Parle\RLexer::callout

(PECL parle >= 0.7.2)

Parle\RLexer::callout — Define token callback

public Parle\RLexer::callout ( int $id , callable $callback ) : void

Define a callback to be invoked once lexer encounters a particular token.

id: Token id.
callback: Callable to be invoked. The callable doesn't receive any arguments and its return value is ignored.

没有返回值。