 | 86 56 V | 118 76 v |
| 23 17 ETB ^W | 55 37 7 | 87 57 W | 119 77 w |
| 24 18 CAN ^X | 56 38 8 | 88 58 X | 120 78 x |
| 25 19 EM ^Y | 57 39 9 | 89 59 Y | 121 79 y |
| 26 1A SUB ^Z | 58 3A : | 90 5A Z | 122 7A z |
| 27 1B ESC ^[ \e | 59 3B ; | 91 5B [ | 123 7B { |
| 28 1C FS ^\ | 60 3C < | 92 5C \ | 124 7C | |
| 29 1D GS ^] | 61 3D = | 93 5D ] | 125 7D } |
| 30 1E RS ^^ | 62 3E > | 94 5E ^ | 126 7E ~ |
| 31 1F US ^_ | 63 3F ? | 95 5F _ | 127 7F DEL |
+ ---------------- + ---------- + ---------- + ---------- +.------------------..------------..------------..------------.
[ 0 00 NUL ^@ \0 ][ 32 20 SP ][ 64 40 @ ][ 96 60 ` ]
[ 1 01 SOH ^A ][ 33 21 ! ][ 65 41 A ][ 97 61 a ]
[ 2 02 STX ^B ][ 34 22 " ][ 66 42 B ][ 98 62 b ]
[ 3 03 ETX ^C ][ 35 23 # ][ 67 43 C ][ 99 63 c ]
[ 4 04 EOT ^D ][ 36 24 $ ][ 68 44 D ][ 100 64 d ]
[ 5 05 ENQ ^E ][ 37 25 % ][ 69 45 E ][ 101 65 e ]
[ 6 06 ACK ^F ][ 38 26 & ][ 70 46 F ][ 102 66 f ]
[ 7 07 BEL ^G \a ][ 39 27 ' ][ 71 47 G ][ 103 67 g ]
[ 8 08 BS ^H \b ][ 40 28 ( ][ 72 48 H ][ 104 68 h ]
[ 9 09 TAB ^I \t ][ 41 29 ) ][ 73 49 I ][ 105 69 i ]
[ 10 0A LF ^J \n ][ 42 2A * ][ 74 4A J ][ 106 6A j ]
[ 11 0B VT ^K \v ][ 43 2B + ][ 75 4B K ][ 107 6B k ]
[ 12 0C FF ^L \f ][ 44 2C , ][ 76 4C L ][ 108 6C l ]
[ 13 0D CR ^M \r ][ 45 2D - ][ 77 4D M ][ 109 6D m ]
[ 14 0E SO ^N ][ 46 2E . ][ 78 4E N ][ 110 6E n ]
[ 15 0F SI ^O ][ 47 2F / ][ 79 4F O ][ 111 6F o ]
[ 16 10 DLE ^P ][ 48 30 0 ][ 80 50 P ][ 112 70 p ]
[ 17 11 DC1 ^Q ][ 49 31 1 ][ 81 51 Q ][ 113 71 q ]
[ 18 12 DC2 ^R ][ 50 32 2 ][ 82 52 R ][ 114 72 r ]
[ 19 13 DC3 ^S ][ 51 33 3 ][ 83 53 S ][ 115 73 s ]
[ 20 14 DC4 ^T ][ 52 34 4 ][ 84 54 T ][ 116 74 t ]
[ 21 15 NAK ^U ][ 53 35 5 ][ 85 55 U ][ 117 75 u ]
[ 22 16 SYN ^V ][ 54 36 6 ][ 86 56 V ][ 118 76 v ]
[ 23 17 ETB ^W ][ 55 37 7 ][ 87 57 W ][ 119 77 w ]
[ 24 18 CAN ^X ][ 56 38 8 ][ 88 58 X ][ 120 78 x ]
[ 25 19 EM ^Y ][ 57 39 9 ][ 89 59 Y ][ 121 79 y ]
[ 26 1A SUB ^Z ][ 58 3A : ][ 90 5A Z ][ 122 7A z ]
[ 27 1B ESC ^[ \e ][ 59 3B ; ][ 91 5B [ ][ 123 7B { ]
[ 28 1C FS ^\ ][ 60 3C < ][ 92 5C \ ][ 124 7C | ]
[ 29 1D GS ^] ][ 61 3D = ][ 93 5D ] ][ 125 7D } ]
[ 30 1E RS ^^ ][ 62 3E > ][ 94 5E ^ ][ 126 7E ~ ]
[ 31 1F US ^_ ][ 63 3F ? ][ 95 5F _ ][ 127 7F DEL ]
'------------------''------------''------------''------------'0 00 NUL ^@ \0 32 20 SP 64 40 @ 96 60 `
1 01 SOH ^A 33 21 ! 65 41 A 97 61 a
2 02 STX ^B 34 22 " 66 42 B 98 62 b
