JewishCalendar::numberToNumerals() - Code Metrics - fisharebest/ext-calendar - Measure and Improve Code Quality continuously with Scrutinizer

JewishCalendar::numberToNumerals() A
last analyzed 2020-08-21 19:40 UTC

↳ Parent: JewishCalendar

Complexity

Conditions	4
Paths	4

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	4
nc	4
nop	2
dl	0
loc	16
rs	9.7333
c	0
b	0
f	0

<?php
namespace Fisharebest\ExtCalendar;

use InvalidArgumentException;

/**
 * Class JewishCalendar - calculations for the Jewish calendar.
 *
 * Hebrew characters in the code have either ISO-8859-8 or UTF_8 encoding.
 * Hebrew characters in the comments have UTF-8 encoding.
 *
 * @author    Greg Roach <[email protected]>
 * @copyright (c) 2014-2020 Greg Roach
 * @license   This program is free software: you can redistribute it and/or modify
 *            it under the terms of the GNU General Public License as published by
 *            the Free Software Foundation, either version 3 of the License, or
 *            (at your option) any later version.
 *
 *            This program is distributed in the hope that it will be useful,
 *            but WITHOUT ANY WARRANTY; without even the implied warranty of
 *            MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *            GNU General Public License for more details.
 *
 *            You should have received a copy of the GNU General Public License
 *            along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
class JewishCalendar implements CalendarInterface
{
    /** Optional behaviour for this calendar. */
    const EMULATE_BUG_54254 = 'EMULATE_BUG_54254';

    /** Place this symbol before the final letter of a sequence of numerals */
    const GERSHAYIM_ISO8859 = '"';
    const GERSHAYIM         = "\xd7\xb4";

    /** Place this symbol after a single numeral */
    const GERESH_ISO8859 = '\'';
    const GERESH         = "\xd7\xb3";

    /** The Hebrew word for thousand */
    const ALAFIM_ISO8859 = "\xe0\xec\xf4\xe9\xed";
    const ALAFIM         = "\xd7\x90\xd7\x9c\xd7\xa4\xd7\x99\xd7\x9d";

    /** A year that is one day shorter than normal. */
    const DEFECTIVE_YEAR = -1;

    /** A year that has the normal number of days. */
    const REGULAR_YEAR = 0;

    /** A year that is one day longer than normal. */
    const COMPLETE_YEAR = 1;

    /** @var string[] Hebrew numbers are represented by letters, similar to roman numerals. */
    private static $HEBREW_NUMERALS_ISO8859_8 = array(
        400 => "\xfa",
        300 => "\xf9",
        200 => "\xf8",
        100 => "\xf7",
        90  => "\xf6",
        80  => "\xf4",
        70  => "\xf2",
        60  => "\xf1",
        50  => "\xf0",
        40  => "\xee",
        30  => "\xec",
        20  => "\xeb",
        19  => "\xe9\xe8",
        18  => "\xe9\xe7",
        17  => "\xe9\xe6",
        16  => "\xe8\xe6",
        15  => "\xe8\xe5",
        10  => "\xe9",
        9   => "\xe8",
        8   => "\xe7",
        7   => "\xe6",
        6   => "\xe5",
        5   => "\xe4",
        4   => "\xe3",
        3   => "\xe2",
        2   => "\xe1",
        1   => "\xe0",
    );

    /** @var string[] Hebrew numbers are represented by letters, similar to roman numerals. */
    private static $HEBREW_NUMERALS_UTF8 = array(
        400 => "\xd7\xaa",
        300 => "\xd7\xa9",
        200 => "\xd7\xa8",
        100 => "\xd7\xa7",
        90  => "\xd7\xa6",
        80  => "\xd7\xa4",
        70  => "\xd7\xa2",
        60  => "\xd7\xa1",
        50  => "\xd7\xa0",
        40  => "\xd7\x9e",
        30  => "\xd7\x9c",
        20  => "\xd7\x9b",
        19  => "\xd7\x99\xd7\x98",
        18  => "\xd7\x99\xd7\x97",
        17  => "\xd7\x99\xd7\x96",
        16  => "\xd7\x98\xd7\x96",
        15  => "\xd7\x98\xd7\x95",
        10  => "\xd7\x99",
        9   => "\xd7\x98",
        8   => "\xd7\x97",
        7   => "\xd7\x96",
        6   => "\xd7\x95",
        5   => "\xd7\x94",
        4   => "\xd7\x93",
        3   => "\xd7\x92",
        2   => "\xd7\x91",
        1   => "\xd7\x90",
    );

    /** @var string[] Some letters have a different final form  */
    private static $FINAL_FORMS_UTF8 = array(
        "\xd7\x9b" => "\xd7\x9a",
        "\xd7\x9e" => "\xd7\x9d",
        "\xd7\xa0" => "\xd7\x9f",
        "\xd7\xa4" => "\xd7\xa3",
        "\xd7\xa6" => "\xd7\xa5",
    );

    /** @var int[] These months have fixed lengths.  Others are variable. */
    private static $FIXED_MONTH_LENGTHS = array(
        1 => 30, 4 => 29, 5 => 30, 7 => 29, 8 => 30, 9 => 29, 10 => 30, 11 => 29, 12 => 30, 13 => 29
    );

