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.TH DWM 1 dwm-VERSION
.SH NAME
dwm \- dynamic window manager
.SH SYNOPSIS
.B dwm
.RB [ \-v ]
.SH DESCRIPTION
.B dwm
is a dynamic window manager for X11. It manages windows in tiling and floating
modes. Either mode can be applied dynamically, optimizing the environment for
the application in use and the task performed.
.P
In tiling mode windows are managed in a master and stacking column. The master
column contains the window which currently needs most attention, whereas the
stacking column contains all other windows. In floating mode windows can be
resized and moved freely. Dialog windows are always managed floating,
regardless of the mode selected.
.P
Windows are grouped by tags. Each window can be tagged with one or multiple
tags. Selecting a certain tag for viewing will display all windows with that
tag.
.P
.B dwm
has a small status bar which displays the text read from standard
input, if written. Besides that, it displays all available tags, and the title
of the focused window. It draws a 1-pixel border around windows to
indicate the focus state. Unfocused windows contain a small bar in front of
them displaying their tags and title.
.SH OPTIONS
.TP
.B \-v
prints version information to standard output, then exits.
.SH USAGE
.SS Status bar
.TP
.B Standard input
is read and displayed in the status text area.
.TP
.B Button[1,2]
click on a tag label focuses that
.B tag.
.TP
.B Button3
click on a tag label toggles that
.B tag.
.SS Keyboard commands
.TP
.B Mod1-Return
Zoom current
.B window
to the 
.B master
column.
.TP
.B Mod1-j
Focus next
.B window.
.TP
.B Mod1-k
Focus previous
.B window.
.TP
.B Mod1-m
Maximize current
.B window.
.TP
.B Mod1-[0..n]
Focus
.B nth tag.
.TP
.B Mod1-space
Toggle between
.B tiled
and
.B floating
mode (affects
.BR "all windows" ).
.TP
.B Mod1-Shift-[0..n]
Apply
.B nth tag
to current
.B window.
.TP
.B Mod1-Shift-c
Close focused
.B window.
.TP
.B Mod1-Shift-q
Quit
.B dwm.
.TP
.B Mod1-Shift-Return
Start
.B terminal.
.TP
.B Mod1-Control-[0..n]
Toggle
.B nth tag.
.TP
.B Mod1-Control-Shift-[0..n]
Append
.B nth tag
to current
.B window.
.SS Mouse commands
.TP
.B Mod1-Button1
Move current
.B window
while dragging.
.TP
.B Mod1-Button2
Zoom current
.B window
to the 
.B master
column.
.TP
.B Mod1-Button3
Resize current
.B window
while dragging.
.SH CUSTOMIZATION
.B dwm
is customized by creating a custom config.h and (re)compiling the source
code. This keeps it fast, secure and simple.
.SH CAVEATS
The status bar displays
.BR "broken pipe"
when
.B dwm
has been started by
.BR xdm (1),
because it closes standard output before executing
.B dwm.
.SH SEE ALSO
.BR dmenu (1)
adding-right: 5px; } span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; } td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; } span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; } .highlight .hll { background-color: #ffffcc } .highlight .c { color: #888888 } /* Comment */ .highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
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<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>
<span id="L3" class="LineNr">  3 </span><span class="Comment">//: a variable called 'screen' that is accessible to later instructions in the</span>
<span id="L4" class="LineNr">  4 </span><span class="Comment">//: scenario. 'screen-should-contain' can check unicode characters in the fake</span>
<span id="L5" class="LineNr">  5 </span><span class="Comment">//: screen</span>
<span id="L6" class="LineNr">  6 </span>
<span id="L7" class="LineNr">  7 </span><span class="Comment">//: first make sure we don't mangle these functions in other transforms</span>
<span id="L8" class="LineNr">  8 </span><span class="Delimiter">:(before &quot;End initialize_transform_rewrite_literal_string_to_text()&quot;)</span>
<span id="L9" class="LineNr">  9 </span>recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;screen-should-contain&quot;</span><span class="Delimiter">);</span>
<span id="L10" class="LineNr"> 10 </span>recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;screen-should-contain-in-color&quot;</span><span class="Delimiter">);</span>
<span id="L11" class="LineNr"> 11 </span>
<span id="L12" class="LineNr"> 12 </span><span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(scenario screen_in_scenario)</span>
<span id="L14" class="LineNr"> 14 </span><span class="muScenario"><a href='050scenario.cc.html#L57'>scenario</a></span> screen-in-scenario [
<span id="L15" class="LineNr"> 15 </span>  local-scope
<span id="L16" class="LineNr"> 16 </span>  assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
<span id="L17" class="LineNr"> 17 </span>  run [
<span id="L18" class="LineNr"> 18 </span>  <span class="Conceal">¦</span> <span class="Normal">a</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">97</span>/a
<span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> a
<span id="L20" class="LineNr"> 20 </span>  ]
<span id="L21" class="LineNr"> 21 </span>  screen-should-contain [
<span id="L22" class="LineNr"> 22 </span>  <span class="Comment">#  01234</span>
<span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>a    <span class="Delimiter">.</span>
<span id="L24" class="LineNr"> 24 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L25" class="LineNr"> 25 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L26" class="LineNr"> 26 </span>  ]
<span id="L27" class="LineNr"> 27 </span>]
<span id="L28" class="LineNr"> 28 </span><span class="Comment"># checks are inside scenario</span>
<span id="L29" class="LineNr"> 29 </span>
<span id="L30" class="LineNr"> 30 </span><span class="Delimiter">:(scenario screen_in_scenario_unicode)</span>
<span id="L31" class="LineNr"> 31 </span><span class="Comment"># screen-should-contain can check unicode characters in the fake screen</span>
<span id="L32" class="LineNr"> 32 </span><span class="muScenario"><a href='050scenario.cc.html#L57'>scenario</a></span> screen-in-scenario-unicode [
