devextreme/esm/localization/ldml/number.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/localization/ldml/number.js)
 * Version: 21.1.4
 * Build date: Mon Jun 21 2021
 *
 * Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
import {
    fitIntoRange
} from "../../core/utils/math";
import {
    toFixed
} from "../utils";
var DEFAULT_CONFIG = {
    thousandsSeparator: ",",
    decimalSeparator: "."
};
var ESCAPING_CHAR = "'";
var MAXIMUM_NUMBER_LENGTH = 15;

function getGroupSizes(formatString) {
    return formatString.split(",").slice(1).map((function(str) {
        return str.split("").filter((function(char) {
            return "#" === char || "0" === char
        })).length
    }))
}

function getSignParts(format) {
    var signParts = format.split(";");
    if (1 === signParts.length) {
        signParts.push("-" + signParts[0])
    }
    return signParts
}

function reverseString(str) {
    return str.toString().split("").reverse().join("")
}

function isPercentFormat(format) {
    return -1 !== format.indexOf("%") && !format.match(/'[^']*%[^']*'/g)
}

function removeStubs(str) {
    return str.replace(/'.+'/g, "")
}

function getNonRequiredDigitCount(floatFormat) {
    if (!floatFormat) {
        return 0
    }
    var format = removeStubs(floatFormat);
    return format.length - format.replace(/[#]/g, "").length
}

function getRequiredDigitCount(floatFormat) {
    if (!floatFormat) {
        return 0
    }
    var format = removeStubs(floatFormat);
    return format.length - format.replace(/[0]/g, "").length
}

function normalizeValueString(valuePart, minDigitCount, maxDigitCount) {
    if (!valuePart) {
        return ""
    }
    if (valuePart.length > maxDigitCount) {
        valuePart = valuePart.substr(0, maxDigitCount)
    }
    while (valuePart.length > minDigitCount && "0" === valuePart.slice(-1)) {
        valuePart = valuePart.substr(0, valuePart.length - 1)
    }
    while (valuePart.length < minDigitCount) {
        valuePart += "0"
    }
    return valuePart
}

function applyGroups(valueString, groupSizes, thousandsSeparator) {
    if (!groupSizes.length) {
        return valueString
    }
    var groups = [];
    var index = 0;
    while (valueString) {
        var groupSize = groupSizes[index];
        if (!groupSize) {
            break
        }
        groups.push(valueString.slice(0, groupSize));
        valueString = valueString.slice(groupSize);
        if (index < groupSizes.length - 1) {
            index++
        }
    }
    return groups.join(thousandsSeparator)
}

function formatNumberPart(format, valueString) {
    return format.split(ESCAPING_CHAR).map((function(formatPart, escapeIndex) {
        var isEscape = escapeIndex % 2;
        if (!formatPart && isEscape) {
            return ESCAPING_CHAR
        }
        return isEscape ? formatPart : formatPart.replace(/[,#0]+/, valueString)
    })).join("")
}