3 03 ETX ^C 35 23 # 67 43 C 99 63 c
4 04 EOT ^D 36 24 $ 68 44 D 100 64 d
5 05 ENQ ^E 37 25 % 69 45 E 101 65 e
6 06 ACK ^F 38 26 & 70 46 F 102 66 f
7 07 BEL ^G \a 39 27 ' 71 47 G 103 67 g
8 08 BS ^H \b 40 28 ( 72 48 H 104 68 h
9 09 TAB ^I \t 41 29 ) 73 49 I 105 69 i
10 0A LF ^J \n 42 2A * 74 4A J 106 6A j
11 0B VT ^K \v 43 2B + 75 4B K 107 6B k
12 0C FF ^L \f 44 2C , 76 4C L 108 6C l
13 0D CR ^M \r 45 2D - 77 4D M 109 6D m
14 0E SO ^N 46 2E . 78 4E N 110 6E n
15 0F SI ^O 47 2F / 79 4F O 111 6F o
16 10 DLE ^P 48 30 0 80 50 P 112 70 p
17 11 DC1 ^Q 49 31 1 81 51 Q 113 71 q
18 12 DC2 ^R 50 32 2 82 52 R 114 72 r
19 13 DC3 ^S 51 33 3 83 53 S 115 73 s
20 14 DC4 ^T 52 34 4 84 54 T 116 74 t
21 15 NAK ^U 53 35 5 85 55 U 117 75 u
22 16 SYN ^V 54 36 6 86 56 V 118 76 v
23 17 ETB ^W 55 37 7 87 57 W 119 77 w
24 18 CAN ^X 56 38 8 88 58 X 120 78 x
25 19 EM ^Y 57 39 9 89 59 Y 121 79 y
26 1A SUB ^Z 58 3A : 90 5A Z 122 7A z
27 1B ESC ^[ \e 59 3B ; 91 5B [ 123 7B {
28 1C FS ^\ 60 3C < 92 5C \ 124 7C |
29 1D GS ^] 61 3D = 93 5D ] 125 7D }
30 1E RS ^^ 62 3E > 94 5E ^ 126 7E ~
31 1F US ^_ 63 3F ? 95 5F _ 127 7F DEL|00 NUL |10 DLE |20 SP |30 0 |40 @ |50 P |60 ` |70 p
|01 SOH |11 DC1 |21 ! |31 1 |41 A |51 Q |61 a |71 q
|02 STX |12 DC2 |22 " |32 2 |42 B |52 R |62 b |72 r
|03 ETX |13 DC3 |23 # |33 3 |43 C |53 S |63 c |73 s
|04 EOT |14 DC4 |24 $ |34 4 |44 D |54 T |64 d |74 t
|05 ENQ |15 NAK |25 % |35 5 |45 E |55 U |65 e |75 u
|06 ACK |16 SYN |26 & |36 6 |46 F |56 V |66 f |76 v
|07 BEL |17 ETB |27 ' |37 7 |47 G |57 W |67 g |77 w
|08 BS |18 CAN |28 ( |38 8 |48 H |58 X |68 h |78 x
|09 TAB |19 EM |29 ) |39 9 |49 I |59 Y |69 i |79 y
|0A LF |1A SUB |2A * |3A : |4A J |5A Z |6A j |7A z
|0B VT |1B ESC |2B + |3B ; |4B K |5B [ |6B k |7B {
|0C FF |1C FS |2C , |3C < |4C L |5C \ |6C l |7C |
|0D CR |1D GS |2D - |3D = |4D M |5D ] |6D m |7D }
|0E SO |1E RS |2E . |3E > |4E N |5E ^ |6E n |7E ~
|0F SI |1F US |2F / |3F ? |4F O |5F _ |6F o |7F DEL0 00 NUL ^@ \0
1 01 SOH ^A
2 02 STX ^B
3 03 ETX ^C
4 04 EOT ^D
5 05 ENQ ^E
6 06 ACK ^F
7 07 BEL ^G \a
8 08 BS ^H \b
9 09 TAB ^I \t
10 0A LF ^J \n
11 0B VT ^K \v
12 0C FF ^L \f
13 0D CR ^M \r
14 0E SO ^N
15 0F SI ^O
16 10 DLE ^P
17 11 DC1 ^Q
18 12 DC2 ^R
19 13 DC3 ^S
20 14 DC4 ^T
21 15 NAK ^U
22 16 SYN ^V
23 17 ETB ^W
24 18 CAN ^X
25 19 EM ^Y
26 1A SUB ^Z
27 1B ESC ^[ \e
28 1C FS ^\
29 1D GS ^]
30 1E RS ^^
31 1F US ^_
32 20 SP
33 21 !
