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sysvals.plot = (x,w) => {
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   ,[runtime[0],runtime[1],runtime[2],runtime[3],runtime[4],runtime[6],runtime[7],runtime[8],runtime[9],runtime[10],runtime[11],runtime[12],runtime[13],runtime[14],runtime[15],runtime[16],runtime[18],runtime[19],runtime[20],runtime[21],runtime[22],runtime[23],runtime[24],runtime[25],runtime[26],runtime[27],runtime[30],runtime[31],runtime[32],runtime[35],runtime[36],runtime[41],runtime[42],runtime[43],runtime[44],runtime[45],runtime[46],runtime[47],runtime[49],runtime[51],runtime[52],runtime[53],runtime[54],runtime[55],runtime[56],runtime[57],runtime[58],runtime[59],runtime[61],1,2,3,0,-Infinity,Infinity,10,0.5,384,-1,1e+300,4,1.5,' ','0','=','|','\0','M',str("t"),str("<"),str(">"),str("</"),str("  "),str("/>"),str("-."),str(" "),str("=\'"),str("\'"),str("x"),str("y"),str("svg"),str("viewBox"),str("class=Paren|stroke=currentColor|stroke-width=1"),str("class=red|style=fill:none|stroke-width=1"),str("class=code|stroke-width=1|rx=5"),str("g"),str("font-family=BQN,monospace|font-size=18px"),str("path"),str("d"),str("•Plot: 𝕨 and 𝕩 must consist of rows of numbers"),str("•Plot: 𝕨 and 𝕩 must have the same length"),str("•Plot: invalid depth mixing"),str("L "),str("rect"),str("width"),str("height"),str("M "),str("VH")]
   ,[[0,1,0],[0,0,1],[0,0,[[],[2]]],[0,0,3],[0,0,4],[0,0,5],[0,0,6],[0,0,[[],[7]]],[0,0,8],[0,0,[[],[9]]],[0,0,10],[0,0,11],[0,0,12],[0,0,13],[1,0,[[],[14]]],[0,0,15],[0,0,[[],[16]]],[0,0,17],[1,1,18],[0,0,[[],[19]]],[0,0,20],[0,0,21],[0,0,22]]
   ,[[0,24],[321,4],[408,8],[528,3],[541,10],[792,3],[802,3],[812,3],[828,4],[879,3],[904,3],[1033,4],[1121,11],[1609,3],[1652,5],[1664,3],[1703,4],[1793,4],[1894,2],[1924,3],[1932,3],[1953,3],[1960,3]]
  );
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  setExplain = () => doc.explain.innerHTML = '';
  return '\0';
}

let keymode=0; // 1 for prefix
let prefix='\\';
doc.code.onkeydown = ev => {
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  if (16<=k && k<=20) {
    return;
  } if (k==13 && (ev.shiftKey||ev.ctrlKey||ev.altKey||ev.metaKey)) { // *-enter
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  } if (keymode) {
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    let c = keys[ev.key];
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}
let typeChar = (t, c, ev) => {
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  let i = t.selectionStart;
  t.value = v.slice(0,i)+c+v.slice(t.selectionEnd);
  t.selectionStart = t.selectionEnd = i+c.length;
  return false;
}

let syncls={ v:"Value", f:"Function", m:"Modifier", d:"Modifier2", n:"Number", g:"Gets", p:"Paren", b:"Bracket", k:"Brace", l:"Ligature", n:"Nothing", s:"Separator", c:"Comment", a:"String" };
let keydesc='f+Conjugate;Add_f-Negate;Subtract_f×Sign;Multiply_f÷Reciprocal;Divide_f⋆Exponential;Power_f√Square Root;Root_f⌊Floor;Minimum_f⌈Ceiling;Maximum_f∧Sort Up;And_f∨Sort Down;Or_f¬Not;Span_f|Absolute Value;Modulus_f≤Less Than or Equal to_f<Enclose;Less Than_f>Merge;Greater Than_f≥Greater Than or Equal to_f=Rank;Equals_f≠Length;Not Equals_f≡Depth;Match_f≢Shape;Not Match_f⊣Identity;Left_f⊢Identity;Right_f⥊Deshape;Reshape_f∾Join;Join to_f≍Solo;Couple_f↑Prefixes;Take_f↓Suffixes;Drop_f↕Range;Windows_f«Shift Before_f»Shift After_f⌽Reverse;Rotate_f⍉Transpose;Reorder axes_f/Indices;Replicate_f⍋Grade Up;Bins Up_f⍒Grade Down;Bins Down_f⊏First Cell;Select_f⊑First;Pick_f⊐Classify;Index of_f⊒Occurrence Count;Progressive Index of_f∊Mark First;Member of_f⍷Deduplicate;Find_f⊔Group Indices;Group_f!Assert;Assert with message_m˙Constant_m˜Self/Swap_d∘Atop_d○Over_d⊸Before/Bind_d⟜After/Bind_d⌾Under_d⊘Valences_d◶Choose_d⎊Catch_d⎉Rank_m˘Cells_d⚇Depth_m¨Each_m⌜Table_d⍟Repeat_m⁼Undo_m´Fold_m˝Insert_m`Scan_g←Define_g⇐Export_g↩Change_g→Return_s⋄Separator_s,Separator_v.Namespace field_p(Begin expression_p)End expression_k{Begin block_k}End block_b⟨Begin list_b⟩End list_l‿Strand_n·Nothing_v•System_v𝕨Left argument_f𝕎Left argument (as function)_v𝕩Right argument_f𝕏Right argument (as function)_v𝕗Modifier left operand (as subject)_f𝔽Modifier left operand_v𝕘2-modifier right operand (as subject)_f𝔾2-modifier right operand_v𝕤Current function (as subject)_f𝕊Current function_m𝕣Current modifier_n¯Minus_nπPi_n∞Infinity_a@Null character_c#Comment'.split(/[\n_]/);
let kk=Array.from('`123456890-=~!@#$%^&*()_+qwertuiop[]QWERTIOP{}asdfghjkl;ASFGHKL:"zxcvbm,./XVBM<>? \'');
let kv=Array.from('˜˘¨⁼⌜´˝∞¯•÷׬⎉⚇⍟◶⊘⎊⍎⍕⟨⟩√⋆⌽𝕨∊↑∧⊔⊏⊐π←→↙𝕎⍷𝕣⍋⊑⊒⍳⊣⊢⍉𝕤↕𝕗𝕘⊸∘○⟜⋄↖𝕊𝔽𝔾«⌾»·˙⥊𝕩↓∨⌊≡∾≍≠𝕏⍒⌈≢≤≥⇐‿↩');
let keys={}, revkeys={}, primhelp={};
kk.map((k,i)=>{keys[k]=kv[i];revkeys[kv[i]]=k;});
doc.kb.innerHTML = keydesc
  .map(d=>'<span class="'+syncls[d[0]]+'">'+Array.from(d)[1]+'</span>')
  .concat(['<a href="keymap.html" target="_blank">map</a>'])
  .join("&#8203;"); // zero-width space
let setPrefix = () => {
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}
setPrefix();
doc.kb.onmousedown = ev => {
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}

