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- define(function() {
- function sprintf () {
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- var regex = /%%|%(\d+\$)?([-+\'#0 ]*)(\*\d+\$|\*|\d+)?(\.(\*\d+\$|\*|\d+))?([scboxXuideEfFgG])/g;
- var a = arguments,
- i = 0,
- format = a[i++];
-
- var pad = function (str, len, chr, leftJustify) {
- if (!chr) {
- chr = ' ';
- }
- var padding = (str.length >= len) ? '' : Array(1 + len - str.length >>> 0).join(chr);
- return leftJustify ? str + padding : padding + str;
- };
-
- var justify = function (value, prefix, leftJustify, minWidth, zeroPad, customPadChar) {
- var diff = minWidth - value.length;
- if (diff > 0) {
- if (leftJustify || !zeroPad) {
- value = pad(value, minWidth, customPadChar, leftJustify);
- } else {
- value = value.slice(0, prefix.length) + pad('', diff, '0', true) + value.slice(prefix.length);
- }
- }
- return value;
- };
-
- var formatBaseX = function (value, base, prefix, leftJustify, minWidth, precision, zeroPad) {
-
- var number = value >>> 0;
- prefix = prefix && number && {
- '2': '0b',
- '8': '0',
- '16': '0x'
- }[base] || '';
- value = prefix + pad(number.toString(base), precision || 0, '0', false);
- return justify(value, prefix, leftJustify, minWidth, zeroPad);
- };
-
- var formatString = function (value, leftJustify, minWidth, precision, zeroPad, customPadChar) {
- if (precision != null) {
- value = value.slice(0, precision);
- }
- return justify(value, '', leftJustify, minWidth, zeroPad, customPadChar);
- };
-
- var doFormat = function (substring, valueIndex, flags, minWidth, _, precision, type) {
- var number;
- var prefix;
- var method;
- var textTransform;
- var value;
- if (substring == '%%') {
- return '%';
- }
-
- var leftJustify = false,
- positivePrefix = '',
- zeroPad = false,
- prefixBaseX = false,
- customPadChar = ' ';
- var flagsl = flags.length;
- for (var j = 0; flags && j < flagsl; j++) {
- switch (flags.charAt(j)) {
- case ' ':
- positivePrefix = ' ';
- break;
- case '+':
- positivePrefix = '+';
- break;
- case '-':
- leftJustify = true;
- break;
- case "'":
- customPadChar = flags.charAt(j + 1);
- break;
- case '0':
- zeroPad = true;
- break;
- case '#':
- prefixBaseX = true;
- break;
- }
- }
-
-
- if (!minWidth) {
- minWidth = 0;
- } else if (minWidth == '*') {
- minWidth = +a[i++];
- } else if (minWidth.charAt(0) == '*') {
- minWidth = +a[minWidth.slice(1, -1)];
- } else {
- minWidth = +minWidth;
- }
-
- if (minWidth < 0) {
- minWidth = -minWidth;
- leftJustify = true;
- }
- if (!isFinite(minWidth)) {
- throw new Error('sprintf: (minimum-)width must be finite');
- }
- if (!precision) {
- precision = 'fFeE'.indexOf(type) > -1 ? 6 : (type == 'd') ? 0 : undefined;
- } else if (precision == '*') {
- precision = +a[i++];
- } else if (precision.charAt(0) == '*') {
- precision = +a[precision.slice(1, -1)];
- } else {
- precision = +precision;
- }
-
- value = valueIndex ? a[valueIndex.slice(0, -1)] : a[i++];
- switch (type) {
- case 's':
- return formatString(String(value), leftJustify, minWidth, precision, zeroPad, customPadChar);
- case 'c':
- return formatString(String.fromCharCode(+value), leftJustify, minWidth, precision, zeroPad);
- case 'b':
- return formatBaseX(value, 2, prefixBaseX, leftJustify, minWidth, precision, zeroPad);
- case 'o':
- return formatBaseX(value, 8, prefixBaseX, leftJustify, minWidth, precision, zeroPad);
- case 'x':
- return formatBaseX(value, 16, prefixBaseX, leftJustify, minWidth, precision, zeroPad);
- case 'X':
- return formatBaseX(value, 16, prefixBaseX, leftJustify, minWidth, precision, zeroPad).toUpperCase();
- case 'u':
- return formatBaseX(value, 10, prefixBaseX, leftJustify, minWidth, precision, zeroPad);
- case 'i':
- case 'd':
- number = +value || 0;
- number = Math.round(number - number % 1);
- prefix = number < 0 ? '-' : positivePrefix;
- value = prefix + pad(String(Math.abs(number)), precision, '0', false);
- return justify(value, prefix, leftJustify, minWidth, zeroPad);
- case 'e':
- case 'E':
- case 'f':
- case 'F':
- case 'g':
- case 'G':
- number = +value;
- prefix = number < 0 ? '-' : positivePrefix;
- method = ['toExponential', 'toFixed', 'toPrecision']['efg'.indexOf(type.toLowerCase())];
- textTransform = ['toString', 'toUpperCase']['eEfFgG'.indexOf(type) % 2];
- value = prefix + Math.abs(number)[method](precision);
- return justify(value, prefix, leftJustify, minWidth, zeroPad)[textTransform]();
- default:
- return substring;
- }
- };
- return format.replace(regex, doFormat);
- }
- return sprintf;
- });
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