2605

1 files changed, 57 insertions, 45 deletions

diff --git a/html/edit/001-editor.mu.html b/html/edit/001-editor.mu.html
index 11d1cb9d..ec683ce7 100644
--- a/html/edit/001-editor.mu.html
+++ b/html/edit/001-editor.mu.html
@@ -37,7 +37,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 
 <span class="Comment"># temporary main for this layer: just render the given text at the given</span>
 <span class="Comment"># screen dimensions, then stop</span>
-<span class="muRecipe">recipe!</span> main text:address:array:character [
+<span class="muRecipe">recipe!</span> main text:address:shared:array:character [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   open-console
@@ -51,8 +51,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initially-prints-text-to-screen [
   assume-screen <span class="Constant">10/width</span>, <span class="Constant">5/height</span>
   run [
-    <span class="Constant">1</span>:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc]</span>
-    new-editor <span class="Constant">1</span>:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">10/right</span>
+    <span class="Constant">1</span>:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc]</span>
+    new-editor <span class="Constant">1</span>:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">10/right</span>
   ]
   screen-should-contain [
     <span class="Comment"># top line of screen reserved for menu</span>
@@ -64,16 +64,17 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 
 <span class="muData">container</span> editor-data [
   <span class="Comment"># editable text: doubly linked list of characters (head contains a special sentinel)</span>
-  data:address:duplex-list:character
-  top-of-screen:address:duplex-list:character
-  bottom-of-screen:address:duplex-list:character
+  data:address:shared:duplex-list:character
+  top-of-screen:address:shared:duplex-list:character
+  bottom-of-screen:address:shared:duplex-list:character
   <span class="Comment"># location before cursor inside data</span>
-  before-cursor:address:duplex-list:character
+  before-cursor:address:shared:duplex-list:character
 
   <span class="Comment"># raw bounds of display area on screen</span>
   <span class="Comment"># always displays from row 1 (leaving row 0 for a menu) and at most until bottom of screen</span>
   left:number
   right:number
+  bottom:number
   <span class="Comment"># raw screen coordinates of cursor</span>
   cursor-row:number
   cursor-column:number
@@ -82,7 +83,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="Comment"># creates a new editor widget and renders its initial appearance to screen</span>
 <span class="Comment">#   top/left/right constrain the screen area available to the new editor</span>
 <span class="Comment">#   right is exclusive</span>
-<span class="muRecipe">recipe</span> new-editor s:address:array:character, screen:address:screen, left:number, right:number<span class="muRecipe"> -&gt; </span>result:address:editor-data, screen:address:screen [
+<span class="muRecipe">recipe</span> new-editor s:address:shared:array:character, screen:address:shared:screen, left:number, right:number<span class="muRecipe"> -&gt; </span>result:address:shared:editor-data, screen:address:shared:screen [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   <span class="Comment"># no clipping of bounds</span>
@@ -98,11 +99,11 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   *x<span class="Special"> &lt;- </span>copy <span class="Constant">1/top</span>
   x<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">cursor-column:offset</span>
   *x<span class="Special"> &lt;- </span>copy left
-  init:address:address:duplex-list:character<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">data:offset</span>
+  init:address:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">data:offset</span>
   *init<span class="Special"> &lt;- </span>push <span class="Constant">167/§</span>, <span class="Constant">0/tail</span>
-  top-of-screen:address:address:duplex-list:character<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">top-of-screen:offset</span>
+  top-of-screen:address:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">top-of-screen:offset</span>
   *top-of-screen<span class="Special"> &lt;- </span>copy *init
-  y:address:address:duplex-list:character<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">before-cursor:offset</span>
+  y:address:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get-address *result, <span class="Constant">before-cursor:offset</span>
   *y<span class="Special"> &lt;- </span>copy *init
   result<span class="Special"> &lt;- </span>insert-text result, s
   <span class="Comment"># initialize cursor to top of screen</span>
@@ -113,7 +114,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="Constant">  &lt;editor-initialization&gt;</span>
 ]
 