    /**
     * Cumulative number of days for each month in each type of year.
     * First index is false/true (non-leap year, leap year)
     * Second index is year type (-1, 0, 1)
     * Third index is month number (1 ... 13)
     *
     * @var int[][][]
     */
    private static $CUMULATIVE_DAYS = array(
        0 => array( // Non-leap years
            self::DEFECTIVE_YEAR => array(
                1 => 0, 30, 59, 88, 117, 147, 147, 176, 206, 235, 265, 294, 324
            ),
            self::REGULAR_YEAR  => array( // Regular years
                1 => 0, 30, 59, 89, 118, 148, 148, 177, 207, 236, 266, 295, 325
            ),
            self::COMPLETE_YEAR  => array( // Complete years
                1 => 0, 30, 60, 90, 119, 149, 149, 178, 208, 237, 267, 296, 326
            ),
        ),
        1 => array( // Leap years
            self::DEFECTIVE_YEAR => array( // Deficient years
                1 => 0, 30, 59, 88, 117, 147, 177, 206, 236, 265, 295, 324, 354
            ),
            self::REGULAR_YEAR  => array( // Regular years
                1 => 0, 30, 59, 89, 118, 148, 178, 207, 237, 266, 296, 325, 355
            ),
            self::COMPLETE_YEAR  => array( // Complete years
                1 => 0, 30, 60, 90, 119, 149, 179, 208, 238, 267, 297, 326, 356
            ),
        ),
    );

    /** @var int[] Rosh Hashanah cannot fall on a Sunday, Wednesday or Friday.  Move the year start accordingly. */
    private static $ROSH_HASHANAH = array(347998, 347997, 347997, 347998, 347997, 347998, 347997);

    /** @var mixed[] special behaviour for this calendar */
    protected $options = array(
        self::EMULATE_BUG_54254 => false,
    );

    /**
     * @param mixed[] $options Some calendars have options that change their behaviour.
     */
    public function __construct($options = array())
    {
        $this->options = array_merge($this->options, $options);
    }

    /**
     * Determine the number of days in a specified month, allowing for leap years, etc.
     *
     * @param int $year
     * @param int $month
     *
     * @return int
     */
    public function daysInMonth($year, $month)
    {
        if ($year < 1) {
            throw new InvalidArgumentException('Year ' . $year . ' is invalid for this calendar');
        } elseif ($month < 1 || $month > 13) {

            throw new InvalidArgumentException('Month ' . $month . ' is invalid for this calendar');
        } elseif ($month == 2) {
            return $this->daysInMonthHeshvan($year);
        } elseif ($month == 3) {
            return $this->daysInMonthKislev($year);
        } elseif ($month == 6) {
            return $this->daysInMonthAdarI($year);
        } else {
            return self::$FIXED_MONTH_LENGTHS[$month];
        }
    }

    /**
     * Determine the number of days in a week.
     *
     * @return int
     */
    public function daysInWeek()
    {
        return 7;
    }

    /**
     * The escape sequence used to indicate this calendar in GEDCOM files.
     *
     * @return string
     */
    public function gedcomCalendarEscape()
    {
        return '@#DHEBREW@';
    }

    /**
     * Determine whether or not a given year is a leap-year.
     *
     * @param int $year
     *
     * @return bool
     */
    public function isLeapYear($year)
    {
        return (7 * $year + 1) % 19 < 7;
    }

    /**
     * What is the highest Julian day number that can be converted into this calendar.
     *
     * @return int
     */
    public function jdEnd()
    {
        return PHP_INT_MAX;
    }

    /**
     * What is the lowest Julian day number that can be converted into this calendar.
     *
     * @return int
     */
    public function jdStart()
    {
        return 347998; // 1 Tishri 0001 AM
    }

    /**
     * Convert a Julian day number into a year.
     *
     * @param int $julian_day
     *
     * @return int
     */
    protected function jdToY($julian_day)
    {
        // Estimate the year, and underestimate it, it will be refined after
        $year = max((int) ((($julian_day - 347998) * 98496) / 35975351) - 1, 1);

        // Adjust by adding years;
        while ($julian_day >= $this->yToJd($year + 1)) {
            $year++;
        }

        return $year;
    }

    /**
     * Convert a Julian day number into a year/month/day.
     *
     * @param int $julian_day
     *
     * @return int[]
     */
    public function jdToYmd($julian_day)
    {
        // Find the year, by adding one month at a time to use up the remaining days.
        $year  = $this->jdToY($julian_day);
        $month = 1;
        $day   = $julian_day - $this->yToJd($year) + 1;

        while ($day > $this->daysInMonth($year, $month)) {
            $day -= $this->daysInMonth($year, $month);
            $month++;
        }

        // PHP 5.4 and earlier converted non leap-year Adar into month 6, instead of month 7.
        $month -= ($month === 7 && $this->options[self::EMULATE_BUG_54254] && !$this->isLeapYear($year)) ? 1 : 0;

        return array($year, $month, $day);
    }

    /**
     * Determine the number of months in a year (if given),
     * or the maximum number of months in any year.
     *
     * @param int|null $year
     *
     * @return int
     */
    public function monthsInYear($year = null)
    {
        if ($year !== null && !$this->isLeapYear($year)) {
            return 12;
        }

        return 13;
    }

    /**
     * Calculate the Julian Day number of the first day in a year.
     *
     * @param int $year
     *
     * @return int
     */
    protected function yToJd($year)
    {
        $div19 = (int) (($year - 1) / 19);
        $mod19 = ($year - 1) % 19;