let appendHTML = (e,a) => e.insertAdjacentHTML('beforeend', a);
appendHTML(doc.kb, '<div class="kbext"></div>');
doc.kbext = doc.kb.querySelector('.kbext');

if (doc.demo) {
  let fonts=[["BQN386"],["DejaVu","Mod"],["Fairfax","HD"],["3270","font"],["Iosevka","Term"],["Julia","Mono"]];
  let fclass = f => f==="3270"?"f"+f:f
  let fontsel = '<select>'+fonts.map(f =>
      '<option value="'+f[0]+'">'+f[0]+(f[1]?' '+f[1]:'')+'</option>'
    ).join("")+'select';
  appendHTML(doc.kbext, fontsel);
  doc.kbext.querySelector('select').onchange =
    e=>doc.cont.className='cont '+fclass(e.target.value);
}

appendHTML(doc.kbext, '<input class="prfx" type="text" maxlength="1" value="'+prefix+'"/>');
doc.kbext.querySelector(".prfx").onchange = ev => {
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}

if (doc.perm) doc.perm.onmouseover = doc.perm.onfocus = () => {
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  doc.perm.href='#code='+btoa(String.fromCharCode(...b));
}

let demo = 0;
if (doc.demo) doc.demo.onclick = () => {
  const demos = [
    '<⟜\'a\'⊸/ "Big Questions Notation"'
   ,'≠⌜˜ 8 ⥊ 0‿1'
   ,'+´ 1 + ↕100'
   ,'(+´ ÷ ≠) 2‿5‿7‿4'
   ,'+`-˝ "()" =⌜ "(2×(4-1)÷(√9))"'
   ,'(⊑ + ↕∘¬˜´) "CG"'
   ,'0‿1‿10‿100⊸⍋⊸⊔ ⟨6,11,9,20,105,1,¯1,4⟩'
   ,'{(+`𝕩<\'a\') ⊔ 𝕩} "camelCaseWord"'
   ,'3‿4‿2⌾(0‿0⊸⍉) 3‿3⥊¯1'
   ,'∾ (<˘ ≍¨¨ 1↓↓) "abcd"'
   ,'Life←{∨´1‿𝕩∧3‿4=+˝⥊⌽⟜𝕩¨1-˜↕3‿3}\nLife⍟(↕4) 6‿6↑(1⊸=∨5⊸≤)3‿3⥊↕9'
   ,'⥊ 1‿0‿1 ∧⌜⍟3 1'
   ,'⌈˝ (≠ ↕ 0‿0⊸∾) 1‿2‿5‿4‿0‿2‿1'
  ];
  ++demo; if (demo===demos.length) demo=0;
  doc.code.value = demos[demo]; repl();
}

if (location.hash) {
  let code, run=1, ee=0;
  location.hash.slice(1).split('&').map(s => {
    if (s.slice(0,5)==='code=') code=s.slice(5);
    if (s.slice(0,5)==='norun') run=0;
    if (s.slice(0,7)==='explain') ee=1;
  });
  if (code!==undefined) {
    let b=new Uint8Array([...atob(code)].map(c=>c.charCodeAt(0)));
    let c=doc.code.value=(new TextDecoder()).decode(b);
    setcount(c); doc.code.rows = Math.max(doc.code.rows, 1+c.split("\n").length);
    if (ee && doc.doexplain) doc.doexplain.onclick();
    nojs = () => { throw Error("Possible script injection; press Run to confirm"); }
    if (run) { sysvals.js=nojs; repl(); }
    doc.code.focus();
  }
}