晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。   林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。   见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝)   既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。   南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。 .
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Current File : /home/stando/www/wp-content/plugins/wordpress-seo-premium/admin/class-plugin-compatibility.php
<?php
/**
 * WPSEO plugin file.
 *
 * @package WPSEO\Plugin_Compatibility
 */

/**
 * Class WPSEO_Plugin_Compatibility.
 *
 * @codeCoverageIgnore
 * @deprecated 12.3
 */
class WPSEO_Plugin_Compatibility {

	/**
	 * Holds the current WPSEO version.
	 *
	 * @var string
	 */
	protected $current_wpseo_version;

	/**
	 * Holds the availability checker.
	 *
	 * @var WPSEO_Plugin_Availability
	 */
	protected $availability_checker;

	/**
	 * Holds the installed plugins.
	 *
	 * @var array
	 */
	protected $installed_plugins;

	/**
	 * WPSEO_Plugin_Compatibility constructor.
	 *
	 * @deprecated 12.3
	 * @codeCoverageIgnore
	 *
	 * @param string     $version              The version to check against.
	 * @param null|class $availability_checker The checker to use.
	 */
	public function __construct( $version, $availability_checker = null ) {
		_deprecated_function( __METHOD__, '12.3' );

		// We trim off the patch version, as this shouldn't break the comparison.
		$this->current_wpseo_version = $this->get_major_minor_version( $version );
		$this->availability_checker  = $this->retrieve_availability_checker( $availability_checker );
		$this->installed_plugins     = $this->availability_checker->get_installed_plugins();
	}

	/**
	 * Retrieves the availability checker.
	 *
	 * @deprecated 12.3
	 * @codeCoverageIgnore
	 *
	 * @param null|object $checker The checker to set.
	 *
	 * @return WPSEO_Plugin_Availability The checker to use.
	 */
	private function retrieve_availability_checker( $checker ) {
		_deprecated_function( __METHOD__, '12.3' );

		if ( is_null( $checker ) || ! is_object( $checker ) ) {
			$checker = new WPSEO_Plugin_Availability();
			$checker->register();
		}

		return $checker;
	}

	/**
	 * Wraps the availability checker's get_installed_plugins method.
	 *
	 * @deprecated 12.3
	 * @codeCoverageIgnore
	 *
	 * @return array Array containing all the installed plugins.
	 */
	public function get_installed_plugins() {
		_deprecated_function( __METHOD__, '12.3' );

		return $this->installed_plugins;
	}

	/**
	 * Creates a list of installed plugins and whether or not they are compatible.
	 *
	 * @deprecated 12.3
	 * @codeCoverageIgnore
	 *
	 * @return array Array containing the installed plugins and compatibility.
	 */
	public function get_installed_plugins_compatibility() {
		_deprecated_function( __METHOD__, '12.3' );

		foreach ( $this->installed_plugins as $key => $plugin ) {

			$this->installed_plugins[ $key ]['compatible'] = $this->is_compatible( $key );
		}

		return $this->installed_plugins;
	}

	/**
	 * Checks whether or not a plugin is compatible.
	 *
	 * @deprecated 12.3
	 * @codeCoverageIgnore
	 *
	 * @param string $plugin The plugin to look for and match.
	 *
	 * @return bool Whether or not the plugin is compatible.
	 */
	public function is_compatible( $plugin ) {
		_deprecated_function( __METHOD__, '12.3' );

		$plugin = $this->availability_checker->get_plugin( $plugin );

		// If we are not syncing versions, we are always compatible.
		if ( ! isset( $plugin['version_sync'] ) || $plugin['version_sync'] !== true ) {
			return true;
		}

		$plugin_version = $this->availability_checker->get_version( $plugin );
		return $this->get_major_minor_version( $plugin_version ) === $this->current_wpseo_version;
	}

	/**
	 * Gets the major/minor version of the plugin for easier comparing.
	 *
	 * @deprecated 12.3
	 * @codeCoverageIgnore
	 *
	 * @param string $version The version to trim.
	 *
	 * @return string The major/minor version of the plugin.
	 */
	protected function get_major_minor_version( $version ) {
		_deprecated_function( __METHOD__, '12.3' );

		return substr( $version, 0, 3 );
	}
}

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