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index.js
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/****************************************************************************
________________________________________________________________________ *
About : Convertit jusqu'à 999 999 999 999 999 (billion) *
avec respect des accords *
_________________________________________________________________________ *
Auteur : GALA OUSSE Brice, Engineer programmer of management *
Mail : bricegala@yahoo.fr, bricegala@gmail.com *
Tél : +237 99 37 95 83/ +237 79 99 82 80 *
Copyright : avril 2007 *
_________________________________________________________________________ *
*
*/
function Unite( nombre ){
let unite;
switch( nombre ){
case 0: unite = "zéro"; break;
case 1: unite = "un"; break;
case 2: unite = "deux"; break;
case 3: unite = "trois"; break;
case 4: unite = "quatre"; break;
case 5: unite = "cinq"; break;
case 6: unite = "six"; break;
case 7: unite = "sept"; break;
case 8: unite = "huit"; break;
case 9: unite = "neuf"; break;
}//fin switch
return unite;
}//-----------------------------------------------------------------------
function Dizaine( nombre ){
let dizaine;
switch( nombre ){
case 10: dizaine = "dix"; break;
case 11: dizaine = "onze"; break;
case 12: dizaine = "douze"; break;
case 13: dizaine = "treize"; break;
case 14: dizaine = "quatorze"; break;
case 15: dizaine = "quinze"; break;
case 16: dizaine = "seize"; break;
case 17: dizaine = "dix-sept"; break;
case 18: dizaine = "dix-huit"; break;
case 19: dizaine = "dix-neuf"; break;
case 20: dizaine = "vingt"; break;
case 30: dizaine = "trente"; break;
case 40: dizaine = "quarante"; break;
case 50: dizaine = "cinquante"; break;
case 60: dizaine = "soixante"; break;
case 70: dizaine = "soixante-dix"; break;
case 80: dizaine = "quatre-vingt"; break;
case 90: dizaine = "quatre-vingt-dix"; break;
}//fin switch
return dizaine;
}//-----------------------------------------------------------------------
function NumberToLetter( nombre ){
let i, j, n, quotient, reste, nb ;
let ch
let numberToLetter='';
//__________________________________
if( nombre.toString().replace( / /gi, "" ).length > 15 ) return "dépassement de capacité";
if( isNaN(nombre.toString().replace( / /gi, "" )) ) return "Nombre non valide";
nb = parseFloat(nombre.toString().replace( / /gi, "" ));
if( Math.ceil(nb) != nb ) return "Nombre avec virgule non géré.";
n = nb.toString().length;
switch( n ){
case 1: numberToLetter = Unite(nb); break;
case 2: if( nb > 19 ){
quotient = Math.floor(nb / 10);
reste = nb % 10;
if( nb < 71 || (nb > 79 && nb < 91) ){
if( reste == 0 ) numberToLetter = Dizaine(quotient * 10);
if( reste == 1 ) numberToLetter = Dizaine(quotient * 10) + "-et-" + Unite(reste);
if( reste > 1 ) numberToLetter = Dizaine(quotient * 10) + "-" + Unite(reste);
}else numberToLetter = Dizaine((quotient - 1) * 10) + "-" + Dizaine(10 + reste);
}else numberToLetter = Dizaine(nb);
break;
case 3: quotient = Math.floor(nb / 100);
reste = nb % 100;
if( quotient == 1 && reste == 0 ) numberToLetter = "cent";
if( quotient == 1 && reste != 0 ) numberToLetter = "cent" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = Unite(quotient) + " cents";
if( quotient > 1 && reste != 0 ) numberToLetter = Unite(quotient) + " cent " + NumberToLetter(reste);
break;
case 4 : quotient = Math.floor(nb / 1000);
reste = nb - quotient * 1000;
if( quotient == 1 && reste == 0 ) numberToLetter = "mille";
if( quotient == 1 && reste != 0 ) numberToLetter = "mille" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " mille";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " mille " + NumberToLetter(reste);
break;
case 5 : quotient = Math.floor(nb / 1000);
reste = nb - quotient * 1000;
if( quotient == 1 && reste == 0 ) numberToLetter = "mille";
if( quotient == 1 && reste != 0 ) numberToLetter = "mille" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " mille";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " mille " + NumberToLetter(reste);
break;
case 6 : quotient = Math.floor(nb / 1000);
reste = nb - quotient * 1000;
if( quotient == 1 && reste == 0 ) numberToLetter = "mille";
if( quotient == 1 && reste != 0 ) numberToLetter = "mille" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " mille";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " mille " + NumberToLetter(reste);
break;
case 7: quotient = Math.floor(nb / 1000000);
