| Author: | Matthew O'Connor |
|---|
Build Your Own Editor is intended to be a simple set of libraries and tools for creating editor-like, console-based applications. I was inspired by kilo but wanted to learn Rust and write something that worked on both Windows and Unix consoles. This proved to be a challenge as every terminal console library that I found supported only Unix-like terminals. Inspired by Termbox I decided to write a Termbox-like library that supported both Windows and Unix consoles.
The public API of Textbox is provided in lib.rs. The library is called Textbox since I kept mistyping Termbox as Textbox. It is presently implemented as a wrapper around Termbox on Unix and with direct Windows API calls (through cloned and modified winapi-rs and wio-rs) on Windows.
view is the sample/reference user of Textbox. This file is written
using it. Eventually, I intend make view respect its name and remove
its editing capabilities - probably by providing a tool named edit. The
shared code - specifically buffers - will likely be extracted into a library
for reuse. It currently uses a line-oriented data structure to hold the text.
Inserting a character requires copying all characters to the right of the
insert point out one in the backing vector. This hasn't caused a performance
issue yet.
Current status of view:
- implemented cursor up/down/left/right
- implemented home/end
- implemented page up/down
- implemented backspace/delete/enter/tab
- all "regular characters" on my keyboard appear to work
- status bar displays file name, dirty status, column and line location and max
- save files with
Ctrl-S - quit with
Ctrl-Q(no save/dirty check) - open multiple files with
view a b c Esccloses the current file and goes to the next- all features work on Windows console and Linux shell
- virtually no error checking/handling
- opening The Majestic Million CSV - a 75 MB CSV - on a year old i7 takes a fraction of a second