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authorKartik Agaram <vc@akkartik.com>2018-12-01 14:13:33 -0800
committerKartik Agaram <vc@akkartik.com>2018-12-01 14:13:33 -0800
commite4ac3c9e6e5464a0fc0f8fd3763a572e0e180c04 (patch)
tree7f6ca26afcdf8e3bf54459c6592ebf26fb968133 /html/082scenario_screen.cc.html
parent54e5128a14dcea5b93a8a9402558f0736fb7dba3 (diff)
downloadmu-e4ac3c9e6e5464a0fc0f8fd3763a572e0e180c04.tar.gz
4814
Diffstat (limited to 'html/082scenario_screen.cc.html')
-rw-r--r--html/082scenario_screen.cc.html129
1 files changed, 66 insertions, 63 deletions
diff --git a/html/082scenario_screen.cc.html b/html/082scenario_screen.cc.html
index 68c96f9a..918437cf 100644
--- a/html/082scenario_screen.cc.html
+++ b/html/082scenario_screen.cc.html
@@ -11,23 +11,25 @@
 <style type="text/css">
 <!--
 pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
-body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
-a { color:#eeeeee; text-decoration: none; }
-a:hover { text-decoration: underline; }
-* { font-size: 12pt; font-size: 1em; }
-.LineNr { color: #444444; }
-.Delimiter { color: #800080; }
+body { font-size:12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+.subxS2Comment a { color:inherit; }
+.subxS1Comment a { color:inherit; }
+.subxComment a { color:inherit; }
+.subxH2Comment a { color:inherit; }
+.subxH1Comment a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.LineNr { color:#444444; }
+.Delimiter { color:#800080; }
 .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
 .CommentedCode { color: #6c6c6c; }
 .traceAbsent { color: #c00000; }
 .muScenario { color: #00af00; }
 .muRecipe { color: #ff8700; }
-.Constant { color: #00a0a0; }
-.Special { color: #c00000; }
-.Identifier { color: #c0a020; }
+.Constant { color:#00a0a0; }
+.Special { color:#c00000; }
+.Identifier { color:#c0a020; }
 .cSpecial { color: #008000; }
-.Comment { color: #9090ff; }
-.Comment a { color:#0000ee; text-decoration:underline; }
+.Comment { color: #8080ff; }
 .traceContains { color: #008000; }
 -->
 </style>
@@ -62,6 +64,7 @@ if ('onhashchange' in window) {
 </script>
 </head>
 <body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/master/082scenario_screen.cc'>https://github.com/akkartik/mu/blob/master/082scenario_screen.cc</a>
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="Comment">//: Clean syntax to manipulate and check the screen in scenarios.</span>
 <span id="L2" class="LineNr">  2 </span><span class="Comment">//: Instructions 'assume-screen' and 'screen-should-contain' implicitly create</span>
@@ -203,10 +206,10 @@ if ('onhashchange' in window) {
 <span id="L138" class="LineNr">138 </span><span class="Comment">//: locations.</span>
 <span id="L139" class="LineNr">139 </span>
 <span id="L140" class="LineNr">140 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span id="L141" class="LineNr">141 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> Max_variables_in_scenarios = Reserved_for_tests-<span class="Constant">100</span><span class="Delimiter">;</span>
-<span id="L142" class="LineNr">142 </span><span class="Normal">int</span> Next_predefined_global_for_scenarios = Max_variables_in_scenarios<span class="Delimiter">;</span>
+<span id="L141" class="LineNr">141 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> <span class="Special">Max_variables_in_scenarios</span> = <span class="Special">Reserved_for_tests-100</span><span class="Delimiter">;</span>
+<span id="L142" class="LineNr">142 </span><span class="Normal">int</span> <span class="Special">Next_predefined_global_for_scenarios</span> = <span class="Special">Max_variables_in_scenarios</span><span class="Delimiter">;</span>
 <span id="L143" class="LineNr">143 </span><span class="Delimiter">:(before &quot;End Reset&quot;)</span>
-<span id="L144" class="LineNr">144 </span>assert<span class="Delimiter">(</span>Next_predefined_global_for_scenarios &lt; Reserved_for_tests<span class="Delimiter">);</span>
+<span id="L144" class="LineNr">144 </span>assert<span class="Delimiter">(</span><span class="Special">Next_predefined_global_for_scenarios</span> &lt; <span class="Special">Reserved_for_tests</span><span class="Delimiter">);</span>
 <span id="L145" class="LineNr">145 </span>
 <span id="L146" class="LineNr">146 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
 <span id="L147" class="LineNr">147 </span><span class="Comment">// Scenario Globals.</span>
@@ -214,14 +217,14 @@ if ('onhashchange' in window) {
 <span id="L149" class="LineNr">149 </span><span class="Comment">// End Scenario Globals.</span>
 <span id="L150" class="LineNr">150 </span><span class="Delimiter">:(code)</span>
 <span id="L151" class="LineNr">151 </span><span class="Normal">int</span> next_predefined_global_for_scenarios<span class="Delimiter">(</span><span class="Normal">int</span> size<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L152" class="LineNr">152 </span>  <span class="Normal">int</span> result = Next_predefined_global_for_scenarios<span class="Delimiter">;</span>
-<span id="L153" class="LineNr">153 </span>  Next_predefined_global_for_scenarios += size<span class="Delimiter">;</span>
+<span id="L152" class="LineNr">152 </span>  <span class="Normal">int</span> result = <span class="Special">Next_predefined_global_for_scenarios</span><span class="Delimiter">;</span>
+<span id="L153" class="LineNr">153 </span>  <span class="Special">Next_predefined_global_for_scenarios</span> += size<span class="Delimiter">;</span>
 <span id="L154" class="LineNr">154 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
 <span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span>
