'\" t
.\" Copyright (c) 1993 Michael Haardt (michael@moria.de)
-.\" Created Fri Apr 2 11:32:09 MET DST 1993
.\"
+.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
-.\" License along with this manual; if not, write to the Free
-.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111
-.\" USA.
+.\" License along with this manual; if not, see
+.\" <http://www.gnu.org/licenses/>.
+.\" %%%LICENSE_END
.\"
+.\" Created 1993-04-02 by Michael Haardt (michael@moria.de)
.\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu)
.\" Modified 1994-05-15 by Daniel Quinlan (quinlan@yggdrasil.com)
.\" Modified 1994-11-22 by Daniel Quinlan (quinlan@yggdrasil.com)
.\" Modified 1999-08-08 by Michael Haardt (michael@moria.de)
.\" Modified 2004-04-01 by aeb
.\"
-.TH ASCII 7 2004-04-01 "Linux" "Linux Programmer's Manual"
+.TH ASCII 7 2016-10-08 "Linux" "Linux Programmer's Manual"
.SH NAME
-ascii \- the ASCII character set encoded in octal, decimal, and hexadecimal
+ascii \- ASCII character set encoded in octal, decimal,
+and hexadecimal
.SH DESCRIPTION
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.
-.LP
+It is a 7-bit code.
+Many 8-bit codes (e.g., ISO 8859-1) contain ASCII as their lower half.
+The international counterpart of ASCII is known as ISO 646-IRV.
+.PP
The following table contains the 128 ASCII characters.
-.LP
-C program \f(CW'\eX'\fP escapes are noted.
+.PP
+C program \f(CW\(aq\eX\(aq\fP escapes are noted.
.if t \{\
-.in 1i
.ft CW
\}
.TS
l l l l l l l l.
Oct Dec Hex Char Oct Dec Hex Char
_
-000 0 00 NUL '\e0' 100 64 40 @
+000 0 00 NUL \(aq\e0\(aq (null character) 100 64 40 @
001 1 01 SOH (start of heading) 101 65 41 A
002 2 02 STX (start of text) 102 66 42 B
003 3 03 ETX (end of text) 103 67 43 C
004 4 04 EOT (end of transmission) 104 68 44 D
005 5 05 ENQ (enquiry) 105 69 45 E
006 6 06 ACK (acknowledge) 106 70 46 F
-007 7 07 BEL '\ea' (bell) 107 71 47 G
-010 8 08 BS '\eb' (backspace) 110 72 48 H
-011 9 09 HT '\et' (horizontal tab) 111 73 49 I
-012 10 0A LF '\en' (new line) 112 74 4A J
-013 11 0B VT '\ev' (vertical tab) 113 75 4B K
-014 12 0C FF '\ef' (form feed) 114 76 4C L
-015 13 0D CR '\er' (carriage ret) 115 77 4D M
+007 7 07 BEL \(aq\ea\(aq (bell) 107 71 47 G
+010 8 08 BS \(aq\eb\(aq (backspace) 110 72 48 H
+011 9 09 HT \(aq\et\(aq (horizontal tab) 111 73 49 I
+012 10 0A LF \(aq\en\(aq (new line) 112 74 4A J
+013 11 0B VT \(aq\ev\(aq (vertical tab) 113 75 4B K
+014 12 0C FF \(aq\ef\(aq (form feed) 114 76 4C L
+015 13 0D CR \(aq\er\(aq (carriage ret) 115 77 4D M
016 14 0E SO (shift out) 116 78 4E N
017 15 0F SI (shift in) 117 79 4F O
020 16 10 DLE (data link escape) 120 80 50 P
031 25 19 EM (end of medium) 131 89 59 Y
032 26 1A SUB (substitute) 132 90 5A Z
033 27 1B ESC (escape) 133 91 5B [
-034 28 1C FS (file separator) 134 92 5C \e '\e\e'
+034 28 1C FS (file separator) 134 92 5C \e \(aq\e\e\(aq
035 29 1D GS (group separator) 135 93 5D ]
036 30 1E RS (record separator) 136 94 5E ^
037 31 1F US (unit separator) 137 95 5F \&_
044 36 24 $ 144 100 64 d
045 37 25 % 145 101 65 e
046 38 26 & 146 102 66 f
-047 39 27 ' 147 103 67 g
+047 39 27 \(aq 147 103 67 g
050 40 28 ( 150 104 68 h
051 41 29 ) 151 105 69 i
052 42 2A * 152 106 6A j
076 62 3E > 176 126 7E ~
077 63 3F ? 177 127 7F DEL
.TE
-.fi
.if t \{\
.in
.ft P
\}
-.SH HISTORY
+.SS Tables
+For convenience, below are more compact tables in hex and decimal.
