# Deon programming language V0.9.5 My computer programming language made with LEX/YACC written in C. (interpreted) # Downloads
Win-32: download Win-64: download Linux-32: download Linux-64: download # Hello World.
Hello world in Deon. ``` def main: { print["hello world"]; }; call main; ``` # Variables
- Variables support "type juggling" where types are assumed at runtime. - Variables can be assigned to each other even if they are different types. ``` /* main function */ def main: { my_var = 121231; /* int */ print[my_var]; my_var = -123.122; /* double */ print[my_var]; my_var = "cool string"; /* null terminating string */ print[my_var]; my_var = 'c'; /* char */ print[my_var]; my_var = { print[ "hello world" ]; }; /* lambda function */ call my_var; }; call main; ``` # Expressions - As ov v0.9.5 expressions are only supported for int types, I need to recode the entire expression parsing system to support up to doubles. ``` def main: { var = 10 + (5 * 2 / (11 % 2)); /* should print 20 */ print[var]; }; call main; ``` # Scope - As of v0.9.5 there is not scope inside of this programming language. ``` /* changes var from 10 to 100 */ def another_function: { var = 100; }; def main: { var = 10; /* should print 10 */ print[var]; call another_function; /* should print 100 */ print[var]; }; call main; ``` # Logic
- while loops are if statements - As of version 0.9.5, logic conditions must only be variables. ### If statements As stated above, if statement conditions must be a variable. ``` def main: { var = 1; if[var]: /* condition must be a variable */ { print["var was 1"]; var = 0; }; if[var]: { print["this wont print! (or shouldnt)"]; }; }; call main; ``` ### While loop ``` def main: { var = 1; /* loop that runs forever */ while[var]: { print["this will run forever"]; print["it also wont stack overflow, so dont worry"]; }; }; call main; ``` # Functions - Functions can be defined as variables (lambda) or defined normally. ``` def my_function: { some_function = { print["hello world"]; }; call some_function; }; call my_function; ``` # Redefinitions - As of v0.9.5 everything in this programming language can be redefined. That means everything, including the function that is currently being executed. ``` def main: { main = { print["i just redefined main"]; }; }; call main; call main; ```