        $months      = 235 * $div19 + 12 * $mod19 + (int) ((7 * $mod19 + 1) / 19);
        $parts       = 204 + 793 * ($months % 1080);
        $hours       = 5 + 12 * $months + 793 * (int) ($months / 1080) + (int) ($parts / 1080);
        $conjunction = 1080 * ($hours % 24) + ($parts % 1080);
        $julian_day  = 1 + 29 * $months + (int) ($hours / 24);

        if ($conjunction >= 19440 ||
            $julian_day % 7 === 2 && $conjunction >= 9924 && !$this->isLeapYear($year) ||
            $julian_day % 7 === 1 && $conjunction >= 16789 && $this->isLeapYear($year - 1)
        ) {
            $julian_day++;
        }

        // The actual year start depends on the day of the week
        return $julian_day + self::$ROSH_HASHANAH[$julian_day % 7];
    }

    /**
     * Convert a year/month/day to a Julian day number.
     *
     * @param int $year
     * @param int $month
     * @param int $day
     *
     * @return int
     */
    public function ymdToJd($year, $month, $day)
    {
        return
            $this->yToJd($year) +
            self::$CUMULATIVE_DAYS[$this->isLeapYear($year)][$this->yearType($year)][$month] +
            $day - 1;
    }

    /**
     * Determine whether a year is normal, defective or complete.
     *
     * @param int $year
     *
     * @return int defective (-1), normal (0) or complete (1)
     */
    private function yearType($year)
    {
        $year_length = $this->yToJd($year + 1) - $this->yToJd($year);

        if ($year_length === 353 || $year_length === 383) {
            return self::DEFECTIVE_YEAR;
        } elseif ($year_length === 355 || $year_length === 385) {
            return self::COMPLETE_YEAR;
        } else {
            return self::REGULAR_YEAR;
        }
    }

    /**
     * Calculate the number of days in Heshvan.
     *
     * @param int $year
     *
     * @return int
     */
    private function daysInMonthHeshvan($year)
    {
        if ($this->yearType($year) === self::COMPLETE_YEAR) {
            return 30;
        } else {
            return 29;
        }
    }

    /**
     * Calculate the number of days in Kislev.
     *
     * @param int $year
     *
     * @return int
     */
    private function daysInMonthKislev($year)
    {
        if ($this->yearType($year) === self::DEFECTIVE_YEAR) {
            return 29;
        } else {
            return 30;
        }
    }

    /**
     * Calculate the number of days in Adar I.
     *
     * @param int $year
     *
     * @return int
     */
    private function daysInMonthAdarI($year)
    {
        if ($this->isLeapYear($year)) {
            return 30;
        } else {
            return 0;
        }
    }

    /**
     * Hebrew month names.
     *
     * @link https://bugs.php.net/bug.php?id=54254
     *
     * @param int $year
     *
     * @return string[]
     */
    protected function hebrewMonthNames($year)
    {
        $leap_year = $this->isLeapYear($year);

        return array(
            1 => "\xfa\xf9\xf8\xe9", // Tishri - תשרי
            "\xe7\xf9\xe5\xef", // Heshvan - חשון
            "\xeb\xf1\xec\xe5", // Kislev - כסלו
            "\xe8\xe1\xfa", // Tevet - טבת
            "\xf9\xe1\xe8", // Shevat - שבט
            $leap_year ? ($this->options[self::EMULATE_BUG_54254] ? "\xe0\xe3\xf8" : "\xe0\xe3\xf8 \xe0'") : "\xe0\xe3\xf8", // Adar I - אדר - אדר א׳ - אדר
            $leap_year ? ($this->options[self::EMULATE_BUG_54254] ? "'\xe0\xe3\xf8 \xe1" : "\xe0\xe3\xf8 \xe1'") : "\xe0\xe3\xf8", // Adar II - 'אדר ב - אדר ב׳ - אדר
            "\xf0\xe9\xf1\xef", // Nisan - ניסן
            "\xe0\xe9\xe9\xf8", // Iyar - אייר
            "\xf1\xe9\xe5\xef", // Sivan - סיון
            "\xfa\xee\xe5\xe6", // Tammuz - תמוז
            "\xe0\xe1", // Av - אב
            "\xe0\xec\xe5\xec", // Elul - אלול
        );
    }

    /**
     * The Hebrew name of a given month.
     *
     * @param int $year
     * @param int $month
     *
     * @return string
     */
    protected function hebrewMonthName($year, $month)
    {
        $months = $this->hebrewMonthNames($year);

        return $months[$month];
    }

    /**
     * Add geresh (׳) and gershayim (״) punctuation to numeric values.
     *
     * Gereshayim is a contraction of “geresh” and “gershayim”.
     *
     * @param string $hebrew
     *
     * @return string
     */
    protected function addGereshayim($hebrew)
    {
        switch (strlen($hebrew)) {
            case 0:
                // Zero, e.g. the zeros from the year 5,000
                return $hebrew;
            case 1:
                // Single digit - append a geresh
                return $hebrew . self::GERESH_ISO8859;
            default:
                // Multiple digits - insert a gershayim
                return substr_replace($hebrew, self::GERSHAYIM_ISO8859, -1, 0);
        }
    }