<span id="L33" class="LineNr"> 33 </span>  local-scope
<span id="L34" class="LineNr"> 34 </span>  assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
<span id="L35" class="LineNr"> 35 </span>  run [
<span id="L36" class="LineNr"> 36 </span>  <span class="Conceal">¦</span> <span class="Normal">lambda</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">955</span>/greek-small-lambda
<span id="L37" class="LineNr"> 37 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> lambda
<span id="L38" class="LineNr"> 38 </span>  <span class="Conceal">¦</span> <span class="Normal">a</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">97</span>/a
<span id="L39" class="LineNr"> 39 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> a
<span id="L40" class="LineNr"> 40 </span>  ]
<span id="L41" class="LineNr"> 41 </span>  screen-should-contain [
<span id="L42" class="LineNr"> 42 </span>  <span class="Comment">#  01234</span>
<span id="L43" class="LineNr"> 43 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>λa   <span class="Delimiter">.</span>
<span id="L44" class="LineNr"> 44 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L46" class="LineNr"> 46 </span>  ]
<span id="L47" class="LineNr"> 47 </span>]
<span id="L48" class="LineNr"> 48 </span><span class="Comment"># checks are inside scenario</span>
<span id="L49" class="LineNr"> 49 </span>
<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">:(scenario screen_in_scenario_color)</span>
<span id="L51" class="LineNr"> 51 </span><span class="muScenario"><a href='050scenario.cc.html#L57'>scenario</a></span> screen-in-scenario-color [
<span id="L52" class="LineNr"> 52 </span>  local-scope
<span id="L53" class="LineNr"> 53 </span>  assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
<span id="L54" class="LineNr"> 54 </span>  run [
<span id="L55" class="LineNr"> 55 </span>  <span class="Conceal">¦</span> <span class="Normal">lambda</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">955</span>/greek-small-lambda
<span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> lambda<span class="Delimiter">,</span> <span class="Constant">1</span>/red
<span id="L57" class="LineNr"> 57 </span>  <span class="Conceal">¦</span> <span class="Normal">a</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">97</span>/a
<span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> a<span class="Delimiter">,</span> <span class="Constant">7</span>/white
<span id="L59" class="LineNr"> 59 </span>  ]
<span id="L60" class="LineNr"> 60 </span>  <span class="Comment"># screen-should-contain shows everything</span>
<span id="L61" class="LineNr"> 61 </span>  screen-should-contain [
<span id="L62" class="LineNr"> 62 </span>  <span class="Comment">#  01234</span>
<span id="L63" class="LineNr"> 63 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>λa   <span class="Delimiter">.</span>
<span id="L64" class="LineNr"> 64 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L66" class="LineNr"> 66 </span>  ]
<span id="L67" class="LineNr"> 67 </span>  <span class="Comment"># screen-should-contain-in-color filters out everything except the given</span>
<span id="L68" class="LineNr"> 68 </span>  <span class="Comment"># color, all you see is the 'a' in white.</span>
<span id="L69" class="LineNr"> 69 </span>  screen-should-contain-in-color <span class="Constant">7</span>/white<span class="Delimiter">,</span> [
<span id="L70" class="LineNr"> 70 </span>  <span class="Comment">#  01234</span>
<span id="L71" class="LineNr"> 71 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span> a   <span class="Delimiter">.</span>
<span id="L72" class="LineNr"> 72 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L73" class="LineNr"> 73 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L74" class="LineNr"> 74 </span>  ]
<span id="L75" class="LineNr"> 75 </span>  <span class="Comment"># ..and the λ in red.</span>
<span id="L76" class="LineNr"> 76 </span>  screen-should-contain-in-color <span class="Constant">1</span>/red<span class="Delimiter">,</span> [
<span id="L77" class="LineNr"> 77 </span>  <span class="Comment">#  01234</span>
<span id="L78" class="LineNr"> 78 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>λ    <span class="Delimiter">.</span>
<span id="L79" class="LineNr"> 79 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L80" class="LineNr"> 80 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L81" class="LineNr"> 81 </span>  ]
<span id="L82" class="LineNr"> 82 </span>]
<span id="L83" class="LineNr"> 83 </span><span class="Comment"># checks are inside scenario</span>
<span id="L84" class="LineNr"> 84 </span>
<span id="L85" class="LineNr"> 85 </span><span class="Delimiter">:(scenario screen_in_scenario_error)</span>
<span id="L86" class="LineNr"> 86 </span><span class="Special">% Scenario_testing_scenario = true;</span>
<span id="L87" class="LineNr"> 87 </span><span class="Special">% Hide_errors = true;</span>
<span id="L88" class="LineNr"> 88 </span><span class="muScenario"><a href='050scenario.cc.html#L57'>scenario</a></span> screen-in-scenario-error [
<span id="L89" class="LineNr"> 89 </span>  local-scope
<span id="L90" class="LineNr"> 90 </span>  assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
<span id="L91" class="LineNr"> 91 </span>  run [
<span id="L92" class="LineNr"> 92 </span>  <span class="Conceal">¦</span> <span class="Normal">a</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">97</span>/a
<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> a
<span id="L94" class="LineNr"> 94 </span>  ]
<span id="L95" class="LineNr"> 95 </span>  screen-should-contain [
<span id="L96" class="LineNr"> 96 </span>  <span class="Comment">#  01234</span>
<span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>b    <span class="Delimiter">.</span>
<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L100" class="LineNr">100 </span>  ]
<span id="L101" class="LineNr">101 </span>]
