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
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
|
# interactive prompt for mu
recipe main [
default-space:address:array:location <- new location:type, 30:literal
switch-to-display
msg:address:array:character <- new [ready! type in an instruction, then hit enter. ctrl-d exits.
]
0:literal/real-screen <- print-string 0:literal/real-screen, msg:address:array:character
{
inst:address:array:character, 0:literal/real-keyboard, 0:literal/real-screen <- read-instruction 0:literal/real-keyboard, 0:literal/real-screen
break-unless inst:address:array:character
0:literal/real-screen <- print-string 0:literal/real-screen, inst:address:array:character
loop
}
return-to-console
]
# basic keyboard input; just text and enter
scenario read-instruction1 [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [x <- copy y
]
run [
1:address:array:character <- read-instruction keyboard:address, screen:address
2:address:array:character <- new [=> ]
print-string screen:address, 2:address:array:character
print-string screen:address, 1:address:array:character
]
screen-should-contain [
.x <- copy y .
.=> x <- copy y .
. .
]
screen-should-contain-in-color 7:literal/white, [
.x <- copy y .
.=> x <- copy y .
. .
]
]
recipe read-instruction [
default-space:address:array:location <- new location:type, 60:literal
k:address:keyboard <- next-ingredient
x:address:screen <- next-ingredient
result:address:buffer <- init-buffer 10:literal # string to maybe add to
{
+next-character
# read character
c:character, k:address:keyboard <- wait-for-key k:address:keyboard
# quit?
{
ctrl-d?:boolean <- equal c:character, 4:literal/ctrl-d/eof
break-unless ctrl-d?:boolean
reply 0:literal, k:address:keyboard/same-as-ingredient:0, x:address:screen/same-as-ingredient:1
}
{
null?:boolean <- equal c:character, 0:literal/null
break-unless null?:boolean
reply 0:literal, k:address:keyboard/same-as-ingredient:0, x:address:screen/same-as-ingredient:1
}
# comment?
{
comment?:boolean <- equal c:character, 35:literal/hash
break-unless comment?:boolean
print-character x:address:screen, c:character, 4:literal/blue
result:address:buffer <- buffer-append result:address:buffer, c:character
result:address:buffer, k:address:keyboard, x:address:screen <- slurp-comment result:address:buffer, k:address:keyboard, x:address:screen
# continue appending to this instruction, whether comment ended or was backspaced out of
loop +next-character:label
}
# string
{
string?:boolean <- equal c:character, 91:literal/open-bracket
break-unless string?:boolean
print-character x:address:screen, c:character, 6:literal/cyan
result:address:buffer <- buffer-append result:address:buffer, c:character
result:address:buffer, _, k:address:keyboard, x:address:screen <- slurp-string result:address:buffer, k:address:keyboard, x:address:screen
loop +next-character:label
}
# print
print-character x:address:screen, c:character # default color
# append
result:address:buffer <- buffer-append result:address:buffer, c:character
# done with this instruction?
done?:boolean <- equal c:character, 10:literal/newline
break-if done?:boolean
loop
}
result2:address:array:character <- buffer-to-array result:address:buffer
reply result2:address:array:character, k:address:keyboard/same-as-ingredient:0, x:address:screen/same-as-ingredient:1
]
# Simpler version of read-instruction that prints in the comment color and
# doesn't handle comments or strings. Tracks an extra count in case we
# backspace out of it
recipe slurp-comment [
default-space:address:array:location <- new location:type, 60:literal
result:address:buffer <- next-ingredient
k:address:keyboard <- next-ingredient
x:address:screen <- next-ingredient
# use this to track when backspace should reset color
characters-slurped:number <- copy 1:literal # for the initial '#' that's already appended to result
{
+next-character
# read character
c:character, k:address:keyboard <- wait-for-key k:address:keyboard
# quit?
{
ctrl-d?:boolean <- equal c:character, 4:literal/ctrl-d/eof
break-unless ctrl-d?:boolean
reply 0:literal, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
}
{
null?:boolean <- equal c:character, 0:literal/null
break-unless null?:boolean
reply 0:literal, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
}
# print
print-character x:address:screen, c:character, 4:literal/blue
# append
result:address:buffer <- buffer-append result:address:buffer, c:character
# backspace? decrement
{
backspace?:boolean <- equal c:character, 8:literal/backspace
break-unless backspace?:boolean
characters-slurped:number <- subtract characters-slurped:number, 1:literal
{
reset-color?:boolean <- lesser-or-equal characters-slurped:number, 0:literal
break-unless reset-color?:boolean
reply result:address:buffer, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
}
loop +next-character:label
}
# otherwise increment
characters-slurped:number <- add characters-slurped:number, 1:literal
# done with this instruction?
done?:boolean <- equal c:character, 10:literal/newline
break-if done?:boolean
loop
}
reply result:address:buffer, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
]
# Version of read-instruction that prints in the string color and doesn't
# handle comments. Does handle nested strings. Tracks an extra count in case
# we backspace out of it, which it needs to return because recursion.
recipe slurp-string [
default-space:address:array:location <- new location:type, 60:literal
result:address:buffer <- next-ingredient
k:address:keyboard <- next-ingredient
x:address:screen <- next-ingredient
# use this to track when backspace should reset color
characters-slurped:number <- copy 1:literal # for the initial '[' that's already appended to result