 <span id="L156" class="LineNr">156 </span>
 <span id="L157" class="LineNr">157 </span><span class="Comment">//: give 'screen' a fixed location in scenarios</span>
 <span id="L158" class="LineNr">158 </span><span class="Delimiter">:(before &quot;End Special Scenario Variable Names(r)&quot;)</span>
-<span id="L159" class="LineNr">159 </span>Name[r][<span class="Constant">&quot;screen&quot;</span>] = SCREEN<span class="Delimiter">;</span>
+<span id="L159" class="LineNr">159 </span><span class="Special">Name</span>[r][<span class="Constant">&quot;screen&quot;</span>] = SCREEN<span class="Delimiter">;</span>
 <span id="L160" class="LineNr">160 </span><span class="Comment">//: make 'screen' always a raw location in scenarios</span>
 <span id="L161" class="LineNr">161 </span><span class="Delimiter">:(before &quot;End <a href='042name.cc.html#L172'>is_special_name</a> Special-cases&quot;)</span>
 <span id="L162" class="LineNr">162 </span><span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
@@ -232,10 +235,10 @@ if ('onhashchange' in window) {
 <span id="L167" class="LineNr">167 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;assume-screen&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L168" class="LineNr">168 </span>  curr<span class="Delimiter">.</span>name = <span class="Constant">&quot;new-fake-screen&quot;</span><span class="Delimiter">;</span>
 <span id="L169" class="LineNr">169 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L170" class="LineNr">170 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: 'assume-screen' has no products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L170" class="LineNr">170 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: 'assume-screen' has no products\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L171" class="LineNr">171 </span>  <span class="Delimiter">}</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span>result<span class="Delimiter">.</span>name<span class="Delimiter">,</span> <span class="Constant">&quot;scenario_&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L173" class="LineNr">173 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: 'assume-screen' can't be called here, only in scenarios</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L173" class="LineNr">173 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: 'assume-screen' can't be called here, only in scenarios\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L174" class="LineNr">174 </span>  <span class="Delimiter">}</span>
 <span id="L175" class="LineNr">175 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
 <span id="L176" class="LineNr">176 </span>    assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
@@ -255,22 +258,22 @@ if ('onhashchange' in window) {
 <span id="L190" class="LineNr">190 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L191" class="LineNr">191 </span>SCREEN_SHOULD_CONTAIN<span class="Delimiter">,</span>
 <span id="L192" class="LineNr">192 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L193" class="LineNr">193 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen-should-contain&quot;</span><span class="Delimiter">,</span> SCREEN_SHOULD_CONTAIN<span class="Delimiter">);</span>
+<span id="L193" class="LineNr">193 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;screen-should-contain&quot;</span><span class="Delimiter">,</span> SCREEN_SHOULD_CONTAIN<span class="Delimiter">);</span>
 <span id="L194" class="LineNr">194 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L195" class="LineNr">195 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
 <span id="L196" class="LineNr">196 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L197" class="LineNr">197 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L197" class="LineNr">197 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L198" class="LineNr">198 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L199" class="LineNr">199 </span>  <span class="Delimiter">}</span>
 <span id="L200" class="LineNr">200 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L201" class="LineNr">201 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'screen-should-contain' should be a literal string, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L201" class="LineNr">201 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'screen-should-contain' should be a literal string, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L202" class="LineNr">202 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Delimiter">}</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L205" class="LineNr">205 </span><span class="Delimiter">}</span>
 <span id="L206" class="LineNr">206 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L207" class="LineNr">207 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
-<span id="L208" class="LineNr">208 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+<span id="L208" class="LineNr">208 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Passed</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L209" class="LineNr">209 </span>  assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)));</span>
 <span id="L210" class="LineNr">210 </span>  check_screen<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">,</span> -<span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L211" class="LineNr">211 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -279,26 +282,26 @@ if ('onhashchange' in window) {
 <span id="L214" class="LineNr">214 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L215" class="LineNr">215 </span>SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">,</span>