<span id="L102" class="LineNr">102 </span><span class="traceContains">+error: expected screen location (0, 0) to contain 98 ('b') instead of 97 ('a')</span>
<span id="L103" class="LineNr">103 </span>
<span id="L104" class="LineNr">104 </span><span class="Delimiter">:(scenario screen_in_scenario_color_error)</span>
<span id="L105" class="LineNr">105 </span><span class="Special">% Scenario_testing_scenario = true;</span>
<span id="L106" class="LineNr">106 </span><span class="Special">% Hide_errors = true;</span>
<span id="L107" class="LineNr">107 </span><span class="Comment"># screen-should-contain can check unicode characters in the fake screen</span>
<span id="L108" class="LineNr">108 </span><span class="muScenario"><a href='050scenario.cc.html#L57'>scenario</a></span> screen-in-scenario-color-error [
<span id="L109" class="LineNr">109 </span>  local-scope
<span id="L110" class="LineNr">110 </span>  assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
<span id="L111" class="LineNr">111 </span>  run [
<span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Normal">a</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>copy <span class="Constant">97</span>/a
<span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Normal">screen</span>:&amp;:screen<span class="Special"> &lt;- </span>print screen:&amp;:screen<span class="Delimiter">,</span> a<span class="Delimiter">,</span> <span class="Constant">1</span>/red
<span id="L114" class="LineNr">114 </span>  ]
<span id="L115" class="LineNr">115 </span>  screen-should-contain-in-color <span class="Constant">2</span>/green<span class="Delimiter">,</span> [
<span id="L116" class="LineNr">116 </span>  <span class="Comment">#  01234</span>
<span id="L117" class="LineNr">117 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>a    <span class="Delimiter">.</span>
<span id="L118" class="LineNr">118 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <span class="Delimiter">.</span>     <span class="Delimiter">.</span>
<span id="L120" class="LineNr">120 </span>  ]
<span id="L121" class="LineNr">121 </span>]
<span id="L122" class="LineNr">122 </span><span class="traceContains">+error: expected screen location (0, 0) to be in color 2 instead of 1</span>
<span id="L123" class="LineNr">123 </span>
<span id="L124" class="LineNr">124 </span><span class="Delimiter">:(scenarios run)</span>
<span id="L125" class="LineNr">125 </span><span class="Delimiter">:(scenario convert_names_does_not_fail_when_mixing_special_names_and_numeric_locations)</span>
<span id="L126" class="LineNr">126 </span><span class="Special">% Scenario_testing_scenario = true;</span>
<span id="L127" class="LineNr">127 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L128" class="LineNr">128 </span>  <span class="Normal">screen</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>:num
<span id="L129" class="LineNr">129 </span>]
<span id="L130" class="LineNr">130 </span><span class="traceAbsent">-error: mixing variable names and numeric addresses in <a href='000organization.cc.html#L113'>main</a></span>
<span id="L131" class="LineNr">131 </span>$error: <span class="Constant">0</span>
<span id="L132" class="LineNr">132 </span><span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span id="L133" class="LineNr">133 </span>
<span id="L134" class="LineNr">134 </span><span class="Comment">//: It's easier to implement assume-screen and other similar scenario-only</span>
<span id="L135" class="LineNr">135 </span><span class="Comment">//: primitives if they always write to a fixed location. So we'll assign a</span>
<span id="L136" class="LineNr">136 </span><span class="Comment">//: single fixed location for the per-scenario screen, keyboard, file system,</span>
<span id="L137" class="LineNr">137 </span><span class="Comment">//: etc. Carve space for these fixed locations out of the reserved-for-test</span>
<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="L143" class="LineNr">143 </span><span class="Delimiter">:(before &quot;End Setup&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="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>
<span id="L148" class="LineNr">148 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> SCREEN = Next_predefined_global_for_scenarios++<span class="Delimiter">;</span>
<span id="L149" class="LineNr">149 </span><span class="Comment">// End Scenario Globals.</span>
<span id="L150" class="LineNr">150 </span>
<span id="L151" class="LineNr">151 </span><span class="Comment">//: give 'screen' a fixed location in scenarios</span>
<span id="L152" class="LineNr">152 </span><span class="Delimiter">:(before &quot;End Special Scenario Variable Names(r)&quot;)</span>
<span id="L153" class="LineNr">153 </span>Name[r][<span class="Constant">&quot;screen&quot;</span>] = SCREEN<span class="Delimiter">;</span>
<span id="L154" class="LineNr">154 </span><span class="Comment">//: make 'screen' always a raw location in scenarios</span>
<span id="L155" class="LineNr">155 </span><span class="Delimiter">:(before &quot;End <a href='042name.cc.html#L156'>is_special_name</a> Special-cases&quot;)</span>
<span id="L156" class="LineNr">156 </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>
<span id="L157" class="LineNr">157 </span>
<span id="L158" class="LineNr">158 </span><span class="Delimiter">:(before &quot;End Rewrite Instruction(curr, <a href='010vm.cc.html#L19'>recipe</a> result)&quot;)</span>
<span id="L159" class="LineNr">159 </span><span class="Comment">// rewrite `assume-screen width, height` to</span>
<span id="L160" class="LineNr">160 </span><span class="Comment">// `screen:&amp;:screen &lt;- new-fake-screen width, height`</span>
<span id="L161" class="LineNr">161 </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="L162" class="LineNr">162 </span>  curr<span class="Delimiter">.</span>name = <span class="Constant">&quot;new-fake-screen&quot;</span><span class="Delimiter">;</span>
