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sysvals.plot = (x,w) => {
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    [0,19,22,0,0,11,22,0,1,11,14,15,1,22,0,2,11,14,15,2,22,0,3,11,14,15,3,22,0,4,11,14,15,4,22,0,5,11,14,0,20,0,40,21,0,5,8,0,30,9,0,20,0,44,31,0,5,8,15,5,3,3,0,46,0,16,0,5,0,50,19,8,22,0,6,11,14,21,0,6,21,0,6,0,36,0,21,7,0,62,19,0,21,9,0,24,0,49,19,15,6,3,3,0,46,0,16,0,5,0,50,19,8,22,0,7,11,14,0,38,15,7,7,0,21,0,75,19,22,0,8,11,14,0,49,0,47,21,0,8,0,40,0,11,8,8,0,21,9,0,43,0,21,8,22,0,9,11,14,15,8,22,0,10,11,14,21,0,6,0,35,0,22,7,0,78,0,79,3,2,19,22,0,11,11,14,21,0,9,0,40,31,0,4,8,22,0,12,11,14,15,9,22,0,13,11,14,0,57,22,0,14,11,14,0,55,0,20,0,50,17,22,0,15,11,14,0,82,21,0,10,16,22,0,16,11,14,0,83,21,0,10,16,22,0,17,11,14,0,84,21,0,10,16,22,0,18,11,14,0,86,31,0,10,0,85,17,22,0,19,11,14,0,19,0,11,0,41,0,22,8,0,88,19,0,21,0,18,19,21,0,12,0,87,19,22,0,20,11,14,15,10,22,0,21,11,14,15,11,22,0,22,11,14,15,12,22,0,23,11,25,0,49,0,18,21,0,2,17,0,48,0,17,0,34,0,20,7,0,49,0,50,3,2,19,0,43,0,34,0,36,0,24,0,21,0,68,19,0,21,0,23,19,7,7,8,8,22,0,3,11,14,21,0,1,21,1,1,0,42,21,1,0,0,30,0,44,31,0,3,8,9,0,21,0,42,0,11,8,0,36,0,49,7,19,8,16,25,15,13,22,0,3,11,14,0,69,21,0,2,0,70,3,3,0,21,16,22,0,4,11,14,0,71,21,0,2,0,28,0,62,0,13,21,0,2,17,0,39,0,9,7,16,17,0,70,3,3,0,21,16,22,0,5,11,14,21,0,1,0,16,16,22,0,6,11,0,11,0,49,17,22,0,7,11,14,31,0,5,21,0,7,0,48,0,11,0,40,0,20,8,8,0,41,15,14,21,0,1,31,0,7,0,48,15,15,8,16,7,8,31,0,4,17,0,21,16,25,0,69,21,0,1,0,73,3,3,0,21,16,25,21,0,1,0,54,0,43,0,11,8,0,9,0,11,0,42,0,53,8,19,16,0,38,0,9,7,16,0,32,16,14,0,55,22,0,3,11,0,34,0,4,7,0,51,17,22,0,4,11,14,0,63,0,1,0,74,17,22,0,5,22,0,6,4,2,11,14,0,52,0,11,21,0,1,17,22,0,7,11,14,21,0,1,0,7,16,22,0,8,11,14,31,0,8,0,2,21,0,4,17,0,0,0,56,17,0,5,16,22,0,9,11,14,31,0,7,0,28,16,0,36,31,0,5,7,0,43,0,11,0,41,0,22,8,8,16,0,22,16,21,0,4,0,3,21,0,9,17,0,5,16,15,16,0,42,0,13,0,40,0,25,8,8,16,31,0,9,15,17,0,42,0,13,0,40,0,25,8,8,16,0,13,0,11,0,52,19,0,48,0,21,0,42,0,29,0,40,0,26,0,30,9,0,44,0,36,31,0,6,7,8,8,8,8,16,3,3,0,21,16,0,27,16,0,35,0,21,0,40,0,11,8,7,16,0,38,0,0,0,42,0,63,8,0,43,0,31,8,7,16,25,21,0,1,14,0,52,0,32,16,25,21,0,1,14,0,52,0,32,16,25,21,0,2,0,76,21,0,1,0,77,3,4,0,21,16,25,15,18,22,0,3,11,14,21,0,1,21,0,3,0,65,7,16,0,36,31,0,3,0,64,7,7,16,0,36,21,1,8,7,0,21,9,0,43,0,21,8,0,45,0,12,8,21,0,2,17,25,21,0,1,21,1,