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<span class="Comment"># interactive prompt for mu</span>
<span class="muRecipe">recipe</span> main [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
switch-to-display
msg:address:array:character<span class="Special"> <- </span>new <span class="Constant">[ready! type in an instruction, then hit enter. ctrl-d exits.</span>
<span class="Constant">]</span>
<span class="Constant">0:literal/real-screen</span><span class="Special"> <- </span>print-string <span class="Constant">0:literal/real-screen</span>, msg:address:array:character, <span class="Constant">245:literal/grey</span>
<span class="Constant">0:literal/real-keyboard</span>, <span class="Constant">0:literal/real-screen</span><span class="Special"> <- </span>color-session <span class="Constant">0:literal/real-keyboard</span>, <span class="Constant">0:literal/real-screen</span>
<span class="CommentedCode">#? wait-for-key-from-keyboard #? 1</span>
return-to-console
]
<span class="muRecipe">recipe</span> color-session [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
keyboard:address<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
screen:address<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
<span class="Delimiter">{</span>
inst:address:array:character, keyboard:address, screen:address<span class="Special"> <- </span>read-instruction keyboard:address, screen:address
<span class="muControl">break-unless</span> inst:address:array:character
run-interactive inst:address:array:character
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
<span class="muControl">reply</span> keyboard:address/same-as-ingredient:0, screen:address/same-as-ingredient:1
]
<span class="Comment"># basic keyboard input; just text and enter</span>
<span class="muScenario">scenario</span> read-instruction1 [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[x <- copy y</span>
<span class="Constant">]</span>
run [
1:address:array:character<span class="Special"> <- </span>read-instruction keyboard:address, screen:address
2:address:array:character<span class="Special"> <- </span>new <span class="Constant">[=> ]</span>
print-string screen:address, 2:address:array:character
print-string screen:address, 1:address:array:character
]
screen-should-contain [
<span class="Constant"> .x <- copy y .</span>
<span class="Constant"> .=> x <- copy y .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .x copy y .</span>
<span class="Constant"> .=> x <- copy y .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">1:literal/red</span>, [
<span class="Constant"> . <- .</span>
<span class="Constant"> . .</span>
]
]
<span class="Comment"># Read characters as they're typed at the keyboard, print them to the screen,</span>
<span class="Comment"># accumulate them in a string, return the string at the end.</span>
<span class="Comment"># Most of the complexity is for the printing to screen, to highlight strings</span>
<span class="Comment"># and comments specially. Especially in the presence of backspacing.</span>
<span class="muRecipe">recipe</span> read-instruction [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">60:literal</span>
k:address:keyboard<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
x:address:screen<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
result:address:buffer<span class="Special"> <- </span>init-buffer <span class="Constant">10:literal</span> <span class="Comment"># string to maybe add to</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[read-instruction]</span>
<span class="Comment"># start state machine by calling slurp-regular-characters, which will return</span>
<span class="Comment"># by calling the complete continuation</span>
complete:continuation<span class="Special"> <- </span><span class="muControl">current-continuation</span>
<span class="Comment"># If result is not empty, we've run slurp-regular-characters below, called</span>
<span class="Comment"># the continuation and so bounced back here. We're done.</span>
len:number<span class="Special"> <- </span>get result:address:buffer/deref, length:offset
completed?:boolean<span class="Special"> <- </span>greater-than len:number, <span class="Constant">0:literal</span>
<span class="muControl">jump-if</span> completed?:boolean, <span class="Constant">+completed:label</span>
<span class="Comment"># Otherwise we're just getting started.</span>
result:address:buffer, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-regular-characters result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation
<span class="CommentedCode">#? $print [aaa: ], result:address:buffer #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
trace <span class="Constant">[error]</span>, <span class="Constant">[slurp-regular-characters should never return normally]</span>
<span class="Constant"> +completed</span>
result2:address:array:character<span class="Special"> <- </span>buffer-to-array result:address:buffer
<span class="CommentedCode">#? $print [bbb: ], result2:address:array:character #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[exiting read-instruction]</span>
<span class="muControl">reply</span> result2:address:array:character, k:address:keyboard/same-as-ingredient:0, x:address:screen/same-as-ingredient:1
]
<span class="Comment"># read characters from the keyboard, print them to the screen in *white*.</span>
<span class="Comment"># Transition to other routines for comments and strings.</span>
<span class="muRecipe">recipe</span> slurp-regular-characters [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
result:address:buffer<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
k:address:keyboard<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
x:address:screen<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
complete:continuation<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters]</span>
characters-slurped:number<span class="Special"> <- </span>copy <span class="Constant">0:literal</span>
<span class="CommentedCode">#? $run-depth #? 1</span>
<span class="Delimiter">{</span>
<span class="Constant"> +next-character</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters: next]</span>
<span class="CommentedCode">#? $print [a0 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
<span class="Comment"># read character</span>
