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March 16, 2017 01:39
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Code groovy plutôt sale (mais très fonctionnel) adapté de http://stackoverflow.com/a/3911987/1168698 pour convertir un montant (peut en réalité être utilisé pour tout nombre) en lettres.
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Number.metaClass.formatAsCurrency { withWords = false -> | |
def puissances = ["", "mille", "million", "milliard", "billion", "billiard", "trillion", "trilliard"] | |
def dizaines = ["", "", "vingt", "trente", "quarante", "cinquante", "soixante", "soixante", "quatre-vingt", "quatre-vingt"] | |
def unites = ["", "un", "deux", "trois", "quatre", "cinq", "six", "sept", "huit", "neuf", "dix", "onze", "douze", "treize", "quatorze", "quinze", "seize", "dix-sept", "dix-huit", "dix-neuf"] | |
def chiffres = ["", ""] + unites[2..10] | |
def unitesEnLettres = { nombre -> | |
// débrayage immédiat pour 80, ce qui simplifie le code ensuite | |
if (nombre == 80) | |
return dizaines[8] + 's' | |
int dizaine = nombre / 10 | |
int unite = nombre % 10 | |
unite += dizaine in [1, 7, 9] ? 10 : 0 // 1x, 7x et 9x sont des dizaines particulières | |
def sep | |
if (unite == 0) | |
sep = '' | |
else if (unite == 1 && dizaine == 8) // 81 | |
sep = '-' | |
else if (unite == 1 || (unite == 11 && dizaine == 7)) // dizaines "et un" + 71 (mais pas 91) | |
sep = ' et ' | |
else if (dizaine > 1) // autres cas >= 20 | |
sep = '-' | |
else | |
sep = '' // < 20 | |
return "${dizaine > 0 ? dizaines[dizaine] + sep : ''}${unites[unite]}" | |
} | |
def centainesEnLettres = { nombre -> | |
int centaines = nombre / 100 | |
int reste = nombre % 100 | |
def resultat = '' | |
resultat += centaines > 0 ? "${chiffres[centaines]} cent" : '' | |
resultat += reste > 0 ? " ${unitesEnLettres(reste)}" : centaines > 1 ? 's' : '' | |
return resultat | |
} | |
def nombreEnLettres = { nombre -> | |
if (nombre == 0) | |
return "zéro" | |
def valeurs = [:] | |
for (int i in (puissances.size()..0)) { | |
def val = ((nombre / (10 as BigInteger).pow(i * 3)) as BigInteger) % 1000 | |
if (val) valeurs[i] = val | |
} | |
def resultat = '' | |
valeurs.each { p, v -> | |
switch (p) { | |
case 1: | |
resultat += (v > 1 ? "${centainesEnLettres(v)} " : '') | |
resultat += (v > 0 ? 'mille ' : '') | |
break | |
case 0: | |
resultat += centainesEnLettres(v) | |
break | |
default: | |
resultat += "${centainesEnLettres(v)} ${puissances[p]}${v > 1 ? 's' : ''} " | |
} | |
} | |
return resultat.toString() | |
} | |
if (!withWords) { | |
java.text.NumberFormat.currencyInstance.format(delegate) | |
} else { | |
def montantEntier = (delegate as BigDecimal).setScale(0, java.math.RoundingMode.FLOOR) as BigInteger | |
def res = "${nombreEnLettres(montantEntier as BigInteger)} ${montantEntier % 1000000 == 0 && montantEntier > 0 ? "d'" : ''}euro${montantEntier > 1 ? 's' : ''}" | |
def montantDecimal = ((delegate as BigDecimal) - montantEntier) * 100 | |
res += montantDecimal > 0 ? "${montantEntier > 0 ? ' et ' : ''} ${unitesEnLettres(montantDecimal as int)} centime${montantDecimal > 1 ? 's' : ''}" : "" | |
res.replaceAll(/\s+/, " ").trim() | |
} | |
} | |
def tests = [0.13, 1.76, 9.11, 19.02, 21.15, 28.17, 71.16, 72.13, 80.18, 81.19, 89.99, 90.45, 91.81, 97.83, 100.93, 101.80, 110.07, 111.01, 120, 200, 201, 232, 999, 1000, 1001, 10000, 10001, 100000, 2000000, 3000000000, 2147483647, 2147483647824, 2147483647824584, 2147483647824584568, 2147483647824584341864.15, 700000000000000000000000.76] | |
tests.each { n -> | |
println "${n.formatAsCurrency()} -> ${n.formatAsCurrency(true)}" | |
} |
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