# Toy interpreter for Brainf@@k
https://en.wikipedia.org/wiki/Brainfuck
Example program for trying out [driver.love](https://git.sr.ht/~akkartik/driver.love),
a programming environment for modifying programs live, without restarting
them.
This repo is an example of a [Freewheeling App](http://akkartik.name/freewheeling),
designed above all to be easy to run, easy to modify and easy to share.
## Getting started
Install [LÖVE](https://love2d.org). It's just a 5MB download, open-source and
extremely well-behaved.
[Run the app using LÖVE.](https://love2d.org/wiki/Getting_Started#Running_Games)
## Hacking
To modify it live without restarting the app each time, download [the driver
app](https://git.sr.ht/~akkartik/driver.love).
If the app being modified by the driver lives in a .love file, your changes
will go into the [save directory](https://love2d.org/wiki/love.filesystem.getSaveDirectory).
If it lives in a directory (like this repo), your changes will go straight
into the same directory.
## Keyboard shortcuts
Press `f4` to evaluate a program.
Within each editor panel:
* `ctrl+f` to find patterns within a file
* `ctrl+c` to copy, `ctrl+x` to cut, `ctrl+v` to paste
* `ctrl+z` to undo, `ctrl+y` to redo
* `ctrl+=` to zoom in, `ctrl+-` to zoom out, `ctrl+0` to reset zoom
* `alt+right`/`alt+left` to jump to the next/previous word, respectively
* mouse drag or `shift` + movement to select text, `ctrl+a` to select all
Exclusively tested so far with a US keyboard layout. If
you use a different layout, please let me know if things worked, or if you
found anything amiss: http://akkartik.name/contact
## Known issues
## Mirrors and Forks
This repo is a fork of [lines.love](http://akkartik.name/lines.html), an
editor for plain text where you can also seamlessly insert line drawings.
Its immediate upstream is [the template repo for freewheeling apps](https://git.sr.ht/~akkartik/template-live-editor).
Updates to it can be downloaded from the following mirrors:
* https://git.sr.ht/~akkartik/bf.love
* https://tildegit.org/akkartik/bf.love
* https://git.merveilles.town/akkartik/bf.love
* https://nest.pijul.com/akkartik/bf.love (using the Pijul version control system)
Further forks are encouraged. If you show me your fork, I'll link to it here.
## Feedback
[Most appreciated.](http://akkartik.name/contact) Messages, PRs, patches,
forks, it's all good.
[Some reference documentation on how to create your own apps.](reference.md)