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Control character - Wikipedia
In computing and telecommunication, a control character or non-printing character (NPC) is a code point (a number) in a character set, that does not represent a written symbol. They are used as in-band signaling to cause effects other than the addition of a symbol to the text. All other characters are mainly printing, printable, or graphic characters, except perhaps for the "space" character (see ASCII printable characters).

All entries in the ASCII table below code 32 (technically the C0 control code set) are of this kind, including CR and LF used to separate lines of text. The code 127 (DEL) is also a control character[citation needed]. Extended ASCII sets defined by ISO 8859 added the codes 128 through 159 as control characters, this was primarily done so that if the high bit was stripped it would not change a printing character to a C0 control code, but there have been some assignments here, in particular NEL. This second set is called the C1 set.
ascii  ansi  utf8  unicode  reference 
yesterday by dusko
Unicode Characters Table
Since its conception, ASCII codes knew many evolutions and, in the 1990's, evolved to a new code called Unicode™ that handles alphabets of many nations and symbols.

The Unicode code space is divided into 17 planes (http://ascii-table.com/unicode-planes.php). Each plane contains 65,536 code points (16-bit) and consists of several charts.

If the Unicode standard can handle up to 1,114,112 characters (http://ascii-table.com/unicode-characters.php), it currently assigns characters to more than 96,000 of those code points.

The first 256 characters table is identical to the ISO 8859-1 character set (the ANSI table (http://ascii-table.com/ansi-table.php) is identical to the ISO 8859-1 table, except in the range 80h-9Fh where we can find C1 control characters). The first 128 characters table is hence identical to the standard ASCII table (http://ascii-table.com/ascii.php).
unicode  utf8  ascii  ansi  reference 
2 days ago by dusko
How can I add more keyboards to X server - fbxkb home page
Q4. How can I add more keyboards to X server

You can use setxkbmap to do it. For example, to load 3 keyboards - english, german and italian (us, de, it) and to switch betwean them using both shifts, run this:

setxkbmap -option grp:switch,grp:shifts_toggle,grp_led:scroll us,de,it

Alternatively, you can edit /etc/X11/XF86Config and restart X server, but any subsequent setxkbmap will overwrite those settings. Here is quote from my XF86Config

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbLayout" "us,ru(phonetic)"
Option "XkbOptions" "grp:shifts_toggle,grp_led:scroll"

And same thing with setxkbmap

setxkbmap -option grp:switch,grp:shifts_toggle,grp_led:scroll 'us,ru(phonetic)'
x11  xorg  keyboard  unicode  utf8  linux  bsd  freebsd 
5 days ago by dusko
encoding - Using PowerShell to write a file in UTF-8 without the BOM - Stack Overflow | https://stackoverflow.com/
<code class="language-powershell">
Get-Content path/to/file.ext | out-file -encoding ASCII targetFile.ext
utf16  utf8  bom  utf  unicode  powershell  textprocessing  solution 
7 weeks ago by kme
BurntSushi/bstr: A string type for Rust that is not required to be valid UTF-8.
A string type for Rust that is not required to be valid UTF-8. - BurntSushi/bstr
rust  utf8  bytestring 
9 weeks ago by omen
Getting out of MySQL Character Set Hell
a useful set of things to do when mysql is barfing double utf8
unicode  utf8  mysql  php  encoding 
9 weeks ago by pjjw

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