{
+next-character
# read character
c:character, k:address:keyboard <- wait-for-key k:address:keyboard
# quit?
{
ctrl-d?:boolean <- equal c:character, 4:literal/ctrl-d/eof
break-unless ctrl-d?:boolean
reply 0:literal, 0:literal, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
}
{
null?:boolean <- equal c:character, 0:literal/null
break-unless null?:boolean
reply 0:literal, 0:literal, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
}
# string
{
string?:boolean <- equal c:character, 91:literal/open-bracket
break-unless string?:boolean
print-character x:address:screen, c:character, 6:literal/cyan
result:address:buffer <- buffer-append result:address:buffer, c:character
result:address:buffer, tmp:number, k:address:keyboard, x:address:screen <- slurp-string result:address:buffer, k:address:keyboard, x:address:screen
loop +next-character:label
}
# print
print-character x:address:screen, c:character, 6:literal/cyan
# append
result:address:buffer <- buffer-append result:address:buffer, c:character
# backspace? decrement
{
backspace?:boolean <- equal c:character, 8:literal/backspace
break-unless backspace?:boolean
characters-slurped:number <- subtract characters-slurped:number, 1:literal
{
reset-color?:boolean <- lesser-or-equal characters-slurped:number, 0:literal
break-unless reset-color?:boolean
reply result:address:buffer/same-as-ingredient:0, 0:literal, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
}
loop +next-character:label
}
# otherwise increment
characters-slurped:number <- add characters-slurped:number, 1:literal
# done with this instruction?
done?:boolean <- equal c:character, 93:literal/close-bracket
break-if done?:boolean
loop
}
reply result:address:buffer/same-as-ingredient:0, characters-slurped:number, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
]
scenario read-instruction-color-comment [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [# comment
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color 4:literal/blue, [
.# comment .
. .
]
screen-should-contain-in-color 7:literal/white, [
. .
. .
]
]
scenario read-instruction-cancel-comment-on-backspace [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [#a<<z
]
# setup: replace '<'s with backspace key since we can't represent backspace in strings
run [
buf:address:array:character <- get keyboard:address:keyboard/deref, data:offset
first:address:character <- index-address buf:address:array:character/deref, 2:literal
first:address:character/deref <- copy 8:literal/backspace
second:address:character <- index-address buf:address:array:character/deref, 3:literal
second:address:character/deref <- copy 8:literal/backspace
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color 4:literal/blue, [
. .
. .
]
screen-should-contain-in-color 7:literal/white, [
.z .
. .
]
]
scenario read-instruction-cancel-comment-on-backspace2 [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [#ab<<<z
]
# setup: replace '<'s with backspace key since we can't represent backspace in strings
run [
buf:address:array:character <- get keyboard:address:keyboard/deref, data:offset
first:address:character <- index-address buf:address:array:character/deref, 3:literal
first:address:character/deref <- copy 8:literal/backspace
second:address:character <- index-address buf:address:array:character/deref, 4:literal
second:address:character/deref <- copy 8:literal/backspace
third:address:character <- index-address buf:address:array:character/deref, 5:literal
third:address:character/deref <- copy 8:literal/backspace
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color 4:literal/blue, [
. .
. .
]
screen-should-contain-in-color 7:literal/white, [
.z .
. .
]
]
scenario read-instruction-cancel-comment-on-backspace3 [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [#a<z
]
# setup: replace '<'s with backspace key since we can't represent backspace in strings
run [
buf:address:array:character <- get keyboard:address:keyboard/deref, data:offset
first:address:character <- index-address buf:address:array:character/deref, 2:literal
first:address:character/deref <- copy 8:literal/backspace
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color 4:literal/blue, [
.#z .
. .
]
screen-should-contain-in-color 7:literal/white, [
. .
. .
]
]
scenario read-instruction-color-string [
#? $start-tracing #? 1
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [abc [string]
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
.abc [string] .
. .
]
screen-should-contain-in-color 6:literal/cyan, [
. [string] .
. .
]
screen-should-contain-in-color 7:literal/white, [
.abc .
. .
]
]
scenario read-instruction-color-string-multiline [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [abc [line1
line2]
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
.abc [line1 .
.line2] .
. .
]
screen-should-contain-in-color 6:literal/cyan, [
. [line1 .
.line2] .
. .
]
screen-should-contain-in-color 7:literal/white, [
.abc .
. .
. .
]
]
scenario read-instruction-color-string-and-comment [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [abc [string] # comment
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
.abc [string] # comment .
. .
]
screen-should-contain-in-color 4:literal/blue, [
. # comment .
. .
]
screen-should-contain-in-color 6:literal/cyan, [
. [string] .
. .
]
screen-should-contain-in-color 7:literal/white, [
.abc .
. .
]
]
scenario read-instruction-ignore-comment-inside-string [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [abc [string # not a comment]
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
.abc [string # not a comment] .
. .
]
screen-should-contain-in-color 6:literal/cyan, [
. [string # not a comment] .
. .
]
screen-should-contain-in-color 7:literal/white, [
.abc .
. .
]
screen-should-contain-in-color 4:literal/blue, [
. .
. .
]
]
scenario read-instruction-ignore-string-inside-comment [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [abc # comment [not a string]
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
.abc # comment [not a string] .
. .
]
screen-should-contain-in-color 6:literal/cyan, [
. .
. .
]
screen-should-contain-in-color 7:literal/white, [
.abc .
. .
]
screen-should-contain-in-color 4:literal/blue, [
. # comment [not a string] .
. .
]
]
scenario read-instruction-color-string-inside-string [
assume-screen 30:literal/width, 5:literal/height
assume-keyboard [abc [string [inner string]]
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
.abc [string [inner string]] .
. .
]
screen-should-contain-in-color 6:literal/cyan, [
. [string [inner string]] .
. .
]
screen-should-contain-in-color 7:literal/white, [
.abc .
. .
]
]
|