<?php/* @description     Transformation Style Sheets - Revolutionising PHP templating    * * @author          Tom Butler tom@r.je                                             * * @copyright       2017 Tom Butler <tom@r.je> | https://r.je/                      * * @license         http://www.opensource.org/licenses/bsd-license.php  BSD License * * @version         1.2                                                             */namespace Transphporm\Parser\Tokenizer;use Transphporm\Parser\Tokenizer;class TokenizedString {	private $str;	private $pos = -1;	private $lineNo = 1;	private $chars = [		'"' => Tokenizer::STRING,		'\'' => Tokenizer::STRING,		'(' => Tokenizer::OPEN_BRACKET,		')' => Tokenizer::CLOSE_BRACKET,		'[' => Tokenizer::OPEN_SQUARE_BRACKET,		']' => Tokenizer::CLOSE_SQUARE_BRACKET,		'+' => Tokenizer::CONCAT,		',' => Tokenizer::ARG,		'.' => Tokenizer::DOT,		'!' => Tokenizer::NOT,		'=' => Tokenizer::EQUALS,		'{' => Tokenizer::OPEN_BRACE,		'}' => Tokenizer::CLOSE_BRACE,		':' => Tokenizer::COLON,		';' => Tokenizer::SEMI_COLON,		'#' => Tokenizer::NUM_SIGN,		'>' => Tokenizer::GREATER_THAN,		'<' => Tokenizer::LOWER_THAN,		'@' => Tokenizer::AT_SIGN,		'-' => Tokenizer::SUBTRACT,		'*' => Tokenizer::MULTIPLY,		'/' => Tokenizer::DIVIDE,		' ' => Tokenizer::WHITESPACE,		"\n" => Tokenizer::NEW_LINE,		"\r" => Tokenizer::WHITESPACE,		"\t" => Tokenizer::WHITESPACE	];	public function __construct($str) {		$this->str = $str;	}	public function move($n) {		if ($n === false) $this->pos = strlen($this->str)-1;		else $this->pos += $n;	}	public function next() {		$this->pos++;		return $this->pos < strlen($this->str);	}	public function reset() {		$this->lineNo = 1;		$this->pos = -1;	}	public function read($offset = 0) {		return $this->str[$this->pos + $offset];	}	public function identifyChar($offset = 0) {		$chr = $this->str[$this->pos + $offset];		if (!empty($this->chars[$chr])) return $this->chars[$chr];		else return Tokenizer::NAME;	}	public function has($offset = 0) {		return isset($this->str[$this->pos + $offset]);	}	public function pos($str) {		$pos = strpos($this->str,  $str, $this->pos);		return $pos ? $pos-$this->pos : false;	}	public function newLine() {		return $this->lineNo++;	}	public function lineNo() {		return $this->lineNo;	}	public function extractString($offset = 0) {		$pos = $this->pos + $offset;		$char = $this->str[$pos];		$end = strpos($this->str, $char, $pos+1);		while ($end !== false && $this->str[$end-1] == '\\') $end = strpos($this->str, $char, $end+1);		return substr($this->str, $pos+1, $end-$pos-1);	}	public function extractBrackets($startBracket = '(', $closeBracket = ')', $offset = 0) {		$open = $this->pos+$offset;		$close = strpos($this->str, $closeBracket, $open);		$cPos = $open+1;		while (($cPos = strpos($this->str, $startBracket, $cPos+1)) !== false && $cPos < $close) $close = strpos($this->str, $closeBracket, $close+1);		return substr($this->str, $open+1, $close-$open-1);	}