c:character, k:address:keyboard<span class="Special"> <- </span>wait-for-key k:address:keyboard
<span class="CommentedCode">#? print-character x:address:screen, c:character #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
<span class="Comment"># quit?</span>
<span class="Delimiter">{</span>
<span class="CommentedCode">#? $print [aaa] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
ctrl-d?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">4:literal/ctrl-d/eof</span>
<span class="muControl">break-unless</span> ctrl-d?:boolean
<span class="CommentedCode">#? $print [ctrl-d] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters: ctrl-d]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Delimiter">{</span>
null?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">0:literal/null</span>
<span class="muControl">break-unless</span> null?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters: null]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Comment"># comment?</span>
<span class="Delimiter">{</span>
comment?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">35:literal/hash</span>
<span class="muControl">break-unless</span> comment?:boolean
print-character x:address:screen, c:character, <span class="Constant">4:literal/blue</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
result:address:buffer, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-comment result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation
<span class="Comment"># continue appending to this instruction, whether comment ended or was backspaced out of</span>
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="Comment"># string</span>
<span class="Delimiter">{</span>
string?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">91:literal/open-bracket</span>
<span class="muControl">break-unless</span> string?:boolean
print-character x:address:screen, c:character, <span class="Constant">6:literal/cyan</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
result:address:buffer, _, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-string result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="Comment"># assignment</span>
<span class="Delimiter">{</span>
assign?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">60:literal/less-than</span>
<span class="muControl">break-unless</span> assign?:boolean
print-character x:address:screen, c:character, <span class="Constant">1:literal/red</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[start of assignment: <]</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
result:address:buffer, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-assignment result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="Comment"># print</span>
print-character x:address:screen, c:character <span class="Comment"># default color</span>
<span class="Comment"># append</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
<span class="CommentedCode">#? $print [a1 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
<span class="Comment"># backspace? decrement and maybe return</span>
<span class="Delimiter">{</span>
<span class="CommentedCode">#? $print [a2 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
backspace?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">8:literal/backspace</span>
<span class="muControl">break-unless</span> backspace?:boolean
<span class="CommentedCode">#? $print [a3 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
characters-slurped:number<span class="Special"> <- </span>subtract characters-slurped:number, <span class="Constant">1:literal</span>
<span class="Delimiter">{</span>
<span class="CommentedCode">#? $print [a4 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
done?:boolean<span class="Special"> <- </span>lesser-or-equal characters-slurped:number, <span class="Constant">-1:literal</span>
<span class="muControl">break-unless</span> done?:boolean
<span class="CommentedCode">#? $print [a5 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters: too many backspaces; returning]</span>
<span class="CommentedCode">#? $print [a6 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
<span class="muControl">reply</span> result:address:buffer, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="CommentedCode">#? $print [a9 #? 1</span>
<span class="CommentedCode">#? ] #? 1</span>
<span class="CommentedCode">#? move-cursor-down-on-display #? 1</span>
<span class="Comment"># otherwise increment</span>
characters-slurped:number<span class="Special"> <- </span>add characters-slurped:number, <span class="Constant">1:literal</span>
<span class="Comment"># done with this instruction?</span>
done?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">10:literal/newline</span>
<span class="muControl">break-if</span> done?:boolean
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
<span class="Comment"># newline encountered; terminate all recursive calls</span>
<span class="CommentedCode">#? xx:address:array:character <- new [completing!] #? 1</span>
<span class="CommentedCode">#? print-string x:address:screen, xx:address:array:character #? 1</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters: newline encountered; unwinding stack]</span>
<span class="muControl">continue-from</span> complete:continuation
]
<span class="Comment"># read characters from keyboard, print them to screen in the comment color.</span>
<span class="Comment">#</span>
<span class="Comment"># Simpler version of slurp-regular-characters; doesn't handle comments or</span>
<span class="Comment"># strings. Tracks an extra count in case we backspace out of it</span>
<span class="muRecipe">recipe</span> slurp-comment [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
result:address:buffer<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
k:address:keyboard<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
x:address:screen<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
complete:continuation<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-comment]</span>
<span class="Comment"># use this to track when backspace should reset color</span>
characters-slurped:number<span class="Special"> <- </span>copy <span class="Constant">1:literal</span> <span class="Comment"># for the initial '#' that's already appended to result</span>
<span class="Delimiter">{</span>