<span id="L163" class="LineNr">163 </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="L164" class="LineNr">164 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L165" class="LineNr">165 </span>  <span class="Delimiter">}</span>
<span id="L166" class="LineNr">166 </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="L167" class="LineNr">167 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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="L168" class="LineNr">168 </span>  <span class="Delimiter">}</span>
<span id="L169" class="LineNr">169 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
<span id="L171" class="LineNr">171 </span>  <span class="Conceal">¦</span> curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span><span class="Constant">&quot;screen:&amp;:screen/raw&quot;</span><span class="Delimiter">));</span>
<span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span>SCREEN<span class="Delimiter">);</span>
<span id="L173" class="LineNr">173 </span>  <span class="Delimiter">}</span>
<span id="L174" class="LineNr">174 </span><span class="Delimiter">}</span>
<span id="L175" class="LineNr">175 </span>
<span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario assume_screen_shows_up_in_errors)</span>
<span id="L177" class="LineNr">177 </span><span class="Special">% Hide_errors = true;</span>
<span id="L178" class="LineNr">178 </span><span class="muScenario"><a href='050scenario.cc.html#L57'>scenario</a></span> assume-screen-shows-up-in-errors [
<span id="L179" class="LineNr">179 </span>  assume-screen width<span class="Delimiter">,</span> <span class="Constant">5</span>
<span id="L180" class="LineNr">180 </span>]
<span id="L181" class="LineNr">181 </span><span class="traceContains">+error: scenario_assume-screen-shows-up-in-errors: missing type for 'width' in 'assume-screen width, 5'</span>
<span id="L182" class="LineNr">182 </span>
<span id="L183" class="LineNr">183 </span><span class="Comment">//: screen-should-contain is a regular instruction</span>
<span id="L184" class="LineNr">184 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L185" class="LineNr">185 </span>SCREEN_SHOULD_CONTAIN<span class="Delimiter">,</span>
<span id="L186" class="LineNr">186 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L187" class="LineNr">187 </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="L188" class="LineNr">188 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L189" class="LineNr">189 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
<span id="L190" class="LineNr">190 </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="L191" class="LineNr">191 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L192" class="LineNr">192 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L193" class="LineNr">193 </span>  <span class="Delimiter">}</span>
<span id="L194" class="LineNr">194 </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="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L197" class="LineNr">197 </span>  <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="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L201" class="LineNr">201 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
<span id="L202" class="LineNr">202 </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="L203" class="LineNr">203 </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="L204" class="LineNr">204 </span>  check_screen<span class="Delimiter">(</span><a href='026call.cc.html#L85'>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="L205" class="LineNr">205 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L206" class="LineNr">206 </span><span class="Delimiter">}</span>
<span id="L207" class="LineNr">207 </span>
<span id="L208" class="LineNr">208 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L209" class="LineNr">209 </span>SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">,</span>
<span id="L210" class="LineNr">210 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L211" class="LineNr">211 </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="L212" class="LineNr">212 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L213" class="LineNr">213 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
<span id="L214" class="LineNr">214 </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="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
<span id="L218" class="LineNr">218 </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="L219" class="LineNr">219 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L220" class="LineNr">220 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L221" class="LineNr">221 </span>  <span class="Delimiter">}</span>
<span id="L222" class="LineNr">222 </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="L223" class="LineNr">223 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L224" class="LineNr">224 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L225" class="LineNr">225 </span>  <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="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L229" class="LineNr">229 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
<span id="L230" class="LineNr">230 </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="L231" class="LineNr">231 </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="L232" class="LineNr">232 </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="L233" class="LineNr">233 </span>  check_screen<span class="Delimiter">(</span><a href='026call.cc.html#L85'>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>
<span id="L234" class="LineNr">234 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L235" class="LineNr">235 </span><span class="Delimiter">}</span>
<span id="L236" class="LineNr">236 </span>
<span id="L237" class="LineNr">237 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
<span id="L238" class="LineNr">238 </span><span class="Comment">// scan an array of characters in a unicode-aware, bounds-checked manner</span>
<span id="L239" class="LineNr">239 </span><span class="Normal">struct</span> raw_string_stream <span class="Delimiter">{</span>
