first commit

system/library/language.php

@@ -0,0 +1,170 @@
+<?php
+/**
+ * @package		OpenCart
+ * @author		Daniel Kerr
+ * @copyright	Copyright (c) 2005 - 2022, OpenCart, Ltd. (https://www.opencart.com/)
+ * @license		https://opensource.org/licenses/GPL-3.0
+ * @link		https://www.opencart.com
+*/
+namespace Opencart\System\Library;
+/**
+ * Class Language
+ */
+class Language {
+	/**
+	 * @var string
+	 */
+	protected string $code;
+	/**
+	 * @var string
+	 */
+	protected string $directory;
+	/**
+	 * @var array
+	 */
+	protected array $path = [];
+	/**
+	 * @var array
+	 */
+	protected array $data = [];
+	/**
+	 * @var array
+	 */
+	protected array $cache = [];
+
+	/**
+	 * Constructor
+	 *
+	 * @param    string  $code
+	 *
+	 */
+	public function __construct(string $code) {
+		$this->code = $code;
+	}
+
+	/**
+	 * addPath
+	 *
+	 * @param    string  $namespace
+	 * @param    string  $directory
+	 *
+	 * @return   void
+	 */
+	public function addPath(string $namespace, string $directory = ''): void {
+		if (!$directory) {
+			$this->directory = $namespace;
+		} else {
+			$this->path[$namespace] = $directory;
+		}
+	}
+
+	/**
+     * Get language text string
+     *
+     * @param	string	$key
+	 * 
+	 * @return	string
+     */
+	public function get(string $key) {
+		return isset($this->data[$key]) ? $this->data[$key] : $key;
+	}
+
+	/**
+     *  Set language text string
+     *
+     * @param	string	$key
+	 * @param	string	$value
+     */	
+	public function set(string $key, string $value) {
+		$this->data[$key] = $value;
+	}
+	
+	/**
+     * All
+     *
+	 * @return	array
+     */
+	public function all(string $prefix = ''): array {
+		if (!$prefix) {
+			return $this->data;
+		}
+
+		$_ = [];
+
+		$length = strlen($prefix);
+
+		foreach ($this->data as $key => $value) {
+			if (substr($key, 0, $length) == $prefix) {
+				$_[substr($key, $length + 1)] = $value;
+			}
+		}
+
+		return $_;
+	}
+
+	/**
+	 * Clear
+	 *
+	 * @return	void
+	 */
+	public function clear(): void {
+		$this->data = [];
+	}
+
+	/**
+     * Load
+     *
+     * @param	string	$filename
+	 * @param	string	$code 		Language code
+	 * 
+	 * @return	array
+     */
+	public function load(string $filename, string $prefix = '', string $code = ''): array {
+		if (!$code) {
+			$code = $this->code;
+		}
+
+		if (!isset($this->cache[$code][$filename])) {
+			$_ = [];
+
+			// Load selected language file to overwrite the default language keys
+			$file = $this->directory . $code . '/' . $filename . '.php';
+
+			$namespace = '';
+
+			$parts = explode('/', $filename);
+
+			foreach ($parts as $part) {
+				if (!$namespace) {
+					$namespace .= $part;
+				} else {
+					$namespace .= '/' . $part;
+				}
+
+				if (isset($this->path[$namespace])) {
+					$file = $this->path[$namespace] . $code . substr($filename, strlen($namespace)) . '.php';
+				}
+			}
+
+			if (is_file($file)) {
+				require($file);
+			}
+
+			$this->cache[$code][$filename] = $_;
+		} else {
+			$_ = $this->cache[$code][$filename];
+		}
+
+		if ($prefix) {
+			foreach ($_ as $key => $value) {
+				$_[$prefix . '_' . $key] = $value;
+
+				unset($_[$key]);
+			}
+		}
+
+		$this->data = array_merge($this->data, $_);
+
+		return $this->data;
+	}
+}