1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
<!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</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; }
.Delimiter { color: #c000c0; }
.Comment { color: #8080ff; }
.Constant { color: #008080; }
.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="Constant">[ # can't think of another word like screen/display, so real and fake keyboards use the same name</span>
<span class="Constant"> index:number</span>
<span class="Constant"> data:address:array:character</span>
<span class="Constant">]</span>
recipe init-fake-keyboard [
default-space:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
result:address:keyboard<span class="Special"> <- </span>new keyboard:type
buf:address:address:array:character<span class="Special"> <- </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"> <- </span>next-ingredient
<span class="CommentedCode">#? $stop-tracing #? 1</span>
idx:address:number<span class="Special"> <- </span>get-address result:address:keyboard/deref, index:offset
idx:address:number/deref<span class="Special"> <- </span>copy <span class="Constant">0:literal</span>
<span class="Identifier">reply</span> result:address:keyboard
]
recipe read-key [
default-space:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
x:address:keyboard<span class="Special"> <- </span>next-ingredient
<span class="Delimiter">{</span>
<span class="Identifier">break-unless</span> x:address:keyboard
idx:address:number<span class="Special"> <- </span>get-address x:address:keyboard/deref, index:offset
buf:address:array:character<span class="Special"> <- </span>get x:address:keyboard/deref, data:offset
max:number<span class="Special"> <- </span>length buf:address:array:character/deref
<span class="Delimiter">{</span>
done?:boolean<span class="Special"> <- </span>greater-or-equal idx:address:number/deref, max:number
<span class="Identifier">break-unless</span> done?:boolean
<span class="Identifier">reply</span> <span class="Constant">0:literal/eof</span>, <span class="Constant">1:literal/found</span>, x:address:keyboard/same-as-ingredient:0
<span class="Delimiter">}</span>
c:character<span class="Special"> <- </span>index buf:address:array:character/deref, idx:address:number/deref
idx:address:number/deref<span class="Special"> <- </span>add idx:address:number/deref, <span class="Constant">1:literal</span>
<span class="Identifier">reply</span> c:character, <span class="Constant">1:literal/found</span>, x:address:keyboard/same-as-ingredient:0
<span class="Delimiter">}</span>
<span class="Comment"># real keyboard input is infrequent; avoid polling it too much</span>
switch
c:character, found?:boolean<span class="Special"> <- </span>read-key-from-keyboard
<span class="Identifier">reply</span> c:character, found?:boolean, x:address:keyboard/same-as-ingredient:0
]
recipe wait-for-key [
default-space:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
x:address:keyboard<span class="Special"> <- </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"> <- </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"> <- </span>wait-for-key-from-keyboard
<span class="Identifier">reply</span> c:character, x:address:keyboard/same-as-ingredient:0
]
recipe send-keys-to-channel [
default-space:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
keyboard:address<span class="Special"> <- </span>next-ingredient
chan:address:channel<span class="Special"> <- </span>next-ingredient
screen:address<span class="Special"> <- </span>next-ingredient
<span class="Delimiter">{</span>
c:character, found?:boolean<span class="Special"> <- </span>read-key keyboard:address
<span class="Identifier">loop-unless</span> found?:boolean
<span class="CommentedCode">#? print-integer screen:address, c:character #? 1</span>
print-character screen:address, c:character
chan:address:channel<span class="Special"> <- </span>write chan:address:channel, c:character
<span class="Comment"># todo: eof</span>
<span class="Identifier">loop</span>
<span class="Delimiter">}</span>
]
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|