-<span class="muRecipe">recipe</span> insert-text editor:address:editor-data, text:address:array:character<span class="muRecipe"> -&gt; </span>editor:address:editor-data [
+<span class="muRecipe">recipe</span> insert-text editor:address:shared:editor-data, text:address:shared:array:character<span class="muRecipe"> -&gt; </span>editor:address:shared:editor-data [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   <span class="Comment"># early exit if text is empty</span>
@@ -122,7 +123,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   <span class="muControl">reply-unless</span> len, editor/same-as-ingredient:<span class="Constant">0</span>
   idx:number<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
   <span class="Comment"># now we can start appending the rest, character by character</span>
-  curr:address:duplex-list:character<span class="Special"> &lt;- </span>get *editor, <span class="Constant">data:offset</span>
+  curr:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get *editor, <span class="Constant">data:offset</span>
   <span class="Delimiter">{</span>
     done?:boolean<span class="Special"> &lt;- </span>greater-or-equal idx, len
     <span class="muControl">break-if</span> done?
@@ -139,8 +140,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initializes-without-data [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">3/height</span>
   run [
-    <span class="Constant">1</span>:address:editor-data<span class="Special"> &lt;- </span>new-editor <span class="Constant">0/data</span>, screen:address:screen, <span class="Constant">2/left</span>, <span class="Constant">5/right</span>
-    <span class="Constant">2</span>:editor-data<span class="Special"> &lt;- </span>copy *<span class="Constant">1</span>:address:editor-data
+    <span class="Constant">1</span>:address:shared:editor-data<span class="Special"> &lt;- </span>new-editor <span class="Constant">0/data</span>, screen:address:shared:screen, <span class="Constant">2/left</span>, <span class="Constant">5/right</span>
+    <span class="Constant">2</span>:editor-data<span class="Special"> &lt;- </span>copy *<span class="Constant">1</span>:address:shared:editor-data
   ]
   memory-should-contain [
     <span class="Comment"># 2 (data) &lt;- just the § sentinel</span>
@@ -149,8 +150,9 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     <span class="Comment"># 5 (before cursor) &lt;- the § sentinel</span>
     <span class="Constant">6</span><span class="Special"> &lt;- </span><span class="Constant">2</span>  <span class="Comment"># left</span>
     <span class="Constant">7</span><span class="Special"> &lt;- </span><span class="Constant">4</span>  <span class="Comment"># right  (inclusive)</span>
-    <span class="Constant">8</span><span class="Special"> &lt;- </span><span class="Constant">1</span>  <span class="Comment"># cursor row</span>
-    <span class="Constant">9</span><span class="Special"> &lt;- </span><span class="Constant">2</span>  <span class="Comment"># cursor column</span>
+    <span class="Constant">8</span><span class="Special"> &lt;- </span><span class="Constant">1</span>  <span class="Comment"># bottom</span>
+    <span class="Constant">9</span><span class="Special"> &lt;- </span><span class="Constant">1</span>  <span class="Comment"># cursor row</span>
+    <span class="Constant">10</span><span class="Special"> &lt;- </span><span class="Constant">2</span>  <span class="Comment"># cursor column</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -162,7 +164,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="Comment"># Assumes cursor should be at coordinates (cursor-row, cursor-column) and</span>
 <span class="Comment"># updates before-cursor to match. Might also move coordinates if they're</span>
 <span class="Comment"># outside text.</span>
-<span class="muRecipe">recipe</span> render screen:address:screen, editor:address:editor-data<span class="muRecipe"> -&gt; </span>last-row:number, last-column:number, screen:address:screen, editor:address:editor-data [
+<span class="muRecipe">recipe</span> render screen:address:shared:screen, editor:address:shared:editor-data<span class="muRecipe"> -&gt; </span>last-row:number, last-column:number, screen:address:shared:screen, editor:address:shared:editor-data [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   <span class="muControl">reply-unless</span> editor, <span class="Constant">1/top</span>, <span class="Constant">0/left</span>, screen/same-as-ingredient:<span class="Constant">0</span>, editor/same-as-ingredient:<span class="Constant">1</span>
@@ -170,8 +172,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   screen-height:number<span class="Special"> &lt;- </span>screen-height screen
   right:number<span class="Special"> &lt;- </span>get *editor, <span class="Constant">right:offset</span>
   <span class="Comment"># traversing editor</span>
-  curr:address:duplex-list:character<span class="Special"> &lt;- </span>get *editor, <span class="Constant">top-of-screen:offset</span>
-  prev:address:duplex-list:character<span class="Special"> &lt;- </span>copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
+  curr:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get *editor, <span class="Constant">top-of-screen:offset</span>
+  prev:address:shared:duplex-list:character<span class="Special"> &lt;- </span>copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
   curr<span class="Special"> &lt;- </span>next curr
   <span class="Comment"># traversing screen</span>
 <span class="Constant">  +render-loop-initialization</span>
@@ -180,7 +182,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   column:number<span class="Special"> &lt;- </span>copy left
   cursor-row:address:number<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">cursor-row:offset</span>
   cursor-column:address:number<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">cursor-column:offset</span>
-  before-cursor:address:address:duplex-list:character<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">before-cursor:offset</span>
+  before-cursor:address:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">before-cursor:offset</span>
   screen<span class="Special"> &lt;- </span>move-cursor screen, row, column
   <span class="Delimiter">{</span>
 <span class="Constant">    +next-character</span>
@@ -228,7 +230,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
       at-right?:boolean<span class="Special"> &lt;- </span>equal column, right
       <span class="muControl">break-unless</span> at-right?
       <span class="Comment"># print wrap icon</span>
-      print screen, <span class="Constant">8617/loop-back-to-left</span>, <span class="Constant">245/grey</span>
+      wrap-icon:character<span class="Special"> &lt;- </span>copy <span class="Constant">8617/loop-back-to-left</span>
+      print screen, wrap-icon, <span class="Constant">245/grey</span>
       column<span class="Special"> &lt;- </span>copy left
       row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
       screen<span class="Special"> &lt;- </span>move-cursor screen, row, column
@@ -242,7 +245,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     <span class="muControl">loop</span>
   <span class="Delimiter">}</span>
   <span class="Comment"># save first character off-screen</span>
-  bottom-of-screen:address:address:duplex-list:character<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">bottom-of-screen:offset</span>
+  bottom-of-screen:address:address:shared:duplex-list:character<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">bottom-of-screen:offset</span>
   *bottom-of-screen<span class="Special"> &lt;- </span>copy curr
   <span class="Comment"># is cursor to the right of the last line? move to end</span>
   <span class="Delimiter">{</span>
@@ -256,22 +259,31 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
     *cursor-column<span class="Special"> &lt;- </span>copy column
     *before-cursor<span class="Special"> &lt;- </span>copy prev
   <span class="Delimiter">}</span>
+  bottom:address:number<span class="Special"> &lt;- </span>get-address *editor, <span class="Constant">bottom:offset</span>
+  *bottom<span class="Special"> &lt;- </span>copy row
   <span class="muControl">reply</span> row, column, screen/same-as-ingredient:<span class="Constant">0</span>, editor/same-as-ingredient:<span class="Constant">1</span>
 ]
 
