Introduction - If you have any usage issues, please Google them yourself
Given the grammar and the grammar nonterminals corresponding FIRSTVT and LASTVT set to based on grammar and FIRSTVT and LASTVT generation of operator precedence table. The basic function of the dynamic simulation algorithm is: Enter a given grammar, and FIRSTVT and LASTVT set output operator precedence analysis table generating algorithm output algorithm of table construction process priority main priority is based on the relationship between structure operator algorithm to draw priority relationship matrix.