    /**
     * Convert a number into a string, in the style of roman numerals
     *
     * @param int      $number
     * @param string[] $numerals
     *
     * @return string
     */
    private function numberToNumerals($number, array $numerals)
    {
        $string = '';

        while ($number > 0) {
            foreach ($numerals as $n => $t) {
                if ($number >= $n) {
                    $string .= $t;
                    $number -= $n;
                    break;
                }
            }
        }

        return $string;
    }

    /**
     * Convert a number into Hebrew numerals using UTF8.
     *
     * @param int  $number
     * @param bool $show_thousands
     *
     * @return string
     */
    public function numberToHebrewNumerals($number, $show_thousands)
    {
        // Years (e.g. "5782") may be written without the thousands (e.g. just "782"),
        // but since there is no zero, the number 5000 must be written as "5 thousand"
        if ($show_thousands || $number % 1000 === 0) {
            $thousands = (int)($number / 1000);
        } else {
            $thousands = 0;
        }
        $number = $number % 1000;

        $hebrew = $this->numberToNumerals($number, self::$HEBREW_NUMERALS_UTF8);

        // Two bytes per UTF8 character
        if (strlen($hebrew) === 2) {
            // Append a geresh after single-digit
            $hebrew .= self::GERESH;
        } elseif (strlen($hebrew) > 2) {
            // Some letters have a "final" form, when used at the end of a word.
            $hebrew = substr($hebrew, 0, -2) . strtr(substr($hebrew, -2), self::$FINAL_FORMS_UTF8);
            // Insert a gershayim before the final letter
            $hebrew = substr_replace($hebrew, self::GERSHAYIM, -2, 0);
        }

        if ($thousands) {
            if ($hebrew) {
                $hebrew = $this->numberToHebrewNumerals($thousands, $show_thousands) . $hebrew;
            } else {
                $hebrew = $this->numberToHebrewNumerals($thousands, $show_thousands) . ' ' . self::ALAFIM;
            }
        }

        return $hebrew;
    }

    /**
     * Convert a number into Hebrew numerals using ISO8859-8.
     *
     * @param int  $number
     * @param bool $gereshayim Add punctuation to numeric values
     *
     * @return string
     */
    protected function numberToHebrewNumeralsIso8859($number, $gereshayim)
    {
        $hebrew = $this->numberToNumerals($number, self::$HEBREW_NUMERALS_ISO8859_8);

        // Hebrew numerals are letters.  Add punctuation to prevent confusion with actual words.
        if ($gereshayim) {
            return $this->addGereshayim($hebrew);
        } else {
            return $hebrew;
        }
    }

    /**
     * Format a year using Hebrew numerals.
     *
     * @param int  $year
     * @param bool $alafim_geresh Add a geresh  (׳) after thousands
     * @param bool $alafim        Add the word for thousands after the thousands
     * @param bool $gereshayim    Add geresh (׳) and gershayim (״) punctuation to numeric values
     *
     * @return string
     */
    protected function yearToHebrewNumerals($year, $alafim_geresh, $alafim, $gereshayim)
    {
        if ($year < 1000) {
            return $this->numberToHebrewNumeralsIso8859($year, $gereshayim);
        } else {
            $thousands = $this->numberToHebrewNumeralsIso8859((int) ($year / 1000), false);
            if ($alafim_geresh) {
                $thousands .= self::GERESH_ISO8859;
            }
            if ($alafim) {
                $thousands .= ' ' . self::ALAFIM_ISO8859 . ' ';
            }

            return $thousands . $this->numberToHebrewNumeralsIso8859($year % 1000, $gereshayim);
        }
    }

    /**
     * Convert a Julian Day number into a Hebrew date.
     *
     * @param int  $julian_day
     * @param bool $alafim_garesh
     * @param bool $alafim
     * @param bool $gereshayim
     *
     * @return string
     */
    public function jdToHebrew($julian_day, $alafim_garesh, $alafim, $gereshayim)
    {
        list($year, $month, $day) = $this->jdToYmd($julian_day);

        return
            $this->numberToHebrewNumeralsIso8859($day, $gereshayim) . ' ' .
            $this->hebrewMonthName($year, $month) . ' ' .
            $this->yearToHebrewNumerals($year, $alafim_garesh, $alafim, $gereshayim);
    }
}


