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authorKartik K. Agaram <vc@akkartik.com>2015-05-06 00:19:03 -0700
committerKartik K. Agaram <vc@akkartik.com>2015-05-06 00:19:03 -0700
commit672e3e50c6ed6de161e40aa256c3fc0f2b1f7cf9 (patch)
tree5fa3d82e40137b15dec2941a3446e838ce43d3e5 /html/074keyboard.mu.html
parent20d1c9057a559ce8db83bbc2787ca91348bcb16f (diff)
downloadmu-672e3e50c6ed6de161e40aa256c3fc0f2b1f7cf9.tar.gz
1279 - colorized rendering of the source files
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>~/Desktop/s/mu/074keyboard.mu.html</title>
+<meta name="Generator" content="Vim/7.4">
+<meta name="plugin-version" content="vim7.4_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
+<meta name="colorscheme" content="minimal">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #d0d0d0; background-color: #000000; }
+body { font-family: monospace; color: #d0d0d0; background-color: #000000; }
+* { font-size: 1em; }
+.Identifier { color: #008080; }
+.Comment { color: #8080ff; }
+.Delimiter { color: #c000c0; }
+.Special { color: #ff6060; }
+.CommentedCode { color: #6c6c6c; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+-->
+</script>
+</head>
+<body>
+<pre id='vimCodeElement'>
+<span class="Comment"># Wrappers around keyboard primitives that take a 'keyboard' object and are thus</span>
+<span class="Comment"># easier to test.</span>
+
+container keyboard <span class="Delimiter">[</span>  <span class="Comment"># can't think of another word like screen/display, so real and fake keyboards use the same name</span>
+  index:integer
+  data:address:array:character
+<span class="Delimiter">]</span>
+
+recipe init-fake-keyboard <span class="Delimiter">[</span>
+  default-space:address:array:location<span class="Special"> &lt;- </span>new location:type, 30:literal
+  result:address:keyboard<span class="Special"> &lt;- </span>new keyboard:type
+  buf:address:address:array:character<span class="Special"> &lt;- </span>get-address result:address:keyboard/deref data:offset
+<span class="CommentedCode">#?   $start-tracing #? 1</span>
+  buf:address:address:array:character/deref<span class="Special"> &lt;- </span>next-ingredient
+<span class="CommentedCode">#?   $stop-tracing #? 1</span>
+  idx:address:integer<span class="Special"> &lt;- </span>get-address result:address:keyboard/deref index:offset
+  idx:address:integer/deref<span class="Special"> &lt;- </span>copy 0:literal
+  <span class="Identifier">reply</span> result:address:keyboard
+<span class="Delimiter">]</span>
+
+recipe read-key <span class="Delimiter">[</span>
+  default-space:address:array:location<span class="Special"> &lt;- </span>new location:type, 30:literal
+  x:address:keyboard<span class="Special"> &lt;- </span>next-ingredient
+  <span class="Delimiter">{</span>
+    <span class="Identifier">break-unless</span> x:address:keyboard
+    idx:address:integer<span class="Special"> &lt;- </span>get-address x:address:keyboard/deref, index:offset
+    buf:address:array:character<span class="Special"> &lt;- </span>get x:address:keyboard/deref, data:offset
+    max:integer<span class="Special"> &lt;- </span>length buf:address:array:character/deref
+    <span class="Delimiter">{</span>
+      done?:boolean<span class="Special"> &lt;- </span>greater-or-equal idx:address:integer/deref, max:integer
+      <span class="Identifier">break-unless</span> done?:boolean
+      <span class="Identifier">reply</span> 0:literal, 0:literal/done, x:address:keyboard/same-as-ingredient:0
+    <span class="Delimiter">}</span>
+    c:character<span class="Special"> &lt;- </span>index buf:address:array:character/deref, idx:address:integer/deref
+    idx:address:integer/deref<span class="Special"> &lt;- </span>add idx:address:integer/deref, 1:literal
+    <span class="Identifier">reply</span> c:character, 1:literal/found, x:address:keyboard/same-as-ingredient:0
+  <span class="Delimiter">}</span>
+  c:character, found?:boolean<span class="Special"> &lt;- </span>read-key-from-keyboard
+  <span class="Identifier">reply</span> c:character, found?:boolean, x:address:keyboard/same-as-ingredient:0
+<span class="Delimiter">]</span>
+
+recipe wait-for-key <span class="Delimiter">[</span>
+  default-space:address:array:location<span class="Special"> &lt;- </span>new location:type, 30:literal
+  x:address:keyboard<span class="Special"> &lt;- </span>next-ingredient
+  <span class="Delimiter">{</span>
+    <span class="Identifier">break-unless</span> x:address:keyboard
+    <span class="Comment"># on fake keyboards 'wait-for-key' behaves just like 'read-key'</span>
+    c:character, x:address:keyboard<span class="Special"> &lt;- </span>read-key x:address:keyboard
+    <span class="Identifier">reply</span> c:character, x:address:keyboard/same-as-ingredient:0
+  <span class="Delimiter">}</span>
+  c:character<span class="Special"> &lt;- </span>wait-for-key-from-keyboard
+  <span class="Identifier">reply</span> c:character, x:address:keyboard/same-as-ingredient:0
+<span class="Delimiter">]</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->