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authorKartik K. Agaram <vc@akkartik.com>2016-02-25 17:17:20 -0800
committerKartik K. Agaram <vc@akkartik.com>2016-02-25 17:17:20 -0800
commitdcc060c7d4ef56b978beb34ddce8d8ffcec94fa6 (patch)
tree7cbb9cd1d8544c7c6c65725fa195ca3821b04b07 /html/edit/010-warnings.mu.html
parent0f5a2f4e21046e319ce0fadec32cc5e89d2f4620 (diff)
downloadmu-dcc060c7d4ef56b978beb34ddce8d8ffcec94fa6.tar.gz
2706 - update html
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-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-<head>
-<meta http-equiv="content-type" content="text/html; charset=UTF-8">
-<title>Mu - edit/010-warnings.mu</title>
-<meta name="Generator" content="Vim/7.4">
-<meta name="plugin-version" content="vim7.4_v1">
-<meta name="syntax" content="none">
-<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
-<meta name="colorscheme" content="minimal">
-<style type="text/css">
-<!--
-pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; }
-body { font-family: monospace; color: #eeeeee; background-color: #080808; }
-* { font-size: 1.05em; }
-.muControl { color: #c0a020; }
-.muRecipe { color: #ff8700; }
-.Special { color: #ff6060; }
-.muData { color: #ffff00; }
-.Comment { color: #9090ff; }
-.Constant { color: #00a0a0; }
-.SalientComment { color: #00ffff; }
-.CommentedCode { color: #6c6c6c; }
-.Delimiter { color: #a04060; }
-.muScenario { color: #00af00; }
--->
-</style>
-
-<script type='text/javascript'>
-<!--
-
--->
-</script>
-</head>
-<body>
-<pre id='vimCodeElement'>
-<span class="SalientComment">## handling malformed programs</span>
-
-<span class="muData">container</span> programming-environment-data [
-  recipe-warnings:address:shared:array:character
-]
-
-<span class="Comment"># copy code from recipe editor, persist, load into mu, save any warnings</span>
-<span class="muRecipe">recipe!</span> update-recipes env:address:shared:programming-environment-data, screen:address:shared:screen<span class="muRecipe"> -&gt; </span>errors-found?:boolean, env:address:shared:programming-environment-data, screen:address:shared:screen [
-  <span class="Constant">local-scope</span>
-  <span class="Constant">load-ingredients</span>
-<span class="CommentedCode">#?   $log [update recipes]</span>
-  recipes:address:shared:editor-data<span class="Special"> &lt;- </span>get *env, <span class="Constant">recipes:offset</span>
-  in:address:shared:array:character<span class="Special"> &lt;- </span>editor-contents recipes
-  save <span class="Constant">[recipes.mu]</span>, in
-  recipe-warnings:address:address:shared:array:character<span class="Special"> &lt;- </span>get-address *env, <span class="Constant">recipe-warnings:offset</span>
-  *recipe-warnings<span class="Special"> &lt;- </span>reload in
-  <span class="Comment"># if recipe editor has errors, stop</span>
-  <span class="Delimiter">{</span>
-    <span class="muControl">break-unless</span> *recipe-warnings
-    status:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[errors found     ]</span>
-    update-status screen, status, <span class="Constant">1/red</span>
-    errors-found?<span class="Special"> &lt;- </span>copy <span class="Constant">1/true</span>
-    <span class="muControl">reply</span>
-  <span class="Delimiter">}</span>
-  errors-found?<span class="Special"> &lt;- </span>copy <span class="Constant">0/false</span>
-]
-
-<span class="muRecipe">before</span> <span class="Constant">&lt;render-components-end&gt;</span> [
-  trace <span class="Constant">11</span>, <span class="Constant">[app]</span>, <span class="Constant">[render status]</span>
-  recipe-warnings:address:shared:array:character<span class="Special"> &lt;- </span>get *env, <span class="Constant">recipe-warnings:offset</span>
-  <span class="Delimiter">{</span>
-    <span class="muControl">break-unless</span> recipe-warnings
-    status:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[errors found     ]</span>
-    update-status screen, status, <span class="Constant">1/red</span>
-  <span class="Delimiter">}</span>
-]
-
-<span class="muRecipe">before</span> <span class="Constant">&lt;render-recipe-components-end&gt;</span> [
-  <span class="Delimiter">{</span>
-    recipe-warnings:address:shared:array:character<span class="Special"> &lt;- </span>get *env, <span class="Constant">recipe-warnings:offset</span>
-    <span class="muControl">break-unless</span> recipe-warnings
-    row, screen<span class="Special"> &lt;- </span>render screen, recipe-warnings, left, right, <span class="Constant">1/red</span>, row
-  <span class="Delimiter">}</span>
-]
-
-<span class="muData">container</span> programming-environment-data [
-  warning-index:number  <span class="Comment"># index of first sandbox with an error (or -1 if none)</span>
-]
-
-<span class="muRecipe">after</span> <span class="Constant">&lt;programming-environment-initialization&gt;</span> [
-  warning-index:address:number<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">warning-index:offset</span>
-  *warning-index<span class="Special"> &lt;- </span>copy <span class="Constant">-1</span>
-]
-
-<span class="muRecipe">after</span> <span class="Constant">&lt;run-sandboxes-begin&gt;</span> [
-  warning-index:address:number<span class="Special"> &lt;- </span>get-address *env, <span class="Constant">warning-index:offset</span>
-  *warning-index<span class="Special"> &lt;- </span>copy <span class="Constant">-1</span>
-]
-
-<span class="muRecipe">before</span> <span class="Constant">&lt;run-sandboxes-end&gt;</span> [
-  <span class="Delimiter">{</span>
-    sandboxes-completed-successfully?:boolean<span class="Special"> &lt;- </span>equal *warning-index, <span class="Constant">-1</span>
-    <span class="muControl">break-if</span> sandboxes-completed-successfully?
