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/js_composer/include/autoload/class-vc-vendor-presets.php
<?php
if ( ! defined( 'ABSPATH' ) ) {
	die( '-1' );
}

/**
 * Singleton to hold all vendor presets
 *
 * @since 4.8
 */
class Vc_Vendor_Preset {

	private static $instance;
	private static $presets = array();

	/**
	 * @return \Vc_Vendor_Preset
	 */
	public static function getInstance() {
		if ( ! self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	protected function __construct() {
	}

	/**
	 * Add vendor preset to collection
	 *
	 * @param string $title
	 * @param string $shortcode
	 * @param array $params
	 * @param bool $default
	 *
	 * @return bool
	 * @since 4.8
	 *
	 */
	public function add( $title, $shortcode, $params, $default = false ) {
		if ( ! $title || ! is_string( $title ) || ! $shortcode || ! is_string( $shortcode ) || ! $params || ! is_array( $params ) ) {
			return false;
		}

		$preset = array(
			'shortcode' => $shortcode,
			'default' => $default,
			'params' => $params,
			'title' => $title,
		);

		// @codingStandardsIgnoreLine
		$id = md5( serialize( $preset ) );

		self::$presets[ $id ] = $preset;

		return true;
	}

	/**
	 * Get specific vendor preset
	 *
	 * @param string $id
	 *
	 * @return mixed array|false
	 * @since 4.8
	 *
	 */
	public function get( $id ) {
		if ( isset( self::$presets[ $id ] ) ) {
			return self::$presets[ $id ];
		}

		return false;
	}

	/**
	 * Get all vendor presets for specific shortcode
	 *
	 * @param string $shortcode
	 *
	 * @return array
	 * @since 4.8
	 *
	 */
	public function getAll( $shortcode ) {
		$list = array();

		foreach ( self::$presets as $id => $preset ) {
			if ( $shortcode === $preset['shortcode'] ) {
				$list[ $id ] = $preset;
			}
		}

		return $list;
	}

	/**
	 * Get all default vendor presets
	 *
	 * Include only one default preset per shortcode
	 *
	 * @return array
	 * @since 4.8
	 *
	 */
	public function getDefaults() {
		$list = array();

		$added = array();

		foreach ( self::$presets as $id => $preset ) {
			if ( $preset['default'] && ! in_array( $preset['shortcode'], $added, true ) ) {
				$added[] = $preset['shortcode'];
				$list[ $id ] = $preset;
			}
		}

		return $list;
	}

	/**
	 * Get ID of default preset for specific shortcode
	 *
	 * If multiple presets are default, return first
	 *
	 * @param string $shortcode
	 *
	 * @return string|null
	 * @since 4.8
	 *
	 */
	public function getDefaultId( $shortcode ) {
		foreach ( self::$presets as $id => $preset ) {
			if ( $shortcode === $preset['shortcode'] && $preset['default'] ) {
				return $id;
			}
		}

		return null;
	}
}

haha - 2025