sitelen ilo

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sitelen ilo
Paradigm(s) imperative, functional
Designed by User:jan Gamecuber
Appeared in 2022
Memory system variable-based
Computational class Turing complete
Reference implementation Unimplemented
Influenced by toki pona, toki pi ilo nanpa, sona
File extension(s)

sitelen ilo is a programming language based on toki pona (made with the knowledge of toki pi ilo nanpa and sona). It was made by jan Gamecuber.


Newlines mark the next command (no semicolons) and blocks are indented. Comments start with namako.


Variable assign

This is done with

 VarName li VarType VarValue 

Data Types

There are four types. These are nanpa (double), nimi (string), kulupu (list) and lupa (null).

Control Flow Statements

If-Then statements are made using

 Condition la ni 

and a block on the next line that is only executed if the condition is true. Labels are made with

 ma ni li LabelName 

and gone to with

 tawa LabelName 

I/O and libraries

To get input, use

 sina Prompt 

and to print use

 toki Value 

. To import a library, use

 lukin LibraryName 


Defining a function is done with

 sin Name pi Param1, Param2 ... 

and a block storing the code. Calling is done with

 pali Name pi Param1, Param2 ... 

. Return statements are

 sitelen ReturnValue 



A struct is started with

 poki StructName li ni: 

and properties are written to within the definition as a regular variable assignment. To access a property, name the property and then name the struct it is a part of.

Extra details

Math and conditions are handled by jan Emalan's numbering system, but with taso as bitwise nand. Lists work with indices like in python, but to append or insert to a list, you just use the index where you want it to go.

Prebuilt functions


With 1 arg, suli takes the length of that arg in bits (or for lists, list entries) (null is 1). With 2 args, suli returns the larger/longer.


With no args, nasa returns a random float from 0-1. With 1 arg, nasa returns a random element or byte of the arg. With 2 args, nasa is random.randrange() from python.