Parle\RParser::trace
(PECL parle >= 0.7.0)
Parle\RParser::trace — Trace the parser operation
说明
public
Parle\RParser::trace (
void ) :
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.
