Parle\RParser::trace

    (PECL parle >= 0.7.0)

    Parle\RParser::trace — Trace the parser operation

    说明

    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.

    参数

    此函数没有参数。

    返回值

    Returns a string with the trace information.

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