Wrong spellout cardinal for et locale about node-cldr

[papandreou]

Confirmed (as for the expected Estonian output, I'm taking your word for it :).

After stepping through the generated code by hand, I'm afraid I misread the spec when I implemented it.

@ragulka, could you take a look at the source data and tell me approximately where it goes wrong? https://github.com/papandreou/node-cldr/blob/master/3rdparty/cldr/common/rbnf/et.xml

[ragulka]

@papandreou I could, but I'm not sure what you mean by "where it goes wrong". The spellout for estonian that I posted originally, is wrong from the first letter. It should start with "kaks miljonit", but it starts with "üks miljon".

[papandreou]

I mean try reading the rbnf rules I linked to and point out where the code is picking the wrong production. It's not that hard to "hand run" it when you know the language. I tried and failed with your example, but I have no trouble with Danish, English, and German rbnfs.

[papandreou]

Here's the generated code:

console.log(require('./lib/cldr').extractRbnfFunctionByType('et').renderSpelloutCardinal.toString())
function () {
    var isFractional = n !== Math.floor(n);
    if (n < 0) return "miinus " + this.renderSpelloutCardinal(-n);
    if (isFractional && n > 1) return this.renderSpelloutCardinal(Math.floor(n)) + " koma " + this.renderSpelloutCardinal(parseInt(String(n).replace(/\d*\./, ""), 10));
    if (n >= 1e18) return this.renderNumber(n, "#,##0");
    if (n >= 2e15) return this.renderSpelloutCardinal(Math.floor(n / 2e15)) + " biljardit" + (n === 2e15 ? "" : " " + this.renderSpelloutCardinal(n % 1e15));
    if (n >= 1e15) return this.renderSpelloutCardinal(Math.floor(n / 1e15)) + " biljard" + (n === 1e15 ? "" : " " + this.renderSpelloutCardinal(n % 1e14));
    if (n >= 2e12) return this.renderSpelloutCardinal(Math.floor(n / 2e12)) + " biljonit" + (n === 2e12 ? "" : " " + this.renderSpelloutCardinal(n % 1e12));
    if (n >= 1e12) return this.renderSpelloutCardinal(Math.floor(n / 1e12)) + " biljon" + (n === 1e12 ? "" : " " + this.renderSpelloutCardinal(n % 1e11));
    if (n >= 2e9) return this.renderSpelloutCardinal(Math.floor(n / 2e9)) + " miljardit" + (n === 2e9 ? "" : " " + this.renderSpelloutCardinal(n % 1e9));
    if (n >= 1e9) return this.renderSpelloutCardinal(Math.floor(n / 1e9)) + " miljard" + (n === 1e9 ? "" : " " + this.renderSpelloutCardinal(n % 1e8));
    if (n >= 2e6) return this.renderSpelloutCardinal(Math.floor(n / 2e6)) + " miljonit" + (n === 2e6 ? "" : " " + this.renderSpelloutCardinal(n % 1e6));
    if (n >= 1e6) return this.renderSpelloutCardinal(Math.floor(n / 1e6)) + " miljon" + (n === 1e6 ? "" : " " + this.renderSpelloutCardinal(n % 1e5));
    if (n >= 1e3) return this.renderSpelloutCardinal(Math.floor(n / 1e3)) + " tuhat" + (n === 1e3 ? "" : " " + this.renderSpelloutCardinal(n % 100));
    if (n >= 100) return this.renderSpelloutCardinal(Math.floor(n / 100)) + "sada" + (n === 100 ? "" : " " + this.renderSpelloutCardinal(n % 100));
    if (n >= 20) return this.renderSpelloutCardinal(Math.floor(n / 20)) + "kümmend" + (n === 20 ? "" : " " + this.renderSpelloutCardinal(n % 10));
    if (n >= 11) return this.renderSpelloutCardinal(n % 10) + "teist";
    if (n >= 10) return "kümme";
    if (n >= 9) return "üheksa";
    if (n >= 8) return "kaheksa";
    if (n >= 7) return "seitse";
    if (n >= 6) return "kuus";
    if (n >= 5) return "viis";
    if (n >= 4) return "neli";
    if (n >= 3) return "kolm";
    if (n >= 2) return "kaks";
    if (n >= 1) return "üks";
    if (n >= 0) return "null"
};

[ragulka]

The rules and the generated code seem fine to me. I am not sure where it goes wrong, then. Can there be an issue with the number that's being passed to it?

[papandreou]

Can there be an issue with the number that's being passed to it?
I don't think so. How could there be?

The bug has to be somewhere in that generated code.