 <span id="L216" class="LineNr">216 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L217" class="LineNr">217 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen-should-contain-in-color&quot;</span><span class="Delimiter">,</span> SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">);</span>
+<span id="L217" class="LineNr">217 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;screen-should-contain-in-color&quot;</span><span class="Delimiter">,</span> SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">);</span>
 <span id="L218" class="LineNr">218 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L219" class="LineNr">219 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
 <span id="L220" class="LineNr">220 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L221" class="LineNr">221 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain-in-color' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L221" class="LineNr">221 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain-in-color' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L222" class="LineNr">222 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L223" class="LineNr">223 </span>  <span class="Delimiter">}</span>
 <span id="L224" class="LineNr">224 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L225" class="LineNr">225 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'screen-should-contain-in-color' should be a number (color code), but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L225" class="LineNr">225 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'screen-should-contain-in-color' should be a number (color code), but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L226" class="LineNr">226 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L227" class="LineNr">227 </span>  <span class="Delimiter">}</span>
 <span id="L228" class="LineNr">228 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L229" class="LineNr">229 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of 'screen-should-contain-in-color' should be a literal string, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L229" class="LineNr">229 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of 'screen-should-contain-in-color' should be a literal string, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L230" class="LineNr">230 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L231" class="LineNr">231 </span>  <span class="Delimiter">}</span>
 <span id="L232" class="LineNr">232 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L233" class="LineNr">233 </span><span class="Delimiter">}</span>
 <span id="L234" class="LineNr">234 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L235" class="LineNr">235 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
-<span id="L236" class="LineNr">236 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+<span id="L236" class="LineNr">236 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Passed</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L237" class="LineNr">237 </span>  assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)));</span>
 <span id="L238" class="LineNr">238 </span>  assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)));</span>
 <span id="L239" class="LineNr">239 </span>  check_screen<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name<span class="Delimiter">,</span> ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
@@ -321,24 +324,24 @@ if ('onhashchange' in window) {
 <span id="L256" class="LineNr">256 </span>
 <span id="L257" class="LineNr">257 </span><span class="Delimiter">:(code)</span>
 <span id="L258" class="LineNr">258 </span><span class="Normal">void</span> check_screen<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; expected_contents<span class="Delimiter">,</span> <span class="Normal">const</span> <span class="Normal">int</span> color<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L259" class="LineNr">259 </span>  <span class="Normal">int</span> screen_location = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> SCREEN+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
+<span id="L259" class="LineNr">259 </span>  <span class="Normal">int</span> screen_location = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> SCREEN+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
 <span id="L260" class="LineNr">260 </span>  reagent screen<span class="Delimiter">(</span><span class="Constant">&quot;x:screen&quot;</span><span class="Delimiter">);</span>  <span class="Comment">// just to ensure screen.type is reclaimed</span>
 <span id="L261" class="LineNr">261 </span>  <span class="Normal">int</span> screen_data_location = <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;data&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>  <span class="Comment">// type: address:array:character</span>
 <span id="L262" class="LineNr">262 </span>  assert<span class="Delimiter">(</span>screen_data_location &gt;= <span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L263" class="LineNr">263 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen data is at location &quot; &lt;&lt; screen_data_location &lt;&lt; '\n';</span>
-<span id="L264" class="LineNr">264 </span>  <span class="Normal">int</span> screen_data_start = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_location+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// type: array:character</span>
