public function __construct(Tokenizer $tokens, $expect = null, $where = null)
{
if ($expect && count($expect) == 1 && is_string($expect[0])) {
$expect = ", expect '" . $expect[0] . "'";
} else {
$expect = "";
}
if (!$tokens->curr) {
$this->message = "Unexpected end of " . ($where ?: "expression") . "{$expect}";
} else {
$this->message = "Unexpected token '" . $tokens->current() . "' in " . ($where ?: "expression") . "{$expect}";
}
}
public function parseTerm(Tokenizer $tokens)
{
$zval = new Zval($this);
if ($tokens->is(Tokenizer::MACRO_UNARY)) {
$unary = $tokens->getAndNext();
} else {
$unary = "";
}
if ($tokens->is(T_LNUMBER, T_DNUMBER)) {
return $zval->setScalar($tokens->getAndNext() * intval($unary . "1"));
} elseif ($tokens->is(T_CONSTANT_ENCAPSED_STRING)) {
$string = $tokens->getAndNext();
if ($string[0] == '"') {
$string = substr($string, 1, -1);
} else {
$string = addslashes(substr($string, 1, -1));
}
return $zval->setScalar($string);
} elseif ($tokens->is(T_STRING)) {
if ($tokens->isSpecialVal()) {
return $zval->setScalar(json_decode(strtolower($tokens->getAndNext())));
} else {
throw new \RuntimeException("callback or constant: " . $tokens->current());
}
} elseif ($tokens->is(T_VARIABLE)) {
return $this->parseVariable($tokens);
} else {
throw new \RuntimeException("Another tokens not ready yet: " . $tokens->current());
}
}
