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/wp-includes/ -> l10n.php (source)

   1  <?php
   2  /**
   3   * Core Translation API
   4   *
   5   * @package WordPress
   6   * @subpackage i18n
   7   * @since 1.2.0
   8   */
   9  
  10  /**
  11   * Retrieves the current locale.
  12   *
  13   * If the locale is set, then it will filter the locale in the {@see 'locale'}
  14   * filter hook and return the value.
  15   *
  16   * If the locale is not set already, then the WPLANG constant is used if it is
  17   * defined. Then it is filtered through the {@see 'locale'} filter hook and
  18   * the value for the locale global set and the locale is returned.
  19   *
  20   * The process to get the locale should only be done once, but the locale will
  21   * always be filtered using the {@see 'locale'} hook.
  22   *
  23   * @since 1.5.0
  24   *
  25   * @global string $locale           The current locale.
  26   * @global string $wp_local_package Locale code of the package.
  27   *
  28   * @return string The locale of the blog or from the {@see 'locale'} hook.
  29   */
  30  function get_locale() {
  31      global $locale, $wp_local_package;
  32  
  33      if ( isset( $locale ) ) {
  34          /** This filter is documented in wp-includes/l10n.php */
  35          return apply_filters( 'locale', $locale );
  36      }
  37  
  38      if ( isset( $wp_local_package ) ) {
  39          $locale = $wp_local_package;
  40      }
  41  
  42      // WPLANG was defined in wp-config.
  43      if ( defined( 'WPLANG' ) ) {
  44          $locale = WPLANG;
  45      }
  46  
  47      // If multisite, check options.
  48      if ( is_multisite() ) {
  49          // Don't check blog option when installing.
  50          if ( wp_installing() ) {
  51              $ms_locale = get_site_option( 'WPLANG' );
  52          } else {
  53              $ms_locale = get_option( 'WPLANG' );
  54              if ( false === $ms_locale ) {
  55                  $ms_locale = get_site_option( 'WPLANG' );
  56              }
  57          }
  58  
  59          if ( false !== $ms_locale ) {
  60              $locale = $ms_locale;
  61          }
  62      } else {
  63          $db_locale = get_option( 'WPLANG' );
  64          if ( false !== $db_locale ) {
  65              $locale = $db_locale;
  66          }
  67      }
  68  
  69      if ( empty( $locale ) ) {
  70          $locale = 'en_US';
  71      }
  72  
  73      /**
  74       * Filters the locale ID of the WordPress installation.
  75       *
  76       * @since 1.5.0
  77       *
  78       * @param string $locale The locale ID.
  79       */
  80      return apply_filters( 'locale', $locale );
  81  }
  82  
  83  /**
  84   * Retrieves the locale of a user.
  85   *
  86   * If the user has a locale set to a non-empty string then it will be
  87   * returned. Otherwise it returns the locale of get_locale().
  88   *
  89   * @since 4.7.0
  90   *
  91   * @param int|WP_User $user User's ID or a WP_User object. Defaults to current user.
  92   * @return string The locale of the user.
  93   */
  94  function get_user_locale( $user = 0 ) {
  95      $user_object = false;
  96  
  97      if ( 0 === $user && function_exists( 'wp_get_current_user' ) ) {
  98          $user_object = wp_get_current_user();
  99      } elseif ( $user instanceof WP_User ) {
 100          $user_object = $user;
 101      } elseif ( $user && is_numeric( $user ) ) {
 102          $user_object = get_user_by( 'id', $user );
 103      }
 104  
 105      if ( ! $user_object ) {
 106          return get_locale();
 107      }
 108  
 109      $locale = $user_object->locale;
 110  
 111      return $locale ? $locale : get_locale();
 112  }
 113  
 114  /**
 115   * Determines the current locale desired for the request.
 116   *
 117   * @since 5.0.0
 118   *
 119   * @global string $pagenow          The filename of the current screen.
 120   * @global string $wp_local_package Locale code of the package.
 121   *
 122   * @return string The determined locale.
 123   */
 124  function determine_locale() {
 125      /**
 126       * Filters the locale for the current request prior to the default determination process.
 127       *
 128       * Using this filter allows to override the default logic, effectively short-circuiting the function.
 129       *
 130       * @since 5.0.0
 131       *
 132       * @param string|null $locale The locale to return and short-circuit. Default null.
 133       */
 134      $determined_locale = apply_filters( 'pre_determine_locale', null );
 135  
 136      if ( $determined_locale && is_string( $determined_locale ) ) {
 137          return $determined_locale;
 138      }
 139  
 140      if (
 141          isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] &&
 142          ( ! empty( $_GET['wp_lang'] ) || ! empty( $_COOKIE['wp_lang'] ) )
 143      ) {
 144          if ( ! empty( $_GET['wp_lang'] ) ) {
 145              $determined_locale = sanitize_locale_name( $_GET['wp_lang'] );
 146          } else {
 147              $determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] );
 148          }
 149      } elseif (
 150          is_admin() ||
 151          ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() )
 152      ) {
 153          $determined_locale = get_user_locale();
 154      } elseif (
 155          ( ! empty( $_REQUEST['language'] ) || isset( $GLOBALS['wp_local_package'] ) )
 156          && wp_installing()
 157      ) {
 158          if ( ! empty( $_REQUEST['language'] ) ) {
 159              $determined_locale = sanitize_locale_name( $_REQUEST['language'] );
 160          } else {
 161              $determined_locale = $GLOBALS['wp_local_package'];
 162          }
 163      }
 164  
 165      if ( ! $determined_locale ) {
 166          $determined_locale = get_locale();
 167      }
 168  
 169      /**
 170       * Filters the locale for the current request.
 171       *
 172       * @since 5.0.0
 173       *
 174       * @param string $determined_locale The locale.
 175       */
 176      return apply_filters( 'determine_locale', $determined_locale );
 177  }
 178  
 179  /**
 180   * Retrieves the translation of $text.
 181   *
 182   * If there is no translation, or the text domain isn't loaded, the original text is returned.
 183   *
 184   * *Note:* Don't use translate() directly, use __() or related functions.
 185   *
 186   * @since 2.2.0
 187   * @since 5.5.0 Introduced `gettext-{$domain}` filter.
 188   *
 189   * @param string $text   Text to translate.
 190   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 191   *                       Default 'default'.
 192   * @return string Translated text.
 193   */
 194  function translate( $text, $domain = 'default' ) {
 195      $translations = get_translations_for_domain( $domain );
 196      $translation  = $translations->translate( $text );
 197  
 198      /**
 199       * Filters text with its translation.
 200       *
 201       * @since 2.0.11
 202       *
 203       * @param string $translation Translated text.
 204       * @param string $text        Text to translate.
 205       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 206       */
 207      $translation = apply_filters( 'gettext', $translation, $text, $domain );
 208  
 209      /**
 210       * Filters text with its translation for a domain.
 211       *
 212       * The dynamic portion of the hook name, `$domain`, refers to the text domain.
 213       *
 214       * @since 5.5.0
 215       *
 216       * @param string $translation Translated text.
 217       * @param string $text        Text to translate.
 218       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 219       */
 220      $translation = apply_filters( "gettext_{$domain}", $translation, $text, $domain );
 221  
 222      return $translation;
 223  }
 224  
 225  /**
 226   * Removes last item on a pipe-delimited string.
 227   *
 228   * Meant for removing the last item in a string, such as 'Role name|User role'. The original
 229   * string will be returned if no pipe '|' characters are found in the string.
 230   *
 231   * @since 2.8.0
 232   *
 233   * @param string $text A pipe-delimited string.
 234   * @return string Either $text or everything before the last pipe.
 235   */
 236  function before_last_bar( $text ) {
 237      $last_bar = strrpos( $text, '|' );
 238      if ( false === $last_bar ) {
 239          return $text;
 240      } else {
 241          return substr( $text, 0, $last_bar );
 242      }
 243  }
 244  
 245  /**
 246   * Retrieves the translation of $text in the context defined in $context.
 247   *
 248   * If there is no translation, or the text domain isn't loaded, the original text is returned.
 249   *
 250   * *Note:* Don't use translate_with_gettext_context() directly, use _x() or related functions.
 251   *
 252   * @since 2.8.0
 253   * @since 5.5.0 Introduced `gettext_with_context-{$domain}` filter.
 254   *
 255   * @param string $text    Text to translate.
 256   * @param string $context Context information for the translators.
 257   * @param string $domain  Optional. Text domain. Unique identifier for retrieving translated strings.
 258   *                        Default 'default'.
 259   * @return string Translated text on success, original text on failure.
 260   */
 261  function translate_with_gettext_context( $text, $context, $domain = 'default' ) {
 262      $translations = get_translations_for_domain( $domain );
 263      $translation  = $translations->translate( $text, $context );
 264  
 265      /**
 266       * Filters text with its translation based on context information.
 267       *
 268       * @since 2.8.0
 269       *
 270       * @param string $translation Translated text.
 271       * @param string $text        Text to translate.
 272       * @param string $context     Context information for the translators.
 273       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 274       */
 275      $translation = apply_filters( 'gettext_with_context', $translation, $text, $context, $domain );
 276  
 277      /**
 278       * Filters text with its translation based on context information for a domain.
