/**
* Parse variable name: $a, $a.b, $a.b['c'], $a:index
* @param Tokenizer $tokens
* @param $var
* @return string
* @throws Error\UnexpectedTokenException
*/
public function parseVariable(Tokenizer $tokens, $var = null)
{
if (!$var) {
if ($tokens->isNext('@')) {
// $v = $tokens->get(T_VARIABLE);
$prop = $tokens->next()->next()->get(T_STRING);
if ($tag = $this->getParentScope("foreach")) {
$tokens->next();
return Compiler::foreachProp($tag, $prop);
} else {
throw new UnexpectedTokenException($tokens);
}
} else {
$var = '$var["' . substr($tokens->get(T_VARIABLE), 1) . '"]';
$tokens->next();
}
}
while ($t = $tokens->key()) {
if ($t === ".") {
$tokens->next();
if ($tokens->is(T_VARIABLE)) {
$key = '[ $var["' . substr($tokens->getAndNext(), 1) . '"] ]';
} elseif ($tokens->is(Tokenizer::MACRO_STRING)) {
$key = '["' . $tokens->getAndNext() . '"]';
} elseif ($tokens->is(Tokenizer::MACRO_SCALAR)) {
$key = "[" . $tokens->getAndNext() . "]";
} elseif ($tokens->is('"')) {
$key = "[" . $this->parseQuote($tokens) . "]";
} elseif ($tokens->is('.')) {
$tokens->back();
break;
} else {
throw new UnexpectedTokenException($tokens);
}
$var .= $key;
} elseif ($t === "[") {
if ($tokens->isNext(']')) {
break;
}
$tokens->next();
if ($tokens->is(Tokenizer::MACRO_STRING)) {
if ($tokens->isNext("(")) {
$key = "[" . $this->parseExpr($tokens) . "]";
} else {
$key = '["' . $tokens->current() . '"]';
$tokens->next();
}
} else {
$key = "[" . $this->parseExpr($tokens) . "]";
}
$tokens->get("]");
$tokens->next();
$var .= $key;
} elseif ($t === T_DNUMBER) {
$var .= '[' . substr($tokens->getAndNext(), 1) . ']';
} elseif ($t === T_OBJECT_OPERATOR) {
$var .= "->" . $tokens->getNext(T_STRING);
$tokens->next();
} else {
break;
}
}
return $var;
}