<span id="L240" class="LineNr">240 </span>  <span class="Normal">int</span> index<span class="Delimiter">;</span>
<span id="L241" class="LineNr">241 </span>  <span class="Normal">const</span> <span class="Normal">int</span> max<span class="Delimiter">;</span>
<span id="L242" class="LineNr">242 </span>  <span class="Normal">const</span> <span class="Normal">char</span>* buf<span class="Delimiter">;</span>
<span id="L243" class="LineNr">243 </span>
<span id="L244" class="LineNr">244 </span>  raw_string_stream<span class="Delimiter">(</span><span class="Normal">const</span> string&amp;<span class="Delimiter">);</span>
<span id="L245" class="LineNr">245 </span>  <span class="Normal">uint32_t</span> get<span class="Delimiter">();</span>  <span class="Comment">// unicode codepoint</span>
<span id="L246" class="LineNr">246 </span>  <span class="Normal">uint32_t</span> peek<span class="Delimiter">();</span>  <span class="Comment">// unicode codepoint</span>
<span id="L247" class="LineNr">247 </span>  <span class="Normal">bool</span> at_end<span class="Delimiter">()</span> <span class="Normal">const</span><span class="Delimiter">;</span>
<span id="L248" class="LineNr">248 </span>  <span class="Normal">void</span> <a href='011load.cc.html#L209'>skip_whitespace_and_comments</a><span class="Delimiter">();</span>
<span id="L249" class="LineNr">249 </span><span class="Delimiter">};</span>
<span id="L250" class="LineNr">250 </span>
<span id="L251" class="LineNr">251 </span><span class="Delimiter">:(code)</span>
<span id="L252" class="LineNr">252 </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="L253" class="LineNr">253 </span>  <span class="Normal">int</span> screen_location = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> SCREEN<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">skip refcount</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L254" class="LineNr">254 </span>  <span class="Normal">int</span> data_offset = <a href='042name.cc.html#L133'>find_element_name</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;data&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span id="L255" class="LineNr">255 </span>  assert<span class="Delimiter">(</span>data_offset &gt;= <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L256" class="LineNr">256 </span>  <span class="Normal">int</span> screen_data_location = screen_location+data_offset<span class="Delimiter">;</span>  <span class="Comment">// type: address:array:character</span>
<span id="L257" class="LineNr">257 </span>  <span class="Normal">int</span> screen_data_start = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_location<span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip refcount</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// type: array:character</span>
<span id="L258" class="LineNr">258 </span>  <span class="Normal">int</span> width_offset = <a href='042name.cc.html#L133'>find_element_name</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;num-columns&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span id="L259" class="LineNr">259 </span>  <span class="Normal">int</span> screen_width = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+width_offset<span class="Delimiter">);</span>
<span id="L260" class="LineNr">260 </span>  <span class="Normal">int</span> height_offset = <a href='042name.cc.html#L133'>find_element_name</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;num-rows&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span id="L261" class="LineNr">261 </span>  <span class="Normal">int</span> screen_height = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+height_offset<span class="Delimiter">);</span>
<span id="L262" class="LineNr">262 </span>  raw_string_stream cursor<span class="Delimiter">(</span>expected_contents<span class="Delimiter">);</span>
<span id="L263" class="LineNr">263 </span>  <span class="Comment">// todo: too-long expected_contents should fail</span>
<span id="L264" class="LineNr">264 </span>  <span class="Normal">int</span> addr = screen_data_start+<span class="Comment">/*</span><span class="Comment">skip length</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L265" class="LineNr">265 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> row = <span class="Constant">0</span><span class="Delimiter">;</span>  row &lt; screen_height<span class="Delimiter">;</span>  ++row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L266" class="LineNr">266 </span>  <span class="Conceal">¦</span> cursor<span class="Delimiter">.</span><a href='011load.cc.html#L209'>skip_whitespace_and_comments</a><span class="Delimiter">();</span>
<span id="L267" class="LineNr">267 </span>  <span class="Conceal">¦</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="L268" class="LineNr">268 </span>  <span class="Conceal">¦</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="L269" class="LineNr">269 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &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#L185'>end</a><span class="Delimiter">();</span>
<span id="L270" class="LineNr">270 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="L271" class="LineNr">271 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L272" class="LineNr">272 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L273" class="LineNr">273 </span>  <span class="Conceal">¦</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="L274" class="LineNr">274 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="L275" class="LineNr">275 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">uint32_t</span> curr = cursor<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span id="L276" class="LineNr">276 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L228'>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="L277" class="LineNr">277 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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#L228'>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="L278" class="LineNr">278 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// filter out other colors</span>
