ivy - Warm, friendly modal text editor for the terminal.

Age	Commit message (Collapse)	Author
56 min.	refactor screen drawing to be invokable row by row HEAD main	Irene Knapp
	and use it to make scrolling efficient in terms of redraws! yay! Force-Push: yes Change-Id: Ib6de76f6ca1603c4e7a0f11e9a4f2371a145b7c6
112 min.	scrolling now uses the terminal scroll feature when possible	Irene Knapp
	it doesn't redraw the newly blank lines in that case though, so it's broken, but that can come next Force-Push: yes Change-Id: I52c90249852331e5f9bbcdee4d645ee33e4c671a
4 hours	there is now a concept of a scroll-top	Irene Knapp
	scrolling is handled in the most naive possible way, which is way too much redrawing and also doesn't have the desired centering behavior for longer movements Force-Push: yes Change-Id: I611b02d25553873a93f2c4c17e303356735581f7
5 hours	deal with broken UTF8 even better	Irene Knapp
	now it should self-synchronize properly if there's something really weird happening also, that code is all refactored into encodings.rs Force-Push: yes Change-Id: I8bd9682448fc309b7aa6c0513e9b94cb5a4ace11
6 hours	implement the 0 and $ commands	Irene Knapp
	Force-Push: yes Change-Id: I0a056ed4e021124f05e56c893d47c3b3dc5f3cd7
7 hours	count_lines() wasn't handling empty lines properly	Irene Knapp
	remember, they can occur in the middle, not just at the end! heh Force-Push: yes Change-Id: I52d2c29e40597c0bfc9484fec5cef7f13612cb19
8 hours	handling of the neutral column is implemented fully now	Irene Knapp
	this is what POSIX seems to call the "current column", but that's a confusing name... POSIX also seems to think in terms of the cursor's actual position not being a thing that persists, but that feels wrong so here it's a separate concept. Force-Push: yes Change-Id: I0c3a171ebdf9ca74a1a8faaeeb85cd7d2a37b2ff
8 hours	hjkl movement is now capped to the dimensions of the buffer... sort of	Irene Knapp
	it only checks in the direction of movement, which means it's possible to get outside the text by going up or down off a longer line, onto a shorter one also, non-printing characters are passed through raw and treated as being exactly one cell wide, and both those things will need to change at some point (try editing a file with color codes in it) Force-Push: yes Change-Id: Ie3e82b45a0dba3e52c06c775652d95335242c39b
9 hours	added a handle_movement() abstraction	Irene Knapp
	right now, the main thing it takes care of is checking whether it's actually necessary to move the cursor, and doing it. the hope is to be very parsimonious of bandwidth, like to 1980s standards, and to also be deliberate about making sure the portions of the screen that are redrawn follow logically from the user's actions. this is meant to help in high-latency situations as well as with screen readers. also, it just feels right. Force-Push: yes Change-Id: Ib26ae484a34e0aaa0e8382f5ad4966226bada223
9 hours	the hjkl commands are partly implemented	Irene Knapp
	it's now possible to move the cursor around the screen, but it doesn't interact with the buffer in any way. in particular it isn't forced to stay within the buffer, it just moves wherever. Force-Push: yes Change-Id: If56d044b97c761a2070ffc2cc3f541b35ef9965f
10 hours	add a loop that reads a character of user input	Irene Knapp
	(right now it exits after the first time, doing nothing) Force-Push: yes Change-Id: I89f8d3d298e6a42e373e536121e6b434e30ef66f
10 hours	implement abstractions Terminal and Buffer	Irene Knapp
	Terminal encapsulates most of the already-existing logic for drawing things Buffer corresponds directly to the user-facing concept of a buffer. it has facilities for creating a new empty one; for loading itself from a file; and for scanning its contents to compute the offsets to the start of each line. at the moment, the assumption is that buffers are always entirely in-memory, but this will not always be true, so significant attention has been paid to aysnc behavior. there's locks in a few places which may or may not turn out to be how it ultimately works, but they seem like a credible first attempt. the draw() routine is the heart of what exists so-far, doing all the really interesting stuff. Force-Push: yes Change-Id: Ifddc5debb12628233113c0bd6db3ea8cf10e6a5a
14 hours	initial commit; draws the traditional tildes	Irene Knapp
	Force-Push: yes Change-Id: I18ada127a4c78e5ac74f5002ed3716c53a1e141b