 279       *
 280       * The dynamic portion of the hook name, `$domain`, refers to the text domain.
 281       *
 282       * @since 5.5.0
 283       *
 284       * @param string $translation Translated text.
 285       * @param string $text        Text to translate.
 286       * @param string $context     Context information for the translators.
 287       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 288       */
 289      $translation = apply_filters( "gettext_with_context_{$domain}", $translation, $text, $context, $domain );
 290  
 291      return $translation;
 292  }
 293  
 294  /**
 295   * Retrieves the translation of $text.
 296   *
 297   * If there is no translation, or the text domain isn't loaded, the original text is returned.
 298   *
 299   * @since 2.1.0
 300   *
 301   * @param string $text   Text to translate.
 302   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 303   *                       Default 'default'.
 304   * @return string Translated text.
 305   */
 306  function __( $text, $domain = 'default' ) {
 307      return translate( $text, $domain );
 308  }
 309  
 310  /**
 311   * Retrieves the translation of $text and escapes it for safe use in an attribute.
 312   *
 313   * If there is no translation, or the text domain isn't loaded, the original text is returned.
 314   *
 315   * @since 2.8.0
 316   *
 317   * @param string $text   Text to translate.
 318   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 319   *                       Default 'default'.
 320   * @return string Translated text on success, original text on failure.
 321   */
 322  function esc_attr__( $text, $domain = 'default' ) {
 323      return esc_attr( translate( $text, $domain ) );
 324  }
 325  
 326  /**
 327   * Retrieves the translation of $text and escapes it for safe use in HTML output.
 328   *
 329   * If there is no translation, or the text domain isn't loaded, the original text
 330   * is escaped and returned.
 331   *
 332   * @since 2.8.0
 333   *
 334   * @param string $text   Text to translate.
 335   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 336   *                       Default 'default'.
 337   * @return string Translated text.
 338   */
 339  function esc_html__( $text, $domain = 'default' ) {
 340      return esc_html( translate( $text, $domain ) );
 341  }
 342  
 343  /**
 344   * Displays translated text.
 345   *
 346   * @since 1.2.0
 347   *
 348   * @param string $text   Text to translate.
 349   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 350   *                       Default 'default'.
 351   */
 352  function _e( $text, $domain = 'default' ) {
 353      echo translate( $text, $domain );
 354  }
 355  
 356  /**
 357   * Displays translated text that has been escaped for safe use in an attribute.
 358   *
 359   * Encodes `< > & " '` (less than, greater than, ampersand, double quote, single quote).
 360   * Will never double encode entities.
 361   *
 362   * If you need the value for use in PHP, use esc_attr__().
 363   *
 364   * @since 2.8.0
 365   *
 366   * @param string $text   Text to translate.
 367   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 368   *                       Default 'default'.
 369   */
 370  function esc_attr_e( $text, $domain = 'default' ) {
 371      echo esc_attr( translate( $text, $domain ) );
 372  }
 373  
 374  /**
 375   * Displays translated text that has been escaped for safe use in HTML output.
 376   *
 377   * If there is no translation, or the text domain isn't loaded, the original text
 378   * is escaped and displayed.
 379   *
 380   * If you need the value for use in PHP, use esc_html__().
 381   *
 382   * @since 2.8.0
 383   *
 384   * @param string $text   Text to translate.
 385   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 386   *                       Default 'default'.
 387   */
 388  function esc_html_e( $text, $domain = 'default' ) {
 389      echo esc_html( translate( $text, $domain ) );
 390  }
 391  
 392  /**
 393   * Retrieves translated string with gettext context.
 394   *
 395   * Quite a few times, there will be collisions with similar translatable text
 396   * found in more than two places, but with different translated context.
 397   *
 398   * By including the context in the pot file, translators can translate the two
 399   * strings differently.
 400   *
 401   * @since 2.8.0
 402   *
 403   * @param string $text    Text to translate.
 404   * @param string $context Context information for the translators.
 405   * @param string $domain  Optional. Text domain. Unique identifier for retrieving translated strings.
 406   *                        Default 'default'.
 407   * @return string Translated context string without pipe.
 408   */
 409  function _x( $text, $context, $domain = 'default' ) {
 410      return translate_with_gettext_context( $text, $context, $domain );
 411  }
 412  
 413  /**
 414   * Displays translated string with gettext context.
 415   *
 416   * @since 3.0.0
 417   *
 418   * @param string $text    Text to translate.
 419   * @param string $context Context information for the translators.
 420   * @param string $domain  Optional. Text domain. Unique identifier for retrieving translated strings.
 421   *                        Default 'default'.
 422   */
 423  function _ex( $text, $context, $domain = 'default' ) {
 424      echo _x( $text, $context, $domain );
 425  }
 426  
 427  /**
 428   * Translates string with gettext context, and escapes it for safe use in an attribute.
 429   *
 430   * If there is no translation, or the text domain isn't loaded, the original text
 431   * is escaped and returned.
 432   *
 433   * @since 2.8.0
 434   *
 435   * @param string $text    Text to translate.
 436   * @param string $context Context information for the translators.
 437   * @param string $domain  Optional. Text domain. Unique identifier for retrieving translated strings.
 438   *                        Default 'default'.
 439   * @return string Translated text.
 440   */
 441  function esc_attr_x( $text, $context, $domain = 'default' ) {
 442      return esc_attr( translate_with_gettext_context( $text, $context, $domain ) );
 443  }
 444  
 445  /**
 446   * Translates string with gettext context, and escapes it for safe use in HTML output.
 447   *
 448   * If there is no translation, or the text domain isn't loaded, the original text
 449   * is escaped and returned.
 450   *
 451   * @since 2.9.0
 452   *
 453   * @param string $text    Text to translate.
 454   * @param string $context Context information for the translators.
 455   * @param string $domain  Optional. Text domain. Unique identifier for retrieving translated strings.
 456   *                        Default 'default'.
 457   * @return string Translated text.
 458   */
 459  function esc_html_x( $text, $context, $domain = 'default' ) {
 460      return esc_html( translate_with_gettext_context( $text, $context, $domain ) );
 461  }
 462  
 463  /**
 464   * Translates and retrieves the singular or plural form based on the supplied number.
 465   *
 466   * Used when you want to use the appropriate form of a string based on whether a
 467   * number is singular or plural.
 468   *
 469   * Example:
 470   *
 471   *     printf( _n( '%s person', '%s people', $count, 'text-domain' ), number_format_i18n( $count ) );
 472   *
 473   * @since 2.8.0
 474   * @since 5.5.0 Introduced `ngettext-{$domain}` filter.
 475   *
 476   * @param string $single The text to be used if the number is singular.
 477   * @param string $plural The text to be used if the number is plural.
 478   * @param int    $number The number to compare against to use either the singular or plural form.
 479   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 480   *                       Default 'default'.
 481   * @return string The translated singular or plural form.
 482   */
 483  function _n( $single, $plural, $number, $domain = 'default' ) {
 484      $translations = get_translations_for_domain( $domain );
 485      $translation  = $translations->translate_plural( $single, $plural, $number );
 486  
 487      /**
 488       * Filters the singular or plural form of a string.
 489       *
 490       * @since 2.2.0
 491       *
 492       * @param string $translation Translated text.
 493       * @param string $single      The text to be used if the number is singular.
 494       * @param string $plural      The text to be used if the number is plural.
 495       * @param int    $number      The number to compare against to use either the singular or plural form.
 496       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 497       */
 498      $translation = apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain );
 499  
 500      /**
 501       * Filters the singular or plural form of a string for a domain.
 502       *
 503       * The dynamic portion of the hook name, `$domain`, refers to the text domain.
 504       *
 505       * @since 5.5.0
 506       *
 507       * @param string $translation Translated text.
 508       * @param string $single      The text to be used if the number is singular.
 509       * @param string $plural      The text to be used if the number is plural.
 510       * @param int    $number      The number to compare against to use either the singular or plural form.
 511       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 512       */
 513      $translation = apply_filters( "ngettext_{$domain}", $translation, $single, $plural, $number, $domain );
 514  
 515      return $translation;
 516  }
 517  
 518  /**
 519   * Translates and retrieves the singular or plural form based on the supplied number, with gettext context.
 520   *
 521   * This is a hybrid of _n() and _x(). It supports context and plurals.
 522   *
 523   * Used when you want to use the appropriate form of a string with context based on whether a
 524   * number is singular or plural.
 525   *
 526   * Example of a generic phrase which is disambiguated via the context parameter:
 527   *
 528   *     printf( _nx( '%s group', '%s groups', $people, 'group of people', 'text-domain' ), number_format_i18n( $people ) );
 529   *     printf( _nx( '%s group', '%s groups', $animals, 'group of animals', 'text-domain' ), number_format_i18n( $animals ) );
 530   *
 531   * @since 2.8.0
 532   * @since 5.5.0 Introduced `ngettext_with_context-{$domain}` filter.
 533   *
 534   * @param string $single  The text to be used if the number is singular.
 535   * @param string $plural  The text to be used if the number is plural.
 536   * @param int    $number  The number to compare against to use either the singular or plural form.
 537   * @param string $context Context information for the translators.
