27b4240664
PHP 7.3+ uses Unicode CaseFolding.txt for case mappings. For Turkic languages(tr,az) the dotted i is given as a special case and we need to implement it specifically for tr and az. Updated the documentation and refactored the lcfirst and ucfirst methods to use arrays containing the above mentioned special cases. Bug: T207100 Change-Id: I317f2ca66b0adeaa79bc0f9e3dea5edfcd5e4693
71 lines
2.3 KiB
PHP
71 lines
2.3 KiB
PHP
<?php
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/**
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* Turkish (Türkçe) specific code.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Language
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*/
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/**
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* Turkish (Türkçe)
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*
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* The Turkish language, like other Turkic languages, distinguishes
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* a dotted letter 'i' from a dotless letter 'ı' (U+0131 LATIN SMALL LETTER DOTLESS I).
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* In these languages, each has an equivalent uppercase mapping:
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* ı (U+0131 LATIN SMALL LETTER DOTLESS I) -> I (U+0049 LATIN CAPITAL LETTER I),
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* i (U+0069 LATIN SMALL LETTER I) -> İ (U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE).
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*
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* Unicode CaseFolding.txt defines this case as type 'T', a special case for Turkic languages:
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* tr and az. PHP 7.3 parser ignores this special cases. so we have to override the
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* ucfirst and lcfirst methods.
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*
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* See https://en.wikipedia.org/wiki/Dotted_and_dotless_I and T30040
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* @ingroup Language
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*/
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class LanguageTr extends Language {
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private $uc = [ 'I', 'İ' ];
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private $lc = [ 'ı', 'i' ];
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/**
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* @param string $string
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* @return string
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*/
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public function ucfirst( $string ) {
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$first = mb_substr( $string, 0, 1 );
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if ( in_array( $first, $this->lc ) ) {
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$first = str_replace( $this->lc, $this->uc, $first );
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return $first . mb_substr( $string, 1 );
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}
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return parent::ucfirst( $string );
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}
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/**
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* @param string $string
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* @return mixed|string
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*/
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function lcfirst( $string ) {
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$first = mb_substr( $string, 0, 1 );
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if ( in_array( $first, $this->uc ) ) {
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$first = str_replace( $this->uc, $this->lc, $first );
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return $first . mb_substr( $string, 1 );
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}
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return parent::lcfirst( $string );
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}
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}
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