+<span id="L264" class="LineNr">264 </span>  <span class="Normal">int</span> screen_data_start = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> screen_data_location+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// type: array:character</span>
 <span id="L265" class="LineNr">265 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen data start is at &quot; &lt;&lt; screen_data_start &lt;&lt; '\n';</span>
 <span id="L266" class="LineNr">266 </span>  <span class="Normal">int</span> screen_width_location = <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;num-columns&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>
 <span id="L267" class="LineNr">267 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen width is at location &quot; &lt;&lt; screen_width_location &lt;&lt; '\n';</span>
-<span id="L268" class="LineNr">268 </span>  <span class="Normal">int</span> screen_width = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_width_location<span class="Delimiter">);</span>
+<span id="L268" class="LineNr">268 </span>  <span class="Normal">int</span> screen_width = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> screen_width_location<span class="Delimiter">);</span>
 <span id="L269" class="LineNr">269 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen width: &quot; &lt;&lt; screen_width &lt;&lt; '\n';</span>
 <span id="L270" class="LineNr">270 </span>  <span class="Normal">int</span> screen_height_location = <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;num-rows&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>
 <span id="L271" class="LineNr">271 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen height is at location &quot; &lt;&lt; screen_height_location &lt;&lt; '\n';</span>
-<span id="L272" class="LineNr">272 </span>  <span class="Normal">int</span> screen_height = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_height_location<span class="Delimiter">);</span>
+<span id="L272" class="LineNr">272 </span>  <span class="Normal">int</span> screen_height = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> screen_height_location<span class="Delimiter">);</span>
 <span id="L273" class="LineNr">273 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen height: &quot; &lt;&lt; screen_height &lt;&lt; '\n';</span>
 <span id="L274" class="LineNr">274 </span>  <span class="Normal">int</span> top_index_location= <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;top-idx&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>
 <span id="L275" class="LineNr">275 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;top of screen is at location &quot; &lt;&lt; top_index_location &lt;&lt; '\n';</span>
-<span id="L276" class="LineNr">276 </span>  <span class="Normal">int</span> top_index = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> top_index_location<span class="Delimiter">);</span>
+<span id="L276" class="LineNr">276 </span>  <span class="Normal">int</span> top_index = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> top_index_location<span class="Delimiter">);</span>
 <span id="L277" class="LineNr">277 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;top of screen is index &quot; &lt;&lt; top_index &lt;&lt; '\n';</span>
 <span id="L278" class="LineNr">278 </span>  raw_string_stream cursor<span class="Delimiter">(</span>expected_contents<span class="Delimiter">);</span>
 <span id="L279" class="LineNr">279 </span>  <span class="Comment">// todo: too-long expected_contents should fail</span>
@@ -346,26 +349,26 @@ if ('onhashchange' in window) {
 <span id="L281" class="LineNr">281 </span>    cursor<span class="Delimiter">.</span><a href='011load.cc.html#L211'>skip_whitespace_and_comments</a><span class="Delimiter">();</span>
 <span id="L282" class="LineNr">282 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>at_end<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L283" class="LineNr">283 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>get<span class="Delimiter">()</span> != <span class="Constant">'.'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L284" class="LineNr">284 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;each row of the expected screen should start with a '.'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
-<span id="L285" class="LineNr">285 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> Passed =<span class="Constant"> false</span><span class="Delimiter">;</span>
+<span id="L284" class="LineNr">284 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;each row of the expected screen should start with a '.'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L285" class="LineNr">285 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Scenario_testing_scenario</span><span class="Delimiter">)</span> <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
 <span id="L286" class="LineNr">286 </span>      <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L287" class="LineNr">287 </span>    <span class="Delimiter">}</span>
 <span id="L288" class="LineNr">288 </span>    <span class="Normal">int</span> addr = screen_data_start+<span class="Comment">/*</span><span class="Comment">length</span><span class="Comment">*/</span><span class="Constant">1</span>+row*screen_width* <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span>
 <span id="L289" class="LineNr">289 </span>    <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> column = <span class="Constant">0</span><span class="Delimiter">;</span>  column &lt; screen_width<span class="Delimiter">;</span>  ++column<span class="Delimiter">,</span> addr+= <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L290" class="LineNr">290 </span>      <span class="Normal">const</span> <span class="Normal">int</span> cell_color_offset = <span class="Constant">1</span><span class="Delimiter">;</span>
