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<?php
/**
* Hoa
*
*
* @license
*
* New BSD License
*
* Copyright © 2007-2017, Hoa community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Hoa nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
namespace Psy\Readline\Hoa;
/**
* Class \Hoa\File\Read.
*
* File handler.
*/
class FileRead extends File implements StreamIn
{
/**
* Open a file.
*/
public function __construct(
string $streamName,
string $mode = parent::MODE_READ,
string $context = null,
bool $wait = false
) {
parent::__construct($streamName, $mode, $context, $wait);
return;
}
/**
* Open the stream and return the associated resource.
*/
protected function &_open(string $streamName, StreamContext $context = null)
{
static $createModes = [
parent::MODE_READ,
];
if (!\in_array($this->getMode(), $createModes)) {
throw new FileException('Open mode are not supported; given %d. Only %s are supported.', 0, [$this->getMode(), \implode(', ', $createModes)]);
}
\preg_match('#^(\w+)://#', $streamName, $match);
if (((isset($match[1]) && $match[1] === 'file') || !isset($match[1])) &&
!\file_exists($streamName)) {
throw new FileDoesNotExistException('File %s does not exist.', 1, $streamName);
}
$out = parent::_open($streamName, $context);
return $out;
}
/**
* Test for end-of-file.
*/
public function eof(): bool
{
return \feof($this->getStream());
}
/**
* Read n characters.
*/
public function read(int $length)
{
if (0 > $length) {
throw new FileException('Length must be greater than 0, given %d.', 2, $length);
}
return \fread($this->getStream(), $length);
}
/**
* Alias of $this->read().
*/
public function readString(int $length)
{
return $this->read($length);
}
/**
* Read a character.
*/
public function readCharacter()
{
return \fgetc($this->getStream());
}
/**
* Read a boolean.
*/
public function readBoolean()
{
return (bool) $this->read(1);
}
/**
* Read an integer.
*/
public function readInteger(int $length = 1)
{
return (int) $this->read($length);
}
/**
* Read a float.
*/
public function readFloat(int $length = 1)
{
return (float) $this->read($length);
}
/**
* Read an array.
* Alias of the $this->scanf() method.
*/
public function readArray(string $format = null)
{
return $this->scanf($format);
}
/**
* Read a line.
*/
public function readLine()
{
return \fgets($this->getStream());
}
/**
* Read all, i.e. read as much as possible.
*/
public function readAll(int $offset = 0)
{
return \stream_get_contents($this->getStream(), -1, $offset);
}
/**
* Parse input from a stream according to a format.
*/
public function scanf(string $format): array
{
return \fscanf($this->getStream(), $format);
}
}
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