3,0,81,21,0,2,21,1,7,16,3,2,21,1,9,0,80,17,17,25,21,0,1,0,52,0,12,0,42,0,66,8,0,20,0,40,0,38,0,9,7,8,9,3,2,0,46,0,14,0,15,0,49,19,8,0,41,0,9,0,45,0,19,8,8,21,0,2,17,0,32,0,89,17,14,21,0,1,0,17,0,30,0,58,19,0,41,0,16,8,0,45,0,49,8,21,0,2,17,0,32,0,90,17,14,21,0,1,0,49,0,47,0,19,0,11,0,41,0,22,8,0,18,0,45,0,17,0,30,0,58,19,0,25,9,8,19,0,11,9,8,21,0,2,17,0,20,16,25,21,0,1,0,16,0,41,0,22,8,21,0,2,17,22,0,3,11,14,21,0,1,0,33,21,0,3,7,0,14,0,49,19,0,38,0,9,7,9,0,32,0,91,19,0,18,21,1,21,19,0,36,21,0,0,7,0,20,0,40,0,21,8,9,3,2,0,46,31,0,3,0,38,0,5,7,16,0,15,0,50,17,8,21,0,2,17,25,21,0,1,21,1,22,21,0,2,17,0,12,16,0,27,16,0,5,0,6,0,42,0,1,8,0,18,19,0,59,17,22,0,3,11,14,21,0,3,0,35,0,21,0,40,0,11,8,7,16,22,0,4,11,14,21,0,4,0,36,0,38,0,6,7,0,22,0,38,0,5,7,19,7,16,22,0,5,11,0,36,0,39,0,34,0,1,7,7,7,16,22,0,6,11,14,21,0,6,0,36,0,30,7,0,49,17,0,38,0,34,0,3,7,7,16,0,11,0,42,0,61,8,0,10,0,12,0,42,0,60,0,3,16,8,19,0,48,0,49,8,16,22,0,7,11,14,31,0,7,0,2,0,22,0,18,19,21,1,14,17,22,0,8,11,14,0,19,0,36,15,19,7,31,0,6,0,36,0,38,15,20,7,7,16,0,30,0,42,0,49,8,0,44,15,21,8,16,19,22,0,9,11,14,31,0,4,21,0,9,16,0,2,21,0,8,17,0,12,16,0,27,16,21,1,6,16,0,31,31,0,3,0,29,16,0,36,0,13,7,16,0,28,16,17,0,36,15,22,7,16,22,0,10,11,14,21,1,15,0,0,21,0,8,17,21,1,6,16,0,35,0,22,7,0,94,0,95,3,2,17,0,21,0,50,0,3,21,1,15,17,0,1,16,21,1,11,16,17,0,21,21,1,18,17,21,1,12,0,93,17,0,11,16,0,52,31,0,9,16,0,2,0,42,0,50,0,25,16,0,34,0,37,0,14,7,7,16,8,0,18,0,40,0,26,8,0,35,0,21,7,0,2,19,21,0,8,19,21,1,6,9,0,36,0,21,7,0,97,0,35,0,21,0,42,0,96,8,7,16,19,0,35,0,21,0,40,0,11,8,7,9,0,28,0,49,0,43,0,15,8,0,9,0,15,0,42,0,52,8,19,19,16,0,36,21,1,20,0,42,21,1,16,8,7,16,31,0,10,0,36,21,1,20,0,42,21,1,17,8,7,16,3,3,0,36,0,20,7,16,0,21,16,21,1,3,21,1,19,17,21,1,13,21,1,15,0,2,0,50,17,0,0,31,0,8,17,0,21,21,1,15,0,1,16,17,17,25,21,0,1,0,20,16,0,52,0,40,0,32,8,0,11,0,20,9,0,19,0,36,21,0,0,7,0,21,9,3,4,0,46,0,16,0,5,0,51,19,8,16,25,21,0,2,21,0,4,21,0,1,3,3,25,21,0,1,0,20,16,21,1,6,0,15,0,51,17,0,48,0,36,21,1,3,7,0,21,9,8,16,0,36,0,21,0,42,0,72,8,7,16,25,21,0,1,0,15,21,1,3,17,22,0,3,11,14,21,0,2,21,0,1,3,2,0,22,0,26,0,30,9,0,44,0,7,0,42,21,1,3,8,8,0,21,0,38,0,28,0,42,21,0,3,8,0,41,21,1,3,0,43,0,3,8,0,5,9,0,43,21,0,0,8,8,7,19,3,2,0,46,31,0,3,0,38,0,10,7,16,8,16,25,21,0,1,0,7,21,1,4,17,22,0,1,12,0,2,16,22,0,3,11,14,21,0,1,0,52,0,50,3,2,0,25,16,0,28,0,42,21,0,3,8,0,41,0,2,0,42,