 <span id="L291" class="LineNr">291 </span>      <span class="Normal">uint32_t</span> curr = cursor<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
-<span id="L292" class="LineNr">292 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> == <span class="Constant">0</span> &amp;&amp; isspace<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L293" class="LineNr">293 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>curr == <span class="Constant">' '</span> &amp;&amp; color != -<span class="Constant">1</span> &amp;&amp; color != <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<span id="L292" class="LineNr">292 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">)</span> == <span class="Constant">0</span> &amp;&amp; isspace<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L293" class="LineNr">293 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>curr == <span class="Constant">' '</span> &amp;&amp; color != -<span class="Constant">1</span> &amp;&amp; color != <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span id="L294" class="LineNr">294 </span>        <span class="Comment">// filter out other colors</span>
 <span id="L295" class="LineNr">295 </span>        <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L296" class="LineNr">296 </span>      <span class="Delimiter">}</span>
-<span id="L297" class="LineNr">297 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> != <span class="Constant">0</span> &amp;&amp; <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> == curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L298" class="LineNr">298 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>color == -<span class="Constant">1</span> || color == <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L297" class="LineNr">297 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">)</span> != <span class="Constant">0</span> &amp;&amp; <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">)</span> == curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L298" class="LineNr">298 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>color == -<span class="Constant">1</span> || color == <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L299" class="LineNr">299 </span>        <span class="Comment">// contents match but color is off</span>
-<span id="L300" class="LineNr">300 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>!Hide_errors<span class="Delimiter">)</span> cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L301" class="LineNr">301 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;F - &quot;</span> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected screen location (&quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; column &lt;&lt; <span class="Constant">&quot;) to contain '&quot;</span> &lt;&lt; unicode_character_at<span class="Delimiter">(</span>addr<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' in color &quot;</span> &lt;&lt; color &lt;&lt; <span class="Constant">&quot; instead of &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
-<span id="L302" class="LineNr">302 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>!Hide_errors<span class="Delimiter">)</span> dump_screen<span class="Delimiter">();</span>
-<span id="L303" class="LineNr">303 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> Passed =<span class="Constant"> false</span><span class="Delimiter">;</span>
+<span id="L300" class="LineNr">300 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Hide_errors</span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L301" class="LineNr">301 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;F - &quot;</span> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected screen location (&quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; column &lt;&lt; <span class="Constant">&quot;) to contain '&quot;</span> &lt;&lt; unicode_character_at<span class="Delimiter">(</span>addr<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' in color &quot;</span> &lt;&lt; color &lt;&lt; <span class="Constant">&quot; instead of &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L302" class="LineNr">302 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Hide_errors</span><span class="Delimiter">)</span> dump_screen<span class="Delimiter">();</span>
+<span id="L303" class="LineNr">303 </span>        <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Scenario_testing_scenario</span><span class="Delimiter">)</span> <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
 <span id="L304" class="LineNr">304 </span>        <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L305" class="LineNr">305 </span>      <span class="Delimiter">}</span>
 <span id="L306" class="LineNr">306 </span>
@@ -377,34 +380,34 @@ if ('onhashchange' in window) {
 <span id="L312" class="LineNr">312 </span>        expected_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">3</span>] = <span class="Normal">static_cast</span>&lt;<span class="Normal">unsigned</span> <span class="Normal">char</span>&gt;<span class="Delimiter">(</span>curr<span class="Delimiter">),</span> expected_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
 <span id="L313" class="LineNr">313 </span>      <span class="Delimiter">}</span>
 <span id="L314" class="LineNr">314 </span>      <span class="Normal">char</span> actual_pretty[<span class="Constant">10</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span>
