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authorFrédéric Guillot <fred@kanboard.net>2014-08-15 17:23:41 -0700
committerFrédéric Guillot <fred@kanboard.net>2014-08-15 17:23:41 -0700
commit9eeded33f68872515954a2fc177fcb47a9273ae9 (patch)
treef3ef9507e087ca6bf3ce624232da240a8689b051 /vendor/swiftmailer/classes/Swift/ByteStream/ArrayByteStream.php
parentc539bdc8ab746c5afd48cf87de057dc38d50adac (diff)
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Diffstat (limited to 'vendor/swiftmailer/classes/Swift/ByteStream/ArrayByteStream.php')
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diff --git a/vendor/swiftmailer/classes/Swift/ByteStream/ArrayByteStream.php b/vendor/swiftmailer/classes/Swift/ByteStream/ArrayByteStream.php
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+<?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.
+ */
+
+/**
+ * Allows reading and writing of bytes to and from an array.
+ *
+ * @author Chris Corbyn
+ */
+class Swift_ByteStream_ArrayByteStream implements Swift_InputByteStream, Swift_OutputByteStream
+{
+ /**
+ * The internal stack of bytes.
+ *
+ * @var string[]
+ */
+ private $_array = array();
+
+ /**
+ * The size of the stack
+ *
+ * @var int
+ */
+ private $_arraySize = 0;
+
+ /**
+ * The internal pointer offset.
+ *
+ * @var int
+ */
+ private $_offset = 0;
+
+ /**
+ * Bound streams.
+ *
+ * @var Swift_InputByteStream[]
+ */
+ private $_mirrors = array();
+
+ /**
+ * Create a new ArrayByteStream.
+ *
+ * If $stack is given the stream will be populated with the bytes it contains.
+ *
+ * @param mixed $stack of bytes in string or array form, optional
+ */
+ public function __construct($stack = null)
+ {
+ if (is_array($stack)) {
+ $this->_array = $stack;
+ $this->_arraySize = count($stack);
+ } elseif (is_string($stack)) {
+ $this->write($stack);
+ } else {
+ $this->_array = array();
+ }
+ }
+
+ /**
+ * Reads $length bytes from the stream into a string and moves the pointer
+ * through the stream by $length.
+ *
+ * If less bytes exist than are requested the
+ * remaining bytes are given instead. If no bytes are remaining at all, boolean
+ * false is returned.
+ *
+ * @param int $length
+ *
+ * @return string
+ */
+ public function read($length)
+ {
+ if ($this->_offset == $this->_arraySize) {
+ return false;
+ }
+
+ // Don't use array slice
+ $end = $length + $this->_offset;
+ $end = $this->_arraySize<$end
+ ?$this->_arraySize
+ :$end;
+ $ret = '';
+ for (; $this->_offset < $end; ++$this->_offset) {
+ $ret .= $this->_array[$this->_offset];
+ }
+
+ return $ret;
+ }
+
+ /**
+ * Writes $bytes to the end of the stream.
+ *
+ * @param string $bytes
+ */
+ public function write($bytes)
+ {
+ $to_add = str_split($bytes);
+ foreach ($to_add as $value) {
+ $this->_array[] = $value;
+ }
+ $this->_arraySize = count($this->_array);
+
+ foreach ($this->_mirrors as $stream) {
+ $stream->write($bytes);
+ }
+ }
+
+ /**
+ * Not used.
+ */
+ public function commit()
+ {
+ }
+
+ /**
+ * Attach $is to this stream.
+ *
+ * The stream acts as an observer, receiving all data that is written.
+ * All {@link write()} and {@link flushBuffers()} operations will be mirrored.
+ *
+ * @param Swift_InputByteStream $is
+ */
+ public function bind(Swift_InputByteStream $is)
+ {
+ $this->_mirrors[] = $is;
+ }
+
+ /**
+ * Remove an already bound stream.
+ *
+ * If $is is not bound, no errors will be raised.
+ * If the stream currently has any buffered data it will be written to $is
+ * before unbinding occurs.
+ *
+ * @param Swift_InputByteStream $is
+ */
+ public function unbind(Swift_InputByteStream $is)
+ {
+ foreach ($this->_mirrors as $k => $stream) {
+ if ($is === $stream) {
+ unset($this->_mirrors[$k]);
+ }
+ }
+ }
+
+ /**
+ * Move the internal read pointer to $byteOffset in the stream.
+ *
+ * @param int $byteOffset
+ *
+ * @return bool
+ */
+ public function setReadPointer($byteOffset)
+ {
+ if ($byteOffset > $this->_arraySize) {
+ $byteOffset = $this->_arraySize;
+ } elseif ($byteOffset < 0) {
+ $byteOffset = 0;
+ }
+
+ $this->_offset = $byteOffset;
+ }
+
+ /**
+ * Flush the contents of the stream (empty it) and set the internal pointer
+ * to the beginning.
+ */
+ public function flushBuffers()
+ {
+ $this->_offset = 0;
+ $this->_array = array();
+ $this->_arraySize = 0;
+
+ foreach ($this->_mirrors as $stream) {
+ $stream->flushBuffers();
+ }
+ }
+}