ngx-bootstrap/chronos/esm2015/create/from-string.js

import { defaultLocaleMonthsShort, defaultLocaleWeekdaysShort } from '../locale/locale.class';
import { isString } from '../utils/type-checks';
import { configFromStringAndFormat } from './from-string-and-format';
import { createUTCDate } from './date-from-array';
import { createInvalid, markInvalid } from './valid';
import { getParsingFlags } from './parsing-flags';
// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
const extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
const basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
const tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;
const isoDates = [
    ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/, true],
    ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/, true],
    ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/, true],
    ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
    ['YYYY-DDD', /\d{4}-\d{3}/, true],
    ['YYYY-MM', /\d{4}-\d\d/, false],
    ['YYYYYYMMDD', /[+-]\d{10}/, true],
    ['YYYYMMDD', /\d{8}/, true],
    // YYYYMM is NOT allowed by the standard
    ['GGGG[W]WWE', /\d{4}W\d{3}/, true],
    ['GGGG[W]WW', /\d{4}W\d{2}/, false],
    ['YYYYDDD', /\d{7}/, true]
];
// iso time formats and regexes
const isoTimes = [
    ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
    ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
    ['HH:mm:ss', /\d\d:\d\d:\d\d/],
    ['HH:mm', /\d\d:\d\d/],
    ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
    ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
    ['HHmmss', /\d\d\d\d\d\d/],
    ['HHmm', /\d\d\d\d/],
    ['HH', /\d\d/]
];
const aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
const obsOffsets = {
    UT: 0,
    GMT: 0,
    EDT: -4 * 60,
    EST: -5 * 60,
    CDT: -5 * 60,
    CST: -6 * 60,
    MDT: -6 * 60,
    MST: -7 * 60,
    PDT: -7 * 60,
    PST: -8 * 60
};
// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
const rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;
// date from iso format
export function configFromISO(config) {
    if (!isString(config._i)) {
        return config;
    }
    const input = config._i;
    const match = extendedIsoRegex.exec(input) || basicIsoRegex.exec(input);
    let allowTime;
    let dateFormat;
    let timeFormat;
    let tzFormat;
    if (!match) {
        config._isValid = false;
        return config;
    }
    // getParsingFlags(config).iso = true;
    let i;
    let l;
    for (i = 0, l = isoDates.length; i < l; i++) {
        if (isoDates[i][1].exec(match[1])) {
            dateFormat = isoDates[i][0];
            allowTime = isoDates[i][2] !== false;
            break;
        }
    }
    if (dateFormat == null) {
        config._isValid = false;
        return config;
    }
    if (match[3]) {
        for (i = 0, l = isoTimes.length; i < l; i++) {
            if (isoTimes[i][1].exec(match[3])) {
                // match[2] should be 'T' or space
                timeFormat = (match[2] || ' ') + isoTimes[i][0];
                break;
            }
        }
        if (timeFormat == null) {
            config._isValid = false;
            return config;
        }
    }
    if (!allowTime && timeFormat != null) {
        config._isValid = false;
        return config;
    }
    if (match[4]) {
        if (tzRegex.exec(match[4])) {
            tzFormat = 'Z';
        }
        else {
            config._isValid = false;
            return config;
        }
    }
    config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
    return configFromStringAndFormat(config);
}
function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
    const result = [
        untruncateYear(yearStr),
        defaultLocaleMonthsShort.indexOf(monthStr),
        parseInt(dayStr, 10),
        parseInt(hourStr, 10),
        parseInt(minuteStr, 10)
    ];
    if (secondStr) {
        result.push(parseInt(secondStr, 10));
    }
    return result;
}
function untruncateYear(yearStr) {
    const year = parseInt(yearStr, 10);
    return year <= 49 ? year + 2000 : year;
}
function preprocessRFC2822(str) {
    // Remove comments and folding whitespace and replace multiple-spaces with a single space
    return str
        .replace(/\([^)]*\)|[\n\t]/g, ' ')
        .replace(/(\s\s+)/g, ' ').trim();
}
function checkWeekday(weekdayStr, parsedInput, config) {
    if (weekdayStr) {
        // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
        const weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr);
        const weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
        if (weekdayProvided !== weekdayActual) {
            getParsingFlags(config).weekdayMismatch = true;
            config._isValid = false;
            return false;
        }
    }
    return true;
}
function calculateOffset(obsOffset, militaryOffset, numOffset) {
    if (obsOffset) {
        return obsOffsets[obsOffset];
    }
    else if (militaryOffset) {
        // the only allowed military tz is Z
        return 0;
    }
    else {
        const hm = parseInt(numOffset, 10);
        const m = hm % 100;
        const h = (hm - m) / 100;
        return h * 60 + m;
    }
}
// date and time from ref 2822 format
export function configFromRFC2822(config) {
    if (!isString(config._i)) {
        return config;
    }
    const match = rfc2822.exec(preprocessRFC2822(config._i));
    if (!match) {
        return markInvalid(config);
    }
    const parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
    if (!checkWeekday(match[1], parsedArray, config)) {
        return config;
    }
    config._a = parsedArray;
    config._tzm = calculateOffset(match[8], match[9], match[10]);
    config._d = createUTCDate.apply(null, config._a);
    config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
    getParsingFlags(config).rfc2822 = true;
    return config;
}
// date from iso format or fallback
export function configFromString(config) {
    if (!isString(config._i)) {
        return config;
    }
    const matched = aspNetJsonRegex.exec(config._i);
    if (matched !== null) {
        config._d = new Date(+matched[1]);
        return config;
    }
    // todo: update logic processing
    // isISO -> configFromISO
    // isRFC -> configFromRFC
    configFromISO(config);
    if (config._isValid === false) {
        delete config._isValid;
    }
    else {
        return config;
    }
    configFromRFC2822(config);
    if (config._isValid === false) {
        delete config._isValid;
    }
    else {
        return config;
    }
    // Final attempt, use Input Fallback
    // hooks.createFromInputFallback(config);
    return createInvalid(config);
}
// hooks.createFromInputFallback = deprecate(
//     'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
//     'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
//     'discouraged and will be removed in an upcoming major release. Please refer to ' +
//     'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
//     function (config) {
//         config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
//     }
// );
//# sourceMappingURL=from-string.js.map