-    errors-found?<span class="Special"> &lt;- </span>copy <span class="Constant">1/true</span>
-  <span class="Delimiter">}</span>
-]
-
-<span class="muRecipe">before</span> <span class="Constant">&lt;render-components-end&gt;</span> [
-  <span class="Delimiter">{</span>
-    <span class="muControl">break-if</span> recipe-warnings
-    warning-index:number<span class="Special"> &lt;- </span>get *env, <span class="Constant">warning-index:offset</span>
-    sandboxes-completed-successfully?:boolean<span class="Special"> &lt;- </span>equal warning-index, <span class="Constant">-1</span>
-    <span class="muControl">break-if</span> sandboxes-completed-successfully?
-    status-template:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[errors found (_)    ]</span>
-    warning-index-text:address:shared:array:character<span class="Special"> &lt;- </span>to-text warning-index
-    status:address:shared:array:character<span class="Special"> &lt;- </span>interpolate status-template, warning-index-text
-<span class="CommentedCode">#?     $print [update-status: sandbox warning], 10/newline</span>
-    update-status screen, status, <span class="Constant">1/red</span>
-<span class="CommentedCode">#?     $print [run sandboxes end], 10/newline</span>
-  <span class="Delimiter">}</span>
-]
-
-<span class="muData">container</span> sandbox-data [
-  warnings:address:shared:array:character
-]
-
-<span class="muRecipe">recipe!</span> update-sandbox sandbox:address:shared:sandbox-data, env:address:shared:programming-environment-data, idx:number<span class="muRecipe"> -&gt; </span>sandbox:address:shared:sandbox-data, env:address:shared:programming-environment-data [
-  <span class="Constant">local-scope</span>
-  <span class="Constant">load-ingredients</span>
-<span class="CommentedCode">#?   $log [update sandbox]</span>
-  data:address:shared:array:character<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">data:offset</span>
-  response:address:address:shared:array:character<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">response:offset</span>
-  warnings:address:address:shared:array:character<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">warnings:offset</span>
-  trace:address:address:shared:array:character<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">trace:offset</span>
-  fake-screen:address:address:shared:screen<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">screen:offset</span>
-<span class="CommentedCode">#?   $print [run-interactive], 10/newline</span>
-  *response, *warnings, *fake-screen, *trace, completed?:boolean<span class="Special"> &lt;- </span>run-interactive data
-  <span class="Delimiter">{</span>
-    <span class="muControl">break-if</span> *warnings
-    <span class="muControl">break-if</span> completed?:boolean
-    *warnings<span class="Special"> &lt;- </span>new <span class="Constant">[took too long!</span>
-<span class="Constant">]</span>
-  <span class="Delimiter">}</span>
-  <span class="Delimiter">{</span>
-    <span class="muControl">break-unless</span> *warnings
-<span class="CommentedCode">#?     $print [setting warning-index to ], idx, 10/newline</span>
-    warning-index:address:number<span class="Special"> &lt;- </span>get-address *env, <span class="Constant">warning-index:offset</span>
-    warning-not-set?:boolean<span class="Special"> &lt;- </span>equal *warning-index, <span class="Constant">-1</span>
-    <span class="muControl">break-unless</span> warning-not-set?