34 22 "
35 23 #
36 24 $
37 25 %
38 26 &
39 27 '
40 28 (
41 29 )
42 2A *
43 2B +
44 2C ,
45 2D -
46 2E .
47 2F /
48 30 0
49 31 1
50 32 2
51 33 3
52 34 4
53 35 5
54 36 6
55 37 7
56 38 8
57 39 9
58 3A :
59 3B ;
60 3C <
61 3D =
62 3E >
63 3F ?
64 40 @
65 41 A
66 42 B
67 43 C
68 44 D
69 45 E
70 46 F
71 47 G
72 48 H
73 49 I
74 4A J
75 4B K
76 4C L
77 4D M
78 4E N
79 4F O
80 50 P
81 51 Q
82 52 R
83 53 S
84 54 T
85 55 U
86 56 V
87 57 W
88 58 X
89 59 Y
90 5A Z
91 5B [
92 5C \
93 5D ]
94 5E ^
95 5F _
96 60 `
97 61 a
98 62 b
99 63 c
100 64 d
101 65 e
102 66 f
103 67 g
104 68 h
105 69 i
106 6A j
107 6B k
108 6C l
109 6D m
110 6E n
111 6F o
112 70 p
113 71 q
114 72 r
115 73 s
116 74 t
117 75 u
118 76 v
119 77 w
120 78 x
121 79 y
122 7A z
123 7B {
124 7C |
125 7D }
126 7E ~
127 7F DEL+ ------ + -- + ---------------------------------- + ------------------------- +
| POSIX* | pl | ASCII | Description |
+ ------ + -- + ---------------------------------- + ------------------------- +
| alnum | -- | [A-Za-z0-9] | alphanumeric |
| word* | \w | [A-Za-z0-9_] | alphanumeric + underscore |
| -- | \W | [^A-Za-z0-9_] | non-word |
| alpha | -- | [A-Za-z] | alphabetic |
| ascii* | -- | [\x00-\x7F] | ASCII standard |
| blank | -- | [ \t] | space and tab |
| -- | \b | (?<=\W)(?=\w)|(?<=\w)(?=\W) | word boundary |
| cntrl | -- | [\x00-\x1F\x7F] | control character |
| digit | \d | [0-9] | digit |
| -- | \D | [^0-9] | non-digit |
| graph | -- | [\x21-\x7E] | visible |
| lower | -- | [a-z] | lowercase alphabetic |
| print | -- | [\x20-\x7E] | visible and space |
| punct | -- | [][!"#$%&'()*+,./:;<=>?@\^_`{|}~-] | punctuation |
| space | \s | [ \t\r\n\v\f] | whitespace |
| -- | \S | [^ \t\r\n\v\f] | non-whitespace |
| upper | -- | [A-Z] | uppercase alphabetic |
| xdigit | -- | [A-Fa-f0-9] | hexadecimal digit |
| -- | -- | [^A-Fa-f0-9] | non-hexadecimal digit |
+ ------ + -- + ---------------------------------- + ------------------------- +| # | Symbol | Glyph |
|---|---|---|
00 |
NUL |
␀ |
01 |
SOH |
␁ |
02 |
STX |
␂ |
03 |
ETX |
␃ |
04 |
EOT |
␄ |
05 |
ENQ |
␅ |
06 |
ACK |
␆ |
07 |
BEL |
␇ |
08 |
BS |
␈ |
09 |
HT |
␉ |
0A |
LF |
␊ |
0B |
VT |
␋ |
0C |
FF |
␌ |
0D |
CR |
␍ |
0E |
SO |
␎ |
0F |
SI |
␏ |
10 |
DLE |
␐ |
11 |
DC1 |
␑ |
12 |
DC2 |
␒ |
13 |
DC3 |
␓ |
14 |
DC4 |
␔ |
15 |
NAK |
␕ |
16 |
SYN |
␖ |
17 |
ETB |
␗ |
18 |
CAN |
␘ |
19 |
EM |
␙ |
1A |
SUB |
␚ |
1B |
ESC |
␛ |
1C |
FS |
␜ |
1D |
GS |
␝ |
1E |
RS |
␞ |
1F |
US |
␟ |
20 |
SP |
␠ |
7F |
DEL |
␡ |