<span class="Constant"> +next-character</span>
<span class="Comment"># read character</span>
c:character, k:address:keyboard<span class="Special"> <- </span>wait-for-key k:address:keyboard
<span class="Comment"># quit?</span>
<span class="Delimiter">{</span>
ctrl-d?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">4:literal/ctrl-d/eof</span>
<span class="muControl">break-unless</span> ctrl-d?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-comment: ctrl-d]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Delimiter">{</span>
null?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">0:literal/null</span>
<span class="muControl">break-unless</span> null?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-comment: null]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Comment"># print</span>
print-character x:address:screen, c:character, <span class="Constant">4:literal/blue</span>
<span class="Comment"># append</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
<span class="Comment"># backspace? decrement</span>
<span class="Delimiter">{</span>
backspace?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">8:literal/backspace</span>
<span class="muControl">break-unless</span> backspace?:boolean
characters-slurped:number<span class="Special"> <- </span>subtract characters-slurped:number, <span class="Constant">1:literal</span>
<span class="Delimiter">{</span>
reset-color?:boolean<span class="Special"> <- </span>lesser-or-equal characters-slurped:number, <span class="Constant">0:literal</span>
<span class="muControl">break-unless</span> reset-color?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-comment: too many backspaces; returning]</span>
<span class="muControl">reply</span> result:address:buffer, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="Comment"># otherwise increment</span>
characters-slurped:number<span class="Special"> <- </span>add characters-slurped:number, <span class="Constant">1:literal</span>
<span class="Comment"># done with this instruction?</span>
done?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">10:literal/newline</span>
<span class="muControl">break-if</span> done?:boolean
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-regular-characters: newline encountered; unwinding stack]</span>
<span class="muControl">continue-from</span> complete:continuation
]
<span class="Comment"># read characters from keyboard, print them to screen in the string color and</span>
<span class="Comment"># accumulate them into a buffer.</span>
<span class="Comment">#</span>
<span class="Comment"># Version of slurp-regular-characters that:</span>
<span class="Comment"># a) doesn't handle comments</span>
<span class="Comment"># b) handles nested strings using recursive calls to itself. Tracks an extra</span>
<span class="Comment"># count in case we backspace out of it.</span>
<span class="muRecipe">recipe</span> slurp-string [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
result:address:buffer<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
k:address:keyboard<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
x:address:screen<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
complete:continuation<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
nested-string?:boolean<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string]</span>
<span class="Comment"># use this to track when backspace should reset color</span>
characters-slurped:number<span class="Special"> <- </span>copy <span class="Constant">1:literal</span> <span class="Comment"># for the initial '[' that's already appended to result</span>
<span class="Delimiter">{</span>
<span class="Constant"> +next-character</span>
<span class="Comment"># read character</span>
c:character, k:address:keyboard<span class="Special"> <- </span>wait-for-key k:address:keyboard
<span class="Comment"># quit?</span>
<span class="Delimiter">{</span>
ctrl-d?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">4:literal/ctrl-d/eof</span>
<span class="muControl">break-unless</span> ctrl-d?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string: ctrl-d]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Delimiter">{</span>
null?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">0:literal/null</span>
<span class="muControl">break-unless</span> null?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string: null]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Comment"># string</span>
<span class="Delimiter">{</span>
string?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">91:literal/open-bracket</span>
<span class="muControl">break-unless</span> string?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string: open-bracket encountered; recursing]</span>
print-character x:address:screen, c:character, <span class="Constant">6:literal/cyan</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
<span class="Comment"># make a recursive call to handle nested strings</span>
result:address:buffer, tmp:number, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-string result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation, <span class="Constant">1:literal/nested?</span>
<span class="Comment"># but if we backspace over a completed nested string, handle it in the caller</span>
characters-slurped:number<span class="Special"> <- </span>add characters-slurped:number, tmp:number, <span class="Constant">1:literal</span> <span class="Comment"># for the leading '['</span>
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="Comment"># print</span>
print-character x:address:screen, c:character, <span class="Constant">6:literal/cyan</span>
<span class="Comment"># append</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
<span class="Comment"># backspace? decrement</span>
<span class="Delimiter">{</span>
backspace?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">8:literal/backspace</span>
<span class="muControl">break-unless</span> backspace?:boolean
characters-slurped:number<span class="Special"> <- </span>subtract characters-slurped:number, <span class="Constant">1:literal</span>
<span class="Delimiter">{</span>
reset-color?:boolean<span class="Special"> <- </span>lesser-or-equal characters-slurped:number, <span class="Constant">0:literal</span>