-    *warning-index<span class="Special"> &lt;- </span>copy idx
-  <span class="Delimiter">}</span>
-<span class="CommentedCode">#?   $print [done with run-interactive], 10/newline</span>
-]
-
-<span class="Comment"># make sure we render any trace</span>
-<span class="muRecipe">after</span> <span class="Constant">&lt;render-sandbox-trace-done&gt;</span> [
-  <span class="Delimiter">{</span>
-    sandbox-warnings:address:shared:array:character<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">warnings:offset</span>
-    <span class="muControl">break-unless</span> sandbox-warnings
-    response-starting-row:address:number<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">response-starting-row-on-screen:offset</span>
-    *response-starting-row<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>  <span class="Comment"># no response</span>
-    row, screen<span class="Special"> &lt;- </span>render screen, sandbox-warnings, left, right, <span class="Constant">1/red</span>, row
-    <span class="Comment"># don't try to print anything more for this sandbox</span>
-    <span class="muControl">jump</span> <span class="Constant">+render-sandbox-end:label</span>
-  <span class="Delimiter">}</span>
-]
-
-<span class="muScenario">scenario</span> run-shows-warnings-in-get [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </span>
-<span class="Constant">recipe foo [</span>
-<span class="Constant">  get 123:number, foo:offset</span>
-<span class="Constant">]</span>]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  get 123:number, foo:offset                      ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: unknown element foo in container number      ┊                                                 .</span>
-   <span class="Constant"> .foo: first ingredient of 'get' should be a contai↩┊                                                 .</span>
-   <span class="Constant"> .ner, but got 123:number                           ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-  screen-should-contain-in-color <span class="Constant">1/red</span>, [
-   <span class="Constant"> .  errors found                                                                                      .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .foo: unknown element foo in container number                                                        .</span>
-   <span class="Constant"> .foo: first ingredient of 'get' should be a contai                                                   .</span>
-   <span class="Constant"> .ner, but got 123:number                                                                             .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-updates-status-with-first-erroneous-sandbox [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    left-click <span class="Constant">3</span>, <span class="Constant">80</span>
-    <span class="Comment"># create invalid sandbox 1</span>
-    type <span class="Constant">[get foo, x:offset]</span>
-    press F4
-    <span class="Comment"># create invalid sandbox 0</span>
-    type <span class="Constant">[get foo, x:offset]</span>
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># status line shows that error is in first sandbox</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-updates-status-with-first-erroneous-sandbox-2 [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    left-click <span class="Constant">3</span>, <span class="Constant">80</span>
-    <span class="Comment"># create invalid sandbox 2</span>
-    type <span class="Constant">[get foo, x:offset]</span>
-    press F4
-    <span class="Comment"># create invalid sandbox 1</span>
-    type <span class="Constant">[get foo, x:offset]</span>
-    press F4
-    <span class="Comment"># create valid sandbox 0</span>
-    type <span class="Constant">[add 2, 2]</span>
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># status line shows that error is in second sandbox</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (1)                                                               run (F4)           .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-hides-warnings-from-past-sandboxes [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[get foo, x:offset]</span>  <span class="Comment"># invalid</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4  <span class="Comment"># generate error</span>
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  assume-console [
-    left-click <span class="Constant">3</span>, <span class="Constant">80</span>
-    press ctrl-k
-    type <span class="Constant">[add 2, 2]</span>  <span class="Comment"># valid code</span>
-    press F4  <span class="Comment"># update sandbox</span>
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># error should disappear</span>
-  screen-should-contain [
-   <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0                                               x.</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-updates-warnings-for-shape-shifting-recipes [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Comment"># define a shape-shifting recipe with an error</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[recipe foo x:_elem -&gt; z:_elem [</span>
-<span class="Constant">local-scope</span>
-<span class="Constant">load-ingredients</span>
-<span class="Constant">z &lt;- add x, [a]</span>
-]]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo 2]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo x:_elem -&gt; z:_elem [                   ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .load-ingredients                                  ┊0                                               x.</span>
-   <span class="Constant"> .z &lt;- add x, [a]                                   ┊foo 2                                            .</span>
-   <span class="Constant"> .]                                                 ┊foo_2: 'add' requires number ingredients, but go↩.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊t [a]                                            .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-  <span class="Comment"># now rerun everything</span>
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># error should remain unchanged</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo x:_elem -&gt; z:_elem [                   ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .load-ingredients                                  ┊0                                               x.</span>
-   <span class="Constant"> .z &lt;- add x, [a]                                   ┊foo 2                                            .</span>
-   <span class="Constant"> .]                                                 ┊foo_2: 'add' requires number ingredients, but go↩.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊t [a]                                            .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-avoids-spurious-warnings-on-reloading-shape-shifting-recipes [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Comment"># overload a well-known shape-shifting recipe</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[recipe length l:address:shared:list:_elem -&gt; n:number [</span>
