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<?php
namespace Gettext\Utils;
class StringReader
{
public $pos;
public $str;
public $strlen;
/**
* Constructor.
*
* @param string $str The string to read
*/
public function __construct($str)
{
$this->str = $str;
$this->strlen = strlen($this->str);
}
/**
* Read and returns a part of the string.
*
* @param int $bytes The number of bytes to read
*
* @return string
*/
public function read($bytes)
{
$data = substr($this->str, $this->pos, $bytes);
$this->seekto($this->pos + $bytes);
return $data;
}
/**
* Move the cursor to a specific position.
*
* @param int $pos The amount of bytes to move
*
* @return int The new position
*/
public function seekto($pos)
{
$this->pos = ($this->strlen < $pos) ? $this->strlen : $pos;
return $this->pos;
}
}
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