 538   * @param string $domain  Optional. Text domain. Unique identifier for retrieving translated strings.
 539   *                        Default 'default'.
 540   * @return string The translated singular or plural form.
 541   */
 542  function _nx( $single, $plural, $number, $context, $domain = 'default' ) {
 543      $translations = get_translations_for_domain( $domain );
 544      $translation  = $translations->translate_plural( $single, $plural, $number, $context );
 545  
 546      /**
 547       * Filters the singular or plural form of a string with gettext context.
 548       *
 549       * @since 2.8.0
 550       *
 551       * @param string $translation Translated text.
 552       * @param string $single      The text to be used if the number is singular.
 553       * @param string $plural      The text to be used if the number is plural.
 554       * @param int    $number      The number to compare against to use either the singular or plural form.
 555       * @param string $context     Context information for the translators.
 556       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 557       */
 558      $translation = apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain );
 559  
 560      /**
 561       * Filters the singular or plural form of a string with gettext context for a domain.
 562       *
 563       * The dynamic portion of the hook name, `$domain`, refers to the text domain.
 564       *
 565       * @since 5.5.0
 566       *
 567       * @param string $translation Translated text.
 568       * @param string $single      The text to be used if the number is singular.
 569       * @param string $plural      The text to be used if the number is plural.
 570       * @param int    $number      The number to compare against to use either the singular or plural form.
 571       * @param string $context     Context information for the translators.
 572       * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
 573       */
 574      $translation = apply_filters( "ngettext_with_context_{$domain}", $translation, $single, $plural, $number, $context, $domain );
 575  
 576      return $translation;
 577  }
 578  
 579  /**
 580   * Registers plural strings in POT file, but does not translate them.
 581   *
 582   * Used when you want to keep structures with translatable plural
 583   * strings and use them later when the number is known.
 584   *
 585   * Example:
 586   *
 587   *     $message = _n_noop( '%s post', '%s posts', 'text-domain' );
 588   *     ...
 589   *     printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );
 590   *
 591   * @since 2.5.0
 592   *
 593   * @param string $singular Singular form to be localized.
 594   * @param string $plural   Plural form to be localized.
 595   * @param string $domain   Optional. Text domain. Unique identifier for retrieving translated strings.
 596   *                         Default null.
 597   * @return array {
 598   *     Array of translation information for the strings.
 599   *
 600   *     @type string      $0        Singular form to be localized. No longer used.
 601   *     @type string      $1        Plural form to be localized. No longer used.
 602   *     @type string      $singular Singular form to be localized.
 603   *     @type string      $plural   Plural form to be localized.
 604   *     @type null        $context  Context information for the translators.
 605   *     @type string|null $domain   Text domain.
 606   * }
 607   */
 608  function _n_noop( $singular, $plural, $domain = null ) {
 609      return array(
 610          0          => $singular,
 611          1          => $plural,
 612          'singular' => $singular,
 613          'plural'   => $plural,
 614          'context'  => null,
 615          'domain'   => $domain,
 616      );
 617  }
 618  
 619  /**
 620   * Registers plural strings with gettext context in POT file, but does not translate them.
 621   *
 622   * Used when you want to keep structures with translatable plural
 623   * strings and use them later when the number is known.
 624   *
 625   * Example of a generic phrase which is disambiguated via the context parameter:
 626   *
 627   *     $messages = array(
 628   *          'people'  => _nx_noop( '%s group', '%s groups', 'people', 'text-domain' ),
 629   *          'animals' => _nx_noop( '%s group', '%s groups', 'animals', 'text-domain' ),
 630   *     );
 631   *     ...
 632   *     $message = $messages[ $type ];
 633   *     printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );
 634   *
 635   * @since 2.8.0
 636   *
 637   * @param string $singular Singular form to be localized.
 638   * @param string $plural   Plural form to be localized.
 639   * @param string $context  Context information for the translators.
 640   * @param string $domain   Optional. Text domain. Unique identifier for retrieving translated strings.
 641   *                         Default null.
 642   * @return array {
 643   *     Array of translation information for the strings.
 644   *
 645   *     @type string      $0        Singular form to be localized. No longer used.
 646   *     @type string      $1        Plural form to be localized. No longer used.
 647   *     @type string      $2        Context information for the translators. No longer used.
 648   *     @type string      $singular Singular form to be localized.
 649   *     @type string      $plural   Plural form to be localized.
 650   *     @type string      $context  Context information for the translators.
 651   *     @type string|null $domain   Text domain.
 652   * }
 653   */
 654  function _nx_noop( $singular, $plural, $context, $domain = null ) {
 655      return array(
 656          0          => $singular,
 657          1          => $plural,
 658          2          => $context,
 659          'singular' => $singular,
 660          'plural'   => $plural,
 661          'context'  => $context,
 662          'domain'   => $domain,
 663      );
 664  }
 665  
 666  /**
 667   * Translates and returns the singular or plural form of a string that's been registered
 668   * with _n_noop() or _nx_noop().
 669   *
 670   * Used when you want to use a translatable plural string once the number is known.
 671   *
 672   * Example:
 673   *
 674   *     $message = _n_noop( '%s post', '%s posts', 'text-domain' );
 675   *     ...
 676   *     printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );
 677   *
 678   * @since 3.1.0
 679   *
 680   * @param array  $nooped_plural {
 681   *     Array that is usually a return value from _n_noop() or _nx_noop().
 682   *
 683   *     @type string      $singular Singular form to be localized.
 684   *     @type string      $plural   Plural form to be localized.
 685   *     @type string|null $context  Context information for the translators.
 686   *     @type string|null $domain   Text domain.
 687   * }
 688   * @param int    $count         Number of objects.
 689   * @param string $domain        Optional. Text domain. Unique identifier for retrieving translated strings. If $nooped_plural contains
 690   *                              a text domain passed to _n_noop() or _nx_noop(), it will override this value. Default 'default'.
 691   * @return string Either $singular or $plural translated text.
 692   */
 693  function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) {
 694      if ( $nooped_plural['domain'] ) {
 695          $domain = $nooped_plural['domain'];
 696      }
 697  
 698      if ( $nooped_plural['context'] ) {
 699          return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain );
 700      } else {
 701          return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain );
 702      }
 703  }
 704  
 705  /**
 706   * Loads a .mo file into the text domain $domain.
 707   *
 708   * If the text domain already exists, the translations will be merged. If both
 709   * sets have the same string, the translation from the original value will be taken.
 710   *
 711   * On success, the .mo file will be placed in the $l10n global by $domain
 712   * and will be a MO object.
 713   *
 714   * @since 1.5.0
 715   * @since 6.1.0 Added the `$locale` parameter.
 716   *
 717   * @global MO[]                   $l10n                   An array of all currently loaded text domains.
 718   * @global MO[]                   $l10n_unloaded          An array of all text domains that have been unloaded again.
 719   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
 720   *
 721   * @param string $domain Text domain. Unique identifier for retrieving translated strings.
 722   * @param string $mofile Path to the .mo file.
 723   * @param string $locale Optional. Locale. Default is the current locale.
 724   * @return bool True on success, false on failure.
 725   */
 726  function load_textdomain( $domain, $mofile, $locale = null ) {
 727      /** @var WP_Textdomain_Registry $wp_textdomain_registry */
 728      global $l10n, $l10n_unloaded, $wp_textdomain_registry;
 729  
 730      $l10n_unloaded = (array) $l10n_unloaded;
 731  
 732      if ( ! is_string( $domain ) ) {
 733          return false;
 734      }
 735  
 736      /**
 737       * Filters whether to short-circuit loading .mo file.
 738       *
 739       * Returning a non-null value from the filter will effectively short-circuit
 740       * the loading, returning the passed value instead.
 741       *
 742       * @since 6.3.0
 743       *
 744       * @param bool|null   $loaded The result of loading a .mo file. Default null.
 745       * @param string      $domain Text domain. Unique identifier for retrieving translated strings.
 746       * @param string      $mofile Path to the MO file.
 747       * @param string|null $locale Locale.
 748       */
 749      $loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale );
 750      if ( null !== $loaded ) {
 751          if ( true === $loaded ) {
 752              unset( $l10n_unloaded[ $domain ] );
 753          }
 754  
 755          return $loaded;
 756      }
 757  
 758      /**
 759       * Filters whether to override the .mo file loading.
 760       *
 761       * @since 2.9.0
 762       * @since 6.2.0 Added the `$locale` parameter.
 763       *
 764       * @param bool        $override Whether to override the .mo file loading. Default false.
 765       * @param string      $domain   Text domain. Unique identifier for retrieving translated strings.
 766       * @param string      $mofile   Path to the MO file.
 767       * @param string|null $locale   Locale.
 768       */
 769      $plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile, $locale );
 770  
 771      if ( true === (bool) $plugin_override ) {
 772          unset( $l10n_unloaded[ $domain ] );
 773  
 774          return true;
 775      }
 776  
 777      /**
 778       * Fires before the MO translation file is loaded.
 779       *
 780       * @since 2.9.0
 781       *
 782       * @param string $domain Text domain. Unique identifier for retrieving translated strings.
 783       * @param string $mofile Path to the .mo file.
