function localeMonthsParse()

in charts/shared/moment.js [1036:1087]

• 49 lines of code
• 18 McCabe index (conditional complexity)

function localeMonthsParse(monthName, format, strict) {
    var i, mom, regex;

    if (this._monthsParseExact) {
        return handleStrictParse.call(this, monthName, format, strict);
    }

    if (!this._monthsParse) {
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
    }

    // TODO: add sorting
    // Sorting makes sure if one month (or abbr) is a prefix of another
    // see sorting in computeMonthsParse
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        if (strict && !this._longMonthsParse[i]) {
            this._longMonthsParse[i] = new RegExp(
                '^' + this.months(mom, '').replace('.', '') + '$',
                'i'
            );
            this._shortMonthsParse[i] = new RegExp(
                '^' + this.monthsShort(mom, '').replace('.', '') + '$',
                'i'
            );
        }
        if (!strict && !this._monthsParse[i]) {
            regex =
                '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (
            strict &&
            format === 'MMMM' &&
            this._longMonthsParse[i].test(monthName)
        ) {
            return i;
        } else if (
            strict &&
            format === 'MMM' &&
            this._shortMonthsParse[i].test(monthName)
        ) {
            return i;
        } else if (!strict && this._monthsParse[i].test(monthName)) {
            return i;
        }
    }
}