-<span class="Constant">]</span>]
-  <span class="Comment"># call code that uses other variants of it, but not it itself</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[x:address:shared:list:number &lt;- copy 0</span>
-<span class="Constant">to-text x]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  <span class="Comment"># run it once</span>
-  assume-console [
-    press F4
-  ]
-  event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  <span class="Comment"># no errors anywhere on screen (can't check anything else, since to-text will return an address)</span>
-  screen-should-contain-in-color <span class="Constant">1/red</span>, [
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                &lt;-                  .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-  ]
-  <span class="Comment"># rerun everything</span>
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># still no errors</span>
-  screen-should-contain-in-color <span class="Constant">1/red</span>, [
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                &lt;-                  .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-shows-missing-type-warnings [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </span>
-<span class="Constant">recipe foo [</span>
-<span class="Constant">  x &lt;- copy 0</span>
-<span class="Constant">]</span>]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  x &lt;- copy 0                                     ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: missing type for x in 'x &lt;- copy 0'          ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-shows-unbalanced-bracket-warnings [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Comment"># recipe is incomplete (unbalanced '[')</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </span>
-<span class="Constant">recipe foo «</span>
-<span class="Constant">  x &lt;- copy 0</span>
-<span class="Constant">]</span>
-  replace <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">171/«</span>, <span class="Constant">91</span>  <span class="Comment"># '['</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo \\\[                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  x &lt;- copy 0                                     ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .9: unbalanced '\\\[' for recipe                      ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-shows-get-on-non-container-warnings [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </span>
-<span class="Constant">recipe foo [</span>
-<span class="Constant">  local-scope</span>
-<span class="Constant">  x:address:shared:point &lt;- new point:type</span>
-<span class="Constant">  get x:address:shared:point, 1:offset</span>
-<span class="Constant">]</span>]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:address:shared:point &lt;- new point:type        ┊                                                 .</span>
-   <span class="Constant"> .  get x:address:shared:point, 1:offset            ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: first ingredient of 'get' should be a contai↩┊                                                 .</span>
-   <span class="Constant"> .ner, but got x:address:shared:point               ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-shows-non-literal-get-argument-warnings [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </span>
-<span class="Constant">recipe foo [</span>
-<span class="Constant">  local-scope</span>
-<span class="Constant">  x:number &lt;- copy 0</span>
-<span class="Constant">  y:address:shared:point &lt;- new point:type</span>
-<span class="Constant">  get *y:address:shared:point, x:number</span>
-<span class="Constant">]</span>]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:number &lt;- copy 0                              ┊                                                 .</span>
-   <span class="Constant"> .  y:address:shared:point &lt;- new point:type        ┊                                                 .</span>
-   <span class="Constant"> .  get *y:address:shared:point, x:number           ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: expected ingredient 1 of 'get' to have type ↩┊                                                 .</span>
-   <span class="Constant"> .'offset'; got x:number                            ┊                                                 .</span>
-   <span class="Constant"> .foo: second ingredient of 'get' should have type ↩┊                                                 .</span>
-   <span class="Constant"> .'offset', but got x:number                        ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-shows-warnings-everytime [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  <span class="Comment"># try to run a file with an error</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </span>
-<span class="Constant">recipe foo [</span>
-<span class="Constant">  local-scope</span>
-<span class="Constant">  x:number &lt;- copy y:number</span>
-<span class="Constant">]</span>]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  assume-console [
-    press F4
-  ]
-  event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:number &lt;- copy y:number                       ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: use before set: y                            ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-  <span class="Comment"># rerun the file, check for the same error</span>
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:number &lt;- copy y:number                       ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: use before set: y                            ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-instruction-and-print-warnings [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
-  <span class="Comment"># left editor is empty</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Comment"># right editor contains an illegal instruction</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[get 1234:number, foo:offset]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  <span class="Comment"># run the code in the editors</span>
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># check that screen prints error message in red</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0                                               x.</span>
-   <span class="Constant"> .                                                  ┊get 1234:number, foo:offset                      .</span>
-   <span class="Constant"> .                                                  ┊unknown element foo in container number          .</span>
-   <span class="Constant"> .                                                  ┊first ingredient of 'get' should be a container,↩.</span>
-   <span class="Constant"> .                                                  ┊ but got 1234:number                             .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-  screen-should-contain-in-color <span class="Constant">7/white</span>, [