 784       */
 785      do_action( 'load_textdomain', $domain, $mofile );
 786  
 787      /**
 788       * Filters MO file path for loading translations for a specific text domain.
 789       *
 790       * @since 2.9.0
 791       *
 792       * @param string $mofile Path to the MO file.
 793       * @param string $domain Text domain. Unique identifier for retrieving translated strings.
 794       */
 795      $mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );
 796  
 797      if ( ! $locale ) {
 798          $locale = determine_locale();
 799      }
 800  
 801      $i18n_controller = WP_Translation_Controller::get_instance();
 802  
 803      // Ensures the correct locale is set as the current one, in case it was filtered.
 804      $i18n_controller->set_locale( $locale );
 805  
 806      /**
 807       * Filters the preferred file format for translation files.
 808       *
 809       * Can be used to disable the use of PHP files for translations.
 810       *
 811       * @since 6.5.0
 812       *
 813       * @param string $preferred_format Preferred file format. Possible values: 'php', 'mo'. Default: 'php'.
 814       * @param string $domain           The text domain.
 815       */
 816      $preferred_format = apply_filters( 'translation_file_format', 'php', $domain );
 817      if ( ! in_array( $preferred_format, array( 'php', 'mo' ), true ) ) {
 818          $preferred_format = 'php';
 819      }
 820  
 821      $translation_files = array();
 822  
 823      if ( 'mo' !== $preferred_format ) {
 824          $translation_files[] = substr_replace( $mofile, ".l10n.$preferred_format", - strlen( '.mo' ) );
 825      }
 826  
 827      $translation_files[] = $mofile;
 828  
 829      foreach ( $translation_files as $file ) {
 830          /**
 831           * Filters the file path for loading translations for the given text domain.
 832           *
 833           * Similar to the {@see 'load_textdomain_mofile'} filter with the difference that
 834           * the file path could be for an MO or PHP file.
 835           *
 836           * @since 6.5.0
 837           * @since 6.6.0 Added the `$locale` parameter.
 838           *
 839           * @param string $file   Path to the translation file to load.
 840           * @param string $domain The text domain.
 841           * @param string $locale The locale.
 842           */
 843          $file = (string) apply_filters( 'load_translation_file', $file, $domain, $locale );
 844  
 845          $success = $i18n_controller->load_file( $file, $domain, $locale );
 846  
 847          if ( $success ) {
 848              if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof MO ) {
 849                  $i18n_controller->load_file( $l10n[ $domain ]->get_filename(), $domain, $locale );
 850              }
 851  
 852              // Unset NOOP_Translations reference in get_translations_for_domain().
 853              unset( $l10n[ $domain ] );
 854  
 855              $l10n[ $domain ] = new WP_Translations( $i18n_controller, $domain );
 856  
 857              $wp_textdomain_registry->set( $domain, $locale, dirname( $file ) );
 858  
 859              return true;
 860          }
 861      }
 862  
 863      return false;
 864  }
 865  
 866  /**
 867   * Unloads translations for a text domain.
 868   *
 869   * @since 3.0.0
 870   * @since 6.1.0 Added the `$reloadable` parameter.
 871   *
 872   * @global MO[] $l10n          An array of all currently loaded text domains.
 873   * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again.
 874   *
 875   * @param string $domain     Text domain. Unique identifier for retrieving translated strings.
 876   * @param bool   $reloadable Whether the text domain can be loaded just-in-time again.
 877   * @return bool Whether textdomain was unloaded.
 878   */
 879  function unload_textdomain( $domain, $reloadable = false ) {
 880      global $l10n, $l10n_unloaded;
 881  
 882      $l10n_unloaded = (array) $l10n_unloaded;
 883  
 884      /**
 885       * Filters whether to override the text domain unloading.
 886       *
 887       * @since 3.0.0
 888       * @since 6.1.0 Added the `$reloadable` parameter.
 889       *
 890       * @param bool   $override   Whether to override the text domain unloading. Default false.
 891       * @param string $domain     Text domain. Unique identifier for retrieving translated strings.
 892       * @param bool   $reloadable Whether the text domain can be loaded just-in-time again.
 893       */
 894      $plugin_override = apply_filters( 'override_unload_textdomain', false, $domain, $reloadable );
 895  
 896      if ( $plugin_override ) {
 897          if ( ! $reloadable ) {
 898              $l10n_unloaded[ $domain ] = true;
 899          }
 900  
 901          return true;
 902      }
 903  
 904      /**
 905       * Fires before the text domain is unloaded.
 906       *
 907       * @since 3.0.0
 908       * @since 6.1.0 Added the `$reloadable` parameter.
 909       *
 910       * @param string $domain     Text domain. Unique identifier for retrieving translated strings.
 911       * @param bool   $reloadable Whether the text domain can be loaded just-in-time again.
 912       */
 913      do_action( 'unload_textdomain', $domain, $reloadable );
 914  
 915      // Since multiple locales are supported, reloadable text domains don't actually need to be unloaded.
 916      if ( ! $reloadable ) {
 917          WP_Translation_Controller::get_instance()->unload_textdomain( $domain );
 918      }
 919  
 920      if ( isset( $l10n[ $domain ] ) ) {
 921          if ( $l10n[ $domain ] instanceof NOOP_Translations ) {
 922              unset( $l10n[ $domain ] );
 923  
 924              return false;
 925          }
 926  
 927          unset( $l10n[ $domain ] );
 928  
 929          if ( ! $reloadable ) {
 930              $l10n_unloaded[ $domain ] = true;
 931          }
 932  
 933          return true;
 934      }
 935  
 936      return false;
 937  }
 938  
 939  /**
 940   * Loads default translated strings based on locale.
 941   *
 942   * Loads the .mo file in WP_LANG_DIR constant path from WordPress root.
 943   * The translated (.mo) file is named based on the locale.
 944   *
 945   * @see load_textdomain()
 946   *
 947   * @since 1.5.0
 948   *
 949   * @param string $locale Optional. Locale to load. Default is the value of get_locale().
 950   * @return bool Whether the textdomain was loaded.
 951   */
 952  function load_default_textdomain( $locale = null ) {
 953      if ( null === $locale ) {
 954          $locale = determine_locale();
 955      }
 956  
 957      // Unload previously loaded strings so we can switch translations.
 958      unload_textdomain( 'default', true );
 959  
 960      $return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo", $locale );
 961  
 962      if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists( WP_LANG_DIR . "/admin-$locale.mo" ) ) {
 963          load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo", $locale );
 964          return $return;
 965      }
 966  
 967      if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) || doing_action( 'wp_maybe_auto_update' ) ) {
 968          load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo", $locale );
 969      }
 970  
 971      if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) {
 972          load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo", $locale );
 973      }
 974  
 975      return $return;
 976  }
 977  
 978  /**
 979   * Loads a plugin's translated strings.
 980   *
 981   * If the path is not given then it will be the root of the plugin directory.
 982   *
 983   * The .mo file should be named based on the text domain with a dash, and then the locale exactly.
 984   *
 985   * @since 1.5.0
 986   * @since 4.6.0 The function now tries to load the .mo file from the languages directory first.
 987   * @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
 988   *
 989   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
 990   * @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains.
 991   *
 992   * @param string       $domain          Unique identifier for retrieving translated strings
 993   * @param string|false $deprecated      Optional. Deprecated. Use the $plugin_rel_path parameter instead.
 994   *                                      Default false.
 995   * @param string|false $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR where the .mo file resides.
 996   *                                      Default false.
 997   * @return bool True when textdomain is successfully loaded, false otherwise.
 998   */
 999  function load_plugin_textdomain( $domain, $deprecated = false, $plugin_rel_path = false ) {
1000      /** @var WP_Textdomain_Registry $wp_textdomain_registry */
1001      /** @var array<string, WP_Translations|NOOP_Translations> $l10n */
1002      global $wp_textdomain_registry, $l10n;
1003  
1004      if ( ! is_string( $domain ) ) {
1005          return false;
1006      }
1007  
1008      if ( false !== $plugin_rel_path ) {
1009          $path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
1010      } elseif ( false !== $deprecated ) {
1011          _deprecated_argument( __FUNCTION__, '2.7.0' );
1012          $path = ABSPATH . trim( $deprecated, '/' );
1013      } else {
1014          $path = WP_PLUGIN_DIR;
1015      }
1016  
1017      $wp_textdomain_registry->set_custom_path( $domain, $path );
1018  
1019      // If just-in-time loading was triggered before, reset the entry so it can be tried again.
1020      if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) {
1021          unset( $l10n[ $domain ] );
1022      }
1023  
1024      return true;
1025  }
1026  
1027  /**
1028   * Loads the translated strings for a plugin residing in the mu-plugins directory.
1029   *
1030   * @since 3.0.0
1031   * @since 4.6.0 The function now tries to load the .mo file from the languages directory first.
1032   * @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
1033   *
1034   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
1035   * @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains.
1036   *
1037   * @param string $domain             Text domain. Unique identifier for retrieving translated strings.
1038   * @param string $mu_plugin_rel_path Optional. Relative to `WPMU_PLUGIN_DIR` directory in which the .mo
1039   *                                   file resides. Default empty string.
1040   * @return bool True when textdomain is successfully loaded, false otherwise.