-<span class="muRecipe">recipe</span> clear-line-delimited screen:address:screen, column:number, right:number<span class="muRecipe"> -&gt; </span>screen:address:screen [
+<span class="muRecipe">recipe</span> clear-line-delimited screen:address:shared:screen, column:number, right:number<span class="muRecipe"> -&gt; </span>screen:address:shared:screen [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
+  space:character<span class="Special"> &lt;- </span>copy <span class="Constant">32/space</span>
+  bg-color:number, bg-color-found?:boolean<span class="Special"> &lt;- </span><span class="Constant">next-ingredient</span>
+  <span class="Delimiter">{</span>
+    <span class="Comment"># default bg-color to black</span>
+    <span class="muControl">break-if</span> bg-color-found?
+    bg-color<span class="Special"> &lt;- </span>copy <span class="Constant">0/black</span>
+  <span class="Delimiter">}</span>
   <span class="Delimiter">{</span>
     done?:boolean<span class="Special"> &lt;- </span>greater-than column, right
     <span class="muControl">break-if</span> done?
-    screen<span class="Special"> &lt;- </span>print screen, <span class="Constant">32/space</span>
+    screen<span class="Special"> &lt;- </span>print screen, space, <span class="Constant">7/white</span>, bg-color  <span class="Comment"># foreground color is mostly unused except if the cursor shows up at this cell</span>
     column<span class="Special"> &lt;- </span>add column, <span class="Constant">1</span>
     <span class="muControl">loop</span>
   <span class="Delimiter">}</span>
 ]
 
