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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
|
<!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>Mu - 072scenario_screen.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v1">
<meta name="syntax" content="cpp">
<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: #eeeeee; background-color: #080808; }
body { font-family: monospace; color: #eeeeee; background-color: #080808; }
* { font-size: 1.05em; }
.traceContains { color: #008000; }
.traceAbsent { color: #c00000; }
.Constant { color: #00a0a0; }
.cSpecial { color: #008000; }
.Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
.Comment { color: #9090ff; }
.Delimiter { color: #a04060; }
.Special { color: #ff6060; }
.Identifier { color: #804000; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment">//: Clean syntax to manipulate and check the screen in scenarios.</span>
<span class="Comment">//: Instructions 'assume-screen' and 'screen-should-contain' implicitly create</span>
<span class="Comment">//: a variable called 'screen' that is accessible inside other 'run'</span>
<span class="Comment">//: instructions in the scenario. 'screen-should-contain' can check unicode</span>
<span class="Comment">//: characters in the fake screen</span>
<span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span class="Delimiter">:(scenario screen_in_scenario)</span>
scenario screen-in-scenario [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">97</span> <span class="Comment"># 'a'</span>
]
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>a <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="Delimiter">:(scenario screen_in_scenario_unicode)</span>
scenario screen-in-scenario-unicode-color [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">955</span>/greek-small-lambda<span class="Delimiter">,</span> <span class="Constant">1</span>/red
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">97</span>/a
]
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>λa <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="Delimiter">:(scenario screen_in_scenario_color)</span>
<span class="Comment"># screen-should-contain can check unicode characters in the fake screen</span>
scenario screen-in-scenario-color [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">955</span>/greek-small-lambda<span class="Delimiter">,</span> <span class="Constant">1</span>/red
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">97</span>/a<span class="Delimiter">,</span> <span class="Constant">7</span>/white
]
<span class="Comment"># screen-should-contain shows everything</span>
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>λa <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
<span class="Comment"># screen-should-contain-in-color filters out everything except the given</span>
<span class="Comment"># color, all you see is the 'a' in white.</span>
screen-should-contain-in-color <span class="Constant">7</span>/white<span class="Delimiter">,</span> [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span> a <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
<span class="Comment"># ..and the λ in red.</span>
screen-should-contain-in-color <span class="Constant">1</span>/red<span class="Delimiter">,</span> [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>λ <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="Delimiter">:(scenario screen_in_scenario_error)</span>
<span class="Special">% Scenario_testing_scenario = true;</span>
<span class="Special">% Hide_warnings = true;</span>
scenario screen-in-scenario-error [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">97</span> <span class="Comment"># 'a'</span>
]
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>b <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="traceContains">+warn: expected screen location (0, 0) to contain 98 ('b') instead of 97 ('a')</span>
<span class="Delimiter">:(scenario screen_in_scenario_color_error)</span>
<span class="Special">% Scenario_testing_scenario = true;</span>
<span class="Special">% Hide_warnings = true;</span>
<span class="Comment"># screen-should-contain can check unicode characters in the fake screen</span>
scenario screen-in-scenario-color [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
<span class="Normal">screen</span>:address<span class="Special"> <- </span>print-character screen:address<span class="Delimiter">,</span> <span class="Constant">97</span>/a<span class="Delimiter">,</span> <span class="Constant">1</span>/red
]
screen-should-contain-in-color <span class="Constant">2</span>/green<span class="Delimiter">,</span> [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>a <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="traceContains">+warn: expected screen location (0, 0) to be in color 2 instead of 1</span>
<span class="Comment">//: allow naming just for 'screen'</span>
<span class="Delimiter">:(before "End is_special_name Cases")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">"screen"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">:(scenarios run)</span>
<span class="Delimiter">:(scenario convert_names_does_not_warn_when_mixing_special_names_and_numeric_locations)</span>
<span class="Special">% Scenario_testing_scenario = true;</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
<span class="Normal">screen</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>:number
]
<span class="traceAbsent">-warn: mixing variable names and numeric addresses in main</span>
$warn: <span class="Constant">0</span>
<span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">// Scenarios may not define default-space, so they should fit within the</span>
<span class="Comment">// initial area of memory reserved for tests. We'll put the predefined</span>
<span class="Comment">// variables available to them at the end of that region.</span>
