%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
namespace Gaufrette;
/**
* Represents a stream mode.
*
* @author Antoine Hérault <antoine.herault@gmail.com>
*/
class StreamMode
{
private $mode;
private $base;
private $plus;
private $flag;
/**
* @param string $mode A stream mode as for the use of fopen()
*/
public function __construct($mode)
{
$this->mode = $mode;
$mode = substr($mode, 0, 3);
$rest = substr($mode, 1);
$this->base = substr($mode, 0, 1);
$this->plus = false !== strpos($rest, '+');
$this->flag = trim($rest, '+');
}
/**
* Returns the underlying mode.
*
* @return string
*/
public function getMode()
{
return $this->mode;
}
/**
* Indicates whether the mode allows to read.
*
* @return bool
*/
public function allowsRead()
{
if ($this->plus) {
return true;
}
return 'r' === $this->base;
}
/**
* Indicates whether the mode allows to write.
*
* @return bool
*/
public function allowsWrite()
{
if ($this->plus) {
return true;
}
return 'r' !== $this->base;
}
/**
* Indicates whether the mode allows to open an existing file.
*
* @return bool
*/
public function allowsExistingFileOpening()
{
return 'x' !== $this->base;
}
/**
* Indicates whether the mode allows to create a new file.
*
* @return bool
*/
public function allowsNewFileOpening()
{
return 'r' !== $this->base;
}
/**
* Indicates whether the mode implies to delete the existing content of the
* file when it already exists.
*
* @return bool
*/
public function impliesExistingContentDeletion()
{
return 'w' === $this->base;
}
/**
* Indicates whether the mode implies positioning the cursor at the
* beginning of the file.
*
* @return bool
*/
public function impliesPositioningCursorAtTheBeginning()
{
return 'a' !== $this->base;
}
/**
* Indicates whether the mode implies positioning the cursor at the end of
* the file.
*
* @return bool
*/
public function impliesPositioningCursorAtTheEnd()
{
return 'a' === $this->base;
}
/**
* Indicates whether the stream is in binary mode.
*
* @return bool
*/
public function isBinary()
{
return 'b' === $this->flag;
}
/**
* Indicates whether the stream is in text mode.
*
* @return bool
*/
public function isText()
{
return false === $this->isBinary();
}
}
Zerion Mini Shell 1.0