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                   get 1234:number, foo:offset                      .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-  ]
-  screen-should-contain-in-color <span class="Constant">1/red</span>, [
-   <span class="Constant"> .  errors found (0)                                                                                  .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                   unknown element foo in container number          .</span>
-   <span class="Constant"> .                                                   first ingredient of 'get' should be a container, .</span>
-   <span class="Constant"> .                                                    but got 1234:number                             .</span>
-   <span class="Constant"> .                                                                                                    .</span>
-  ]
-  screen-should-contain-in-color <span class="Constant">245/grey</span>, [
-   <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                x.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                ↩.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> run-instruction-and-print-warnings-only-once [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
-  <span class="Comment"># left editor is empty</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-  <span class="Comment"># right editor contains an illegal instruction</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[get 1234:number, foo:offset]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  <span class="Comment"># run the code in the editors multiple times</span>
-  assume-console [
-    press F4
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># check that screen prints error message just once</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0                                               x.</span>
-   <span class="Constant"> .                                                  ┊get 1234:number, foo:offset                      .</span>
-   <span class="Constant"> .                                                  ┊unknown element foo in container number          .</span>
-   <span class="Constant"> .                                                  ┊first ingredient of 'get' should be a container,↩.</span>
-   <span class="Constant"> .                                                  ┊ but got 1234:number                             .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> sandbox-can-handle-infinite-loop [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">20/height</span>
-  <span class="Comment"># left editor is empty</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[recipe foo [</span>
-<span class="Constant">  {</span>
-<span class="Constant">    loop</span>
-<span class="Constant">  }</span>
-<span class="Constant">]</span>]
-  <span class="Comment"># right editor contains an instruction</span>
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  <span class="Comment"># run the sandbox</span>
-  assume-console [
-    press F4
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo [                                      ┊                                                 .</span>
-   <span class="Constant"> .  {                                               ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .    loop                                          ┊0                                               x.</span>
-   <span class="Constant"> .  }                                               ┊foo                                              .</span>
-   <span class="Constant"> .]                                                 ┊took too long!                                   .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-  ]
-]
-
-<span class="muScenario">scenario</span> sandbox-with-warnings-shows-trace [
-  trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
-  assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
-  <span class="Comment"># generate a stash and a warning</span>
-  <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[recipe foo [</span>
-<span class="Constant">local-scope</span>
-<span class="Constant">a:number &lt;- next-ingredient</span>
-<span class="Constant">b:number &lt;- next-ingredient</span>
-<span class="Constant">stash [dividing by]</span>, b
-_, c:number<span class="Special"> &lt;- </span>divide-with-remainder a, b
-<span class="muControl">reply</span> b
-]]
-  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo 4, 0]</span>
-  <span class="Constant">3</span>:address:shared:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:shared:screen, <span class="Constant">1</span>:address:shared:array:character, <span class="Constant">2</span>:address:shared:array:character
-  <span class="Comment"># run</span>
-  assume-console [
-    press F4
-  ]
-  event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  <span class="Comment"># screen prints error message</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo [                                      ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .a:number &lt;- next-ingredient                       ┊0                                               x.</span>
-   <span class="Constant"> .b:number &lt;- next-ingredient                       ┊foo 4, 0                                         .</span>
-   <span class="Constant"> .stash [dividing by], b                            ┊foo: divide by zero in '_, c:number &lt;- divide-wi↩.</span>
-   <span class="Constant"> ._, c:number &lt;- divide-with-remainder a, b         ┊th-remainder a, b'                               .</span>
-   <span class="Constant"> .reply b                                           ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-  ]
-  <span class="Comment"># click on the call in the sandbox</span>
-  assume-console [
-    left-click <span class="Constant">4</span>, <span class="Constant">55</span>
-  ]
-  run [
-    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
-  ]
-  <span class="Comment"># screen should expand trace</span>
-  screen-should-contain [
-   <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo [                                      ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .a:number &lt;- next-ingredient                       ┊0                                               x.</span>
-   <span class="Constant"> .b:number &lt;- next-ingredient                       ┊foo 4, 0                                         .</span>
-   <span class="Constant"> .stash [dividing by], b                            ┊dividing by 0                                    .</span>
-   <span class="Constant"> ._, c:number &lt;- divide-with-remainder a, b         ┊foo: divide by zero in '_, c:number &lt;- divide-wi↩.</span>
-   <span class="Constant"> .reply b                                           ┊th-remainder a, b'                               .</span>
-   <span class="Constant"> .]                                                 ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-  ]
-]
-</pre>
-</body>
-</html>
-<!-- vim: set foldmethod=manual : -->