1041   */
1042  function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) {
1043      /** @var WP_Textdomain_Registry $wp_textdomain_registry */
1044      /** @var array<string, WP_Translations|NOOP_Translations> $l10n */
1045      global $wp_textdomain_registry, $l10n;
1046  
1047      if ( ! is_string( $domain ) ) {
1048          return false;
1049      }
1050  
1051      $path = WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' );
1052  
1053      $wp_textdomain_registry->set_custom_path( $domain, $path );
1054  
1055      // If just-in-time loading was triggered before, reset the entry so it can be tried again.
1056      if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) {
1057          unset( $l10n[ $domain ] );
1058      }
1059  
1060      return true;
1061  }
1062  
1063  /**
1064   * Loads the theme's translated strings.
1065   *
1066   * If the current locale exists as a .mo file in the theme's root directory, it
1067   * will be included in the translated strings by the $domain.
1068   *
1069   * The .mo files must be named based on the locale exactly.
1070   *
1071   * @since 1.5.0
1072   * @since 4.6.0 The function now tries to load the .mo file from the languages directory first.
1073   * @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
1074   *
1075   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
1076   * @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains.
1077   *
1078   * @param string       $domain Text domain. Unique identifier for retrieving translated strings.
1079   * @param string|false $path   Optional. Path to the directory containing the .mo file.
1080   *                             Default false.
1081   * @return bool True when textdomain is successfully loaded, false otherwise.
1082   */
1083  function load_theme_textdomain( $domain, $path = false ) {
1084      /** @var WP_Textdomain_Registry $wp_textdomain_registry */
1085      /** @var array<string, WP_Translations|NOOP_Translations> $l10n */
1086      global $wp_textdomain_registry, $l10n;
1087  
1088      if ( ! is_string( $domain ) ) {
1089          return false;
1090      }
1091  
1092      if ( ! $path ) {
1093          $path = get_template_directory();
1094      }
1095  
1096      $wp_textdomain_registry->set_custom_path( $domain, $path );
1097  
1098      // If just-in-time loading was triggered before, reset the entry so it can be tried again.
1099      if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) {
1100          unset( $l10n[ $domain ] );
1101      }
1102  
1103      return true;
1104  }
1105  
1106  /**
1107   * Loads the child theme's translated strings.
1108   *
1109   * If the current locale exists as a .mo file in the child theme's
1110   * root directory, it will be included in the translated strings by the $domain.
1111   *
1112   * The .mo files must be named based on the locale exactly.
1113   *
1114   * @since 2.9.0
1115   *
1116   * @param string       $domain Text domain. Unique identifier for retrieving translated strings.
1117   * @param string|false $path   Optional. Path to the directory containing the .mo file.
1118   *                             Default false.
1119   * @return bool True when the theme textdomain is successfully loaded, false otherwise.
1120   */
1121  function load_child_theme_textdomain( $domain, $path = false ) {
1122      if ( ! $path ) {
1123          $path = get_stylesheet_directory();
1124      }
1125      return load_theme_textdomain( $domain, $path );
1126  }
1127  
1128  /**
1129   * Loads the script translated strings.
1130   *
1131   * @since 5.0.0
1132   * @since 5.0.2 Uses load_script_translations() to load translation data.
1133   * @since 5.1.0 The `$domain` parameter was made optional.
1134   *
1135   * @see WP_Scripts::set_translations()
1136   *
1137   * @param string $handle Name of the script to register a translation domain to.
1138   * @param string $domain Optional. Text domain. Default 'default'.
1139   * @param string $path   Optional. The full file path to the directory containing translation files.
1140   * @return string|false The translated strings in JSON encoding on success,
1141   *                      false if the script textdomain could not be loaded.
1142   */
1143  function load_script_textdomain( $handle, $domain = 'default', $path = '' ) {
1144      $wp_scripts = wp_scripts();
1145  
1146      if ( ! isset( $wp_scripts->registered[ $handle ] ) ) {
1147          return false;
1148      }
1149  
1150      $path   = untrailingslashit( $path );
1151      $locale = determine_locale();
1152  
1153      // If a path was given and the handle file exists simply return it.
1154      $file_base       = 'default' === $domain ? $locale : $domain . '-' . $locale;
1155      $handle_filename = $file_base . '-' . $handle . '.json';
1156  
1157      if ( $path ) {
1158          $translations = load_script_translations( $path . '/' . $handle_filename, $handle, $domain );
1159  
1160          if ( $translations ) {
1161              return $translations;
1162          }
1163      }
1164  
1165      $src = $wp_scripts->registered[ $handle ]->src;
1166  
1167      if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $wp_scripts->content_url && str_starts_with( $src, $wp_scripts->content_url ) ) ) {
1168          $src = $wp_scripts->base_url . $src;
1169      }
1170  
1171      $relative       = false;
1172      $languages_path = WP_LANG_DIR;
1173  
1174      $src_url     = wp_parse_url( $src );
1175      $content_url = wp_parse_url( content_url() );
1176      $plugins_url = wp_parse_url( plugins_url() );
1177      $site_url    = wp_parse_url( site_url() );
1178      $theme_root  = get_theme_root();
1179  
1180      // If the host is the same or it's a relative URL.
1181      if (
1182          ( ! isset( $content_url['path'] ) || str_starts_with( $src_url['path'], $content_url['path'] ) ) &&
1183          ( ! isset( $src_url['host'] ) || ! isset( $content_url['host'] ) || $src_url['host'] === $content_url['host'] )
1184      ) {
1185          // Make the src relative the specific plugin or theme.
1186          if ( isset( $content_url['path'] ) ) {
1187              $relative = substr( $src_url['path'], strlen( $content_url['path'] ) );
1188          } else {
1189              $relative = $src_url['path'];
1190          }
1191          $relative = trim( $relative, '/' );
1192          $relative = explode( '/', $relative );
1193  
1194          /*
1195           * Ensure correct languages path when using a custom `WP_PLUGIN_DIR` / `WP_PLUGIN_URL` configuration,
1196           * a custom theme root, and/or using Multisite with subdirectories.
1197           * See https://core.trac.wordpress.org/ticket/60891 and https://core.trac.wordpress.org/ticket/62016.
1198           */
1199  
1200          $theme_dir = array_slice( explode( '/', $theme_root ), -1 );
1201          $dirname   = $theme_dir[0] === $relative[0] ? 'themes' : 'plugins';
1202  
1203          $languages_path = WP_LANG_DIR . '/' . $dirname;
1204  
1205          $relative = array_slice( $relative, 2 ); // Remove plugins/<plugin name> or themes/<theme name>.
1206          $relative = implode( '/', $relative );
1207      } elseif (
1208          ( ! isset( $plugins_url['path'] ) || str_starts_with( $src_url['path'], $plugins_url['path'] ) ) &&
1209          ( ! isset( $src_url['host'] ) || ! isset( $plugins_url['host'] ) || $src_url['host'] === $plugins_url['host'] )
1210      ) {
1211          // Make the src relative the specific plugin.
1212          if ( isset( $plugins_url['path'] ) ) {
1213              $relative = substr( $src_url['path'], strlen( $plugins_url['path'] ) );
1214          } else {
1215              $relative = $src_url['path'];
1216          }
1217          $relative = trim( $relative, '/' );
1218          $relative = explode( '/', $relative );
1219  
1220          $languages_path = WP_LANG_DIR . '/plugins';
1221  
1222          $relative = array_slice( $relative, 1 ); // Remove <plugin name>.
1223          $relative = implode( '/', $relative );
1224      } elseif ( ! isset( $src_url['host'] ) || ! isset( $site_url['host'] ) || $src_url['host'] === $site_url['host'] ) {
1225          if ( ! isset( $site_url['path'] ) ) {
1226              $relative = trim( $src_url['path'], '/' );
1227          } elseif ( str_starts_with( $src_url['path'], trailingslashit( $site_url['path'] ) ) ) {
1228              // Make the src relative to the WP root.
1229              $relative = substr( $src_url['path'], strlen( $site_url['path'] ) );
1230              $relative = trim( $relative, '/' );
1231          }
1232      }
1233  
1234      /**
1235       * Filters the relative path of scripts used for finding translation files.
1236       *
1237       * @since 5.0.2
1238       *
1239       * @param string|false $relative The relative path of the script. False if it could not be determined.
1240       * @param string       $src      The full source URL of the script.
1241       */
1242      $relative = apply_filters( 'load_script_textdomain_relative_path', $relative, $src );
1243  
1244      // If the source is not from WP.
1245      if ( false === $relative ) {
1246          return load_script_translations( false, $handle, $domain );
1247      }
1248  
1249      // Translations are always based on the unminified filename.
1250      if ( str_ends_with( $relative, '.min.js' ) ) {
1251          $relative = substr( $relative, 0, -7 ) . '.js';
1252      }
1253  
1254      $md5_filename = $file_base . '-' . md5( $relative ) . '.json';
1255  
1256      if ( $path ) {
1257          $translations = load_script_translations( $path . '/' . $md5_filename, $handle, $domain );
1258  
1259          if ( $translations ) {
1260              return $translations;
1261          }
1262      }
1263  
1264      $translations = load_script_translations( $languages_path . '/' . $md5_filename, $handle, $domain );
1265  
1266      if ( $translations ) {
1267          return $translations;
1268      }
1269  
1270      return load_script_translations( false, $handle, $domain );
1271  }
1272  
1273  /**
1274   * Loads the translation data for the given script handle and text domain.
