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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | */ |
| 18 | |
| 19 | namespace Wikimedia\Equivset; |
| 20 | |
| 21 | use ArrayIterator; |
| 22 | use IteratorAggregate; |
| 23 | use LogicException; |
| 24 | |
| 25 | /** |
| 26 | * Default Equivset |
| 27 | */ |
| 28 | class Equivset implements EquivsetInterface, IteratorAggregate { |
| 29 | |
| 30 | /** |
| 31 | * @var array<string,string> |
| 32 | */ |
| 33 | protected array $data; |
| 34 | |
| 35 | protected string $dataPath; |
| 36 | |
| 37 | /** |
| 38 | * @param array<string,string> $data Equivalent Set |
| 39 | * @param string $dataPath Path of the equivset array. |
| 40 | */ |
| 41 | public function __construct( array $data = [], string $dataPath = '' ) { |
| 42 | $this->data = $data; |
| 43 | $this->dataPath = $dataPath ?: __DIR__ . '/../dist/equivset.php'; |
| 44 | } |
| 45 | |
| 46 | /** {@inheritdoc} */ |
| 47 | public function all(): array { |
| 48 | if ( !$this->data ) { |
| 49 | $this->data = $this->load(); |
| 50 | } |
| 51 | |
| 52 | return $this->data; |
| 53 | } |
| 54 | |
| 55 | /** {@inheritdoc} */ |
| 56 | public function normalize( string $value ): string { |
| 57 | $data = $this->all(); |
| 58 | |
| 59 | return strtr( $value, $data ); |
| 60 | } |
| 61 | |
| 62 | /** {@inheritdoc} */ |
| 63 | public function isEqual( string $str1, string $str2 ): bool { |
| 64 | return $this->normalize( $str1 ) === $this->normalize( $str2 ); |
| 65 | } |
| 66 | |
| 67 | /** {@inheritdoc} */ |
| 68 | public function has( string $key ): bool { |
| 69 | $data = $this->all(); |
| 70 | |
| 71 | return array_key_exists( $key, $data ); |
| 72 | } |
| 73 | |
| 74 | /** {@inheritdoc} */ |
| 75 | public function get( string $key ): string { |
| 76 | $data = $this->all(); |
| 77 | |
| 78 | if ( !array_key_exists( $key, $data ) ) { |
| 79 | throw new LogicException( 'Equivalent Character Not Found' ); |
| 80 | } |
| 81 | |
| 82 | return $data[$key]; |
| 83 | } |
| 84 | |
| 85 | /** {@inheritdoc} */ |
| 86 | public function getIterator(): ArrayIterator { |
| 87 | return new ArrayIterator( $this->all() ); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Get the equivset. |
| 92 | * |
| 93 | * @return array<string,string> An associative array of equivalent characters. |
| 94 | */ |
| 95 | protected function load(): array { |
| 96 | // This will naturally throw if the file does not exist, is not readable, |
| 97 | // or can't be parsed. |
| 98 | return require $this->dataPath; |
| 99 | } |
| 100 | } |