Update Table 4: Numbering systems with simple digit mappings

[FrankYFTang]

Table 4: Numbering systems with simple digit mappings
https://tc39.es/ecma402/#table-numbering-system-digits
lists "Numbering systems with simple digit mappings" that are easy to implement and mandated to be supported by ECMA402. Newer version of CLDR now include MORE type="numeric". I think we should include them into this table

        <numberingSystem id="adlm" type="numeric" digits="&#x1E950;&#x1E951;&#x1E952;&#x1E953;&#x1E954;&#x1E955;&#x1E956;&#x1E957;&#x1E958;&#x1E959;"/>
        <numberingSystem id="ahom" type="numeric" digits="&#x11730;&#x11731;&#x11732;&#x11733;&#x11734;&#x11735;&#x11736;&#x11737;&#x11738;&#x11739;"/>
       <numberingSystem id="bhks" type="numeric" digits="&#x11C50;&#x11C51;&#x11C52;&#x11C53;&#x11C54;&#x11C55;&#x11C56;&#x11C57;&#x11C58;&#x11C59;"/>
        <numberingSystem id="brah" type="numeric" digits="&#x11066;&#x11067;&#x11068;&#x11069;&#x1106A;&#x1106B;&#x1106C;&#x1106D;&#x1106E;&#x1106F;"/>
        <numberingSystem id="cakm" type="numeric" digits="&#x11136;&#x11137;&#x11138;&#x11139;&#x1113A;&#x1113B;&#x1113C;&#x1113D;&#x1113E;&#x1113F;"/>
        <numberingSystem id="cham" type="numeric" digits="꩐꩑꩒꩓꩔꩕꩖꩗꩘꩙"/>
        <numberingSystem id="diak" type="numeric" digits="&#x11950;&#x11951;&#x11952;&#x11953;&#x11954;&#x11955;&#x11956;&#x11957;&#x11958;&#x11959;"/>
        <numberingSystem id="gong" type="numeric" digits="&#x11DA0;&#x11DA1;&#x11DA2;&#x11DA3;&#x11DA4;&#x11DA5;&#x11DA6;&#x11DA7;&#x11DA8;&#x11DA9;"/>
        <numberingSystem id="gonm" type="numeric" digits="&#x11D50;&#x11D51;&#x11D52;&#x11D53;&#x11D54;&#x11D55;&#x11D56;&#x11D57;&#x11D58;&#x11D59;"/>
        <numberingSystem id="hmng" type="numeric" digits="&#x16B50;&#x16B51;&#x16B52;&#x16B53;&#x16B54;&#x16B55;&#x16B56;&#x16B57;&#x16B58;&#x16B59;"/>
        <numberingSystem id="hmnp" type="numeric" digits="&#x1E140;&#x1E141;&#x1E142;&#x1E143;&#x1E144;&#x1E145;&#x1E146;&#x1E147;&#x1E148;&#x1E149;"/>
        <numberingSystem id="java" type="numeric" digits="꧐꧑꧒꧓꧔꧕꧖꧗꧘꧙"/>
        <numberingSystem id="kali" type="numeric" digits="꤀꤁꤂꤃꤄꤅꤆꤇꤈꤉"/>
        <numberingSystem id="lana" type="numeric" digits="᪀᪁᪂᪃᪄᪅᪆᪇᪈᪉"/>
        <numberingSystem id="lanatham" type="numeric" digits="᪐᪑᪒᪓᪔᪕᪖᪗᪘᪙"/>
        <numberingSystem id="lepc" type="numeric" digits="᱀᱁᱂᱃᱄᱅᱆᱇᱈᱉"/>
        <numberingSystem id="mathbold" type="numeric" digits="&#x1D7CE;&#x1D7CF;&#x1D7D0;&#x1D7D1;&#x1D7D2;&#x1D7D3;&#x1D7D4;&#x1D7D5;&#x1D7D6;&#x1D7D7;"/>
        <numberingSystem id="mathdbl" type="numeric" digits="&#x1D7D8;&#x1D7D9;&#x1D7DA;&#x1D7DB;&#x1D7DC;&#x1D7DD;&#x1D7DE;&#x1D7DF;&#x1D7E0;&#x1D7E1;"/>
        <numberingSystem id="mathmono" type="numeric" digits="&#x1D7F6;&#x1D7F7;&#x1D7F8;&#x1D7F9;&#x1D7FA;&#x1D7FB;&#x1D7FC;&#x1D7FD;&#x1D7FE;&#x1D7FF;"/>
        <numberingSystem id="mathsanb" type="numeric" digits="&#x1D7EC;&#x1D7ED;&#x1D7EE;&#x1D7EF;&#x1D7F0;&#x1D7F1;&#x1D7F2;&#x1D7F3;&#x1D7F4;&#x1D7F5;"/>