1275   *
1276   * @since 5.0.2
1277   *
1278   * @param string|false $file   Path to the translation file to load. False if there isn't one.
1279   * @param string       $handle Name of the script to register a translation domain to.
1280   * @param string       $domain The text domain.
1281   * @return string|false The JSON-encoded translated strings for the given script handle and text domain.
1282   *                      False if there are none.
1283   */
1284  function load_script_translations( $file, $handle, $domain ) {
1285      /**
1286       * Pre-filters script translations for the given file, script handle and text domain.
1287       *
1288       * Returning a non-null value allows to override the default logic, effectively short-circuiting the function.
1289       *
1290       * @since 5.0.2
1291       *
1292       * @param string|false|null $translations JSON-encoded translation data. Default null.
1293       * @param string|false      $file         Path to the translation file to load. False if there isn't one.
1294       * @param string            $handle       Name of the script to register a translation domain to.
1295       * @param string            $domain       The text domain.
1296       */
1297      $translations = apply_filters( 'pre_load_script_translations', null, $file, $handle, $domain );
1298  
1299      if ( null !== $translations ) {
1300          return $translations;
1301      }
1302  
1303      /**
1304       * Filters the file path for loading script translations for the given script handle and text domain.
1305       *
1306       * @since 5.0.2
1307       *
1308       * @param string|false $file   Path to the translation file to load. False if there isn't one.
1309       * @param string       $handle Name of the script to register a translation domain to.
1310       * @param string       $domain The text domain.
1311       */
1312      $file = apply_filters( 'load_script_translation_file', $file, $handle, $domain );
1313  
1314      if ( ! $file || ! is_readable( $file ) ) {
1315          return false;
1316      }
1317  
1318      $translations = file_get_contents( $file );
1319  
1320      /**
1321       * Filters script translations for the given file, script handle and text domain.
1322       *
1323       * @since 5.0.2
1324       *
1325       * @param string $translations JSON-encoded translation data.
1326       * @param string $file         Path to the translation file that was loaded.
1327       * @param string $handle       Name of the script to register a translation domain to.
1328       * @param string $domain       The text domain.
1329       */
1330      return apply_filters( 'load_script_translations', $translations, $file, $handle, $domain );
1331  }
1332  
1333  /**
1334   * Loads plugin and theme text domains just-in-time.
1335   *
1336   * When a textdomain is encountered for the first time, we try to load
1337   * the translation file from `wp-content/languages`, removing the need
1338   * to call load_plugin_textdomain() or load_theme_textdomain().
1339   *
1340   * @since 4.6.0
1341   * @access private
1342   *
1343   * @global MO[]                   $l10n_unloaded          An array of all text domains that have been unloaded again.
1344   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
1345   *
1346   * @param string $domain Text domain. Unique identifier for retrieving translated strings.
1347   * @return bool True when the textdomain is successfully loaded, false otherwise.
1348   */
1349  function _load_textdomain_just_in_time( $domain ) {
1350      /** @var WP_Textdomain_Registry $wp_textdomain_registry */
1351      global $l10n_unloaded, $wp_textdomain_registry;
1352  
1353      $l10n_unloaded = (array) $l10n_unloaded;
1354  
1355      // Short-circuit if domain is 'default' which is reserved for core.
1356      if ( 'default' === $domain || isset( $l10n_unloaded[ $domain ] ) ) {
1357          return false;
1358      }
1359  
1360      if ( ! $wp_textdomain_registry->has( $domain ) ) {
1361          return false;
1362      }
1363  
1364      $locale = determine_locale();
1365      $path   = $wp_textdomain_registry->get( $domain, $locale );
1366      if ( ! $path ) {
1367          return false;
1368      }
1369  
1370      if ( ! doing_action( 'after_setup_theme' ) && ! did_action( 'after_setup_theme' ) ) {
1371          _doing_it_wrong(
1372              __FUNCTION__,
1373              sprintf(
1374                  /* translators: 1: The text domain. 2: 'init'. */
1375                  __( 'Translation loading for the %1$s domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the %2$s action or later.' ),
1376                  '<code>' . $domain . '</code>',
1377                  '<code>init</code>'
1378              ),
1379              '6.7.0'
1380          );
1381      }
1382  
1383      // Themes with their language directory outside of WP_LANG_DIR have a different file name.
1384      $template_directory   = trailingslashit( get_template_directory() );
1385      $stylesheet_directory = trailingslashit( get_stylesheet_directory() );
1386      if ( str_starts_with( $path, $template_directory ) || str_starts_with( $path, $stylesheet_directory ) ) {
1387          $mofile = "{$path}{$locale}.mo";
1388      } else {
1389          $mofile = "{$path}{$domain}-{$locale}.mo";
1390      }
1391  
1392      return load_textdomain( $domain, $mofile, $locale );
1393  }
1394  
1395  /**
1396   * Returns the Translations instance for a text domain.
1397   *
1398   * If there isn't one, returns empty Translations instance.
1399   *
1400   * @since 2.8.0
1401   *
1402   * @global MO[] $l10n An array of all currently loaded text domains.
1403   *
1404   * @param string $domain Text domain. Unique identifier for retrieving translated strings.
1405   * @return Translations|NOOP_Translations A Translations instance.
1406   */
1407  function get_translations_for_domain( $domain ) {
1408      global $l10n;
1409      if ( isset( $l10n[ $domain ] ) || ( _load_textdomain_just_in_time( $domain ) && isset( $l10n[ $domain ] ) ) ) {
1410          return $l10n[ $domain ];
1411      }
1412  
1413      static $noop_translations = null;
1414      if ( null === $noop_translations ) {
1415          $noop_translations = new NOOP_Translations();
1416      }
1417  
1418      $l10n[ $domain ] = &$noop_translations;
1419  
1420      return $noop_translations;
1421  }
1422  
1423  /**
1424   * Determines whether there are translations for the text domain.
1425   *
1426   * @since 3.0.0
1427   *
1428   * @global MO[] $l10n An array of all currently loaded text domains.
1429   *
1430   * @param string $domain Text domain. Unique identifier for retrieving translated strings.
1431   * @return bool Whether there are translations.
1432   */
1433  function is_textdomain_loaded( $domain ) {
1434      global $l10n;
1435      return isset( $l10n[ $domain ] ) && ! $l10n[ $domain ] instanceof NOOP_Translations;
1436  }
1437  
1438  /**
1439   * Translates role name.
1440   *
1441   * Since the role names are in the database and not in the source there
1442   * are dummy gettext calls to get them into the POT file and this function
1443   * properly translates them back.
1444   *
1445   * The before_last_bar() call is needed, because older installations keep the roles
1446   * using the old context format: 'Role name|User role' and just skipping the
1447   * content after the last bar is easier than fixing them in the DB. New installations
1448   * won't suffer from that problem.
1449   *
1450   * @since 2.8.0
1451   * @since 5.2.0 Added the `$domain` parameter.
1452   *
1453   * @param string $name   The role name.
1454   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
1455   *                       Default 'default'.
1456   * @return string Translated role name on success, original name on failure.
1457   */
1458  function translate_user_role( $name, $domain = 'default' ) {
1459      return translate_with_gettext_context( before_last_bar( $name ), 'User role', $domain );
1460  }
1461  
1462  /**
1463   * Gets all available languages based on the presence of *.mo and *.l10n.php files in a given directory.
1464   *
1465   * The default directory is WP_LANG_DIR.
1466   *
1467   * @since 3.0.0
1468   * @since 4.7.0 The results are now filterable with the {@see 'get_available_languages'} filter.
1469   * @since 6.5.0 The initial file list is now cached and also takes into account *.l10n.php files.
1470   *
1471   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
1472   *
1473   * @param string $dir A directory to search for language files.
1474   *                    Default WP_LANG_DIR.
1475   * @return string[] An array of language codes or an empty array if no languages are present.
1476   *                  Language codes are formed by stripping the file extension from the language file names.
1477   */
1478  function get_available_languages( $dir = null ) {
1479      global $wp_textdomain_registry;
1480  
1481      $languages = array();
1482  
1483      $path       = is_null( $dir ) ? WP_LANG_DIR : $dir;
1484      $lang_files = $wp_textdomain_registry->get_language_files_from_path( $path );
1485  
1486      if ( $lang_files ) {
1487          foreach ( $lang_files as $lang_file ) {
1488              $lang_file = basename( $lang_file, '.mo' );
1489              $lang_file = basename( $lang_file, '.l10n.php' );
1490  
1491              if ( ! str_starts_with( $lang_file, 'continents-cities' ) && ! str_starts_with( $lang_file, 'ms-' ) &&
1492                  ! str_starts_with( $lang_file, 'admin-' ) ) {
1493                  $languages[] = $lang_file;
1494              }
1495          }
1496      }
1497  
1498      /**
1499       * Filters the list of available language codes.
1500       *
1501       * @since 4.7.0
1502       *
1503       * @param string[] $languages An array of available language codes.
