Introduction - If you have any usage issues, please Google them yourself
Implement a lexical analyzer, lexical analysis program' s main task is scanned from left to right each line source, makes up words, and replaced with a unified internal representation (token) output, given parser. These include:- Organization of the input source - word fight by the rules, and converted into binary form - filter out the blank character, skip notes, line breaks and some useless symbols (such as character constants quotation marks) (experimental 1 has been completed) - to the ranks of count, the ranks for that error number, and copy the wrong part of it - list of print source - find and locate lexical errors - generate symbol table. token file and symbol table as part of parsing the input.