<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Handles Quoted Printable (Q) Header Encoding in Swift Mailer.
*
* @author Chris Corbyn
*/
class Swift_Mime_HeaderEncoder_QpHeaderEncoder extends Swift_Encoder_QpEncoder implements Swift_Mime_HeaderEncoder
{
/**
* Creates a new QpHeaderEncoder for the given CharacterStream.
*
* @param Swift_CharacterStream $charStream to use for reading characters
*/
public function __construct(Swift_CharacterStream $charStream)
{
parent::__construct($charStream);
}
protected function initSafeMap()
{
foreach (array_merge(
range(0x61, 0x7A), range(0x41, 0x5A),
range(0x30, 0x39), [0x20, 0x21, 0x2A, 0x2B, 0x2D, 0x2F]
) as $byte) {
$this->safeMap[$byte] = chr($byte);
}
}
/**
* Get the name of this encoding scheme.
*
* Returns the string 'Q'.
*
* @return string
*/
public function getName()
{
return 'Q';
}
/**
* Takes an unencoded string and produces a QP encoded string from it.
*
* @param string $string string to encode
* @param int $firstLineOffset optional
* @param int $maxLineLength optional, 0 indicates the default of 76 chars
*
* @return string
*/
public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0)
{
return str_replace([' ', '=20', "=\r\n"], ['_', '_', "\r\n"],
parent::encodeString($string, $firstLineOffset, $maxLineLength)
);
}
}