reste = nb % 1000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un million";
if( quotient == 1 && reste != 0 ) numberToLetter = "un million" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " millions";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " millions " + NumberToLetter(reste);
break;
case 8: quotient = Math.floor(nb / 1000000);
reste = nb % 1000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un million";
if( quotient == 1 && reste != 0 ) numberToLetter = "un million" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " millions";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " millions " + NumberToLetter(reste);
break;
case 9: quotient = Math.floor(nb / 1000000);
reste = nb % 1000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un million";
if( quotient == 1 && reste != 0 ) numberToLetter = "un million" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " millions";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " millions " + NumberToLetter(reste);
break;
case 10: quotient = Math.floor(nb / 1000000000);
reste = nb - quotient * 1000000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un milliard";
if( quotient == 1 && reste != 0 ) numberToLetter = "un milliard" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " milliards";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " milliards " + NumberToLetter(reste);
break;
case 11: quotient = Math.floor(nb / 1000000000);
reste = nb - quotient * 1000000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un milliard";
if( quotient == 1 && reste != 0 ) numberToLetter = "un milliard" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " milliards";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " milliards " + NumberToLetter(reste);
break;
case 12: quotient = Math.floor(nb / 1000000000);
reste = nb - quotient * 1000000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un milliard";
if( quotient == 1 && reste != 0 ) numberToLetter = "un milliard" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " milliards";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " milliards " + NumberToLetter(reste);
break;
case 13: quotient = Math.floor(nb / 1000000000000);
reste = nb - quotient * 1000000000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un billion";
if( quotient == 1 && reste != 0 ) numberToLetter = "un billion" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " billions";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " billions " + NumberToLetter(reste);
break;
case 14: quotient = Math.floor(nb / 1000000000000);
reste = nb - quotient * 1000000000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un billion";
if( quotient == 1 && reste != 0 ) numberToLetter = "un billion" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " billions";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " billions " + NumberToLetter(reste);
break;
case 15: quotient = Math.floor(nb / 1000000000000);
reste = nb - quotient * 1000000000000;
if( quotient == 1 && reste == 0 ) numberToLetter = "un billion";
if( quotient == 1 && reste != 0 ) numberToLetter = "un billion" + " " + NumberToLetter(reste);
if( quotient > 1 && reste == 0 ) numberToLetter = NumberToLetter(quotient) + " billions";
if( quotient > 1 && reste != 0 ) numberToLetter = NumberToLetter(quotient) + " billions " + NumberToLetter(reste);
break;
}//fin switch
/*respect de l'accord de quatre-vingt*/
if( numberToLetter.substr(numberToLetter.length-"quatre-vingt".length,"quatre-vingt".length) == "quatre-vingt" ) numberToLetter = numberToLetter + "s";
return numberToLetter;
}
// MoneyToLetter(12.05, 'euro') => douze euros et 5 centimes
function MoneyToLetter(nombre, devise) {
let parts = `${nombre}`.split('.');
let integerpart = parts[0];
let integerpartstring = NumberToLetter(integerpart);
let virgulepartstring = '';
if (parts.length > 1) {
let virgulepart = parts[1];
// convert to cents : 0,5 => 0,50
if (virgulepart > 0 && virgulepart < 10)
virgulepart = `${virgulepart * 10}`;
// remove sub cents : 0,5123 => 0,51
virgulepart = Math.round(virgulepart * 100) / 100;
virgulepartstring = NumberToLetter(virgulepart);
}
return `${integerpartstring} ${devise}${integerpart <= 1 ? '' : 's'}${virgulepartstring ? ` et ${virgulepartstring} centimes` : ''}`;
}
exports.MoneyToLetter = MoneyToLetter;
exports.NumberToLetter = NumberToLetter;
exports.Dizaine = Dizaine;
exports.Unite =Unite;