2021-01-21 13:40:28 +01:00
|
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
|
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
|
|
|
|
|
<html xmlns="http://www.w3.org/1999/xhtml"><head>
|
|
|
|
|
<title>.</title>
|
|
|
|
|
<style type="text/css">
|
|
|
|
|
|
|
|
|
|
* { color: #000; background: #fff; max-width: 700px; }
|
|
|
|
|
tt, pre { background: #dedede; color: #111; font-family: monospace;
|
|
|
|
|
white-space: pre; display: block; width: 100%; }
|
|
|
|
|
.indentedcode { margin-left: 2em; margin-right: 2em; }
|
|
|
|
|
.codeblock {
|
|
|
|
|
background: #dedede; color: #111; font-family: monospace;
|
|
|
|
|
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
|
|
|
|
|
padding: 7px;
|
|
|
|
|
display: block;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.indentedlist { margin-left: 2em; color: #000; }
|
|
|
|
|
|
|
|
|
|
span { white-space: pre; }
|
|
|
|
|
.text { color: #000; white-space: pre; background: #dedede; }
|
|
|
|
|
.colon { color: #000; background: #dedede; }
|
|
|
|
|
.note { color: #000; background: #dedede; }
|
|
|
|
|
.str { color: #000; text-decoration: underline; background: #dedede; }
|
|
|
|
|
.num { color: #000; background: #dedede; font-weight: bold; font-style: italic; }
|
|
|
|
|
.fnum { color: #000; font-weight: bold; background: #dedede; }
|
|
|
|
|
.ptr { color: #000; font-weight: bold; background: #dedede; }
|
|
|
|
|
.fetch { color: #000; font-style: italic; background: #dedede; }
|
|
|
|
|
.store { color: #000; font-style: italic; background: #dedede; }
|
|
|
|
|
.char { color: #000; background: #dedede; }
|
|
|
|
|
.inst { color: #000; background: #dedede; }
|
|
|
|
|
.defer { color: #000; background: #dedede; }
|
|
|
|
|
.imm { color: #000; font-weight: bold; background: #dedede; }
|
|
|
|
|
.prim { color: #000; font-weight: bolder; background: #dedede; }
|
|
|
|
|
|
|
|
|
|
.tt { white-space: pre; font-family: monospace; background: #dedede; }
|
|
|
|
|
|
|
|
|
|
.h1, .h2, .h3, .h4 { white-space: normal; }
|
|
|
|
|
.h1 { font-size: 125%; }
|
|
|
|
|
.h2 { font-size: 120%; }
|
|
|
|
|
.h3 { font-size: 115%; }
|
|
|
|
|
.h4 { font-size: 110%; }
|
|
|
|
|
.hr { display: block; height: 2px; background: #000000; }
|
|
|
|
|
</style>
|
|
|
|
|
</head><body>
|
2022-06-03 12:41:52 +02:00
|
|
|
<p><br/><br/>
|
2021-05-17 19:04:42 +02:00
|
|
|
Retro is written in a literate style. Most of the sources
|
2021-01-21 13:40:28 +01:00
|
|
|
are in a format called Unu. This allows easy mixing of
|
|
|
|
|
commentary and code blocks, making it simple to document
|
|
|
|
|
the code.
|
|
|
|
|
<br/><br/>
|
|
|
|
|
As an example,
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'># Determine The Average Word Name Length</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>To determine the average length of a word name two values</tt>
|
|
|
|
|
<tt class='indentedcode'>are needed. First, the total length of all names in the</tt>
|
|
|
|
|
<tt class='indentedcode'>Dictionary:</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<tt class='indentedcode'>#0 [ d:name s:length + ] d:for-each</tt>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>And then the number of words in the Dictionary:</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<tt class='indentedcode'>#0 [ drop n:inc ] d:for-each</tt>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>With these, a simple division is all that's left.</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<tt class='indentedcode'>/</tt>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>Finally, display the results:</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<tt class='indentedcode'>'Average_name_length:_%n\n s:format s:put</tt>
|
|
|
|
|
<tt class='indentedcode'>~~~</tt>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
This illustrates the format. Only code in the fenced blocks
|
|
|
|
|
(between ~~~ pairs) get extracted and run.
|
|
|
|
|
<br/><br/>
|
|
|
|
|
(Note: this only applies to source files; fences are not used
|
|
|
|
|
when entering code interactively).
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<br/><br/>
|
|
|
|
|
The name Unu comes from the Maori language, where it means:
|
|
|
|
|
<br/><br/>
|
|
|
|
|
<tt class='indentedcode'>(verb) (-hia) pull out, withdraw, draw out, extract.</tt>
|
|
|
|
|
<tt class='indentedcode'>Taken from https://maoridictionary.co.nz/</tt>
|
|
|
|
|
</p>
|
|
|
|
|
</body></html>
|
