private function error($message = "Unexpected '%s'")
{
list(, $line, $col) = self::$tokenizer->getOffset($this->n);
$token = isset(self::$tokenizer->tokens[$this->n])
? str_replace("\n", '<new line>', NStrings::truncate(self::$tokenizer->tokens[$this->n], 40))
: 'end';
throw new NNeonException(str_replace('%s', $token, $message) . " on line $line, column $col.");
}
public function __construct($input)
{
parent::__construct(array(
self::T_WHITESPACE => '\s+',
self::T_COMMENT => '(?s)/\*.*?\*/',
self::T_STRING => NParser::RE_STRING,
self::T_KEYWORD => '(?:true|false|null|and|or|xor|clone|new|instanceof|return|continue|break|[A-Z_][A-Z0-9_]{2,})(?![\w\pL_])', // keyword or const
self::T_CAST => '\((?:expand|string|array|int|integer|float|bool|boolean|object)\)', // type casting
self::T_VARIABLE => '\$[\w\pL_]+',
self::T_NUMBER => '[+-]?[0-9]+(?:\.[0-9]+)?(?:e[0-9]+)?',
self::T_SYMBOL => '[\w\pL_]+(?:-[\w\pL_]+)*',
self::T_CHAR => '::|=>|[^"\']', // =>, any char except quotes
), 'u');
$this->ignored = array(self::T_COMMENT, self::T_WHITESPACE);
$this->tokenize($input);
}