        <numberingSystem id="mathsans" type="numeric" digits="&#x1D7E2;&#x1D7E3;&#x1D7E4;&#x1D7E5;&#x1D7E6;&#x1D7E7;&#x1D7E8;&#x1D7E9;&#x1D7EA;&#x1D7EB;"/>
        <numberingSystem id="modi" type="numeric" digits="&#x11650;&#x11651;&#x11652;&#x11653;&#x11654;&#x11655;&#x11656;&#x11657;&#x11658;&#x11659;"/>
        <numberingSystem id="mroo" type="numeric" digits="&#x16A60;&#x16A61;&#x16A62;&#x16A63;&#x16A64;&#x16A65;&#x16A66;&#x16A67;&#x16A68;&#x16A69;"/>
        <numberingSystem id="mtei" type="numeric" digits="꯰꯱꯲꯳꯴꯵꯶꯷꯸꯹"/>
        <numberingSystem id="mymrshan" type="numeric" digits="႐႑႒႓႔႕႖႗႘႙"/>
        <numberingSystem id="mymrtlng" type="numeric" digits="&#xA9F0;&#xA9F1;&#xA9F2;&#xA9F3;&#xA9F4;&#xA9F5;&#xA9F6;&#xA9F7;&#xA9F8;&#xA9F9;"/>
        <numberingSystem id="newa" type="numeric" digits="&#x11450;&#x11451;&#x11452;&#x11453;&#x11454;&#x11455;&#x11456;&#x11457;&#x11458;&#x11459;"/>
        <numberingSystem id="nkoo" type="numeric" digits="߀߁߂߃߄߅߆߇߈߉"/>
        <numberingSystem id="olck" type="numeric" digits="᱐᱑᱒᱓᱔᱕᱖᱗᱘᱙"/>
        <numberingSystem id="osma" type="numeric" digits="&#x104A0;&#x104A1;&#x104A2;&#x104A3;&#x104A4;&#x104A5;&#x104A6;&#x104A7;&#x104A8;&#x104A9;"/>
        <numberingSystem id="rohg" type="numeric" digits="&#x10D30;&#x10D31;&#x10D32;&#x10D33;&#x10D34;&#x10D35;&#x10D36;&#x10D37;&#x10D38;&#x10D39;"/>
        <numberingSystem id="saur" type="numeric" digits="꣐꣑꣒꣓꣔꣕꣖꣗꣘꣙"/>
        <numberingSystem id="segment" type="numeric" digits="&#x1FBF0;&#x1FBF1;&#x1FBF2;&#x1FBF3;&#x1FBF4;&#x1FBF5;&#x1FBF6;&#x1FBF7;&#x1FBF8;&#x1FBF9;"/>
        <numberingSystem id="shrd" type="numeric" digits="&#x111D0;&#x111D1;&#x111D2;&#x111D3;&#x111D4;&#x111D5;&#x111D6;&#x111D7;&#x111D8;&#x111D9;"/>
        <numberingSystem id="sind" type="numeric" digits="&#x112F0;&#x112F1;&#x112F2;&#x112F3;&#x112F4;&#x112F5;&#x112F6;&#x112F7;&#x112F8;&#x112F9;"/>
        <numberingSystem id="sinh" type="numeric" digits="&#x0DE6;&#x0DE7;&#x0DE8;&#x0DE9;&#x0DEA;&#x0DEB;&#x0DEC;&#x0DED;&#x0DEE;&#x0DEF;"/>
        <numberingSystem id="sora" type="numeric" digits="&#x110F0;&#x110F1;&#x110F2;&#x110F3;&#x110F4;&#x110F5;&#x110F6;&#x110F7;&#x110F8;&#x110F9;"/>
        <numberingSystem id="sund" type="numeric" digits="᮰᮱᮲᮳᮴᮵᮶᮷᮸᮹"/>
        <numberingSystem id="takr" type="numeric" digits="&#x116C0;&#x116C1;&#x116C2;&#x116C3;&#x116C4;&#x116C5;&#x116C6;&#x116C7;&#x116C8;&#x116C9;"/>
        <numberingSystem id="talu" type="numeric" digits="᧐᧑᧒᧓᧔᧕᧖᧗᧘᧙"/>
        <numberingSystem id="tirh" type="numeric" digits="&#x114D0;&#x114D1;&#x114D2;&#x114D3;&#x114D4;&#x114D5;&#x114D6;&#x114D7;&#x114D8;&#x114D9;"/>
        <numberingSystem id="vaii" type="numeric" digits="꘠꘡꘢꘣꘤꘥꘦꘧꘨꘩"/>
        <numberingSystem id="wara" type="numeric" digits="&#x118E0;&#x118E1;&#x118E2;&#x118E3;&#x118E4;&#x118E5;&#x118E6;&#x118E7;&#x118E8;&#x118E9;"/>
        <numberingSystem id="wcho" type="numeric" digits="&#x1E2F0;&#x1E2F1;&#x1E2F2;&#x1E2F3;&#x1E2F4;&#x1E2F5;&#x1E2F6;&#x1E2F7;&#x1E2F8;&#x1E2F9;"/>