<span class="muControl">break-unless</span> reset-color?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string: too many backspaces; returning]</span>
<span class="muControl">reply</span> result:address:buffer/same-as-ingredient:0, <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="muControl">loop</span> <span class="Constant">+next-character:label</span>
<span class="Delimiter">}</span>
<span class="Comment"># otherwise increment</span>
characters-slurped:number<span class="Special"> <- </span>add characters-slurped:number, <span class="Constant">1:literal</span>
<span class="Comment"># done with this instruction?</span>
done?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">93:literal/close-bracket</span>
<span class="muControl">break-if</span> done?:boolean
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
<span class="Delimiter">{</span>
<span class="muControl">break-unless</span> nested-string?:boolean
<span class="Comment"># nested string? return like a normal recipe</span>
<span class="muControl">reply</span> result:address:buffer, characters-slurped:number, k:address:keyboard, x:address:screen
<span class="Delimiter">}</span>
<span class="Comment"># top-level string call? recurse</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string: close-bracket encountered; recursing to regular characters]</span>
result:address:buffer, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-regular-characters result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation
<span class="Comment"># backspaced back into this string</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-string: backspaced back into string; restarting]</span>
<span class="muControl">jump</span> <span class="Constant">+next-character:label</span>
]
<span class="muRecipe">recipe</span> slurp-assignment [
<span class="Constant">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
result:address:buffer<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
k:address:keyboard<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
x:address:screen<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
complete:continuation<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
<span class="Delimiter">{</span>
<span class="Constant"> +next-character</span>
<span class="Comment"># read character</span>
c:character, k:address:keyboard<span class="Special"> <- </span>wait-for-key k:address:keyboard
<span class="Comment"># quit?</span>
<span class="Delimiter">{</span>
ctrl-d?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">4:literal/ctrl-d/eof</span>
<span class="muControl">break-unless</span> ctrl-d?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-assignment: ctrl-d]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Delimiter">{</span>
null?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">0:literal/null</span>
<span class="muControl">break-unless</span> null?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-assignment: null]</span>
<span class="muControl">reply</span> <span class="Constant">0:literal</span>, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Comment"># print</span>
print-character x:address:screen, c:character, <span class="Constant">1:literal/red</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-assignment: saved one character]</span>
<span class="Comment"># append</span>
result:address:buffer<span class="Special"> <- </span>buffer-append result:address:buffer, c:character
<span class="Comment"># backspace? return</span>
<span class="Delimiter">{</span>
backspace?:boolean<span class="Special"> <- </span>equal c:character, <span class="Constant">8:literal/backspace</span>
<span class="muControl">break-unless</span> backspace?:boolean
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-assignment: backspace; returning]</span>
<span class="muControl">reply</span> result:address:buffer/same-as-ingredient:0, k:address:keyboard/same-as-ingredient:1, x:address:screen/same-as-ingredient:2
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-assignment: done, recursing to regular characters]</span>
result:address:buffer, k:address:keyboard, x:address:screen<span class="Special"> <- </span>slurp-regular-characters result:address:buffer, k:address:keyboard, x:address:screen, complete:continuation
<span class="Comment"># backspaced back into this string</span>
trace <span class="Constant">[app]</span>, <span class="Constant">[slurp-assignment: backspaced back into assignment; restarting]</span>
<span class="muControl">jump</span> <span class="Constant">+next-character:label</span>
]
<span class="muScenario">scenario</span> read-instruction-color-comment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[# comment</span>
<span class="Constant">]</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> .# comment .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-cancel-comment-on-backspace [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[#a««z</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .z .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-cancel-comment-on-backspace2 [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[#ab«««z</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .z .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-cancel-comment-on-backspace3 [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[#a«z</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> .#z .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-stop-after-comment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
<span class="Comment"># keyboard contains comment and then a second line</span>
assume-keyboard <span class="Constant">[#abc</span>
<span class="Constant">3</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
<span class="Comment"># check that read-instruction reads just the comment</span>
screen-should-contain [
<span class="Constant"> .#abc .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-color-string [
<span class="CommentedCode">#? $start-tracing #? 1</span>
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[abc [string]</span>
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .abc [string] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . [string] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .abc .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-color-string-multiline [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[abc [line1</span>
