This is a simple lexical analyzer for the programming language PL/0. The program reads in a source program written in PL/0, identifies tokens, and produces an output that includes the source program, the source program lexeme table, and the token list.
- Supports tokens for identifiers, numbers, and symbols specified in the PL/0 language.
- Handles keywords such as
begin,end,if,while, etc. - Detects lexical errors such as identifier or number length exceeding the maximum allowed, and invalid symbols.
- Ignores comments and invisible characters in the input file.
- Compile the program using a C compiler.
- Run the compiled executable, providing the input file containing the PL/0 source code.
- The program will generate the token list as output.
The input file should contain the PL/0 source code. Compile with gcc lex.c ./a.out input.txt