<span id="L279" class="LineNr">279 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L280" class="LineNr">280 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L281" class="LineNr">281 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L228'>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#L228'>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="L282" class="LineNr">282 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>color == -<span class="Constant">1</span> || color == <a href='001help.cc.html#L228'>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="L283" class="LineNr">283 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// contents match but color is off</span>
<span id="L284" class="LineNr">284 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L285" class="LineNr">285 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// genuine test in a .mu file</span>
<span id="L286" class="LineNr">286 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &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;, <a href='043space.cc.html#L76'>address</a> &quot;</span> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot;, value &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span><a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;) to be 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#L228'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L287" class="LineNr">287 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> dump_screen<span class="Delimiter">();</span>
<span id="L288" class="LineNr">288 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L289" class="LineNr">289 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L290" class="LineNr">290 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// just testing check_screen</span>
<span id="L291" class="LineNr">291 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &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 be 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#L228'>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="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L292" class="LineNr">292 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L293" class="LineNr">293 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L296" class="LineNr">296 </span>
<span id="L297" class="LineNr">297 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// really a mismatch</span>
<span id="L298" class="LineNr">298 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// can't print multi-byte unicode characters in errors just yet. not very useful for debugging anyway.</span>
<span id="L299" class="LineNr">299 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">char</span> expected_pretty[<span class="Constant">10</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span>
<span id="L300" class="LineNr">300 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr &lt; <span class="Constant">256</span> &amp;&amp; !iscntrl<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L301" class="LineNr">301 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// &quot; ('&lt;curr&gt;')&quot;</span>
<span id="L302" class="LineNr">302 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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="L303" class="LineNr">303 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L304" class="LineNr">304 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="L305" class="LineNr">305 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L228'>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#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L306" class="LineNr">306 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// &quot; ('&lt;curr&gt;')&quot;</span>
<span id="L307" class="LineNr">307 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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#L228'>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="L308" class="LineNr">308 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L309" class="LineNr">309 </span>
<span id="L310" class="LineNr">310 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> ostringstream color_phrase<span class="Delimiter">;</span>
<span id="L311" class="LineNr">311 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="L312" class="LineNr">312 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L313" class="LineNr">313 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// genuine test in a .mu file</span>
<span id="L314" class="LineNr">314 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &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#L228'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L315" class="LineNr">315 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> dump_screen<span class="Delimiter">();</span>
<span id="L316" class="LineNr">316 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L317" class="LineNr">317 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L318" class="LineNr">318 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// just testing check_screen</span>
<span id="L319" class="LineNr">319 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &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#L228'>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#L185'>end</a><span class="Delimiter">();</span>
<span id="L320" class="LineNr">320 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L321" class="LineNr">321 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L324" class="LineNr">324 </span>  <span class="Conceal">¦</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="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &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#L185'>end</a><span class="Delimiter">();</span>
