/tython

Primary LanguagePython

TYTHON Compiler/interpreter

Description

Ironically, the exact oppisite of Python in every possible way, but the compiler is in Python anyways.

Compiled and interpreted language. Simple. Fast. Democratic.

Based on the TI-BASIC 83/84 programming language developed by Texas Instruments, but modified for general computing.

Language is statically and implicitly typed, state-based, non-functional, and not object oriented.

Tython has a minimal feature set designed to have zero bloat and place the programmer completely in control of the language.

Rules

  1. The ZEN of Tython : LESS FEATURES >> READABILITY & LINE COUNT!
  2. Variables are one letter and, optionally, one number. (e.g. X, A0, Y1)
    1. This means there are 2 * 26 * 11 = 572 unique variable names, choose wisely!
  3. All variables have an implicit type.
    1. Types include:
      1. INT (32 bit integer) (INT32, INT64, INT128)
      2. REAL (32 bit float) (REAL32, REAL64)
      3. CHAR (8 bit integer)
    2. Variables I, J, K, L, M, N, are INTEGERS. Otherwise, it is REAL.
    3. If these do not work for you, you can specify the type EXPLICITLY or use the implicit keyword to remap the implicit types for the program
    4. There is no boolean type, just integers!
    5. Any variable prefixed with an @ is automatically an vector
    6. An array is homogeneous in type
    7. Strings are represented as arrays or characters
    8. Lists are indexed with square brackets (unlike TI-83/4)
  4. There are litterally no loops; but there are GOTO statements!
  5. No functions! Only Programs and labels! You can envoke a label with a goto statement or execute a program
    1. The compiler will check for circular executions, don't even try. The callstack is also limited to 100. Any and all recursion is strictly prohibited!!!
  6. The langauge will not depend on any way choice of code format besides newlines.
    1. If statements are paired with an 'end' keyword
  7. THE STATE OF VARIABLES PERSISTS ACROSS ENVOKED PROGRAM EXECUTIONS!
    1. Tython refuses to align with either functional or object oriented programming techniques!

Ex.

# Comment
program "squareroot" #name of program. Must match the filename.

# x = (-b +- sqrt(b**2 - 4*a*c)) / 2a
prompt a #Prompt a
prompt b #Prompt b
prompt c #Prompt c

v = sqrt(b**2 - 4*a*c)
o1 = (-b + v) / (2*a)
o2 = (-b - v) / (2*a)

disp "x1=", o1 #Display o2 in terminal
disp "x2=", o2 #Display o3 in terminal

# A simple bank system
# @RESERVED i, B
program "bank"
version 1 2 3

lbl M
disp "1. View balance"
disp "2. Withdraw"
disp "3. Deposit"

prompt i #Prompt selection
if i=1 then
goto M1
if i=2 then
goto M2
if i=3 then
goto M3

lbl M1
INT32 B
disp "Your current balance is " B/100 "." B%100
goto M

lbl M2
INT32 D
disp "How much do you want to deposit?"
prompt D
B = B + D
goto M

lbl M3
INT32 D
disp "How much do you want to withdraw?"
prompt D
B = B - D
goto M


# program to compute fibonacii sequence
program "fibonacii_sequence"

INT32 @I
dim(I) = 20
@I[0] = 1
@I[1] = 1
i = 2
lbl A
@I[i] = @I[i-1] + @I[i-2]
i = i + 1
if i < 20 then
goto A

Installation

This package requires some compiled binaries in order to emulate the virtual machine. Steps:

  1. Navigate to tython_compiler/c_dlls
  2. run ./compile.sh or bash compile.sh if on bash. Otherwise, execute the scripts natively on your shell.