1		<?php
2		namespace Fisharebest\ExtCalendar;
3
4		use InvalidArgumentException;
5
6		/**
7		* Class JewishCalendar - calculations for the Jewish calendar.
8		*
9		* Hebrew characters in the code have either ISO-8859-8 or UTF_8 encoding.
10		* Hebrew characters in the comments have UTF-8 encoding.
11		*
12		* @author Greg Roach <[email protected]>
13		* @copyright (c) 2014-2020 Greg Roach
14		* @license This program is free software: you can redistribute it and/or modify
15		* it under the terms of the GNU General Public License as published by
16		* the Free Software Foundation, either version 3 of the License, or
17		* (at your option) any later version.
18		*
19		* This program is distributed in the hope that it will be useful,
20		* but WITHOUT ANY WARRANTY; without even the implied warranty of
21		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22		* GNU General Public License for more details.
23		*
24		* You should have received a copy of the GNU General Public License
25		* along with this program. If not, see <http://www.gnu.org/licenses/>.
26		*/
27		class JewishCalendar implements CalendarInterface
28		{
29		/** Optional behaviour for this calendar. */
30		const EMULATE_BUG_54254 = 'EMULATE_BUG_54254';
31
32		/** Place this symbol before the final letter of a sequence of numerals */
33		const GERSHAYIM_ISO8859 = '"';
34		const GERSHAYIM = "\xd7\xb4";
35
36		/** Place this symbol after a single numeral */
37		const GERESH_ISO8859 = '\'';
38		const GERESH = "\xd7\xb3";
39
40		/** The Hebrew word for thousand */
41		const ALAFIM_ISO8859 = "\xe0\xec\xf4\xe9\xed";
42		const ALAFIM = "\xd7\x90\xd7\x9c\xd7\xa4\xd7\x99\xd7\x9d";
43
44		/** A year that is one day shorter than normal. */
45		const DEFECTIVE_YEAR = -1;
46
47		/** A year that has the normal number of days. */
48		const REGULAR_YEAR = 0;
49
50		/** A year that is one day longer than normal. */
51		const COMPLETE_YEAR = 1;
52
53		/** @var string[] Hebrew numbers are represented by letters, similar to roman numerals. */
54		private static $HEBREW_NUMERALS_ISO8859_8 = array(
55		400 => "\xfa",
56		300 => "\xf9",
57		200 => "\xf8",
58		100 => "\xf7",
59		90 => "\xf6",
60		80 => "\xf4",
61		70 => "\xf2",
62		60 => "\xf1",
63		50 => "\xf0",
64		40 => "\xee",
65		30 => "\xec",
66		20 => "\xeb",
67		19 => "\xe9\xe8",
68		18 => "\xe9\xe7",
69		17 => "\xe9\xe6",
70		16 => "\xe8\xe6",
71		15 => "\xe8\xe5",
72		10 => "\xe9",
73		9 => "\xe8",
74		8 => "\xe7",
75		7 => "\xe6",
76		6 => "\xe5",
77		5 => "\xe4",
78		4 => "\xe3",
79		3 => "\xe2",
80		2 => "\xe1",
81		1 => "\xe0",
82		);
83
84		/** @var string[] Hebrew numbers are represented by letters, similar to roman numerals. */
85		private static $HEBREW_NUMERALS_UTF8 = array(
86		400 => "\xd7\xaa",
87		300 => "\xd7\xa9",
88		200 => "\xd7\xa8",
89		100 => "\xd7\xa7",
90		90 => "\xd7\xa6",
91		80 => "\xd7\xa4",
92		70 => "\xd7\xa2",
93		60 => "\xd7\xa1",
94		50 => "\xd7\xa0",
95		40 => "\xd7\x9e",
96		30 => "\xd7\x9c",
97		20 => "\xd7\x9b",
98		19 => "\xd7\x99\xd7\x98",
99		18 => "\xd7\x99\xd7\x97",
100		17 => "\xd7\x99\xd7\x96",
101		16 => "\xd7\x98\xd7\x96",
102		15 => "\xd7\x98\xd7\x95",
103		10 => "\xd7\x99",
104		9 => "\xd7\x98",
105		8 => "\xd7\x97",
106		7 => "\xd7\x96",
107		6 => "\xd7\x95",
108		5 => "\xd7\x94",
109		4 => "\xd7\x93",
110		3 => "\xd7\x92",
111		2 => "\xd7\x91",
112		1 => "\xd7\x90",
113		);
114
115		/** @var string[] Some letters have a different final form */
116		private static $FINAL_FORMS_UTF8 = array(
117		"\xd7\x9b" => "\xd7\x9a",
118		"\xd7\x9e" => "\xd7\x9d",
119		"\xd7\xa0" => "\xd7\x9f",
120		"\xd7\xa4" => "\xd7\xa3",
121		"\xd7\xa6" => "\xd7\xa5",
122		);
123
124		/** @var int[] These months have fixed lengths. Others are variable. */
125		private static $FIXED_MONTH_LENGTHS = array(
126		1 => 30, 4 => 29, 5 => 30, 7 => 29, 8 => 30, 9 => 29, 10 => 30, 11 => 29, 12 => 30, 13 => 29
127		);
128
129		/**
130		* Cumulative number of days for each month in each type of year.
131		* First index is false/true (non-leap year, leap year)
132		* Second index is year type (-1, 0, 1)
133		* Third index is month number (1 ... 13)
134		*
135		* @var int[][][]
136		*/
137		private static $CUMULATIVE_DAYS = array(
138		0 => array( // Non-leap years
139		self::DEFECTIVE_YEAR => array(
140		1 => 0, 30, 59, 88, 117, 147, 147, 176, 206, 235, 265, 294, 324
141		),
142		self::REGULAR_YEAR => array( // Regular years
143		1 => 0, 30, 59, 89, 118, 148, 148, 177, 207, 236, 266, 295, 325
144		),
145		self::COMPLETE_YEAR => array( // Complete years
