LangKama

LangKama is a turingretard-complete programming language designed for shits and giggles. Below you'll find detailed instructions on how to set up, build, and use LangKama, as well as run tests to ensure everything is working as expected.

Example

The following is a typical LangKama script:

let me cook factorial(n) {
  hear me out val is 0.

  big if true (n = 0) {
    val is 1.
  } sike {
    val is n * factorial(n - 1).
  }

  reda val.
}

loncina(factorial(5)). bs Outputs: 120

More examples can be found inside of the langkama directory.

LangKama has an online interpreter to play with.

Build

Before diving into LangKama, you need to prepare your environment by installing necessary dependencies.

1. Install Dependencies: Open your terminal and navigate to the root directory of your LangKama project. Then, run one of the following commands to install all required dependencies:

     npm i
     # or, if you prefer using pnpm (which you should)
     pnpm i

2. Build the Project: After the installation of dependencies, the project should automatically build. If, for any reason, the build process does not complete successfully, you can manually initiate the build by running:

     npm run build
     # or, using pnpm
     pnpm build

Use

LangKama can be utilized in two primary ways: through its CLI for immediate tasks, or via its API for integration with other projects or embedding within applications.

LangKama CLI

The CLI provides a straightforward method to execute LangKama scripts directly from your terminal. To use it, simply run the bin/langkama.js or use the npm pre-configured npm script.

npm start
# or, using pnpm
pnpm start

LangKama CLI offers flexible execution modes to cater to different development needs. You can either execute a LangKama script from a file by passing the file path as an argument or enter an interactive mode with a Read-Eval-Print Loop (REPL) by not providing any arguments. Below are the details on how to use both modes.

Interpreting a Script File

To run a LangKama script stored in a file, simply pass the path to the file as an argument when launching your application. The syntax for running a script is as follows:

npm start scripts/math.nkm
# or, using pnpm
pnpm start scripts/math.nkm

Replace scripts/math.nkm with the actual path to your LangKama script file. Upon execution, the application will interpret the script within the file..

Launching the REPL

If you prefer to work interactively or wish to test LangKama expressions on the fly, you can launch the application without any arguments to enter the REPL mode. In this mode, you can input LangKama commands directly and see the results immediately. To enter REPL mode.

npm start
# or, using pnpm
pnpm start

LangKama API

For those looking to incorporate LangKama's functionality into their projects, the API is accessible after a successful project build. You can find it at dist/langkama.cjs.

import { LangKama } from './main';



const code = `(1 + 2) * 3`;
const compiler = new LangKama();

compiler
  .on(LangKamaEvent.Success, result => {
    console.info('LangKama script interpreted!');
    console.log({ result });
  })
  .on(LangKamaEvent.Error, error => { console.error(error) })
  .on(LangKamaEvent.Stdout, stdout => { console.info(stdout) })
  .on(LangKamaEvent.Lexer, () => console.info(`Tokenizing...`))
  .on(LangKamaEvent.Parser, tokens => console.info(`Parsing...`))
  .on(LangKamaEvent.Interpreter, () => console.info(`Interpreting...`))
  .interpret(code);

Test

To ensure your LangKama setup is functioning correctly, you can run unit tests via:

npm test
# or, using pnpm
pnpm test

Takeaway

Use pnpm. You're missing out.