+.PP
+.nf
+.if t \{\
+.in 1i
+.ft CW
+\}
+ 2 3 4 5 6 7 30 40 50 60 70 80 90 100 110 120
+ ------------- ---------------------------------
+0: 0 @ P \` p 0: ( 2 < F P Z d n x
+1: ! 1 A Q a q 1: ) 3 = G Q [ e o y
+2: " 2 B R b r 2: * 4 > H R \e f p z
+3: # 3 C S c s 3: ! + 5 ? I S ] g q {
+4: $ 4 D T d t 4: " , 6 @ J T ^ h r |
+5: % 5 E U e u 5: # \- 7 A K U _ i s }
+6: & 6 F V f v 6: $ . 8 B L V \` j t ~
+7: \(aq 7 G W g w 7: % / 9 C M W a k u DEL
+8: ( 8 H X h x 8: & 0 : D N X b l v
+9: ) 9 I Y i y 9: \(aq 1 ; E O Y c m w
+A: * : J Z j z
+B: + ; K [ k {
+C: , < L \e l |
+D: \- = M ] m }
+E: . > N ^ n ~
+F: / ? O _ o DEL
+.if t \{\
+.in
+.ft P
+\}
+.fi
+.SH NOTES
+.SS History
An
.B ascii
manual page appeared in Version 7 of AT&T UNIX.
-.LP
+.PP
On older terminals, the underscore code is displayed as a left arrow,
called backarrow, the caret is displayed as an up-arrow and the vertical
bar has a hole in the middle.
-.LP
+.PP
Uppercase and lowercase characters differ by just one bit and the
ASCII character 2 differs from the double quote by just one bit, too.
That made it much easier to encode characters mechanically or with a
non-microcontroller-based electronic keyboard and that pairing was found
on old teletypes.
-.LP
+.PP
The ASCII standard was published by the United States of America
Standards Institute (USASI) in 1968.
.\"
.\" designated X3.2.4. In 1966, ASA became the United States of America
.\" Standards Institute (USASI) and published ASCII in 1968. It became the
.\" American National Standards Institute (ANSI) in 1969 and is the
-.\" U.S. member body of ISO; private and non-profit.
+.\" U.S. member body of ISO; private and nonprofit.
.\"
-.SH "SEE ALSO"
+.SH SEE ALSO
+.BR charsets (7),
.BR iso_8859-1 (7),
+.BR iso_8859-10 (7),
+.BR iso_8859-11 (7),
+.BR iso_8859-13 (7),
+.BR iso_8859-14 (7),
.BR iso_8859-15 (7),
.BR iso_8859-16 (7),
.BR iso_8859-2 (7),
+.BR iso_8859-3 (7),
+.BR iso_8859-4 (7),
+.BR iso_8859-5 (7),
+.BR iso_8859-6 (7),
.BR iso_8859-7 (7),
-.BR iso_8859-9 (7)
-.SH TABLES
-For convenience, let us give more compact tables in hex and decimal.
-.sp
-.nf
- 2 3 4 5 6 7 30 40 50 60 70 80 90 100 110 120
- ------------- ---------------------------------
-0: 0 @ P ` p 0: ( 2 < F P Z d n x
-1: ! 1 A Q a q 1: ) 3 = G Q [ e o y
-2: " 2 B R b r 2: * 4 > H R \e f p z
-3: # 3 C S c s 3: ! + 5 ? I S ] g q {
-4: $ 4 D T d t 4: " , 6 @ J T ^ h r |
-5: % 5 E U e u 5: # \- 7 A K U _ i s }
-6: & 6 F V f v 6: $ . 8 B L V ` j t ~
-7: ' 7 G W g w 7: % / 9 C M W a k u DEL
-8: ( 8 H X h x 8: & 0 : D N X b l v
-9: ) 9 I Y i y 9: ' 1 ; E O Y c m w
-A: * : J Z j z
-B: + ; K [ k {
-C: , < L \e l |
-D: \- = M ] m }
-E: . > N ^ n ~
-F: / ? O _ o DEL
-.fi
+.BR iso_8859-8 (7),
+.BR iso_8859-9 (7),
+.BR utf-8 (7)
projects / thirdparty / man-pages.git / blobdiff