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path: root/app/SurnameTradition/IcelandicSurnameTradition.php
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<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2019 webtrees development team
 * 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/>.
 */
declare(strict_types=1);

namespace Fisharebest\Webtrees\SurnameTradition;

/**
 * Children take a patronym instead of a surname.
 *
 * Sons get their father’s given name plus “sson”
 * Daughters get their father’s given name plus “sdottir”
 */
class IcelandicSurnameTradition extends DefaultSurnameTradition
{
    /**
     * Does this surname tradition use surnames?
     *
     * @return bool
     */
    public function hasSurnames(): bool
    {
        return false;
    }

    /**
     * What names are given to a new child
     *
     * @param string $father_name A GEDCOM NAME
     * @param string $mother_name A GEDCOM NAME
     * @param string $child_sex   M, F or U
     *
     * @return string[] Associative array of GEDCOM name parts (SURN, _MARNM, etc.)
     */
    public function newChildNames(string $father_name, string $mother_name, string $child_sex): array
    {
        if (preg_match(self::REGEX_GIVN, $father_name, $father_match)) {
            switch ($child_sex) {
                case 'M':
                    return [
                        'NAME' => $father_match['GIVN'] . 'sson',
                    ];
                case 'F':
                    return [
                        'NAME' => $father_match['GIVN'] . 'sdottir',
                    ];
            }
        }

        return [];
    }

    /**
     * What names are given to a new parent
     *
     * @param string $child_name A GEDCOM NAME
     * @param string $parent_sex M, F or U
     *
     * @return string[] Associative array of GEDCOM name parts (SURN, _MARNM, etc.)
     */
    public function newParentNames(string $child_name, string $parent_sex): array
    {
        if ($parent_sex === 'M' && preg_match('~(?<GIVN>[^ /]+)(:?sson|sdottir)$~', $child_name, $child_match)) {
            return [
                'NAME' => $child_match['GIVN'],
                'GIVN' => $child_match['GIVN'],
            ];
        }

        return [];
    }

    /**
     * What names are given to a new spouse
     *
     * @param string $spouse_name A GEDCOM NAME
     * @param string $spouse_sex  M, F or U
     *
     * @return string[] Associative array of GEDCOM name parts (SURN, _MARNM, etc.)
     */
    public function newSpouseNames(string $spouse_name, string $spouse_sex): array
    {
        return [];
    }
}