-<span id="L315" class="LineNr">315 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> &lt; <span class="Constant">256</span> &amp;&amp; !iscntrl<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<span id="L315" class="LineNr">315 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">)</span> &lt; <span class="Constant">256</span> &amp;&amp; !iscntrl<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
 <span id="L316" class="LineNr">316 </span>        <span class="Comment">// &quot; ('&lt;curr&gt;')&quot;</span>
-<span id="L317" class="LineNr">317 </span>        actual_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">3</span>] = <span class="Normal">static_cast</span>&lt;<span class="Normal">unsigned</span> <span class="Normal">char</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)),</span> actual_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
+<span id="L317" class="LineNr">317 </span>        actual_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">3</span>] = <span class="Normal">static_cast</span>&lt;<span class="Normal">unsigned</span> <span class="Normal">char</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">)),</span> actual_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
 <span id="L318" class="LineNr">318 </span>      <span class="Delimiter">}</span>
 <span id="L319" class="LineNr">319 </span>
 <span id="L320" class="LineNr">320 </span>      ostringstream color_phrase<span class="Delimiter">;</span>
 <span id="L321" class="LineNr">321 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>color != -<span class="Constant">1</span><span class="Delimiter">)</span> color_phrase &lt;&lt; <span class="Constant">&quot; in color &quot;</span> &lt;&lt; color<span class="Delimiter">;</span>
-<span id="L322" class="LineNr">322 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!Hide_errors<span class="Delimiter">)</span> cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L323" class="LineNr">323 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;F - &quot;</span> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected screen location (&quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; column &lt;&lt; <span class="Constant">&quot;) to contain &quot;</span> &lt;&lt; curr &lt;&lt; expected_pretty &lt;&lt; color_phrase<span class="Delimiter">.</span>str<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot; instead of &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> &lt;&lt; actual_pretty &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
-<span id="L324" class="LineNr">324 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!Hide_errors<span class="Delimiter">)</span> dump_screen<span class="Delimiter">();</span>
-<span id="L325" class="LineNr">325 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> Passed =<span class="Constant"> false</span><span class="Delimiter">;</span>
+<span id="L322" class="LineNr">322 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Hide_errors</span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L323" class="LineNr">323 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;F - &quot;</span> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected screen location (&quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; column &lt;&lt; <span class="Constant">&quot;) to contain &quot;</span> &lt;&lt; curr &lt;&lt; expected_pretty &lt;&lt; color_phrase<span class="Delimiter">.</span>str<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot; instead of &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">))</span> &lt;&lt; actual_pretty &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L324" class="LineNr">324 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Hide_errors</span><span class="Delimiter">)</span> dump_screen<span class="Delimiter">();</span>
+<span id="L325" class="LineNr">325 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Scenario_testing_scenario</span><span class="Delimiter">)</span> <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
 <span id="L326" class="LineNr">326 </span>      <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L327" class="LineNr">327 </span>    <span class="Delimiter">}</span>
 <span id="L328" class="LineNr">328 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>get<span class="Delimiter">()</span> != <span class="Constant">'.'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L329" class="LineNr">329 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;row &quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot; of the expected screen is too long</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
-<span id="L330" class="LineNr">330 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> Passed =<span class="Constant"> false</span><span class="Delimiter">;</span>
+<span id="L329" class="LineNr">329 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;row &quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot; of the expected screen is too long\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L330" class="LineNr">330 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Scenario_testing_scenario</span><span class="Delimiter">)</span> <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
 <span id="L331" class="LineNr">331 </span>      <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L332" class="LineNr">332 </span>    <span class="Delimiter">}</span>
 <span id="L333" class="LineNr">333 </span>  <span class="Delimiter">}</span>
