TwoPart Programming Language

Concept: a basic programming language that should allow basic calculations, variables, method definitions and method calls, compile program to binary.

For a while I wanted to get into creating my very own programming language. Implementing a full blown C style language like C#, C++ or Java would be an undertaking requiring hundreds of years of my own time. Since I’m only human I thought I’d rather learn about programming languages and compilers by creating a language that has a very simple syntax, literally just two parts per statement. An example set of statements that would allow you to create an integer variable and initialise it to the value 1928 would be:

value 1928

assign_to num1

Keyword Reference

Keyword	Description	Example
value	Declare an value to be used in some context, e.g. variable declaration and initialisation.	value 1928 assign_to num1
assign_to	Assigns a value to a named variable. The value should be declared as a literal or as another variable name. The value should use the “value” keyword as a statement before the assign_to call.	value 1928 assign_to num1
call	Invokes a standard or user defined method. If the method requires arguments then one or more “param” statements need to follow the method invocation.	call fn_print param 123
param	Declares the value or variable name containing the value to be passed as an argument to the method invocation.	call fn_print param 123
//	Double forward slashes would indicate a comment line. Any text can follow this and it will be ignored by the compiler	// This is a small comment
add	Mathematical addition operation	add 1
sub	Mathematical subtraction operation	sub 1
mul	Mathematical multiplication operation	mul 5
div	Mathematical division operation	div 3
pow	Mathematical power operation	pow 2
root	Mathematical root operation	root 2
include	This keyword copies the contents of another two part file at the location where it’s used.	include “file-2.tp”

Example TwoPart Program

include "another-tp-file.tp"

call fn_print
param 123

call fn_print
param 456

call fn_print
param 789

call fn_print
param "hello world"

value 1928
assign_to num1

call fn_print
param num1

value "Adhir"
assign_to name

// you can even include files right here at this position.

include "middle-file.tp"

//print with var
call fn_print
param name

//comment

if true
call fn_branch1
ifnot true
call fn_branch2

// some weird calculation
value 2
add 2
mul 4
div 2
sub 9
pow 3
root 2
assign_to result

// pythagoras a^2 = b^2 + c^2
value 0
assign_to a

value 3
pow 2
assign_to b

value 1
pow 2
assign_to c

value b
add c
root 2
assign_to a