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134 lines
2.3 KiB
134 lines
2.3 KiB
# Eon programming language V0.9.6.1
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My computer programming language made with LEX/YACC written in C. (interpreted)
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# Downloads
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Supports both linux and windows, download link for current build can be found here: [download link](https://githacks.org/xerox/eon/-/tags)
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# Hello World.
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Hello world in Eon.
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```c
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__main:
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{
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print["hello world"];
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};
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```
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# Variables
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* Variables support "type juggling" where types are assumed at runtime.
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* Variables can be assigned to each other even if they are different types.
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```c
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/* main function */
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def main:
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{
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my_var = 121231; /* int */
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print[my_var];
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my_var = -123.122; /* double */
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print[my_var];
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my_var = "cool string"; /* null terminating string */
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print[my_var];
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my_var = 'c'; /* char */
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print[my_var];
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my_var = { print[ "hello world" ]; }; /* lambda function */
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call my_var;
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};
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call main;
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```
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# Expressions
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* As ov v0.9.5 expressions are only supported for int types, I need to recode the entire expression parsing system
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to support up to doubles.
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```c
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def main:
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{
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var = 10 + (5 * 2 / (11 % 2));
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/* should print 20 */
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print[var];
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};
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call main;
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```
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# Scope
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* As of v0.9.6.1 there is scope, but the scope is limited to functions. Anything inside of a function is accessable anywhere inside of that function.
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```c
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def test[a]: {
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if[a]: { print[a]; };
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};
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__main: { var = 10; print[var]; call test[var]; };
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```
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# Logic
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* As of version 0.9.5, logical conditions will evaluate the provided variable.
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### If statements
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```c
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__main:
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{
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var = 1;
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if[var]: /* condition must be a variable */
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{
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print["var was 1"];
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var = 0;
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};
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if[var]:
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{
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print["this wont print!"];
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};
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};
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```
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### While loops
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```c
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def main:
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{
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var = 1;
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/* loop that runs forever */
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while[var]:
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{
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print["this will run forever"];
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print["it also wont stack overflow, so dont worry"];
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};
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};
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call main;
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```
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# Functions
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* Functions can be defined as variables (lambda) or defined normally.
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* Functions support parameters of any amount.
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```c
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def my_function[a, b, c, d]:
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{
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some_function = {
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print["hello world"];
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};
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call some_function;
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if[a]:
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{
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if[b]:
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{
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print[c];
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print[d];
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};
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};
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};
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__main:
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{
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var = 1;
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test_string = "hello world";
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call my_function[var, var, test_string, test_string];
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};
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```
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