1504       * @param string   $dir       The directory where the language files were found.
1505       */
1506      return apply_filters( 'get_available_languages', array_unique( $languages ), $dir );
1507  }
1508  
1509  /**
1510   * Gets installed translations.
1511   *
1512   * Looks in the wp-content/languages directory for translations of
1513   * plugins or themes.
1514   *
1515   * @since 3.7.0
1516   *
1517   * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
1518   *
1519   * @param string $type What to search for. Accepts 'plugins', 'themes', 'core'.
1520   * @return array Array of language data.
1521   */
1522  function wp_get_installed_translations( $type ) {
1523      global $wp_textdomain_registry;
1524  
1525      if ( 'themes' !== $type && 'plugins' !== $type && 'core' !== $type ) {
1526          return array();
1527      }
1528  
1529      $dir = 'core' === $type ? WP_LANG_DIR : WP_LANG_DIR . "/$type";
1530  
1531      if ( ! is_dir( $dir ) ) {
1532          return array();
1533      }
1534  
1535      $files = $wp_textdomain_registry->get_language_files_from_path( $dir );
1536      if ( ! $files ) {
1537          return array();
1538      }
1539  
1540      $language_data = array();
1541  
1542      foreach ( $files as $file ) {
1543          if ( ! preg_match( '/(?:(.+)-)?([a-z]{2,3}(?:_[A-Z]{2})?(?:_[a-z0-9]+)?)\.(?:mo|l10n\.php)/', basename( $file ), $match ) ) {
1544              continue;
1545          }
1546  
1547          list( , $textdomain, $language ) = $match;
1548          if ( '' === $textdomain ) {
1549              $textdomain = 'default';
1550          }
1551  
1552          if ( str_ends_with( $file, '.mo' ) ) {
1553              $pofile = substr_replace( $file, '.po', - strlen( '.mo' ) );
1554  
1555              if ( ! file_exists( $pofile ) ) {
1556                  continue;
1557              }
1558  
1559              $language_data[ $textdomain ][ $language ] = wp_get_pomo_file_data( $pofile );
1560          } else {
1561              $pofile = substr_replace( $file, '.po', - strlen( '.l10n.php' ) );
1562  
1563              // If both a PO and a PHP file exist, prefer the PO file.
1564              if ( file_exists( $pofile ) ) {
1565                  continue;
1566              }
1567  
1568              $language_data[ $textdomain ][ $language ] = wp_get_l10n_php_file_data( $file );
1569          }
1570      }
1571      return $language_data;
1572  }
1573  
1574  /**
1575   * Extracts headers from a PO file.
1576   *
1577   * @since 3.7.0
1578   *
1579   * @param string $po_file Path to PO file.
1580   * @return string[] Array of PO file header values keyed by header name.
1581   */
1582  function wp_get_pomo_file_data( $po_file ) {
1583      $headers = get_file_data(
1584          $po_file,
1585          array(
1586              'POT-Creation-Date'  => '"POT-Creation-Date',
1587              'PO-Revision-Date'   => '"PO-Revision-Date',
1588              'Project-Id-Version' => '"Project-Id-Version',
1589              'X-Generator'        => '"X-Generator',
1590          )
1591      );
1592      foreach ( $headers as $header => $value ) {
1593          // Remove possible contextual '\n' and closing double quote.
1594          $headers[ $header ] = preg_replace( '~(\\\n)?"$~', '', $value );
1595      }
1596      return $headers;
1597  }
1598  
1599  /**
1600   * Extracts headers from a PHP translation file.
1601   *
1602   * @since 6.6.0
1603   *
1604   * @param string $php_file Path to a `.l10n.php` file.
1605   * @return string[] Array of file header values keyed by header name.
1606   */
1607  function wp_get_l10n_php_file_data( $php_file ) {
1608      $data = (array) include $php_file;
1609  
1610      unset( $data['messages'] );
1611      $headers = array(
1612          'POT-Creation-Date'  => 'pot-creation-date',
1613          'PO-Revision-Date'   => 'po-revision-date',
1614          'Project-Id-Version' => 'project-id-version',
1615          'X-Generator'        => 'x-generator',
1616      );
1617  
1618      $result = array(
1619          'POT-Creation-Date'  => '',
1620          'PO-Revision-Date'   => '',
1621          'Project-Id-Version' => '',
1622          'X-Generator'        => '',
1623      );
1624  
1625      foreach ( $headers as $po_header => $php_header ) {
1626          if ( isset( $data[ $php_header ] ) ) {
1627              $result[ $po_header ] = $data[ $php_header ];
1628          }
1629      }
1630  
1631      return $result;
1632  }
1633  
1634  /**
1635   * Displays or returns a Language selector.
1636   *
1637   * @since 4.0.0
1638   * @since 4.3.0 Introduced the `echo` argument.
1639   * @since 4.7.0 Introduced the `show_option_site_default` argument.
1640   * @since 5.1.0 Introduced the `show_option_en_us` argument.
1641   * @since 5.9.0 Introduced the `explicit_option_en_us` argument.
1642   *
1643   * @see get_available_languages()
1644   * @see wp_get_available_translations()
1645   *
1646   * @param string|array $args {
1647   *     Optional. Array or string of arguments for outputting the language selector.
1648   *
1649   *     @type string   $id                           ID attribute of the select element. Default 'locale'.
1650   *     @type string   $name                         Name attribute of the select element. Default 'locale'.
1651   *     @type string[] $languages                    List of installed languages, contain only the locales.
1652   *                                                  Default empty array.
1653   *     @type array    $translations                 List of available translations. Default result of
1654   *                                                  wp_get_available_translations().
1655   *     @type string   $selected                     Language which should be selected. Default empty.
1656   *     @type bool|int $echo                         Whether to echo the generated markup. Accepts 0, 1, or their
1657   *                                                  boolean equivalents. Default 1.
1658   *     @type bool     $show_available_translations  Whether to show available translations. Default true.
1659   *     @type bool     $show_option_site_default     Whether to show an option to fall back to the site's locale. Default false.
1660   *     @type bool     $show_option_en_us            Whether to show an option for English (United States). Default true.
1661   *     @type bool     $explicit_option_en_us        Whether the English (United States) option uses an explicit value of en_US
1662   *                                                  instead of an empty value. Default false.
1663   * }
1664   * @return string HTML dropdown list of languages.
1665   */
1666  function wp_dropdown_languages( $args = array() ) {
1667  
1668      $parsed_args = wp_parse_args(
1669          $args,
1670          array(
1671              'id'                          => 'locale',
1672              'name'                        => 'locale',
1673              'languages'                   => array(),
1674              'translations'                => array(),
1675              'selected'                    => '',
1676              'echo'                        => 1,
1677              'show_available_translations' => true,
1678              'show_option_site_default'    => false,
1679              'show_option_en_us'           => true,
1680              'explicit_option_en_us'       => false,
1681          )
1682      );
1683  
1684      // Bail if no ID or no name.
1685      if ( ! $parsed_args['id'] || ! $parsed_args['name'] ) {
1686          return;
1687      }
1688  
1689      // English (United States) uses an empty string for the value attribute.
1690      if ( 'en_US' === $parsed_args['selected'] && ! $parsed_args['explicit_option_en_us'] ) {
1691          $parsed_args['selected'] = '';
1692      }
1693  
1694      $translations = $parsed_args['translations'];
1695      if ( empty( $translations ) ) {
1696          require_once  ABSPATH . 'wp-admin/includes/translation-install.php';
1697          $translations = wp_get_available_translations();
1698      }
1699  
1700      /*
1701       * $parsed_args['languages'] should only contain the locales. Find the locale in
1702       * $translations to get the native name. Fall back to locale.
1703       */
1704      $languages = array();
1705      foreach ( $parsed_args['languages'] as $locale ) {
1706          if ( isset( $translations[ $locale ] ) ) {
1707              $translation = $translations[ $locale ];
1708              $languages[] = array(
1709                  'language'    => $translation['language'],
1710                  'native_name' => $translation['native_name'],
1711                  'lang'        => current( $translation['iso'] ),
1712              );
1713  
1714              // Remove installed language from available translations.
1715              unset( $translations[ $locale ] );
1716          } else {
1717              $languages[] = array(
1718                  'language'    => $locale,
1719                  'native_name' => $locale,
1720                  'lang'        => '',
1721              );
1722          }
1723      }
1724  
1725      $translations_available = ( ! empty( $translations ) && $parsed_args['show_available_translations'] );
1726  
1727      // Holds the HTML markup.
1728      $structure = array();
1729  
1730      // List installed languages.
1731      if ( $translations_available ) {
1732          $structure[] = '<optgroup label="' . esc_attr_x( 'Installed', 'translations' ) . '">';
1733      }
1734  
1735      // Site default.
1736      if ( $parsed_args['show_option_site_default'] ) {
1737          $structure[] = sprintf(
1738              '<option value="site-default" data-installed="1"%s>%s</option>',
1739              selected( 'site-default', $parsed_args['selected'], false ),
1740              _x( 'Site Default', 'default site language' )
1741          );
1742      }
1743  
1744      if ( $parsed_args['show_option_en_us'] ) {
1745          $value       = ( $parsed_args['explicit_option_en_us'] ) ? 'en_US' : '';
1746          $structure[] = sprintf(
1747              '<option value="%s" lang="en" data-installed="1"%s>English (United States)</option>',
1748              esc_attr( $value ),
1749              selected( '', $parsed_args['selected'], false )
1750          );
1751      }
1752  
1753      // List installed languages.
