Parle\RParser::trace

(PECL parle >= 0.7.0)

Parle\RParser::trace — Trace the parser operation

說明

public Parle\RParser::trace(): string

Retrieve the current parser operation description. This can be especially useful to study 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.