From c21fc5f59b93631b85d7f1d089c24e24360a9bb2 Mon Sep 17 00:00:00 2001
From: Julian Hurst <ark@mansus.space>
Date: Thu, 5 May 2022 17:53:53 +0200
Subject: Initial commit

---
 main.ha | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 main.ha

(limited to 'main.ha')

diff --git a/main.ha b/main.ha
new file mode 100644
index 0000000..9d2dfde
--- /dev/null
+++ b/main.ha
@@ -0,0 +1,114 @@
+use libui;
+use libui::list;
+use encoding::utf8;
+use io;
+use fmt;
+use os;
+use strings;
+use unix::tty;
+
+type mainUI = struct {
+	list: list::listwidget,
+};
+
+fn globalrunehandler(ui: *libui::ttyui, r: rune) bool = {
+	if (r == 'q') {
+		return true;
+	};
+	return false;
+};
+
+fn runehandler(l: *list::listwidget, r: rune) bool = {
+	switch (r) {
+	case 'j' =>
+		list::down(l);
+	case 'k' =>
+		list::up(l);
+	case 'l' =>
+		// to print properly suspend the ui, print, then resume
+		libui::suspend(&l.ui);
+		fmt::println(l.items[l.cursor])!;
+		libui::resume(&l.ui);
+		return true;
+	case 'g' =>
+		list::top(l);
+		//l.cursor = 0;
+	case 'G' =>
+		list::bottom(l);
+		//l.cursor = len(l.items) - 1;
+	case '/' =>
+		// TODO add commandline support
+		fmt::fprintln(os::stderr, "searching")!;
+		let c = l.cursor;
+		if (list::search(l, "workspace") != c) {
+			fmt::fprintln(os::stderr, "changed")!;
+		};
+	case '\n' =>
+		// Enter seems to crash for now (compiler bug)
+		yield;
+	};
+	libui::clear(l.ui);
+	match (list::print(l)) {
+	case void =>
+		yield;
+	case let e: io::error =>
+		fmt::fprintln(os::stderr, io::strerror(e))!;
+		return true;
+	case let e: tty::error =>
+		fmt::fprintln(os::stderr, tty::strerror(e))!;
+		return true;
+	};
+	return false;
+};
+
+export fn main() void = {
+	let in = match (io::drain(os::stdin)) {
+	case let in: []u8 =>
+		yield in;
+	case let e: io::error =>
+		fmt::fatal(io::strerror(e));
+	};
+	defer free(in);
+	let sin = strings::fromutf8(in);
+	sin = strings::trim(sin, '\n');
+	let items = strings::split(sin, "\n");
+	defer free(items);
+
+	let ui = libui::init();
+	defer libui::finish(&ui);
+	let l = list::newlist(ui, items...);
+	libui::addlistener(&ui, &globalrunehandler);
+	list::addlistener(&l, &runehandler);
+	libui::clear(l.ui);
+	match (list::print(&l)) {
+	case void =>
+		yield;
+	case let e: io::error =>
+		fmt::fprintln(os::stderr, io::strerror(e))!;
+		return;
+	case let e: tty::error =>
+		fmt::fprintln(os::stderr, tty::strerror(e))!;
+		return;
+	};
+	for (true) {
+		let r = match (libui::scan(ui)) {
+		case let r: rune =>
+			yield r;
+		case utf8::invalid =>
+			fmt::fprintln(os::stderr, "Invalid utf8 sequence")!;
+			break;
+		case io::EOF =>
+			fmt::fprintln(os::stderr, "EOF")!;
+			break;
+		case let e: io::error =>
+			fmt::fprintln(os::stderr, io::strerror(e))!;
+			break;
+		};
+		if (libui::notify(&ui, r)) {
+			break;
+		};
+		if (list::notify(&l, r)) {
+			break;
+		};
+	};
+};
-- 
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