<span id="L326" class="LineNr">326 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="L327" class="LineNr">327 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L328" class="LineNr">328 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L329" class="LineNr">329 </span>  <span class="Delimiter">}</span>
<span id="L330" class="LineNr">330 </span>  cursor<span class="Delimiter">.</span><a href='011load.cc.html#L209'>skip_whitespace_and_comments</a><span class="Delimiter">();</span>
<span id="L331" class="LineNr">331 </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="L332" class="LineNr">332 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &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#L185'>end</a><span class="Delimiter">();</span>
<span id="L333" class="LineNr">333 </span>  <span class="Conceal">¦</span> Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L334" class="LineNr">334 </span>  <span class="Delimiter">}</span>
<span id="L335" class="LineNr">335 </span><span class="Delimiter">}</span>
<span id="L336" class="LineNr">336 </span>
<span id="L337" class="LineNr">337 </span>raw_string_stream::raw_string_stream<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; backing<span class="Delimiter">)</span> :index<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> max<span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>backing<span class="Delimiter">)),</span> buf<span class="Delimiter">(</span>backing<span class="Delimiter">.</span>c_str<span class="Delimiter">())</span> <span class="Delimiter">{}</span>
<span id="L338" class="LineNr">338 </span>
<span id="L339" class="LineNr">339 </span><span class="Normal">bool</span> raw_string_stream::at_end<span class="Delimiter">()</span> <span class="Normal">const</span> <span class="Delimiter">{</span>
<span id="L340" class="LineNr">340 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>index &gt;= max<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L341" class="LineNr">341 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>tb_utf8_char_length<span class="Delimiter">(</span>buf[index]<span class="Delimiter">)</span> &gt; max-index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;unicode string seems corrupted at index &quot;</span>&lt;&lt; index &lt;&lt; <span class="Constant">&quot; character &quot;</span> &lt;&lt; <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span>buf[index]<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L343" class="LineNr">343 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L344" class="LineNr">344 </span>  <span class="Delimiter">}</span>
<span id="L345" class="LineNr">345 </span>  <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L346" class="LineNr">346 </span><span class="Delimiter">}</span>
<span id="L347" class="LineNr">347 </span>
<span id="L348" class="LineNr">348 </span><span class="Normal">uint32_t</span> raw_string_stream::get<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L349" class="LineNr">349 </span>  assert<span class="Delimiter">(</span>index &lt; max<span class="Delimiter">);</span>  <span class="Comment">// caller must check bounds before calling 'get'</span>
<span id="L350" class="LineNr">350 </span>  <span class="Normal">uint32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L351" class="LineNr">351 </span>  <span class="Normal">int</span> length = tb_utf8_char_to_unicode<span class="Delimiter">(</span>&amp;result<span class="Delimiter">,</span> &amp;buf[index]<span class="Delimiter">);</span>
<span id="L352" class="LineNr">352 </span>  assert<span class="Delimiter">(</span>length != TB_EOF<span class="Delimiter">);</span>
<span id="L353" class="LineNr">353 </span>  index += length<span class="Delimiter">;</span>
<span id="L354" class="LineNr">354 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L355" class="LineNr">355 </span><span class="Delimiter">}</span>
<span id="L356" class="LineNr">356 </span>
<span id="L357" class="LineNr">357 </span><span class="Normal">uint32_t</span> raw_string_stream::peek<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L358" class="LineNr">358 </span>  assert<span class="Delimiter">(</span>index &lt; max<span class="Delimiter">);</span>  <span class="Comment">// caller must check bounds before calling 'get'</span>
<span id="L359" class="LineNr">359 </span>  <span class="Normal">uint32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L360" class="LineNr">360 </span>  <span class="Normal">int</span> length = tb_utf8_char_to_unicode<span class="Delimiter">(</span>&amp;result<span class="Delimiter">,</span> &amp;buf[index]<span class="Delimiter">);</span>
<span id="L361" class="LineNr">361 </span>  assert<span class="Delimiter">(</span>length != TB_EOF<span class="Delimiter">);</span>
<span id="L362" class="LineNr">362 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L363" class="LineNr">363 </span><span class="Delimiter">}</span>
<span id="L364" class="LineNr">364 </span>
<span id="L365" class="LineNr">365 </span><span class="Normal">void</span> raw_string_stream::<a href='011load.cc.html#L209'>skip_whitespace_and_comments</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L366" class="LineNr">366 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>!at_end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L367" class="LineNr">367 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>peek<span class="Delimiter">()))</span> get<span class="Delimiter">();</span>
<span id="L368" class="LineNr">368 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>peek<span class="Delimiter">()</span> == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L369" class="LineNr">369 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// skip comment</span>
<span id="L370" class="LineNr">370 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> get<span class="Delimiter">();</span>
