PROJECT STILL IN PROGRESS!
Description: Simple compiler of 7 statement-types with the goal to read a foreign .shcl file (Seohyun Hwang's compiled language), then to translate its contents into C code and write results into a separate .c file; the compiler is written as a Java program to take advantage of OOP.
• Currently implemented: tokenization, variable-collision check, nondeclared variable-usage check
• All source code is found within the src folder (incl. Main.java, Lexer.java, Parser.java, SemAn.java).
• Sample source code in the new programming language is located in main.shcl.

Practice mission: OOP, tokenization, file-management, understanding the reasons for the nature of contemporary compilers, understanding the difference between compilers and interpreters, understanding the reasons for the nature of contemporary compiled programming languages, handling a wide range of logical variations using a cohesive structure

Yet to do: ordering arithmetic operations in PEMDAS form, unrolling while-loops

7 statement-types

1. #intnew,varname,;
2. #boolnew,varname,;
3. #intdef,varname=arithmeticArgument,;
4. #booldef,varname=conditionalArgument,;
5. #while0,varname{statements};
6. #while1,varname{statements};
7. #print,varname,;

# begins a statement. ; ends a statement.

Token naming:

1. #intnew, --> $FK1
2. #boolnew, --> $FK2
3. #intdef, --> $FK3
4. #booldef, --> $FK4
5. #while0, --> $FK5
6. #while1, --> $FK6
7. #print, --> $FK7
8. Variable in argument of FK3 --> $UV1
9. Variable in argument of FK4 --> $UV2
10. Numeric-literal in FK1 --> $NL1
11. Numeric-literal in FK2 --> $NL2
12. Numeric-literal in FK3 --> $NL3
13. Numeric-literal in FK4 --> $NL4
14. Boolean false --> $B0
15. Boolean true --> $B1
16. + (addition operator) --> $ADD+
17. - (subtraction operator) --> $SUBT-
18. * (multiplication operator) --> $MULT*
19. / (division operator) --> $DIV/
20. : (conditional equality) --> $CEQ:
21. < (lesser than) --> $LESSER<
22. > (greater than) --> $GREATER>
23. = --> $S1 (start of arithmetic/conditional argument)
24. { --> $S2 (start of loop)
25. ; --> $T1 (end of arithmetic/conditional argument)
26. } --> $T2 (end of loop)

Abbreviation meanings:

1. FK: first keyword
2. S: starting-point
3. UV: use-variable
4. NL: numeric-literal
5. T: terminal

Additional rules:

1. Variable-names are case-sensitive; the rest is case-insensitive.
2. Variable-names must be purely alphanumeric. They cannot be purely numeric. A number can exist at any position within the variable-name.
3. The lexer ignores whitespaces , newlines \n, and any text outside statement markers # and ; (perhaps within loop markers { and }).