2KWLang

2KWLang (short for 2-Keyword Language) is an esolang by User:PythonshellDebugwindow.

Syntax

There are only two keywords in this language, as the name implies, and they are import and print.

Import

To import the file named fname (must be a string) for its side effects only:

import fname;

Output

To print x with a newline:

print x;

Without a newline:

print x | "";

Read file to STDOUT

To print out the contents of the file named fname (again, must be a string):

print import fname;

Input

To get user input:

print "\n";

where n is a digit 0-9. To retrieve it once inputted:

print "\n";

where n is a digit 0-9.

Math

These operators have C-like syntax and the same precedence. 2KWLang has the following mathematical operators: +, -, *, /, %, &&, ||, &, |, !, ~, and ^.

Comparison

These operators also have C-like syntax. 2KWLang has the following comparison operators: ==, !=, >, <, >=, and <=.

Parentheses

Like in C, the ( ) parentheses/round brackets use surround notation, and they are only used for grouping

Ternary operator

Again, C-like syntax for the x ? y : z ternary operator. 0 and the empty string are considered falsy, all other values are considered truthy.

String, integer, and floating-point literals

Strings have double quotes around them:

"Hello World"

but these quotes can be escaped:

"This string has escaped \"quotes\" in it!"

Integers and floating-points are like in C:

12345
67.098

and they allow leading zeros.

Looping

2KWLang programs can import themselves, even conditionally using the ternary operator.

Examples

Hello, World!

print "Hello, World!";

Cat

print "\0";
print "\0";

Quine (maybe cheating)

print import "nameOfThisFile";

where nameOfThisFile is the name of the file being executed.

Truth-machine

Requires 3 files: main.2kwl, 1.2kwl, and 0.2kwl. main.2kwl:

print "\0";
import (("\0" == "1") ? "1.2kwl" : "0.2kwl");

1.2kwl:

print "1";
import "1.2kwl";

0.2kwl:

print "0";