Maybe you could try single-stepping through the below?

var rbnf = {
    renderNumber: function (n) {
        return n.toFixed(3);
    },
    renderSpelloutCardinal = function (n) {
        var isFractional = n !== Math.floor(n);
        if (n < 0) return "miinus " + this.renderSpelloutCardinal(-n);
        if (isFractional && n > 1) return this.renderSpelloutCardinal(Math.floor(n)) + " koma " + this.renderSpelloutCardinal(parseInt(String(n).replace(/\d*\./, ""), 10));
        if (n >= 1e18) return this.renderNumber(n, "#,##0");
        if (n >= 2e15) return this.renderSpelloutCardinal(Math.floor(n / 2e15)) + " biljardit" + (n === 2e15 ? "" : " " + this.renderSpelloutCardinal(n % 1e15));
        if (n >= 1e15) return this.renderSpelloutCardinal(Math.floor(n / 1e15)) + " biljard" + (n === 1e15 ? "" : " " + this.renderSpelloutCardinal(n % 1e14));
        if (n >= 2e12) return this.renderSpelloutCardinal(Math.floor(n / 2e12)) + " biljonit" + (n === 2e12 ? "" : " " + this.renderSpelloutCardinal(n % 1e12));
        if (n >= 1e12) return this.renderSpelloutCardinal(Math.floor(n / 1e12)) + " biljon" + (n === 1e12 ? "" : " " + this.renderSpelloutCardinal(n % 1e11));
        if (n >= 2e9) return this.renderSpelloutCardinal(Math.floor(n / 2e9)) + " miljardit" + (n === 2e9 ? "" : " " + this.renderSpelloutCardinal(n % 1e9));
        if (n >= 1e9) return this.renderSpelloutCardinal(Math.floor(n / 1e9)) + " miljard" + (n === 1e9 ? "" : " " + this.renderSpelloutCardinal(n % 1e8));
        if (n >= 2e6) return this.renderSpelloutCardinal(Math.floor(n / 2e6)) + " miljonit" + (n === 2e6 ? "" : " " + this.renderSpelloutCardinal(n % 1e6));
        if (n >= 1e6) return this.renderSpelloutCardinal(Math.floor(n / 1e6)) + " miljon" + (n === 1e6 ? "" : " " + this.renderSpelloutCardinal(n % 1e5));
        if (n >= 1e3) return this.renderSpelloutCardinal(Math.floor(n / 1e3)) + " tuhat" + (n === 1e3 ? "" : " " + this.renderSpelloutCardinal(n % 100));
        if (n >= 100) return this.renderSpelloutCardinal(Math.floor(n / 100)) + "sada" + (n === 100 ? "" : " " + this.renderSpelloutCardinal(n % 100));
        if (n >= 20) return this.renderSpelloutCardinal(Math.floor(n / 20)) + "kümmend" + (n === 20 ? "" : " " + this.renderSpelloutCardinal(n % 10));
        if (n >= 11) return this.renderSpelloutCardinal(n % 10) + "teist";
        if (n >= 10) return "kümme";
        if (n >= 9) return "üheksa";
        if (n >= 8) return "kaheksa";
        if (n >= 7) return "seitse";
        if (n >= 6) return "kuus";
        if (n >= 5) return "viis";
        if (n >= 4) return "neli";
        if (n >= 3) return "kolm";
        if (n >= 2) return "kaks";
        if (n >= 1) return "üks";
        if (n >= 0) return "null"
    }
};

console.log(rbnf(2439871));

[ragulka]

Okay, here are my initial findings:

• When a string representing a number is supplied, the results are unexpected. I think there should be a Number(n); in the beginning of the function just to make sure we are dealing with the number type
• Estonian spellout starts going wrong with this line:

javascript
if (n >= 20) return renderSpelloutCardinal(Math.floor(n / 20)) + "kümmend" + (n === 20 ? "" : " " + renderSpelloutCardinal(n % 10));

