Parle\Parser::trace

(PECL parle >= 0.5.1)

Parle\Parser::trace — Trace the parser operation

說明

public Parle\Parser::trace(): string

Retrieve the current parser operation description. This can be especially useful for studying the parser and to optimize the grammar.

參數(shù)

此函數(shù)沒有參數(shù)。

返回值

Returns a string with the trace information.