<span id="L371" class="LineNr">371 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">while</span> <span class="Delimiter">(</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> get<span class="Delimiter">();</span>  <span class="Comment">// implicitly also handles CRLF</span>
<span id="L372" class="LineNr">372 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L373" class="LineNr">373 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L374" class="LineNr">374 </span>  <span class="Delimiter">}</span>
<span id="L375" class="LineNr">375 </span><span class="Delimiter">}</span>
<span id="L376" class="LineNr">376 </span>
<span id="L377" class="LineNr">377 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L378" class="LineNr">378 </span>_DUMP_SCREEN<span class="Delimiter">,</span>
<span id="L379" class="LineNr">379 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L380" class="LineNr">380 </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="L381" class="LineNr">381 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L382" class="LineNr">382 </span><span class="Normal">case</span> _DUMP_SCREEN: <span class="Delimiter">{</span>
<span id="L383" class="LineNr">383 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L384" class="LineNr">384 </span><span class="Delimiter">}</span>
<span id="L385" class="LineNr">385 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L386" class="LineNr">386 </span><span class="Normal">case</span> _DUMP_SCREEN: <span class="Delimiter">{</span>
<span id="L387" class="LineNr">387 </span>  dump_screen<span class="Delimiter">();</span>
<span id="L388" class="LineNr">388 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L389" class="LineNr">389 </span><span class="Delimiter">}</span>
<span id="L390" class="LineNr">390 </span>
<span id="L391" class="LineNr">391 </span><span class="Delimiter">:(code)</span>
<span id="L392" class="LineNr">392 </span><span class="Normal">void</span> dump_screen<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L393" class="LineNr">393 </span>  <span class="Normal">int</span> screen_location = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> SCREEN<span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip refcount</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L394" class="LineNr">394 </span>  <span class="Normal">int</span> width_offset = <a href='042name.cc.html#L133'>find_element_name</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;num-columns&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span id="L395" class="LineNr">395 </span>  <span class="Normal">int</span> screen_width = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+width_offset<span class="Delimiter">);</span>
<span id="L396" class="LineNr">396 </span>  <span class="Normal">int</span> height_offset = <a href='042name.cc.html#L133'>find_element_name</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;num-rows&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span id="L397" class="LineNr">397 </span>  <span class="Normal">int</span> screen_height = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+height_offset<span class="Delimiter">);</span>
<span id="L398" class="LineNr">398 </span>  <span class="Normal">int</span> data_offset = <a href='042name.cc.html#L133'>find_element_name</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;screen&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;data&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span id="L399" class="LineNr">399 </span>  assert<span class="Delimiter">(</span>data_offset &gt;= <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L400" class="LineNr">400 </span>  <span class="Normal">int</span> screen_data_location = screen_location+data_offset<span class="Delimiter">;</span>  <span class="Comment">// type: address:array:character</span>
<span id="L401" class="LineNr">401 </span>  <span class="Normal">int</span> screen_data_start = <a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_location<span class="Delimiter">)</span> + <span class="Comment">/*</span><span class="Comment">skip refcount</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// type: array:character</span>
<span id="L402" class="LineNr">402 </span>  assert<span class="Delimiter">(</span><a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_start<span class="Delimiter">)</span> == screen_width*screen_height<span class="Delimiter">);</span>
<span id="L403" class="LineNr">403 </span>  <span class="Normal">int</span> curr = screen_data_start+<span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// skip length</span>
<span id="L404" class="LineNr">404 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> row = <span class="Constant">0</span><span class="Delimiter">;</span>  row &lt; screen_height<span class="Delimiter">;</span>  ++row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L405" class="LineNr">405 </span>  <span class="Conceal">¦</span> cerr &lt;&lt; <span class="Constant">'.'</span><span class="Delimiter">;</span>
<span id="L406" class="LineNr">406 </span>  <span class="Conceal">¦</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="L407" class="LineNr">407 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">))</span>
<span id="L408" class="LineNr">408 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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#L228'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">)));</span>
<span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
<span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> cerr &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
<span id="L411" class="LineNr">411 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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="L412" class="LineNr">412 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</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="L414" class="LineNr">414 </span>  <span class="Delimiter">}</span>
<span id="L415" class="LineNr">415 </span><span class="Delimiter">}</span>
</pre>
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