Your IP : 216.73.216.86
// [[fill]align][sign][symbol][0][width][,][.precision][~][type]
var re = /^(?:(.)?([<>=^]))?([+\-( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?(~)?([a-z%])?$/i;
export default function formatSpecifier(specifier) {
return new FormatSpecifier(specifier);
}
formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof
function FormatSpecifier(specifier) {
if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);
var match;
this.fill = match[1] || " ";
this.align = match[2] || ">";
this.sign = match[3] || "-";
this.symbol = match[4] || "";
this.zero = !!match[5];
this.width = match[6] && +match[6];
this.comma = !!match[7];
this.precision = match[8] && +match[8].slice(1);
this.trim = !!match[9];
this.type = match[10] || "";
}
FormatSpecifier.prototype.toString = function() {
return this.fill
+ this.align
+ this.sign
+ this.symbol
+ (this.zero ? "0" : "")
+ (this.width == null ? "" : Math.max(1, this.width | 0))
+ (this.comma ? "," : "")
+ (this.precision == null ? "" : "." + Math.max(0, this.precision | 0))
+ (this.trim ? "~" : "")
+ this.type;
};