 <span id="L334" class="LineNr">334 </span>  cursor<span class="Delimiter">.</span><a href='011load.cc.html#L211'>skip_whitespace_and_comments</a><span class="Delimiter">();</span>
 <span id="L335" class="LineNr">335 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!cursor<span class="Delimiter">.</span>at_end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L336" class="LineNr">336 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected screen has too many rows</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
-<span id="L337" class="LineNr">337 </span>    Passed =<span class="Constant"> false</span><span class="Delimiter">;</span>
+<span id="L336" class="LineNr">336 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected screen has too many rows\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L337" class="LineNr">337 </span>    <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
 <span id="L338" class="LineNr">338 </span>  <span class="Delimiter">}</span>
 <span id="L339" class="LineNr">339 </span><span class="Delimiter">}</span>
 <span id="L340" class="LineNr">340 </span>
 <span id="L341" class="LineNr">341 </span><span class="Normal">const</span> <span class="Normal">char</span>* unicode_character_at<span class="Delimiter">(</span><span class="Normal">int</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L342" class="LineNr">342 </span>  <span class="Normal">int</span> unicode_code_point = <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">));</span>
+<span id="L342" class="LineNr">342 </span>  <span class="Normal">int</span> unicode_code_point = <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> addr<span class="Delimiter">));</span>
 <span id="L343" class="LineNr">343 </span>  <span class="Identifier">return</span> to_unicode<span class="Delimiter">(</span>unicode_code_point<span class="Delimiter">);</span>
 <span id="L344" class="LineNr">344 </span><span class="Delimiter">}</span>
 <span id="L345" class="LineNr">345 </span>
@@ -451,7 +454,7 @@ if ('onhashchange' in window) {
 <span id="L386" class="LineNr">386 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L387" class="LineNr">387 </span>_DUMP_SCREEN<span class="Delimiter">,</span>
 <span id="L388" class="LineNr">388 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L389" class="LineNr">389 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$dump-screen&quot;</span><span class="Delimiter">,</span> _DUMP_SCREEN<span class="Delimiter">);</span>
+<span id="L389" class="LineNr">389 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;$dump-screen&quot;</span><span class="Delimiter">,</span> _DUMP_SCREEN<span class="Delimiter">);</span>
 <span id="L390" class="LineNr">390 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L391" class="LineNr">391 </span><span class="Normal">case</span> _DUMP_SCREEN: <span class="Delimiter">{</span>
 <span id="L392" class="LineNr">392 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -464,36 +467,36 @@ if ('onhashchange' in window) {
 <span id="L399" class="LineNr">399 </span>
 <span id="L400" class="LineNr">400 </span><span class="Delimiter">:(code)</span>
 <span id="L401" class="LineNr">401 </span><span class="Normal">void</span> dump_screen<span class="Delimiter">()</span> <span class="Delimiter">{</span>
-<span id="L402" class="LineNr">402 </span>  <span class="Normal">int</span> screen_location = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> SCREEN+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
+<span id="L402" class="LineNr">402 </span>  <span class="Normal">int</span> screen_location = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> SCREEN+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
 <span id="L403" class="LineNr">403 </span>  reagent screen<span class="Delimiter">(</span><span class="Constant">&quot;x:screen&quot;</span><span class="Delimiter">);</span>  <span class="Comment">// just to ensure screen.type is reclaimed</span>
 <span id="L404" class="LineNr">404 </span>  <span class="Normal">int</span> screen_data_location = <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;data&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>  <span class="Comment">// type: address:array:character</span>
 <span id="L405" class="LineNr">405 </span>  assert<span class="Delimiter">(</span>screen_data_location &gt;= <span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L406" class="LineNr">406 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen data is at location &quot; &lt;&lt; screen_data_location &lt;&lt; '\n';</span>
-<span id="L407" class="LineNr">407 </span>  <span class="Normal">int</span> screen_data_start = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_location+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// type: array:character</span>
+<span id="L407" class="LineNr">407 </span>  <span class="Normal">int</span> screen_data_start = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> screen_data_location+<span class="Comment">/*</span><span class="Comment">skip <a href='043space.cc.html#L101'>address</a> alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip payload alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// type: array:character</span>
 <span id="L408" class="LineNr">408 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen data start is at &quot; &lt;&lt; screen_data_start &lt;&lt; '\n';</span>
 <span id="L409" class="LineNr">409 </span>  <span class="Normal">int</span> screen_width_location = <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;num-columns&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>