<span class="Normal">const</span> <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> Max_variables_in_scenarios = Reserved_for_tests-<span class="Constant">100</span><span class="Delimiter">;</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> Next_predefined_global_for_scenarios = Max_variables_in_scenarios<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Setup")</span>
assert<span class="Delimiter">(</span>Next_predefined_global_for_scenarios < Reserved_for_tests<span class="Delimiter">);</span>
<span class="Delimiter">:(after "transform_all()" following "case RUN:")</span>
<span class="Comment">// There's a restriction on the number of variables 'run' can use, so that</span>
<span class="Comment">// it can avoid colliding with the dynamic allocator in case it doesn't</span>
<span class="Comment">// initialize a default-space.</span>
assert<span class="Delimiter">(</span>Name[tmp_recipe<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>][<span class="Constant">""</span>] < Max_variables_in_scenarios<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">// Scenario Globals.</span>
<span class="Normal">const</span> <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> SCREEN = Next_predefined_global_for_scenarios++<span class="Delimiter">;</span>
<span class="Comment">// End Scenario Globals.</span>
<span class="Delimiter">:(before "End Special Scenario Variable Names(r)")</span>
Name[r][<span class="Constant">"screen"</span>] = SCREEN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Rewrite Instruction(curr)")</span>
<span class="Comment">// rewrite `assume-screen width, height` to</span>
<span class="Comment">// `screen:address <- new-fake-screen width, height`</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"assume-screen"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
curr<span class="Delimiter">.</span>operation = Recipe_ordinal[<span class="Constant">"new-fake-screen"</span>]<span class="Delimiter">;</span>
curr<span class="Delimiter">.</span>name = <span class="Constant">"new-fake-screen"</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>operation<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span><span class="Constant">"screen:address"</span><span class="Delimiter">));</span>
curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>set_value<span class="Delimiter">(</span>SCREEN<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">//: screen-should-contain is a regular instruction</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
SCREEN_SHOULD_CONTAIN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"screen-should-contain"</span>] = SCREEN_SHOULD_CONTAIN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
check_screen<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">,</span> -<span class="Constant">1</span><span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"screen-should-contain-in-color"</span>] = SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)));</span>
check_screen<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name<span class="Delimiter">,</span> ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// scan an array of characters in a unicode-aware, bounds-checked manner</span>
<span class="Normal">struct</span> raw_string_stream <span class="Delimiter">{</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> index<span class="Delimiter">;</span>
<span class="Normal">const</span> <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> max<span class="Delimiter">;</span>
<span class="Normal">const</span> <span class="Normal">char</span>* buf<span class="Delimiter">;</span>
raw_string_stream<span class="Delimiter">(</span><span class="Normal">const</span> string&<span class="Delimiter">);</span>
<span class="Normal">uint32_t</span> get<span class="Delimiter">();</span> <span class="Comment">// unicode codepoint</span>
<span class="Normal">uint32_t</span> peek<span class="Delimiter">();</span> <span class="Comment">// unicode codepoint</span>
<span class="Normal">bool</span> at_end<span class="Delimiter">()</span> <span class="Normal">const</span><span class="Delimiter">;</span>
<span class="Normal">void</span> skip_whitespace_and_comments<span class="Delimiter">();</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> check_screen<span class="Delimiter">(</span><span class="Normal">const</span> string& expected_contents<span class="Delimiter">,</span> <span class="Normal">const</span> <span class="Normal">int</span> color<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>default_space<span class="Delimiter">);</span> <span class="Comment">// not supported</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_location = Memory[SCREEN]<span class="Delimiter">;</span>
<span class="Normal">int</span> data_offset = find_element_name<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"screen"</span>]<span class="Delimiter">,</span> <span class="Constant">"data"</span><span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>data_offset >= <span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_data_location = screen_location+data_offset<span class="Delimiter">;</span> <span class="Comment">// type: address:array:character</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_data_start = Memory[screen_data_location]<span class="Delimiter">;</span> <span class="Comment">// type: array:character</span>
<span class="Normal">int</span> width_offset = find_element_name<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"screen"</span>]<span class="Delimiter">,</span> <span class="Constant">"num-columns"</span><span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_width = Memory[screen_location+width_offset]<span class="Delimiter">;</span>
<span class="Normal">int</span> height_offset = find_element_name<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"screen"</span>]<span class="Delimiter">,</span> <span class="Constant">"num-rows"</span><span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_height = Memory[screen_location+height_offset]<span class="Delimiter">;</span>
