$this push(Token $token)

Pushes a token.

Parameters

Token

$token

Return Value

$this

$this freeze()

Freezes stream.

Return Value

$this

Token getNext()

Returns next token.

Return Value

Token

Exceptions

InternalErrorException

If there is no more token

Token getPeek()

Returns peeked token.

Return Value

Token

Token[] getUsed()

Returns used tokens.

Return Value

Token[]

string getNextIdentifier()

Returns nex identifier token.

Return Value

string

The identifier token value

Exceptions

SyntaxErrorException

If next token is not an identifier

string|null getNextIdentifierOrStar()

Returns nex identifier or star delimiter token.

Return Value

string|null

The identifier token value or null if star found

Exceptions

SyntaxErrorException

If next token is not an identifier or a star delimiter

skipWhitespace()

Skips next whitespace if any.