# Live apps that can have text editor widgets

A template repo for building live apps that juggle text editor widgets. The
editors support copy/paste, search, infinite undo, etc. You can't quite modify
editor functionality live (yet?).

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.
Designed above all to be easy to modify and give you early warning if your
modifications break something.

## Invocation

To run from the terminal, [pass this directory to LÖVE](https://love2d.org/wiki/Getting_Started#Running_Games),
optionally with a file path to edit.

Alternatively, turn it into a .love file you can double-click on:
```
$ zip -r /tmp/text.love *.lua
```

By default, it reads/writes the file `lines.txt` in your default
user/home directory (`https://love2d.org/wiki/love.filesystem.getUserDirectory`).

To open a different file, drop it on the app window.

## Keyboard shortcuts

While editing text:
* `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

* No support yet for Unicode graphemes spanning multiple codepoints.

* No support yet for right-to-left languages.

* Undo/redo may be sluggish in large files. Large files may grow sluggish in
  other ways. Works well in all circumstances with files under 50KB.

* If you kill the process, say by force-quitting because things things get
  sluggish, you can lose data.

* Long wrapping lines can't yet distinguish between the cursor at end of one
  screen line and start of the next, so clicking the mouse to position the
  cursor can very occasionally do the wrong thing.

* Can't scroll while selecting text with mouse.

* No scrollbars yet. That stuff is hard.

## Mirrors and Forks

This repo is a fork of lines.love at [http://akkartik.name/lines.html](http://akkartik.name/lines.html).
Its immediate upstream is [text.love](https://codeberg.org/akkartik/text.love),
a version without support for line drawings. Updates to it can be downloaded
from:

* https://codeberg.org/akkartik/template-live-editor.love

Further forks are encouraged. If you show me your fork, I'll link to it here.

## Feedback

[Most appreciated.](http://akkartik.name/contact)