1 files changed, 31 insertions, 30 deletions
diff --git a/html/edit/009-sandbox-trace.mu.html b/html/edit/009-sandbox-trace.mu.html
index 6d5603bd..868d68fc 100644
--- a/html/edit/009-sandbox-trace.mu.html
+++ b/html/edit/009-sandbox-trace.mu.html
@@ -39,22 +39,22 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
   assume-screen <span class="Constant">40/width</span>, <span class="Constant">10/height</span>
   <span class="Comment"># basic recipe</span>
-  <span class="Constant">1</span>:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </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">  stash [abc]</span>
 ]]
   <span class="Comment"># run it</span>
-  <span class="Constant">2</span>:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
+  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
   assume-console [
     press F4
   ]
-  <span class="Constant">3</span>:address:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:screen, <span class="Constant">1</span>:address:array:character, <span class="Constant">2</span>:address:array:character
-  event-loop screen:address:screen, console:address:console, <span class="Constant">3</span>:address:programming-environment-data
+  <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
+  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"> .                     run (F4)           .</span>
    <span class="Constant"> .                    ┊                   .</span>
    <span class="Constant"> .recipe foo [        ┊━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]       ┊                  x.</span>
+   <span class="Constant"> .  stash [abc]       ┊0                 x.</span>
    <span class="Constant"> .]                   ┊foo                .</span>
 <span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━.</span>
    <span class="Constant"> .                    ┊                   .</span>
@@ -64,15 +64,16 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     left-click <span class="Constant">4</span>, <span class="Constant">21</span>
   ]
   run [
-    event-loop screen:address:screen, console:address:console, <span class="Constant">3</span>:address:programming-environment-data
-    print screen:address:screen, <span class="Constant">9251/␣/cursor</span>
+    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
+    <span class="Constant">4</span>:character/cursor-icon<span class="Special"> &lt;- </span>copy <span class="Constant">9251/␣</span>
+    print screen:address:shared:screen, <span class="Constant">4</span>:character/cursor-icon
   ]
   <span class="Comment"># trace now printed and cursor shouldn't have budged</span>
   screen-should-contain [
    <span class="Constant"> .                     run (F4)           .</span>
    <span class="Constant"> .␣                   ┊                   .</span>
    <span class="Constant"> .recipe foo [        ┊━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]       ┊                  x.</span>
+   <span class="Constant"> .  stash [abc]       ┊0                 x.</span>
    <span class="Constant"> .]                   ┊foo                .</span>
    <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊abc                .</span>
    <span class="Constant"> .                    ┊━━━━━━━━━━━━━━━━━━━.</span>
@@ -93,15 +94,15 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     left-click <span class="Constant">4</span>, <span class="Constant">25</span>
   ]
   run [
-    event-loop screen:address:screen, console:address:console, <span class="Constant">3</span>:address:programming-environment-data
-    print screen:address:screen, <span class="Constant">9251/␣/cursor</span>
+    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
+    print screen:address:shared:screen, <span class="Constant">4</span>:character/cursor-icon
   ]
   <span class="Comment"># trace hidden again</span>
   screen-should-contain [
    <span class="Constant"> .                     run (F4)           .</span>
    <span class="Constant"> .␣                   ┊                   .</span>
    <span class="Constant"> .recipe foo [        ┊━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]       ┊                  x.</span>
+   <span class="Constant"> .  stash [abc]       ┊0                 x.</span>
    <span class="Constant"> .]                   ┊foo                .</span>
 <span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━.</span>
    <span class="Constant"> .                    ┊                   .</span>
@@ -112,23 +113,23 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   trace-until <span class="Constant">100/app</span>  <span class="Comment"># trace too long</span>
   assume-screen <span class="Constant">40/width</span>, <span class="Constant">10/height</span>
   <span class="Comment"># basic recipe</span>
-  <span class="Constant">1</span>:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[ </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">  stash [abc]</span>
   <span class="muControl">reply</span> <span class="Constant">4</span>
 ]]
   <span class="Comment"># run it</span>
-  <span class="Constant">2</span>:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
+  <span class="Constant">2</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[foo]</span>
   assume-console [
     press F4
   ]
-  <span class="Constant">3</span>:address:programming-environment-data<span class="Special"> &lt;- </span>new-programming-environment screen:address:screen, <span class="Constant">1</span>:address:array:character, <span class="Constant">2</span>:address:array:character
-  event-loop screen:address:screen, console:address:console, <span class="Constant">3</span>:address:programming-environment-data
+  <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
+  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"> .                     run (F4)           .</span>
    <span class="Constant"> .                    ┊                   .</span>
    <span class="Constant"> .recipe foo [        ┊━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]       ┊                  x.</span>
+   <span class="Constant"> .  stash [abc]       ┊0                 x.</span>
    <span class="Constant"> .  reply 4           ┊foo                .</span>
    <span class="Constant"> .]                   ┊4                  .</span>
 <span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━.</span>
@@ -139,14 +140,14 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     left-click <span class="Constant">4</span>, <span class="Constant">21</span>
   ]
   run [
-    event-loop screen:address:screen, console:address:console, <span class="Constant">3</span>:address:programming-environment-data
+    event-loop screen:address:shared:screen, console:address:shared:console, <span class="Constant">3</span>:address:shared:programming-environment-data
   ]
   <span class="Comment"># trace now printed above result</span>
   screen-should-contain [
    <span class="Constant"> .                     run (F4)           .</span>
    <span class="Constant"> .                    ┊                   .</span>
    <span class="Constant"> .recipe foo [        ┊━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]       ┊                  x.</span>
+   <span class="Constant"> .  stash [abc]       ┊0                 x.</span>
    <span class="Constant"> .  reply 4           ┊foo                .</span>
    <span class="Constant"> .]                   ┊abc                .</span>
    <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                  .</span>
@@ -156,18 +157,18 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 ]
 