146		1 => 0, 30, 60, 90, 119, 149, 149, 178, 208, 237, 267, 296, 326
147		),
148		),
149		1 => array( // Leap years
150		self::DEFECTIVE_YEAR => array( // Deficient years
151		1 => 0, 30, 59, 88, 117, 147, 177, 206, 236, 265, 295, 324, 354
152		),
153		self::REGULAR_YEAR => array( // Regular years
154		1 => 0, 30, 59, 89, 118, 148, 178, 207, 237, 266, 296, 325, 355
155		),
156		self::COMPLETE_YEAR => array( // Complete years
157		1 => 0, 30, 60, 90, 119, 149, 179, 208, 238, 267, 297, 326, 356
158		),
159		),
160		);
161
162		/** @var int[] Rosh Hashanah cannot fall on a Sunday, Wednesday or Friday. Move the year start accordingly. */
163		private static $ROSH_HASHANAH = array(347998, 347997, 347997, 347998, 347997, 347998, 347997);
164
165		/** @var mixed[] special behaviour for this calendar */
166		protected $options = array(
167		self::EMULATE_BUG_54254 => false,
168		);
169
170		/**
171		* @param mixed[] $options Some calendars have options that change their behaviour.
172		*/
173		public function __construct($options = array())
174		{
175		$this->options = array_merge($this->options, $options);
176		}
177
178		/**
179		* Determine the number of days in a specified month, allowing for leap years, etc.
180		*
181		* @param int $year
182		* @param int $month
183		*
184		* @return int
185		*/
186		public function daysInMonth($year, $month)
187		{
188		if ($year < 1) {
189		throw new InvalidArgumentException('Year ' . $year . ' is invalid for this calendar');
190	View Code Duplication	} elseif ($month < 1 \|\| $month > 13) {
		0 ignored issues – show Duplication introduced 2015-11-30 10:21 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
191		throw new InvalidArgumentException('Month ' . $month . ' is invalid for this calendar');
192		} elseif ($month == 2) {
193		return $this->daysInMonthHeshvan($year);
194		} elseif ($month == 3) {
195		return $this->daysInMonthKislev($year);
196		} elseif ($month == 6) {
197		return $this->daysInMonthAdarI($year);
198		} else {
199		return self::$FIXED_MONTH_LENGTHS[$month];
200		}
201		}
202
203		/**
204		* Determine the number of days in a week.
205		*
206		* @return int
207		*/
208		public function daysInWeek()
209		{
210		return 7;
211		}
212
213		/**
214		* The escape sequence used to indicate this calendar in GEDCOM files.
215		*
216		* @return string
217		*/
218		public function gedcomCalendarEscape()
219		{
220		return '@#DHEBREW@';
221		}
222
223		/**
224		* Determine whether or not a given year is a leap-year.
225		*
226		* @param int $year
227		*
228		* @return bool
229		*/
230		public function isLeapYear($year)
231		{
232		return (7 * $year + 1) % 19 < 7;
233		}
234
235		/**
236		* What is the highest Julian day number that can be converted into this calendar.
237		*
238		* @return int
239		*/
240		public function jdEnd()
241		{
242		return PHP_INT_MAX;
243		}
244
245		/**
246		* What is the lowest Julian day number that can be converted into this calendar.
247		*
248		* @return int
249		*/
250		public function jdStart()
251		{
252		return 347998; // 1 Tishri 0001 AM
253		}
254
255		/**
256		* Convert a Julian day number into a year.
257		*
258		* @param int $julian_day
259		*
260		* @return int
261		*/
262		protected function jdToY($julian_day)
263		{
264		// Estimate the year, and underestimate it, it will be refined after
265		$year = max((int) ((($julian_day - 347998) * 98496) / 35975351) - 1, 1);
266
267		// Adjust by adding years;
268		while ($julian_day >= $this->yToJd($year + 1)) {
269		$year++;
270		}
271
272		return $year;
273		}
274
275		/**
276		* Convert a Julian day number into a year/month/day.
277		*
278		* @param int $julian_day
279		*
280		* @return int[]
281		*/
282		public function jdToYmd($julian_day)
283		{
284		// Find the year, by adding one month at a time to use up the remaining days.
285		$year = $this->jdToY($julian_day);
286		$month = 1;
287		$day = $julian_day - $this->yToJd($year) + 1;
288
289		while ($day > $this->daysInMonth($year, $month)) {
290		$day -= $this->daysInMonth($year, $month);
291		$month++;
292		}
293
294		// PHP 5.4 and earlier converted non leap-year Adar into month 6, instead of month 7.
295		$month -= ($month === 7 && $this->options[self::EMULATE_BUG_54254] && !$this->isLeapYear($year)) ? 1 : 0;
296
297		return array($year, $month, $day);
298		}
299
300		/**
301		* Determine the number of months in a year (if given),
302		* or the maximum number of months in any year.
303		*
304		* @param int\|null $year
305		*
306		* @return int
307		*/
308		public function monthsInYear($year = null)
309		{