raw_string_stream cursor<span class="Delimiter">(</span>expected_contents<span class="Delimiter">);</span>
<span class="Comment">// todo: too-long expected_contents should fail</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> addr = screen_data_start+<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// skip length</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> row = <span class="Constant">0</span><span class="Delimiter">;</span> row < screen_height<span class="Delimiter">;</span> ++row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cursor<span class="Delimiter">.</span>skip_whitespace_and_comments<span class="Delimiter">();</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>at_end<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>get<span class="Delimiter">()</span> == <span class="Constant">'.'</span><span class="Delimiter">);</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> column = <span class="Constant">0</span><span class="Delimiter">;</span> column < screen_width<span class="Delimiter">;</span> ++column<span class="Delimiter">,</span> addr+= <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">const</span> <span class="Normal">int</span> cell_color_offset = <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Normal">uint32_t</span> curr = cursor<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Memory[addr] == <span class="Constant">0</span> && isspace<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr == <span class="Constant">' '</span> && color != -<span class="Constant">1</span> && color != Memory[addr+cell_color_offset]<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// filter out other colors</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Memory[addr] != <span class="Constant">0</span> && Memory[addr] == curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>color == -<span class="Constant">1</span> || color == Memory[addr+cell_color_offset]<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Comment">// contents match but color is off</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario && !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// genuine test in a mu file</span>
raise << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << Current_scenario<span class="Delimiter">-></span>name << <span class="Constant">": expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">", address "</span> << addr << <span class="Constant">", value "</span> << Memory[addr] << <span class="Constant">") to be in color "</span> << color << <span class="Constant">" instead of "</span> << Memory[addr+cell_color_offset] << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Comment">// just testing check_screen</span>
raise << <span class="Constant">"expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">") to be in color "</span> << color << <span class="Constant">" instead of "</span> << Memory[addr+cell_color_offset] << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
++Num_failures<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// really a mismatch</span>
<span class="Comment">// can't print multi-byte unicode characters in warnings just yet. not very useful for debugging anyway.</span>
<span class="Normal">char</span> expected_pretty[<span class="Constant">10</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr < <span class="Constant">256</span> && !iscntrl<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span class="Comment">// " ('<curr>')"</span>
expected_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">3</span>] = <span class="Normal">static_cast</span><<span class="Normal">unsigned</span> <span class="Normal">char</span>><span class="Delimiter">(</span>curr<span class="Delimiter">),</span> expected_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">char</span> actual_pretty[<span class="Constant">10</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Memory[addr] < <span class="Constant">256</span> && !iscntrl<span class="Delimiter">(</span>Memory[addr]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span class="Comment">// " ('<curr>')"</span>
actual_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">3</span>] = <span class="Normal">static_cast</span><<span class="Normal">unsigned</span> <span class="Normal">char</span>><span class="Delimiter">(</span>Memory[addr]<span class="Delimiter">),</span> actual_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario && !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// genuine test in a mu file</span>
raise << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << Current_scenario<span class="Delimiter">-></span>name << <span class="Constant">": expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">") to contain "</span> << curr << expected_pretty << <span class="Constant">" instead of "</span> << Memory[addr] << actual_pretty << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
dump_screen<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Comment">// just testing check_screen</span>
raise << <span class="Constant">"expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">") to contain "</span> << curr << expected_pretty << <span class="Constant">" instead of "</span> << Memory[addr] << actual_pretty << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
++Num_failures<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
assert<span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>get<span class="Delimiter">()</span> == <span class="Constant">'.'</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
cursor<span class="Delimiter">.</span>skip_whitespace_and_comments<span class="Delimiter">();</span>
assert<span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>at_end<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