21,1,3,8,0,43,21,0,0,0,21,21,1,4,0,43,0,3,8,0,5,9,0,43,0,11,0,41,0,22,8,8,19,8,8,3,2,0,46,31,0,3,0,38,0,10,7,16,8,21,0,2,17,25,0,31,0,42,0,14,0,42,21,0,1,8,0,1,0,42,0,8,0,2,0,39,0,0,7,19,8,9,8,25,21,0,1,21,0,2,16,25,0,19,0,34,0,1,7,21,0,2,19,0,34,0,3,7,21,0,1,19,25,21,0,1,0,8,9,25,21,0,1,0,49,0,47,0,36,0,21,7,8,0,92,17,0,20,16,0,21,16,0,30,0,44,0,67,8,16,25]
   ,[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,-1,1.0E300,4,1.5,' ','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")]
   ,[[0,1,0,24],[0,0,321,4],[0,0,408,8],[0,0,528,3],[0,0,541,10],[0,0,792,3],[0,0,802,3],[0,0,812,3],[0,0,828,4],[0,0,879,3],[0,0,904,3],[0,0,1033,4],[0,0,1121,11],[0,0,1609,3],[1,0,1652,5],[0,0,1664,3],[0,0,1703,4],[0,0,1793,4],[1,1,1894,2],[0,0,1924,3],[0,0,1932,3],[0,0,1953,3],[0,0,1960,3]]
  );
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  return '\0';
}

let keymode=0; // 1 for backslash
doc.code.onkeydown = ev => {
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  } if (k==13 && (ev.shiftKey||ev.ctrlKey||ev.altKey||ev.metaKey)) { // *-enter
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  } if (keymode) {
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}
let typeChar = (t, c, ev) => {
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}

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=>{
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}).concat(['<a href="keymap.html" target="_blank">map</span>']).join("&#8203;"); // zero-width space
doc.kb.onmousedown = ev => {
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  if (t.nodeName === 'SPAN') {
    return typeChar(doc.code, t.textContent, ev);
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}

if (doc.demo) {
  let fonts=[["BQN386"],["DejaVu","Mod"],["Fairfax","HD"],["3270","font"],["Iosevka","Term"],["Julia","Mono"]];
  let fclass = f => f==="3270"?"f"+f:f
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    ).join("")+'select';
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  doc.kb.querySelector('select').onchange =
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}

if (doc.perm) doc.perm.onmouseover = doc.perm.onfocus = () => {
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}

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‿0‿1}\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();
  }
}