Introduction - If you have any usage issues, please Google them yourself
By designing, developing, debugging a syntax and semantic analysis procedures, better understanding of the syntax and semantic analysis to understand the principle.
IF <Boolean expression> THEN <assignment> ELSE <assignment statement>
Which
(1), recursive descent method to choose, LL (1), priority analysis operator, LR Law on the above tasks, choice of intermediate code quaternion type.
(2), write in line with the requirements of analysis grammar, the idea of analytical methods are given to complete the analysis of program design.
(3), a good analysis of the preparation process, the design of a number of use cases, and through the test analysis program designed