1<?php 2 3/* 4 * This file is part of SwiftMailer. 5 * (c) 2004-2009 Chris Corbyn 6 * 7 * For the full copyright and license information, please view the LICENSE 8 * file that was distributed with this source code. 9 */ 10 11/** 12 * Handles Quoted Printable (Q) Header Encoding in Swift Mailer. 13 * 14 * @author Chris Corbyn 15 */ 16class Swift_Mime_HeaderEncoder_QpHeaderEncoder extends Swift_Encoder_QpEncoder implements Swift_Mime_HeaderEncoder 17{ 18 /** 19 * Creates a new QpHeaderEncoder for the given CharacterStream. 20 * 21 * @param Swift_CharacterStream $charStream to use for reading characters 22 */ 23 public function __construct(Swift_CharacterStream $charStream) 24 { 25 parent::__construct($charStream); 26 } 27 28 protected function initSafeMap() 29 { 30 foreach (array_merge( 31 range(0x61, 0x7A), range(0x41, 0x5A), 32 range(0x30, 0x39), array(0x20, 0x21, 0x2A, 0x2B, 0x2D, 0x2F) 33 ) as $byte) { 34 $this->safeMap[$byte] = chr($byte); 35 } 36 } 37 38 /** 39 * Get the name of this encoding scheme. 40 * 41 * Returns the string 'Q'. 42 * 43 * @return string 44 */ 45 public function getName() 46 { 47 return 'Q'; 48 } 49 50 /** 51 * Takes an unencoded string and produces a QP encoded string from it. 52 * 53 * @param string $string string to encode 54 * @param int $firstLineOffset optional 55 * @param int $maxLineLength optional, 0 indicates the default of 76 chars 56 * 57 * @return string 58 */ 59 public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0) 60 { 61 return str_replace(array(' ', '=20', "=\r\n"), array('_', '_', "\r\n"), 62 parent::encodeString($string, $firstLineOffset, $maxLineLength) 63 ); 64 } 65} 66