Parle\RLexer::callout

(PECL parle >= 0.7.2)

Parle\RLexer::callout — Define token callback

Description

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

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

Parameters

id

Token id.

callback

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

Return Values

No value is returned.