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<?php
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/*
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* This file is part of SwiftMailer.
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* (c) 2004-2009 Chris Corbyn
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* Analyzes characters for a specific character set.
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* @package Swift
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* @subpackage Encoder
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* @author Chris Corbyn
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* @author Xavier De Cock <xdecock@gmail.com>
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*/
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interface Swift_CharacterReader
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{
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const MAP_TYPE_INVALID = 0x01;
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const MAP_TYPE_FIXED_LEN = 0x02;
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const MAP_TYPE_POSITIONS = 0x03;
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/**
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* Returns the complete charactermap
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*
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* @param string $string
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* @param int $startOffset
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* @param array $currentMap
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* @param mixed $ignoredChars
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* @return int
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*/
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public function getCharPositions($string, $startOffset, &$currentMap, &$ignoredChars);
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/**
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* Returns mapType
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* @int mapType
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*/
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public function getMapType();
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/**
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* Returns an integer which specifies how many more bytes to read.
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* A positive integer indicates the number of more bytes to fetch before invoking
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* this method again.
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* A value of zero means this is already a valid character.
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* A value of -1 means this cannot possibly be a valid character.
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* @param int[] $bytes
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* @return int
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*/
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public function validateByteSequence($bytes, $size);
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/**
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* Returns the number of bytes which should be read to start each character.
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* For fixed width character sets this should be the number of
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* octets-per-character. For multibyte character sets this will probably be 1.
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* @return int
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*/
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public function getInitialByteSize();
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}
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