 <span id="L410" class="LineNr">410 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen width is at location &quot; &lt;&lt; screen_width_location &lt;&lt; '\n';</span>
-<span id="L411" class="LineNr">411 </span>  <span class="Normal">int</span> screen_width = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_width_location<span class="Delimiter">);</span>
+<span id="L411" class="LineNr">411 </span>  <span class="Normal">int</span> screen_width = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> screen_width_location<span class="Delimiter">);</span>
 <span id="L412" class="LineNr">412 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen width: &quot; &lt;&lt; screen_width &lt;&lt; '\n';</span>
 <span id="L413" class="LineNr">413 </span>  <span class="Normal">int</span> screen_height_location = <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;num-rows&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>
 <span id="L414" class="LineNr">414 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen height is at location &quot; &lt;&lt; screen_height_location &lt;&lt; '\n';</span>
-<span id="L415" class="LineNr">415 </span>  <span class="Normal">int</span> screen_height = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_height_location<span class="Delimiter">);</span>
+<span id="L415" class="LineNr">415 </span>  <span class="Normal">int</span> screen_height = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> screen_height_location<span class="Delimiter">);</span>
 <span id="L416" class="LineNr">416 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;screen height: &quot; &lt;&lt; screen_height &lt;&lt; '\n';</span>
 <span id="L417" class="LineNr">417 </span>  <span class="Normal">int</span> top_index_location= <a href='042name.cc.html#L148'>find_element_location</a><span class="Delimiter">(</span>screen_location<span class="Delimiter">,</span> <span class="Constant">&quot;top-idx&quot;</span><span class="Delimiter">,</span> screen<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">&quot;check_screen&quot;</span><span class="Delimiter">);</span>
 <span id="L418" class="LineNr">418 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;top of screen is at location &quot; &lt;&lt; top_index_location &lt;&lt; '\n';</span>
-<span id="L419" class="LineNr">419 </span>  <span class="Normal">int</span> top_index = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> top_index_location<span class="Delimiter">);</span>
+<span id="L419" class="LineNr">419 </span>  <span class="Normal">int</span> top_index = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> top_index_location<span class="Delimiter">);</span>
 <span id="L420" class="LineNr">420 </span><span class="CommentedCode">//?   cerr &lt;&lt; &quot;top of screen is index &quot; &lt;&lt; top_index &lt;&lt; '\n';</span>
 <span id="L421" class="LineNr">421 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i=<span class="Constant">0</span><span class="Delimiter">,</span> row=top_index/screen_width<span class="Delimiter">;</span>  i &lt; screen_height<span class="Delimiter">;</span>  ++i<span class="Delimiter">,</span> row=<span class="Delimiter">(</span>row+<span class="Constant">1</span><span class="Delimiter">)</span>%screen_height<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L422" class="LineNr">422 </span>    cerr &lt;&lt; <span class="Constant">'.'</span><span class="Delimiter">;</span>
 <span id="L423" class="LineNr">423 </span>    <span class="Normal">int</span> curr = screen_data_start+<span class="Comment">/*</span><span class="Comment">length</span><span class="Comment">*/</span><span class="Constant">1</span>+row*screen_width* <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span>
 <span id="L424" class="LineNr">424 </span>    <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> col = <span class="Constant">0</span><span class="Delimiter">;</span>  col &lt; screen_width<span class="Delimiter">;</span>  ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L425" class="LineNr">425 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">))</span>
-<span id="L426" class="LineNr">426 </span>        cerr &lt;&lt; to_unicode<span class="Delimiter">(</span><span class="Normal">static_cast</span>&lt;<span class="Normal">uint32_t</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">)));</span>
+<span id="L425" class="LineNr">425 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> curr<span class="Delimiter">))</span>
+<span id="L426" class="LineNr">426 </span>        cerr &lt;&lt; to_unicode<span class="Delimiter">(</span><span class="Normal">static_cast</span>&lt;<span class="Normal">uint32_t</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> curr<span class="Delimiter">)));</span>
 <span id="L427" class="LineNr">427 </span>      <span class="Normal">else</span>
 <span id="L428" class="LineNr">428 </span>        cerr &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
 <span id="L429" class="LineNr">429 </span>      curr += <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span>
 <span id="L430" class="LineNr">430 </span>    <span class="Delimiter">}</span>
-<span id="L431" class="LineNr">431 </span>    cerr &lt;&lt; <span class="Constant">&quot;.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
+<span id="L431" class="LineNr">431 </span>    cerr &lt;&lt; <span class="Constant">&quot;.\n&quot;</span><span class="Delimiter">;</span>
 <span id="L432" class="LineNr">432 </span>  <span class="Delimiter">}</span>
 <span id="L433" class="LineNr">433 </span><span class="Delimiter">}</span>
 </pre>