Version 4.0.13.1

admin/convertutf8/system/Text/Charset.php

@@ -0,0 +1,131 @@
+<?php
+/**
+ * @brief		Conversion module
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Tools
+ * @since		4 Sept 2013
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPSUtf8\Text;
+
+/**
+ * Conversion class
+ * Refactored from IPB 3.x
+ */
+abstract class Charset
+{
+	/**
+	 * @brief Array of error messages associated with the conversion
+	 */
+	public static $errors = array();
+	
+	/**
+	 * @brief Conversion method to use
+	 */
+	public static $method = NULL;
+	
+	/**
+	 * @brief Should characters be turned into numeric entities
+	 */
+	protected static $entities = false;
+	
+	/**
+	 * @brief Path for character sets
+	 */
+	protected static $charsetPath = '';
+	
+	/**
+	 * @brief Multiton Store
+	 */
+	protected static $multitons = array();
+	
+	/**
+	 * Constructor
+	 */
+	public static function i()
+	{
+		if ( self::$method === NULL )
+		{
+			/* Try and pick best available */
+			if ( FORCE_CONVERT_METHOD === NULL )
+			{
+				if ( function_exists( 'mb_convert_encoding' ) )
+				{
+					self::$method = 'mb';
+				}
+				else if ( function_exists( 'iconv' ) )
+				{
+					self::$method = 'iconv';
+				}
+				else if ( function_exists( 'recode_string' ) )
+				{
+					self::$method = 'recode';
+				}
+				else
+				{
+					self::$method = 'internal';
+				}
+			}
+			else
+			{
+				self::$method = FORCE_CONVERT_METHOD;
+			}
+		}
+		
+		self::$method = ucfirst( self::$method );
+		
+		if ( ! isset( static::$multitons[ self::$method ] ) )
+		{
+			$classname = "\\IPSUtf8\\Text\\Module\\" . self::$method;
+			static::$multitons[ self::$method ] = new $classname;
+		}
+		
+		return new static::$multitons[ self::$method ];
+	}
+	
+	/**
+	 * Checks a string to see if conversion is required
+	 *
+	 * @param	string		Text string
+	 * @param	string		Text string char set (original)
+	 * @param	string		Desired character set (destination)
+	 * @return	@e string
+	 */
+	public static function needsConverting( $string, $from, $to='UTF-8' )
+	{
+		$from = strtolower($from);
+		$to   = strtolower($to);
+		
+		/* Return bools, null, ints, etc. */
+		if ( ! is_string( $string ) )
+		{
+			return false;
+		}
+		
+		/* Return if latin only */
+		if ( preg_match( '/^([a-zA-Z0-9_\-\.:;\[\]\{\}\!\@\£\$\%\^\&\*\(\)\+\=\"\'\<\>\/]+?)$/', $string ) )
+		{
+			return false;
+		}
+		
+		if ( $to == $from )
+		{
+			return false;
+		}
+		
+		if( ! $from )
+		{
+			return false;
+		}
+		
+		if( !$string OR $string == '' )
+		{
+			return false;
+		}		
+		
+		return true;
+	}
+}