function getFloatPointIndex(format) {
    var isEscape = false;
    for (var index = 0; index < format.length; index++) {
        if ("'" === format[index]) {
            isEscape = !isEscape
        }
        if ("." === format[index] && !isEscape) {
            return index
        }
    }
    return format.length
}
export function getFormatter(format, config) {
    config = config || DEFAULT_CONFIG;
    return function(value) {
        if ("number" !== typeof value || isNaN(value)) {
            return ""
        }
        var signFormatParts = getSignParts(format);
        var isPositiveZero = 1 / value === 1 / 0;
        var isPositive = value > 0 || isPositiveZero;
        var numberFormat = signFormatParts[isPositive ? 0 : 1];
        if (isPercentFormat(numberFormat)) {
            value *= 100
        }
        if (!isPositive) {
            value = -value
        }
        var floatPointIndex = getFloatPointIndex(numberFormat);
        var floatFormatParts = [numberFormat.substr(0, floatPointIndex), numberFormat.substr(floatPointIndex + 1)];
        var minFloatPrecision = getRequiredDigitCount(floatFormatParts[1]);
        var maxFloatPrecision = minFloatPrecision + getNonRequiredDigitCount(floatFormatParts[1]);
        var minIntegerPrecision = getRequiredDigitCount(floatFormatParts[0]);
        var maxIntegerPrecision = getNonRequiredDigitCount(floatFormatParts[0]) || config.unlimitedIntegerDigits ? void 0 : minIntegerPrecision;
        var integerLength = Math.floor(value).toString().length;
        var floatPrecision = fitIntoRange(maxFloatPrecision, 0, MAXIMUM_NUMBER_LENGTH - integerLength);
        var groupSizes = getGroupSizes(floatFormatParts[0]).reverse();
        var valueParts = toFixed(value, floatPrecision < 0 ? 0 : floatPrecision).split(".");
        var valueIntegerPart = normalizeValueString(reverseString(valueParts[0]), minIntegerPrecision, maxIntegerPrecision);
        var valueFloatPart = normalizeValueString(valueParts[1], minFloatPrecision, maxFloatPrecision);
        valueIntegerPart = applyGroups(valueIntegerPart, groupSizes, config.thousandsSeparator);
        var integerString = reverseString(formatNumberPart(reverseString(floatFormatParts[0]), valueIntegerPart));
        var floatString = maxFloatPrecision ? formatNumberPart(floatFormatParts[1], valueFloatPart) : "";
        var result = integerString + (floatString.match(/\d/) ? config.decimalSeparator : "") + floatString;
        return result
    }
}

function parseValue(text, isPercent, isNegative) {
    var value = (isPercent ? .01 : 1) * parseFloat(text) || 0;
    return isNegative ? -value : value
}

function prepareValueText(valueText, formatter, isPercent, isIntegerPart) {
    var nextValueText = valueText;
    var char;
    var text;
    var nextText;
    do {
        if (nextText) {
            char = text.length === nextText.length ? "0" : "1";
            valueText = isIntegerPart ? char + valueText : valueText + char
        }
        text = nextText || formatter(parseValue(nextValueText, isPercent));
        nextValueText = isIntegerPart ? "1" + nextValueText : nextValueText + "1";
        nextText = formatter(parseValue(nextValueText, isPercent))
    } while (text !== nextText && (isIntegerPart ? text.length === nextText.length : text.length <= nextText.length));
    if (isIntegerPart && nextText.length > text.length) {
        var hasGroups = -1 === formatter(12345).indexOf("12345");
        do {
            valueText = "1" + valueText
        } while (hasGroups && parseValue(valueText, isPercent) < 1e5)
    }
    return valueText
}

function getFormatByValueText(valueText, formatter, isPercent, isNegative) {
    var format = formatter(parseValue(valueText, isPercent, isNegative));
    var valueTextParts = valueText.split(".");
    var valueTextWithModifiedFloat = valueTextParts[0] + ".3" + valueTextParts[1].slice(1);
    var valueWithModifiedFloat = parseValue(valueTextWithModifiedFloat, isPercent, isNegative);
    var decimalSeparatorIndex = formatter(valueWithModifiedFloat).indexOf("3") - 1;
    format = format.replace(/(\d)\D(\d)/g, "$1,$2");
    if (decimalSeparatorIndex >= 0) {
        format = format.slice(0, decimalSeparatorIndex) + "." + format.slice(decimalSeparatorIndex + 1)
    }
    format = format.replace(/1+/, "1").replace(/1/g, "#");
    if (!isPercent) {
        format = format.replace("%", "'%'")
    }
    return format
}
export function getFormat(formatter) {
    var valueText = ".";
    var isPercent = formatter(1).indexOf("100") >= 0;
    valueText = prepareValueText(valueText, formatter, isPercent, true);
    valueText = prepareValueText(valueText, formatter, isPercent, false);
    var positiveFormat = getFormatByValueText(valueText, formatter, isPercent, false);
    var negativeFormat = getFormatByValueText(valueText, formatter, isPercent, true);
    return negativeFormat === "-" + positiveFormat ? positiveFormat : positiveFormat + ";" + negativeFormat
}