310		if ($year !== null && !$this->isLeapYear($year)) {
311		return 12;
312		}
313
314		return 13;
315		}
316
317		/**
318		* Calculate the Julian Day number of the first day in a year.
319		*
320		* @param int $year
321		*
322		* @return int
323		*/
324		protected function yToJd($year)
325		{
326		$div19 = (int) (($year - 1) / 19);
327		$mod19 = ($year - 1) % 19;
328
329		$months = 235 * $div19 + 12 * $mod19 + (int) ((7 * $mod19 + 1) / 19);
330		$parts = 204 + 793 * ($months % 1080);
331		$hours = 5 + 12 * $months + 793 * (int) ($months / 1080) + (int) ($parts / 1080);
332		$conjunction = 1080 * ($hours % 24) + ($parts % 1080);
333		$julian_day = 1 + 29 * $months + (int) ($hours / 24);
334
335		if ($conjunction >= 19440 \|\|
336		$julian_day % 7 === 2 && $conjunction >= 9924 && !$this->isLeapYear($year) \|\|
337		$julian_day % 7 === 1 && $conjunction >= 16789 && $this->isLeapYear($year - 1)
338		) {
339		$julian_day++;
340		}
341
342		// The actual year start depends on the day of the week
343		return $julian_day + self::$ROSH_HASHANAH[$julian_day % 7];
344		}
345
346		/**
347		* Convert a year/month/day to a Julian day number.
348		*
349		* @param int $year
350		* @param int $month
351		* @param int $day
352		*
353		* @return int
354		*/
355		public function ymdToJd($year, $month, $day)
356		{
357		return
358		$this->yToJd($year) +
359		self::$CUMULATIVE_DAYS[$this->isLeapYear($year)][$this->yearType($year)][$month] +
360		$day - 1;
361		}
362
363		/**
364		* Determine whether a year is normal, defective or complete.
365		*
366		* @param int $year
367		*
368		* @return int defective (-1), normal (0) or complete (1)
369		*/
370		private function yearType($year)
371		{
372		$year_length = $this->yToJd($year + 1) - $this->yToJd($year);
373
374		if ($year_length === 353 \|\| $year_length === 383) {
375		return self::DEFECTIVE_YEAR;
376		} elseif ($year_length === 355 \|\| $year_length === 385) {
377		return self::COMPLETE_YEAR;
378		} else {
379		return self::REGULAR_YEAR;
380		}
381		}
382
383		/**
384		* Calculate the number of days in Heshvan.
385		*
386		* @param int $year
387		*
388		* @return int
389		*/
390		private function daysInMonthHeshvan($year)
391		{
392		if ($this->yearType($year) === self::COMPLETE_YEAR) {
393		return 30;
394		} else {
395		return 29;
396		}
397		}
398
399		/**
400		* Calculate the number of days in Kislev.
401		*
402		* @param int $year
403		*
404		* @return int
405		*/
406		private function daysInMonthKislev($year)
407		{
408		if ($this->yearType($year) === self::DEFECTIVE_YEAR) {
409		return 29;
410		} else {
411		return 30;
412		}
413		}
414
415		/**
416		* Calculate the number of days in Adar I.
417		*
418		* @param int $year
419		*
420		* @return int
421		*/
422		private function daysInMonthAdarI($year)
423		{
424		if ($this->isLeapYear($year)) {
425		return 30;
426		} else {
427		return 0;
428		}
429		}
430
431		/**
432		* Hebrew month names.
433		*
434		* @link https://bugs.php.net/bug.php?id=54254
435		*
436		* @param int $year
437		*
438		* @return string[]
439		*/
440		protected function hebrewMonthNames($year)
441		{
442		$leap_year = $this->isLeapYear($year);
443
444		return array(
445		1 => "\xfa\xf9\xf8\xe9", // Tishri - תשרי
446		"\xe7\xf9\xe5\xef", // Heshvan - חשון
447		"\xeb\xf1\xec\xe5", // Kislev - כסלו
448		"\xe8\xe1\xfa", // Tevet - טבת
449		"\xf9\xe1\xe8", // Shevat - שבט
450		$leap_year ? ($this->options[self::EMULATE_BUG_54254] ? "\xe0\xe3\xf8" : "\xe0\xe3\xf8 \xe0'") : "\xe0\xe3\xf8", // Adar I - אדר - אדר א׳ - אדר
451		$leap_year ? ($this->options[self::EMULATE_BUG_54254] ? "'\xe0\xe3\xf8 \xe1" : "\xe0\xe3\xf8 \xe1'") : "\xe0\xe3\xf8", // Adar II - 'אדר ב - אדר ב׳ - אדר
452		"\xf0\xe9\xf1\xef", // Nisan - ניסן
453		"\xe0\xe9\xe9\xf8", // Iyar - אייר
454		"\xf1\xe9\xe5\xef", // Sivan - סיון
455		"\xfa\xee\xe5\xe6", // Tammuz - תמוז
456		"\xe0\xe1", // Av - אב
457		"\xe0\xec\xe5\xec", // Elul - אלול
458		);
459		}
460
461		/**
462		* The Hebrew name of a given month.
463		*
464		* @param int $year
465		* @param int $month
466		*
467		* @return string
468		*/
469		protected function hebrewMonthName($year, $month)
470		{
471		$months = $this->hebrewMonthNames($year);
472
473		return $months[$month];
474		}
475
476		/**
477		* Add geresh (׳) and gershayim (״) punctuation to numeric values.
478		*
479		* Gereshayim is a contraction of “geresh” and “gershayim”.
480		*
481		* @param string $hebrew
482		*
483		* @return string
484		*/
485		protected function addGereshayim($hebrew)
486		{
487		switch (strlen($hebrew)) {
488		case 0:
489		// Zero, e.g. the zeros from the year 5,000
490		return $hebrew;
491		case 1:
492		// Single digit - append a geresh
493		return $hebrew . self::GERESH_ISO8859;
494		default:
495		// Multiple digits - insert a gershayim
496		return substr_replace($hebrew, self::GERSHAYIM_ISO8859, -1, 0);
497		}
498		}
499
500		/**
501		* Convert a number into a string, in the style of roman numerals
502		*
503		* @param int $number
504		* @param string[] $numerals
505		*
506		* @return string
507		*/
508		private function numberToNumerals($number, array $numerals)
509		{
510		$string = '';
511
512		while ($number > 0) {
513		foreach ($numerals as $n => $t) {
514		if ($number >= $n) {
515		$string .= $t;
516		$number -= $n;
517		break;
518		}
519		}
520		}
521
522		return $string;
523		}
524
525		/**
526		* Convert a number into Hebrew numerals using UTF8.
527		*
528		* @param int $number
529		* @param bool $show_thousands
530		*
531		* @return string
532		*/
533		public function numberToHebrewNumerals($number, $show_thousands)
534		{
535		// Years (e.g. "5782") may be written without the thousands (e.g. just "782"),
536		// but since there is no zero, the number 5000 must be written as "5 thousand"
537		if ($show_thousands \|\| $number % 1000 === 0) {
538		$thousands = (int)($number / 1000);
539		} else {
540		$thousands = 0;
541		}
542		$number = $number % 1000;
543
544		$hebrew = $this->numberToNumerals($number, self::$HEBREW_NUMERALS_UTF8);
545
546		// Two bytes per UTF8 character
547		if (strlen($hebrew) === 2) {
548		// Append a geresh after single-digit
549		$hebrew .= self::GERESH;
550		} elseif (strlen($hebrew) > 2) {
551		// Some letters have a "final" form, when used at the end of a word.
552		$hebrew = substr($hebrew, 0, -2) . strtr(substr($hebrew, -2), self::$FINAL_FORMS_UTF8);
553		// Insert a gershayim before the final letter
554		$hebrew = substr_replace($hebrew, self::GERSHAYIM, -2, 0);
555		}
556
557		if ($thousands) {
558		if ($hebrew) {
559		$hebrew = $this->numberToHebrewNumerals($thousands, $show_thousands) . $hebrew;
560		} else {
561		$hebrew = $this->numberToHebrewNumerals($thousands, $show_thousands) . ' ' . self::ALAFIM;
562		}
563		}
564
565		return $hebrew;
566		}
567
568		/**
569		* Convert a number into Hebrew numerals using ISO8859-8.
570		*
571		* @param int $number
572		* @param bool $gereshayim Add punctuation to numeric values
573		*
574		* @return string
575		*/
576		protected function numberToHebrewNumeralsIso8859($number, $gereshayim)
577		{
578		$hebrew = $this->numberToNumerals($number, self::$HEBREW_NUMERALS_ISO8859_8);
579
580		// Hebrew numerals are letters. Add punctuation to prevent confusion with actual words.
581		if ($gereshayim) {
582		return $this->addGereshayim($hebrew);
583		} else {
584		return $hebrew;
585		}
586		}
587
588		/**
589		* Format a year using Hebrew numerals.
590		*
591		* @param int $year
592		* @param bool $alafim_geresh Add a geresh (׳) after thousands
593		* @param bool $alafim Add the word for thousands after the thousands
594		* @param bool $gereshayim Add geresh (׳) and gershayim (״) punctuation to numeric values
595		*
596		* @return string
597		*/
598		protected function yearToHebrewNumerals($year, $alafim_geresh, $alafim, $gereshayim)
599		{
600		if ($year < 1000) {
601		return $this->numberToHebrewNumeralsIso8859($year, $gereshayim);
602		} else {
603		$thousands = $this->numberToHebrewNumeralsIso8859((int) ($year / 1000), false);
604		if ($alafim_geresh) {
605		$thousands .= self::GERESH_ISO8859;
606		}
607		if ($alafim) {
608		$thousands .= ' ' . self::ALAFIM_ISO8859 . ' ';
609		}
610
611		return $thousands . $this->numberToHebrewNumeralsIso8859($year % 1000, $gereshayim);
612		}
613		}
614
615		/**
616		* Convert a Julian Day number into a Hebrew date.
617		*
618		* @param int $julian_day
619		* @param bool $alafim_garesh
620		* @param bool $alafim
621		* @param bool $gereshayim
622		*
623		* @return string
624		*/
625		public function jdToHebrew($julian_day, $alafim_garesh, $alafim, $gereshayim)
626		{
627		list($year, $month, $day) = $this->jdToYmd($julian_day);
628
629		return
630		$this->numberToHebrewNumeralsIso8859($day, $gereshayim) . ' ' .
631		$this->hebrewMonthName($year, $month) . ' ' .
632		$this->yearToHebrewNumerals($year, $alafim_garesh, $alafim, $gereshayim);
633		}
634		}
635

fisharebest / ext-calendar

JewishCalendar::numberToNumerals() A last analyzed 2020-08-21 19:40 UTC

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JewishCalendar::numberToNumerals() A
last analyzed 2020-08-21 19:40 UTC