1754      foreach ( $languages as $language ) {
1755          $structure[] = sprintf(
1756              '<option value="%s" lang="%s"%s data-installed="1">%s</option>',
1757              esc_attr( $language['language'] ),
1758              esc_attr( $language['lang'] ),
1759              selected( $language['language'], $parsed_args['selected'], false ),
1760              esc_html( $language['native_name'] )
1761          );
1762      }
1763      if ( $translations_available ) {
1764          $structure[] = '</optgroup>';
1765      }
1766  
1767      // List available translations.
1768      if ( $translations_available ) {
1769          $structure[] = '<optgroup label="' . esc_attr_x( 'Available', 'translations' ) . '">';
1770          foreach ( $translations as $translation ) {
1771              $structure[] = sprintf(
1772                  '<option value="%s" lang="%s"%s>%s</option>',
1773                  esc_attr( $translation['language'] ),
1774                  esc_attr( current( $translation['iso'] ) ),
1775                  selected( $translation['language'], $parsed_args['selected'], false ),
1776                  esc_html( $translation['native_name'] )
1777              );
1778          }
1779          $structure[] = '</optgroup>';
1780      }
1781  
1782      // Combine the output string.
1783      $output  = sprintf( '<select name="%s" id="%s">', esc_attr( $parsed_args['name'] ), esc_attr( $parsed_args['id'] ) );
1784      $output .= implode( "\n", $structure );
1785      $output .= '</select>';
1786  
1787      if ( $parsed_args['echo'] ) {
1788          echo $output;
1789      }
1790  
1791      return $output;
1792  }
1793  
1794  /**
1795   * Determines whether the current locale is right-to-left (RTL).
1796   *
1797   * For more information on this and similar theme functions, check out
1798   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
1799   * Conditional Tags} article in the Theme Developer Handbook.
1800   *
1801   * @since 3.0.0
1802   *
1803   * @global WP_Locale $wp_locale WordPress date and time locale object.
1804   *
1805   * @return bool Whether locale is RTL.
1806   */
1807  function is_rtl() {
1808      global $wp_locale;
1809      if ( ! ( $wp_locale instanceof WP_Locale ) ) {
1810          return false;
1811      }
1812      return $wp_locale->is_rtl();
1813  }
1814  
1815  /**
1816   * Switches the translations according to the given locale.
1817   *
1818   * @since 4.7.0
1819   *
1820   * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
1821   *
1822   * @param string $locale The locale.
1823   * @return bool True on success, false on failure.
1824   */
1825  function switch_to_locale( $locale ) {
1826      /* @var WP_Locale_Switcher $wp_locale_switcher */
1827      global $wp_locale_switcher;
1828  
1829      if ( ! $wp_locale_switcher ) {
1830          return false;
1831      }
1832  
1833      return $wp_locale_switcher->switch_to_locale( $locale );
1834  }
1835  
1836  /**
1837   * Switches the translations according to the given user's locale.
1838   *
1839   * @since 6.2.0
1840   *
1841   * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
1842   *
1843   * @param int $user_id User ID.
1844   * @return bool True on success, false on failure.
1845   */
1846  function switch_to_user_locale( $user_id ) {
1847      /* @var WP_Locale_Switcher $wp_locale_switcher */
1848      global $wp_locale_switcher;
1849  
1850      if ( ! $wp_locale_switcher ) {
1851          return false;
1852      }
1853  
1854      return $wp_locale_switcher->switch_to_user_locale( $user_id );
1855  }
1856  
1857  /**
1858   * Restores the translations according to the previous locale.
1859   *
1860   * @since 4.7.0
1861   *
1862   * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
1863   *
1864   * @return string|false Locale on success, false on error.
1865   */
1866  function restore_previous_locale() {
1867      /* @var WP_Locale_Switcher $wp_locale_switcher */
1868      global $wp_locale_switcher;
1869  
1870      if ( ! $wp_locale_switcher ) {
1871          return false;
1872      }
1873  
1874      return $wp_locale_switcher->restore_previous_locale();
1875  }
1876  
1877  /**
1878   * Restores the translations according to the original locale.
1879   *
1880   * @since 4.7.0
1881   *
1882   * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
1883   *
1884   * @return string|false Locale on success, false on error.
1885   */
1886  function restore_current_locale() {
1887      /* @var WP_Locale_Switcher $wp_locale_switcher */
1888      global $wp_locale_switcher;
1889  
1890      if ( ! $wp_locale_switcher ) {
1891          return false;
1892      }
1893  
1894      return $wp_locale_switcher->restore_current_locale();
1895  }
1896  
1897  /**
1898   * Determines whether switch_to_locale() is in effect.
1899   *
1900   * @since 4.7.0
1901   *
1902   * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
1903   *
1904   * @return bool True if the locale has been switched, false otherwise.
1905   */
1906  function is_locale_switched() {
1907      /* @var WP_Locale_Switcher $wp_locale_switcher */
1908      global $wp_locale_switcher;
1909  
1910      return $wp_locale_switcher->is_switched();
1911  }
1912  
1913  /**
1914   * Translates the provided settings value using its i18n schema.
1915   *
1916   * @since 5.9.0
1917   * @access private
1918   *
1919   * @param string|string[]|array[]|object $i18n_schema I18n schema for the setting.
1920   * @param string|string[]|array[]        $settings    Value for the settings.
1921   * @param string                         $textdomain  Textdomain to use with translations.
1922   *
1923   * @return string|string[]|array[] Translated settings.
1924   */
1925  function translate_settings_using_i18n_schema( $i18n_schema, $settings, $textdomain ) {
1926      if ( empty( $i18n_schema ) || empty( $settings ) || empty( $textdomain ) ) {
1927          return $settings;
1928      }
1929  
1930      if ( is_string( $i18n_schema ) && is_string( $settings ) ) {
1931          return translate_with_gettext_context( $settings, $i18n_schema, $textdomain );
1932      }
1933      if ( is_array( $i18n_schema ) && is_array( $settings ) ) {
1934          $translated_settings = array();
1935          foreach ( $settings as $value ) {
1936              $translated_settings[] = translate_settings_using_i18n_schema( $i18n_schema[0], $value, $textdomain );
1937          }
1938          return $translated_settings;
1939      }
1940      if ( is_object( $i18n_schema ) && is_array( $settings ) ) {
1941          $group_key           = '*';
1942          $translated_settings = array();
1943          foreach ( $settings as $key => $value ) {
1944              if ( isset( $i18n_schema->$key ) ) {
1945                  $translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$key, $value, $textdomain );
1946              } elseif ( isset( $i18n_schema->$group_key ) ) {
1947                  $translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$group_key, $value, $textdomain );
1948              } else {
1949                  $translated_settings[ $key ] = $value;
1950              }
1951          }
1952          return $translated_settings;
1953      }
1954      return $settings;
1955  }
1956  
1957  /**
1958   * Retrieves the list item separator based on the locale.
1959   *
1960   * @since 6.0.0
1961   *
1962   * @global WP_Locale $wp_locale WordPress date and time locale object.
1963   *
1964   * @return string Locale-specific list item separator.
1965   */
1966  function wp_get_list_item_separator() {
1967      global $wp_locale;
1968  
1969      if ( ! ( $wp_locale instanceof WP_Locale ) ) {
1970          // Default value of WP_Locale::get_list_item_separator().
1971          /* translators: Used between list items, there is a space after the comma. */
1972          return __( ', ' );
1973      }
1974  
1975      return $wp_locale->get_list_item_separator();
1976  }
1977  
1978  /**
1979   * Retrieves the word count type based on the locale.
1980   *
1981   * @since 6.2.0
1982   *
1983   * @global WP_Locale $wp_locale WordPress date and time locale object.
1984   *
1985   * @return string Locale-specific word count type. Possible values are `characters_excluding_spaces`,
1986   *                `characters_including_spaces`, or `words`. Defaults to `words`.
1987   */
1988  function wp_get_word_count_type() {
1989      global $wp_locale;
1990  
1991      if ( ! ( $wp_locale instanceof WP_Locale ) ) {
1992          // Default value of WP_Locale::get_word_count_type().
1993          return 'words';
1994      }
1995  
1996      return $wp_locale->get_word_count_type();
1997  }
1998  
1999  /**
2000   * Returns a boolean to indicate whether a translation exists for a given string with optional text domain and locale.
2001   *
2002   * @since 6.7.0
2003   *
2004   * @param string  $singular   Singular translation to check.
2005   * @param string  $textdomain Optional. Text domain. Default 'default'.
2006   * @param ?string $locale     Optional. Locale. Default current locale.
2007   * @return bool  True if the translation exists, false otherwise.
2008   */
2009  function has_translation( string $singular, string $textdomain = 'default', ?string $locale = null ): bool {
2010      return WP_Translation_Controller::get_instance()->has_translation( $singular, $textdomain, $locale );
2011  }


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