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Add digit group separator formatting to to_human().

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This commit is contained in:
Stefan Thomas
2012-11-26 18:03:32 -08:00
parent e94765d0da
commit f1f7ccda52
2 changed files with 30 additions and 2 deletions
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18
src/js/amount.js
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@@ -478,8 +478,15 @@ Amount.prototype.to_human = function (opts)
{
opts = opts || {};
var int_part = this._value.divide(consts.bi_xns_unit).toString(10);
var fraction_part = this._value.mod(consts.bi_xns_unit).toString(10);
// Default options
if ("undefined" === typeof opts.group_sep) opts.group_sep = true;
opts.group_width = opts.group_width || 3;
var denominator = this._is_native ?
consts.bi_xns_unit :
consts.bi_10.clone().pow(-this._offset);
var int_part = this._value.divide(denominator).toString(10);
var fraction_part = this._value.mod(denominator).toString(10);
int_part = int_part.replace(/^0*/, '');
fraction_part = fraction_part.replace(/0*$/, '');
@@ -488,6 +495,13 @@ Amount.prototype.to_human = function (opts)
fraction_part = fraction_part.slice(0, opts.precision);
}
if (opts.group_sep) {
if ("string" !== typeof opts.group_sep) {
opts.group_sep = ',';
}
int_part = utils.chunkString(int_part, opts.group_width, true).join(opts.group_sep);
}
var formatted = '';
formatted += int_part.length ? int_part : '0';
formatted += fraction_part.length ? '.'+fraction_part : '';

14
src/js/utils.js
View File

@@ -70,6 +70,19 @@ var stringToArray = function (s) {
return a;
};
var chunkString = function (str, n, leftAlign) {
var ret = [];
var i=0, len=str.length;
if (leftAlign) {
i = str.length % n;
if (i) ret.push(str.slice(0, i));
}
for(; i < len; i += n) {
ret.push(str.slice(i, n+i));
}
return ret;
};
var logObject = function (msg, obj) {
console.log(msg, JSON.stringify(obj, undefined, 2));
};
@@ -81,5 +94,6 @@ exports.hexToString = hexToString;
exports.stringToArray = stringToArray;
exports.stringToHex = stringToHex;
exports.logObject = logObject;
exports.chunkString = chunkString;
// vim:sw=2:sts=2:ts=8:et