====== Unicode, UTF-8 and fontviewer ======

===== Unicode =====

At the rio rc prompt:

<code>
cpu% cat /lib/keyboard|grep 'superscript digit two'
00B2  s2          ²    superscript digit two
cpu% grep< /lib/keyboard -e 'superscript digit two'
00B2  s2          ²    superscript digit two
cpu% grep 'superscript digit two' /lib/keyboard
00B2  s2          ²    superscript digit two
cpu% unicode 00B2
²
cpu%
</code>

<code>
cpu% g 'superscript digit two' /lib/keyboard
/lib/keyboard:18: 00B2  s2          ²  superscript digit two
cpu% unicode 00B2
cpu%
²
cpu%
</code>

<code>
cpu% page /lib/keyboard
</code>

Within acme:

<code>
cpu% acme
</code>

^Newcol Kill Putall Dump Exit^^^
|**New Cut Paste Snarf Sort Zerox Delcol Mail**|:::|⇐ Mouse button 2 press //New//.|

^Newcol Kill Putall Dump Exit^^^
|**New Cut Paste Snarf Sort Zerox Delcol Mail**|:::|
|**Del Snarf : Look**|
|[blank panel]|

^Newcol Kill Putall Dump Exit^^^
|**New Cut Paste Snarf Sort Zerox Delcol Mail**|
|**Del Snarf : Look**|
|[blank panel]|:::|⇐ Type //cat <nowiki>/</nowiki>lib<nowiki>/</nowiki>keyboard|grep 'superscript digit two'// in the panel.|

^Newcol Kill Putall Dump Exit^^^
|**New Cut Paste Snarf Sort Zerox Delcol Mail**|
|**Del Snarf : Look**|
|cat /lib/keyboard<nowiki>|</nowiki>grep 'superscript digit two'|:::|⇐ Highlight the text string, then mouse button 2 press to execute the command.|
|grep< /lib/keyboard -e 'superscript digit two'|:::|⇐ Highlight the text string, then mouse button 2 press to execute the command.|
|grep 'superscript digit two' /lib/keyboard|:::|⇐ Highlight the text string, then mouse button 2 press to execute the command.|

===== UTF-8 =====

<code>
cpu% man utf
</code>

===== keyboard =====

<code>
cpu% man keyboard
</code>

<code>
cpu% grep smiley /lib/keyboard
263A  :)          ☺   smiley face
</code>

<code>
cpu% grep 'fraction one half' /lib/keyboard
00BD  12          ½    fraction one half
</code>

|x|//The sequence for entering 8 1/2 on an IBM keyboard is// ''8-ALT-1-2''.|

<code>
cpu% pwd
/sys/doc
cpu% cd 8½
cpu% pwd
/sys/doc/8½
cpu%
</code>

===== fontviewer =====

<code>
cpu% fontviewer
</code>

^Font Family:^^^
|//Plem//|:::|⇐ Mouse button 1 press to select a menu.|
|**Font File:**|:::|
|//unicode.9.font//|:::|⇐ Mouse button 1 press to select a menu.|
|The quick brown fox jumps over the lazy dog|:::|
|A B C D E F G H I|:::|
|J K L M N O P Q R|:::|
|S T U V W X Y Z|:::|
|a b c d e f g h i|:::|
|j k l m n o p q r|:::|
|s t u v w x y z|:::|
|0123456789|:::|