-<span class="muRecipe">recipe</span> clear-screen-from screen:address:screen, row:number, column:number, left:number, right:number<span class="muRecipe"> -&gt; </span>screen:address:screen [
+<span class="muRecipe">recipe</span> clear-screen-from screen:address:shared:screen, row:number, column:number, left:number, right:number<span class="muRecipe"> -&gt; </span>screen:address:shared:screen [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   <span class="Comment"># if it's the real screen, use the optimized primitive</span>
@@ -287,7 +299,7 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
   <span class="muControl">reply</span> screen/same-as-ingredient:<span class="Constant">0</span>
 ]
 
-<span class="muRecipe">recipe</span> clear-rest-of-screen screen:address:screen, row:number, left:number, right:number<span class="muRecipe"> -&gt; </span>screen:address:screen [
+<span class="muRecipe">recipe</span> clear-rest-of-screen screen:address:shared:screen, row:number, left:number, right:number<span class="muRecipe"> -&gt; </span>screen:address:shared:screen [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
@@ -306,9 +318,9 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initially-prints-multiple-lines [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
 <span class="Constant">def]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -321,8 +333,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initially-handles-offsets [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">1/left</span>, <span class="Constant">5/right</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc]</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">1/left</span>, <span class="Constant">5/right</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -334,9 +346,9 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initially-prints-multiple-lines-at-offset [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
 <span class="Constant">def]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">1/left</span>, <span class="Constant">5/right</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">1/left</span>, <span class="Constant">5/right</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -349,8 +361,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initially-wraps-long-lines [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc def]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc def]</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -369,8 +381,8 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initially-wraps-barely-long-lines [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abcde]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abcde]</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
   ]
   <span class="Comment"># still wrap, even though the line would fit. We need room to click on the</span>
   <span class="Comment"># end of the line</span>
@@ -391,10 +403,10 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> editor-initializes-empty-text [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    <span class="Constant">1</span>:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[]</span>
-    <span class="Constant">2</span>:address:editor-data<span class="Special"> &lt;- </span>new-editor <span class="Constant">1</span>:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
-    <span class="Constant">3</span>:number<span class="Special"> &lt;- </span>get *<span class="Constant">2</span>:address:editor-data, <span class="Constant">cursor-row:offset</span>
-    <span class="Constant">4</span>:number<span class="Special"> &lt;- </span>get *<span class="Constant">2</span>:address:editor-data, <span class="Constant">cursor-column:offset</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:editor-data<span class="Special"> &lt;- </span>new-editor <span class="Constant">1</span>:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
+    <span class="Constant">3</span>:number<span class="Special"> &lt;- </span>get *<span class="Constant">2</span>:address:shared:editor-data, <span class="Constant">cursor-row:offset</span>
+    <span class="Constant">4</span>:number<span class="Special"> &lt;- </span>get *<span class="Constant">2</span>:address:shared:editor-data, <span class="Constant">cursor-column:offset</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -412,10 +424,10 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> render-colors-comments [
   assume-screen <span class="Constant">5/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
 <span class="Constant"># de</span>
 <span class="Constant">f]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">5/right</span>
   ]
   screen-should-contain [
    <span class="Constant"> .     .</span>
@@ -493,10 +505,10 @@ body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 <span class="muScenario">scenario</span> render-colors-assignment [
   assume-screen <span class="Constant">8/width</span>, <span class="Constant">5/height</span>
   run [
-    s:address:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
+    s:address:shared:array:character<span class="Special"> &lt;- </span>new <span class="Constant">[abc</span>
 <span class="Constant">d &lt;- e</span>
 <span class="Constant">f]</span>
-    new-editor s:address:array:character, screen:address:screen, <span class="Constant">0/left</span>, <span class="Constant">8/right</span>
+    new-editor s:address:shared:array:character, screen:address:shared:screen, <span class="Constant">0/left</span>, <span class="Constant">8/right</span>
   ]
   screen-should-contain [
    <span class="Constant"> .        .</span>