FM / MoTranslator

/usr/share/php/PhpMyAdmin/MoTranslator

Name	Size	Mode	Actions
autoload.php	838	0644	edit dl rm
functions.php	5719	0644	edit dl rm
Loader.php	7903	0644	edit dl rm
ReaderException.php	1087	0644	edit dl rm
StringReader.php	3180	0644	edit dl rm
Translator.php	12290	0644	edit dl rm

Edit: /usr/share/php/PhpMyAdmin/MoTranslator/StringReader.php (3180B)

<?php

declare(strict_types=1);

/*
    Copyright (c) 2003, 2005, 2006, 2009 Danilo Segan <danilo@kvota.net>.
    Copyright (c) 2016 Michal Čihař <michal@cihar.com>

This file is part of MoTranslator.

This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

namespace PhpMyAdmin\MoTranslator;

use const PHP_INT_MAX;
use function file_get_contents;
use function strlen;
use function substr;
use function unpack;

/**
 * Simple wrapper around string buffer for
 * random access and values parsing.
 */
class StringReader
{
    /** @var string */
    private $string;
    /** @var int */
    private $length;

/**
     * @param string $filename Name of file to load
     */
    public function __construct(string $filename)
    {
        $this->string = (string) file_get_contents($filename);
        $this->length = strlen($this->string);
    }

/**
     * Read number of bytes from given offset.
     *
     * @param int $pos   Offset
     * @param int $bytes Number of bytes to read
     */
    public function read(int $pos, int $bytes): string
    {
        if ($pos + $bytes > $this->length) {
            throw new ReaderException('Not enough bytes!');
        }

return substr($this->string, $pos, $bytes);
    }

/**
     * Reads a 32bit integer from the stream.
     *
     * @param string $unpack Unpack string
     * @param int    $pos    Position
     *
     * @return int Integer from the stream
     */
    public function readint(string $unpack, int $pos): int
    {
        $data = unpack($unpack, $this->read($pos, 4));
        if ($data === false) {
            return PHP_INT_MAX;
        }

$result = $data[1];

/* We're reading unsigned int, but PHP will happily
         * give us negative number on 32-bit platforms.
         *
         * See also documentation:
         * https://secure.php.net/manual/en/function.unpack.php#refsect1-function.unpack-notes
         */
        return $result < 0 ? PHP_INT_MAX : $result;
    }

/**
     * Reads an array of integers from the stream.
     *
     * @param string $unpack Unpack string
     * @param int    $pos    Position
     * @param int    $count  How many elements should be read
     *
     * @return int[] Array of Integers
     */
    public function readintarray(string $unpack, int $pos, int $count): array
    {
        $data = unpack($unpack . $count, $this->read($pos, 4 * $count));
        if ($data === false) {
            return [];
        }

return $data;
    }
}

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