Add src files for CoreLibs composer all package

src/Language/Core/StringReader.php

@@ -0,0 +1,98 @@
+<?php
+
+/*
+	Copyright (c) 2003, 2005, 2006, 2009 Danilo Segan <danilo@kvota.net>.
+
+	This file is part of PHP-gettext.
+
+	PHP-gettext 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.
+
+	PHP-gettext 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 PHP-gettext; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+declare(strict_types=1);
+
+namespace CoreLibs\Language\Core;
+
+class StringReader
+{
+	/** @var int */
+	public $sr_pos;
+	/** @var string */
+	public $sr_str;
+
+	/**
+	 * constructor for string reader
+	 *
+	 * @param string $str basic string
+	 */
+	public function __construct(string $str = '')
+	{
+		$this->sr_str = $str;
+		$this->sr_pos = 0;
+	}
+
+	/**
+	 * read bytes in string
+	 *
+	 * @param  int $bytes bytes to read in string
+	 * @return string     data read in length of bytes as string
+	 */
+	public function read(int $bytes): string
+	{
+		$data = substr($this->sr_str, $this->sr_pos, $bytes);
+		$this->sr_pos += $bytes;
+		if (strlen($this->sr_str) < $this->sr_pos) {
+			$this->sr_pos = strlen($this->sr_str);
+		}
+
+		return $data;
+	}
+
+	/**
+	 * go to position in string
+	 *
+	 * @param  int $pos position in string
+	 * @return int      new position in string after seek
+	 */
+	public function seekto(int $pos): int
+	{
+		$this->sr_pos = $pos;
+		if (strlen($this->sr_str) < $this->sr_pos) {
+			$this->sr_pos = strlen($this->sr_str);
+		}
+		return $this->sr_pos;
+	}
+
+	/**
+	 * get current position in string
+	 *
+	 * @return int position in string
+	 */
+	public function currentpos(): int
+	{
+		return $this->sr_pos;
+	}
+
+	/**
+	 * get length of string
+	 *
+	 * @return int return length of assigned string
+	 */
+	public function length(): int
+	{
+		return strlen($this->sr_str);
+	}
+}
+
+// __END__