wp/wp-includes/l10n/class-wp-translations.php
changeset 21 48c4eec2b7e6
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20:7b1b88e27a20 21:48c4eec2b7e6
       
     1 <?php
       
     2 /**
       
     3  * I18N: WP_Translations class.
       
     4  *
       
     5  * @package WordPress
       
     6  * @subpackage I18N
       
     7  * @since 6.5.0
       
     8  */
       
     9 
       
    10 /**
       
    11  * Class WP_Translations.
       
    12  *
       
    13  * @since 6.5.0
       
    14  *
       
    15  * @property-read array<string, string> $headers
       
    16  * @property-read array<string, string[]> $entries
       
    17  */
       
    18 class WP_Translations {
       
    19 	/**
       
    20 	 * Text domain.
       
    21 	 *
       
    22 	 * @since 6.5.0
       
    23 	 * @var string
       
    24 	 */
       
    25 	protected $textdomain = 'default';
       
    26 
       
    27 	/**
       
    28 	 * Translation controller instance.
       
    29 	 *
       
    30 	 * @since 6.5.0
       
    31 	 * @var WP_Translation_Controller
       
    32 	 */
       
    33 	protected $controller;
       
    34 
       
    35 	/**
       
    36 	 * Constructor.
       
    37 	 *
       
    38 	 * @since 6.5.0
       
    39 	 *
       
    40 	 * @param WP_Translation_Controller $controller I18N controller.
       
    41 	 * @param string                    $textdomain Optional. Text domain. Default 'default'.
       
    42 	 */
       
    43 	public function __construct( WP_Translation_Controller $controller, string $textdomain = 'default' ) {
       
    44 		$this->controller = $controller;
       
    45 		$this->textdomain = $textdomain;
       
    46 	}
       
    47 
       
    48 	/**
       
    49 	 * Magic getter for backward compatibility.
       
    50 	 *
       
    51 	 * @since 6.5.0
       
    52 	 *
       
    53 	 * @param string $name Property name.
       
    54 	 * @return mixed
       
    55 	 */
       
    56 	public function __get( string $name ) {
       
    57 		if ( 'entries' === $name ) {
       
    58 			$entries = $this->controller->get_entries( $this->textdomain );
       
    59 
       
    60 			$result = array();
       
    61 
       
    62 			foreach ( $entries as $original => $translations ) {
       
    63 				$result[] = $this->make_entry( $original, $translations );
       
    64 			}
       
    65 
       
    66 			return $result;
       
    67 		}
       
    68 
       
    69 		if ( 'headers' === $name ) {
       
    70 			return $this->controller->get_headers( $this->textdomain );
       
    71 		}
       
    72 
       
    73 		return null;
       
    74 	}
       
    75 
       
    76 	/**
       
    77 	 * Builds a Translation_Entry from original string and translation strings.
       
    78 	 *
       
    79 	 * @see MO::make_entry()
       
    80 	 *
       
    81 	 * @since 6.5.0
       
    82 	 *
       
    83 	 * @param string $original     Original string to translate from MO file. Might contain
       
    84 	 *                             0x04 as context separator or 0x00 as singular/plural separator.
       
    85 	 * @param string $translations Translation strings from MO file.
       
    86 	 * @return Translation_Entry Entry instance.
       
    87 	 */
       
    88 	private function make_entry( $original, $translations ): Translation_Entry {
       
    89 		$entry = new Translation_Entry();
       
    90 
       
    91 		// Look for context, separated by \4.
       
    92 		$parts = explode( "\4", $original );
       
    93 		if ( isset( $parts[1] ) ) {
       
    94 			$original       = $parts[1];
       
    95 			$entry->context = $parts[0];
       
    96 		}
       
    97 
       
    98 		$entry->singular     = $original;
       
    99 		$entry->translations = explode( "\0", $translations );
       
   100 		$entry->is_plural    = count( $entry->translations ) > 1;
       
   101 
       
   102 		return $entry;
       
   103 	}
       
   104 
       
   105 	/**
       
   106 	 * Translates a plural string.
       
   107 	 *
       
   108 	 * @since 6.5.0
       
   109 	 *
       
   110 	 * @param string|null $singular Singular string.
       
   111 	 * @param string|null $plural   Plural string.
       
   112 	 * @param int|float   $count    Count. Should be an integer, but some plugins pass floats.
       
   113 	 * @param string|null $context  Context.
       
   114 	 * @return string|null Translation if it exists, or the unchanged singular string.
       
   115 	 */
       
   116 	public function translate_plural( $singular, $plural, $count = 1, $context = '' ) {
       
   117 		if ( null === $singular || null === $plural ) {
       
   118 			return $singular;
       
   119 		}
       
   120 
       
   121 		$translation = $this->controller->translate_plural( array( $singular, $plural ), (int) $count, (string) $context, $this->textdomain );
       
   122 		if ( false !== $translation ) {
       
   123 			return $translation;
       
   124 		}
       
   125 
       
   126 		// Fall back to the original with English grammar rules.
       
   127 		return ( 1 === $count ? $singular : $plural );
       
   128 	}
       
   129 
       
   130 	/**
       
   131 	 * Translates a singular string.
       
   132 	 *
       
   133 	 * @since 6.5.0
       
   134 	 *
       
   135 	 * @param string|null $singular Singular string.
       
   136 	 * @param string|null $context  Context.
       
   137 	 * @return string|null Translation if it exists, or the unchanged singular string
       
   138 	 */
       
   139 	public function translate( $singular, $context = '' ) {
       
   140 		if ( null === $singular ) {
       
   141 			return null;
       
   142 		}
       
   143 
       
   144 		$translation = $this->controller->translate( $singular, (string) $context, $this->textdomain );
       
   145 		if ( false !== $translation ) {
       
   146 			return $translation;
       
   147 		}
       
   148 
       
   149 		// Fall back to the original.
       
   150 		return $singular;
       
   151 	}
       
   152 }