Summarize your design of the toy compiler, including but not limited to$,$ command formats, keywords, variables, operators, CFG$,$ etc.

Summarize your implementation, you may briefly introduce your source code, e$.$g$.,$ code organization, architectural design choices, etc.

Clean up your source code.

Get ready to demonstrate what your compiler can do during the $3$rd executive visit. Specifically, you should demonstrate at least the following:

Input file: show the source code file of the program written in your programming language;

Output: show what your toy compiler does after taking the input file.