<span class="Constant">line2]</span>
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .abc [line1 .</span>
<span class="Constant"> .line2] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . [line1 .</span>
<span class="Constant"> .line2] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .abc .</span>
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-color-string-and-comment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[abc [string]</span> <span class="Comment"># comment</span>
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .abc [string] # comment .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> . # comment .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . [string] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .abc .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-ignore-comment-inside-string [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[abc [string # not a comment]</span>
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .abc [string # not a comment] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . [string # not a comment] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .abc .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-ignore-string-inside-comment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[abc # comment [not a string]</span>
]
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .abc # comment [not a string] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .abc .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">4:literal/blue</span>, [
<span class="Constant"> . # comment [not a string] .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-color-string-inside-string [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[abc [string [inner string]</span>]
]
run [
<span class="CommentedCode">#? $start-tracing #? 1</span>
read-instruction keyboard:address, screen:address
<span class="CommentedCode">#? $stop-tracing #? 1</span>
<span class="CommentedCode">#? $browse-trace #? 1</span>
]
screen-should-contain [
<span class="Constant"> .abc [string [inner string]] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . [string [inner string]] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .abc .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-cancel-string-on-backspace [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
<span class="Comment"># need to escape the '[' once for 'scenario' and once for 'assume-keyboard'</span>
assume-keyboard <span class="Constant">[\\\[a««z</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .z .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-cancel-string-inside-string-on-backspace [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[[a[b]</span>«««b]
]
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> .[ab] .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-backspace-back-into-string [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[[a]</span>«b
]
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .\\\[ab .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">6:literal/cyan</span>, [
<span class="Constant"> .\\\[ab .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> . .</span>
<span class="Constant"> . .</span>
]
<span class="Comment"># todo: trace sequence of events</span>
<span class="Comment"># slurp-regular-characters: [</span>
<span class="Comment"># slurp-regular-characters/slurp-string: a</span>
<span class="Comment"># slurp-regular-characters/slurp-string: ]</span>
<span class="Comment"># slurp-regular-characters/slurp-string/slurp-regular-characters: backspace</span>
<span class="Comment"># slurp-regular-characters/slurp-string: b</span>
]
<span class="muScenario">scenario</span> read-instruction-highlight-start-of-assignment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[a <</span>
<span class="Constant">]</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .a < .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">1:literal/red</span>, [
<span class="Constant"> . < .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .a .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-highlight-assignment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[a <- b</span>
<span class="Constant">]</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .a <- b .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">1:literal/red</span>, [
<span class="Constant"> . <- .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .a b .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-backspace-over-assignment [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[a <-«</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .a < .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">1:literal/red</span>, [
<span class="Constant"> . < .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .a .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-assignment-continues-after-backspace [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[a <-«-</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
]
screen-should-contain [
<span class="Constant"> .a <- .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">1:literal/red</span>, [
<span class="Constant"> . <- .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .a .</span>
<span class="Constant"> . .</span>
]
]
<span class="muScenario">scenario</span> read-instruction-assignment-continues-after-backspace2 [
assume-screen <span class="Constant">30:literal/width</span>, <span class="Constant">5:literal/height</span>
assume-keyboard <span class="Constant">[a <- ««-</span>
<span class="Constant">]</span>
replace-in-keyboard <span class="Constant">171:literal/«</span>, <span class="Constant">8:literal/backspace</span>
run [
read-instruction keyboard:address, screen:address
<span class="CommentedCode">#? $browse-trace #? 1</span>
]
screen-should-contain [
<span class="Constant"> .a <- .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">1:literal/red</span>, [
<span class="Constant"> . <- .</span>
<span class="Constant"> . .</span>
]
screen-should-contain-in-color <span class="Constant">7:literal/white</span>, [
<span class="Constant"> .a .</span>
<span class="Constant"> . .</span>
]
]
</pre>
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