[FrankYFTang]

The list I proposed here (except "diak" and "segment") are ALREADY supported by two browser engines already:

• Safari version 13.1
• Chrome / v8 m81

"diak" and "segment" are new in CLDR / ICU and Chrome will support them in m84 with the update to ICU 67.1 .

[FrankYFTang]

@anba @zbraniecki @sffc

[FrankYFTang]

You can check the browser support these or not by the following html hack

<html>
<head>
</head>
<body>
<script>
var l = ["adlm","ahom","bhks","brah","cakm","cham","diak","gong","gonm","hmng",
"hmnp","java","kali","lana","lanatham","lepc","mathbold","mathdbl","mathmono",
"mathsanb","mathsans","modi","mroo","mtei","mymrshan","mymrtlng","newa","nkoo",
"olck","osma","rohg","saur","segment","shrd","sind","sinh","sora","sund","takr",
"talu","tirh","vaii","wara","wcho"];
var out = "<ul>";

function uplus(text)
{
  return utf16common(text, "U+", " ")
}
function utf16common(text, prefix, suffix)
{
  var res = "";
  for(var i=0;i<text.length;i++)
  { 
    var ccode = text.charCodeAt(i);
    if ((ccode >= 0xd800) && (ccode < 0xdc00)) {
      // high surrogate
        if ( i+1 >= text.length ) {
          res += "[error Surrogate High only]";
        } else {
          i++;
          var nextcode = text.charCodeAt(i);
          if ((nextcode >= 0xdc00) && (nextcode < 0xe000)) {
            var ucs4 = ((ccode - 0xd800) << 10) + ((nextcode - 0xdc00)) + 0x10000;
            var tmp = "";
            for (var j = 0; j < 6; j++) {
              var cur = ucs4 & 0x000f;
              tmp = "0123456789ABCDEF".charAt(cur) + tmp;
              ucs4 >>= 4;
            }
            res += prefix + tmp + suffix;

          } else {
            res += "[error Surrogate High only]";
            i--;
          }
       }
    } else if ((ccode >= 0xdc00) && (ccode < 0xe000)) {
      res += "[error Surrogate Low only]";
    } else {
      var tmp = "";
      for (var j = 0; j < 4; j++) {
        var cur = ccode & 0x000f;
        tmp = "0123456789ABCDEF".charAt(cur) + tmp;
        ccode >>= 4;
      }
      res += prefix + tmp + suffix;
    }
  }
  return res;
}

l.forEach(function(i) {
  let nf = new Intl.NumberFormat("en-u-nu-" + i);
  if (nf.resolvedOptions().numberingSystem == i) {
    out += "<li><b>" + i + "</b> is supported and generate 123 as " + nf.format(123) +
           " [" + uplus(nf.format(123)) + "].</li>";
  } else {
    out += "<li><b>" + i + "</b> is <b>NOT</b> supported. "+ nf.resolvedOptions().numberingSystem +"</li>" ;
  }

});
out += "</ul>";
document.write(out);
</script>
</body>
</html>

[anba]

I've filed #183 and https://bugzilla.mozilla.org/show_bug.cgi?id=1413504 a while ago, but didn't make further progress on the Firefox bug, because at least at that point of time, there wasn't good font support for these scripts and it didn't seem worthwhile to invest time supporting numbering systems which can't be displayed to the user anyway.

As mentioned in #183, https://tc39.es/ecma402/#table-numbering-system-digits is currently limited to numbering systems present in CLDR 21 which can be displayed with Unicode 5 compatible characters. The restriction to Unicode 5 was put in place because that's the Unicode version supported in Windows Vista (https://searchfox.org/mozilla-central/rev/a40ef31fc9af34a99ceda6d65cdc4573d52b83d2/js/src/builtin/intl/NumberFormat.js#570-576).

Are there any compatibility concerns with other software when we start requiring to support all non-algorithmic numbering systems provided by CLDR?