88 lines
2.1 KiB
PHP
88 lines
2.1 KiB
PHP
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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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* An abstract means of reading and writing data in terms of characters as opposed
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* to bytes.
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*
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* Classes implementing this interface may use a subsystem which requires less
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* memory than working with large strings of data.
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*
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* @author Chris Corbyn
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*/
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interface Swift_CharacterStream
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{
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/**
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* Set the character set used in this CharacterStream.
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*
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* @param string $charset
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*/
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public function setCharacterSet($charset);
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/**
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* Set the CharacterReaderFactory for multi charset support.
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*/
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public function setCharacterReaderFactory(Swift_CharacterReaderFactory $factory);
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/**
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* Overwrite this character stream using the byte sequence in the byte stream.
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*
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* @param Swift_OutputByteStream $os output stream to read from
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*/
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public function importByteStream(Swift_OutputByteStream $os);
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/**
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* Import a string a bytes into this CharacterStream, overwriting any existing
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* data in the stream.
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*
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* @param string $string
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*/
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public function importString($string);
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/**
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* Read $length characters from the stream and move the internal pointer
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* $length further into the stream.
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*
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* @param int $length
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*
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* @return string
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*/
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public function read($length);
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/**
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* Read $length characters from the stream and return a 1-dimensional array
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* containing there octet values.
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*
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* @param int $length
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*
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* @return int[]
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*/
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public function readBytes($length);
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/**
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* Write $chars to the end of the stream.
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*
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* @param string $chars
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*/
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public function write($chars);
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/**
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* Move the internal pointer to $charOffset in the stream.
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*
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* @param int $charOffset
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*/
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public function setPointer($charOffset);
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/**
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* Empty the stream and reset the internal pointer.
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*/
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public function flushContents();
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}
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