It always produces the wrong result. The division should be with 10 instead of 20. When I changed it, it seemed the problem with that part.
- This line:

``` javascript
    if (n >= 1e3) return renderSpelloutCardinal(Math.floor(n / 1e3)) + " tuhat" + (n === 1e3 ? "" : " " + renderSpelloutCardinal(n % 100));

is using a wrong modulus. It should be n % 1e3 instead of n % 100.

• Everything above thousands is using a wrong division when dealing with plurals, for example:
  if (n >= 2e9) return renderSpelloutCardinal(Math.floor(n / 2e9)) ... should be if (n >= 2e9) return renderSpelloutCardinal(Math.floor(n / 1e9))

Here's what the complete spellout cardinal function should look like for estonian language:

renderSpelloutCardinal = function (n) {
    var isFractional = n !== Math.floor(n);
    if (n < 0) return "miinus " + renderSpelloutCardinal(-n);
    if (isFractional && n > 1) return renderSpelloutCardinal(Math.floor(n)) + " koma " + renderSpelloutCardinal(parseInt(String(n).replace(/\d*\./, ""), 10));
    if (n >= 1e18) return renderNumber(n, "#,##0");
    if (n >= 2e15) return renderSpelloutCardinal(Math.floor(n / 1e15)) + " biljardit" + (n === 2e15 ? "" : " " + renderSpelloutCardinal(n % 1e15));
    if (n >= 1e15) return renderSpelloutCardinal(Math.floor(n / 1e15)) + " biljard" + (n === 1e15 ? "" : " " + renderSpelloutCardinal(n % 1e14));
    if (n >= 2e12) return renderSpelloutCardinal(Math.floor(n / 1e12)) + " biljonit" + (n === 2e12 ? "" : " " + renderSpelloutCardinal(n % 1e12));
    if (n >= 1e12) return renderSpelloutCardinal(Math.floor(n / 1e12)) + " biljon" + (n === 1e12 ? "" : " " + renderSpelloutCardinal(n % 1e11));
    if (n >= 2e9) return renderSpelloutCardinal(Math.floor(n / 1e9)) + " miljardit" + (n === 2e9 ? "" : " " + renderSpelloutCardinal(n % 1e9));
    if (n >= 1e9) return renderSpelloutCardinal(Math.floor(n / 1e9)) + " miljard" + (n === 1e9 ? "" : " " + renderSpelloutCardinal(n % 1e8));
    if (n >= 2e6) return renderSpelloutCardinal(Math.floor(n / 1e6)) + " miljonit" + (n === 2e6 ? "" : " " + renderSpelloutCardinal(n % 1e6));
    if (n >= 1e6) return renderSpelloutCardinal(Math.floor(n / 1e6)) + " miljon" + (n === 1e6 ? "" : " " + renderSpelloutCardinal(n % 1e5));
    if (n >= 1e3) return renderSpelloutCardinal(Math.floor(n / 1e3)) + " tuhat" + (n === 1e3 ? "" : " " + renderSpelloutCardinal(n % 1e3));
    if (n >= 100) return renderSpelloutCardinal(Math.floor(n / 100)) + "sada" + (n === 100 ? "" : " " + renderSpelloutCardinal(n % 100));
    if (n >= 20) return renderSpelloutCardinal(Math.floor(n / 10)) + "kümmend" + (n === 20 ? "" : " " + renderSpelloutCardinal(n % 10));
    if (n >= 11) return renderSpelloutCardinal(n % 10) + "teist";
    if (n >= 10) return "kümme";
    if (n >= 9) return "üheksa";
    if (n >= 8) return "kaheksa";
    if (n >= 7) return "seitse";
    if (n >= 6) return "kuus";
    if (n >= 5) return "viis";
    if (n >= 4) return "neli";
    if (n >= 3) return "kolm";
    if (n >= 2) return "kaks";
    if (n >= 1) return "üks";
    if (n >= 0) return "null"
}

I tested the above function with several different numbers and it worked flawlessly each time.

[papandreou]

Great, that's extremely helpful. That means there's at least one bug in https://github.com/papandreou/node-cldr/blob/master/lib/CldrRbnfRuleSet.js

I pushed a branch called issue12 with a failing test. You're very welcome to take a stab at it.

After checking out the branch and running run npm install --dev, you should be able to run npm test and get this output:

andreas@papandreou:~/work/node-cldr$ npm test

> [email protected] test /home/andreas/work/node-cldr
> mocha --check-leaks


  ․․․․․․․․․․․․․․․․

  14 passing (91ms)
  1 pending
  1 failing

  1) extractRbnfFunctionByType #renderSpelloutCardinal should render a number correctly in Estonian (regression test for #12):

      Error: expected 'üks miljonit nelisada ükskümmend üheksa tuhat kolmkümmend üks' to equal 'kaks miljonit nelisada kolmkümmend üheksa tuhat kaheksasada seitsekümmend üks'
      + expected - actual

      +kaks miljonit nelisada kolmkümmend üheksa tuhat kaheksasada seitsekümmend üks
      -üks miljonit nelisada ükskümmend üheksa tuhat kolmkümmend üks

      at Context.<anonymous> (/home/andreas/work/node-cldr/test/extractRbnfFunctionByType.js:8:13)
      at Test.Runnable.run (/home/andreas/work/node-cldr/node_modules/mocha/lib/runnable.js:221:32)
      at Runner.runTest (/home/andreas/work/node-cldr/node_modules/mocha/lib/runner.js:374:10)
      at /home/andreas/work/node-cldr/node_modules/mocha/lib/runner.js:452:12
      at next (/home/andreas/work/node-cldr/node_modules/mocha/lib/runner.js:299:14)
      at /home/andreas/work/node-cldr/node_modules/mocha/lib/runner.js:309:7
      at next (/home/andreas/work/node-cldr/node_modules/mocha/lib/runner.js:247:23)
      at Object._onImmediate (/home/andreas/work/node-cldr/node_modules/mocha/lib/runner.js:276:5)
      at processImmediate [as _immediateCallback] (timers.js:330:15)



npm ERR! weird error 1
npm ERR! not ok code 0

[papandreou]

Fixed in 2.1.1.

I added your complete expected function to the test (36c26a7), but had to change some divisors to make it all fit (441102b). Does that look OK?

[ragulka]

Looks good now, thanks!

[papandreou]

Great, thanks for the effort. Closing.