raw_string_stream::raw_string_stream<span class="Delimiter">(</span><span class="Normal">const</span> string& backing<span class="Delimiter">)</span> :index<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> max<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>backing<span class="Delimiter">)),</span> buf<span class="Delimiter">(</span>backing<span class="Delimiter">.</span>c_str<span class="Delimiter">())</span> <span class="Delimiter">{}</span>
<span class="Normal">bool</span> raw_string_stream::at_end<span class="Delimiter">()</span> <span class="Normal">const</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>index >= max<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>tb_utf8_char_length<span class="Delimiter">(</span>buf[index]<span class="Delimiter">)</span> > max-index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"unicode string seems corrupted at index "</span><< index << <span class="Constant">" character "</span> << <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span>buf[index]<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">uint32_t</span> raw_string_stream::get<span class="Delimiter">()</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>index < max<span class="Delimiter">);</span> <span class="Comment">// caller must check bounds before calling 'get'</span>
<span class="Normal">uint32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">int</span> length = tb_utf8_char_to_unicode<span class="Delimiter">(</span>&result<span class="Delimiter">,</span> &buf[index]<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>length != TB_EOF<span class="Delimiter">);</span>
index += length<span class="Delimiter">;</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">uint32_t</span> raw_string_stream::peek<span class="Delimiter">()</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>index < max<span class="Delimiter">);</span> <span class="Comment">// caller must check bounds before calling 'get'</span>
<span class="Normal">uint32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">int</span> length = tb_utf8_char_to_unicode<span class="Delimiter">(</span>&result<span class="Delimiter">,</span> &buf[index]<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>length != TB_EOF<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> raw_string_stream::skip_whitespace_and_comments<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>!at_end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>peek<span class="Delimiter">()))</span> get<span class="Delimiter">();</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>peek<span class="Delimiter">()</span> == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// skip comment</span>
get<span class="Delimiter">();</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> get<span class="Delimiter">();</span> <span class="Comment">// implicitly also handles CRLF</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
_DUMP_SCREEN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"$dump-screen"</span>] = _DUMP_SCREEN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> _DUMP_SCREEN: <span class="Delimiter">{</span>
dump_screen<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> dump_screen<span class="Delimiter">()</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>default_space<span class="Delimiter">);</span> <span class="Comment">// not supported</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_location = Memory[SCREEN]<span class="Delimiter">;</span>
<span class="Normal">int</span> width_offset = find_element_name<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"screen"</span>]<span class="Delimiter">,</span> <span class="Constant">"num-columns"</span><span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_width = Memory[screen_location+width_offset]<span class="Delimiter">;</span>
<span class="Normal">int</span> height_offset = find_element_name<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"screen"</span>]<span class="Delimiter">,</span> <span class="Constant">"num-rows"</span><span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_height = Memory[screen_location+height_offset]<span class="Delimiter">;</span>
<span class="Normal">int</span> data_offset = find_element_name<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"screen"</span>]<span class="Delimiter">,</span> <span class="Constant">"data"</span><span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>data_offset >= <span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_data_location = screen_location+data_offset<span class="Delimiter">;</span> <span class="Comment">// type: address:array:character</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> screen_data_start = Memory[screen_data_location]<span class="Delimiter">;</span> <span class="Comment">// type: array:character</span>
assert<span class="Delimiter">(</span>Memory[screen_data_start] == screen_width*screen_height<span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> curr = screen_data_start+<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// skip length</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> row = <span class="Constant">0</span><span class="Delimiter">;</span> row < screen_height<span class="Delimiter">;</span> ++row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cerr << <span class="Constant">'.'</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> col = <span class="Constant">0</span><span class="Delimiter">;</span> col < screen_width<span class="Delimiter">;</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Memory[curr]<span class="Delimiter">)</span>
cerr << to_unicode<span class="Delimiter">(</span>Memory[curr]<span class="Delimiter">);</span>
<span class="Normal">else</span>
cerr << <span class="Constant">' '</span><span class="Delimiter">;</span>
curr += <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
cerr << <span class="Constant">".</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|