O Language: Getting Started (Part 2)

Installation

Click download link and select your own system or package after setup your development environment path to extracted path. If you need to If you want to do development, you can install golang and extract the codes with this command;

go get -v github.com/olproject/olang

and run

olang(.exe) (-r) (-d=true [debug mode])

Thats it.

Files

Olang files is to simple. Default file extension “.ola”. Let’s start by examining the programming language example.

def hello = fn(name){
  return "Hello, "+name+"! Welcome to O-lang!"
}

def result = hello("Oytun")
show(result)

Run:

$ chmod a+x test.ol
$ ./test.ol

or

$ olang test.ol

Output:

Hello, Oytun! Welcome to Olang

Loading Modules

Loading modules is too simple.

hello.ol (as hello module):

def hello = fn(name){
 show("Hello, "+name+"! Welcome to Olang!")
}

load.ol (main file):

#!/usr/bin/env olang
load "hello.ol"

def name = "Oytun";
hello(name);

Run:

$ olang load.ol

Output:

Hello, Oytun! Welcome to Olang!

System Casts;

System casts is general syntax use for IRL (In Real Life).

Definitions

Simple casting definition; def something = something;

Hash

Simple casting hashes;

def pyramid = {"x":10, "y":10, "z":10}
pyramid["x"]
# => 10

Array

Simple casting arrays;

def triangle = [10,20,30]
triangle[1]
# => 10

Integer

Simple casting integer;

def zero = 0
# => 0

String

Simple casting string;

def name = "Oytun"
# => "Oytun"

Functions

Simple casting functions;

def sum = fn(x,y){ return x+y; }
 sum(10,6)
 # => 16

Process

Simple casting system processes;

proc procname "command" "work path" ["arg1","arg2"]

Socket

Simple casting system sockets;

sock socketname "type" "port" "ip"

Are you ready to write a code. Learn all the structure variables. We’ll go a little deeper in the other article.