 <span class="muData">container</span> sandbox-data [
-  trace:address:array:character
+  trace:address:shared:array:character
   display-trace?:boolean
 ]
 
 <span class="Comment"># replaced in a later layer</span>
-<span class="muRecipe">recipe!</span> update-sandbox sandbox:address:sandbox-data<span class="muRecipe"> -&gt; </span>sandbox:address:sandbox-data [
+<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>
-  data:address:array:character<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">data:offset</span>
-  response:address:address:array:character<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">response:offset</span>
-  trace:address:address:array:character<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">trace:offset</span>
-  fake-screen:address:address:screen<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">screen:offset</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>
+  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>
   *response, _, *fake-screen, *trace<span class="Special"> &lt;- </span>run-interactive data
 ]
 
@@ -179,28 +180,28 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     click-column:number<span class="Special"> &lt;- </span>get *t, <span class="Constant">column:offset</span>
     on-sandbox-side?:boolean<span class="Special"> &lt;- </span>greater-or-equal click-column, sandbox-left-margin
     <span class="muControl">break-unless</span> on-sandbox-side?
-    first-sandbox:address:sandbox-data<span class="Special"> &lt;- </span>get *env, <span class="Constant">sandbox:offset</span>
+    first-sandbox:address:shared:sandbox-data<span class="Special"> &lt;- </span>get *env, <span class="Constant">sandbox:offset</span>
     <span class="muControl">break-unless</span> first-sandbox
     first-sandbox-begins:number<span class="Special"> &lt;- </span>get *first-sandbox, <span class="Constant">starting-row-on-screen:offset</span>
     click-row:number<span class="Special"> &lt;- </span>get *t, <span class="Constant">row:offset</span>
     below-sandbox-editor?:boolean<span class="Special"> &lt;- </span>greater-or-equal click-row, first-sandbox-begins
     <span class="muControl">break-unless</span> below-sandbox-editor?
     <span class="Comment"># identify the sandbox whose code is being clicked on</span>
-    sandbox:address:sandbox-data<span class="Special"> &lt;- </span>find-click-in-sandbox-code env, click-row
+    sandbox:address:shared:sandbox-data<span class="Special"> &lt;- </span>find-click-in-sandbox-code env, click-row
     <span class="muControl">break-unless</span> sandbox
     <span class="Comment"># toggle its display-trace? property</span>
     x:address:boolean<span class="Special"> &lt;- </span>get-address *sandbox, <span class="Constant">display-trace?:offset</span>
     *x<span class="Special"> &lt;- </span>not *x
     hide-screen screen
     screen<span class="Special"> &lt;- </span>render-sandbox-side screen, env, <span class="Constant">1/clear</span>
-    screen<span class="Special"> &lt;- </span>update-cursor screen, recipes, current-sandbox, *sandbox-in-focus?
+    screen<span class="Special"> &lt;- </span>update-cursor screen, recipes, current-sandbox, *sandbox-in-focus?, env
     <span class="Comment"># no change in cursor</span>
     show-screen screen
     <span class="muControl">loop</span> <span class="Constant">+next-event:label</span>
   <span class="Delimiter">}</span>
 ]
 
-<span class="muRecipe">recipe</span> find-click-in-sandbox-code env:address:programming-environment-data, click-row:number<span class="muRecipe"> -&gt; </span>sandbox:address:sandbox-data [
+<span class="muRecipe">recipe</span> find-click-in-sandbox-code env:address:shared:programming-environment-data, click-row:number<span class="muRecipe"> -&gt; </span>sandbox:address:shared:sandbox-data [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   <span class="Comment"># assert click-row &gt;= sandbox.starting-row-on-screen</span>
@@ -210,7 +211,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   assert clicked-on-sandboxes?, <span class="Constant">[extract-sandbox called on click to sandbox editor]</span>
   <span class="Comment"># while click-row &lt; sandbox.next-sandbox.starting-row-on-screen</span>
   <span class="Delimiter">{</span>
-    next-sandbox:address:sandbox-data<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">next-sandbox:offset</span>
+    next-sandbox:address:shared:sandbox-data<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">next-sandbox:offset</span>
     <span class="muControl">break-unless</span> next-sandbox
     next-start:number<span class="Special"> &lt;- </span>get *next-sandbox, <span class="Constant">starting-row-on-screen:offset</span>
     found?:boolean<span class="Special"> &lt;- </span>lesser-than click-row, next-start
@@ -236,7 +237,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   <span class="Delimiter">{</span>
     display-trace?:boolean<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">display-trace?:offset</span>
     <span class="muControl">break-unless</span> display-trace?
-    sandbox-trace:address:array:character<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">trace:offset</span>
+    sandbox-trace:address:shared:array:character<span class="Special"> &lt;- </span>get *sandbox, <span class="Constant">trace:offset</span>
     <span class="muControl">break-unless</span> sandbox-trace  <span class="Comment"># nothing to print; move on</span>
     row, screen<span class="Special"> &lt;- </span>render screen, sandbox-trace, left, right, <span class="Constant">245/grey</span>, row
   <span class="Delimiter">}</span>