mjc

A compiler for the Mini-Java programming language.

Mini-Java language

Take a look at documentation/mjmanual.pdf to read the manual and more details about the Mini-Java programming language.

Mini-Java Compiler (mjc)

mjc is the compiler implemented for the Mini-Java programming language following the specifications present in the manual.

Play with the mjlexer

mjlexer is the lexical analyzer used by mjc to recognize the Mini-Java tokens. It was generated by the lex tool. You can test mjlexer by following the steps below:

1. install flex, to gather the lex tool
2. run $ make lexer
3. run either echo "your code goes here" | ./bin/mjlexer or ./bin/mjlexer < your-program.mj

Play with the LL(1) parsers

LL(1) parsers apply left derivations from left to right looking at most one token ahead in order to select the proper production. mjc can be used with two LL(1) parsers, a recursive and a non-recursive ones. You can run each of those parsers by following these steps:

1. run $ make ll1parser
2. run $ ./bin/mjcll1 [R | N] < your-program.mj, where R indicates to use the recursive parser, and N, the non-recursive.

Play with the LALR parser

Yacc was used to generate a bottom-up parser for the Mini-Java Language. You can run it by following these steps:

1. run `$ make lalrparserast
2. run $ ./bin/mjclalr < your-program.mj

This will print an Abstract Syntax Tree of the program.