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parse: ground parser complete

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Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
This commit is contained in:
Tim Culverhouse 2024-01-18 20:30:42 -06:00
parent d22b2a89f3
commit 27548f7f9d
1 changed files with 22 additions and 22 deletions
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38
src/Tty.zig
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@ -74,7 +74,7 @@ pub fn run(
ss3, ss3,
}; };
const state: State = .ground; var state: State = .ground;
// Set up fds for polling // Set up fds for polling
var pollfds: [2]std.os.pollfd = .{ var pollfds: [2]std.os.pollfd = .{
@ -97,28 +97,28 @@ pub fn run(
const b = buf[i]; const b = buf[i];
switch (state) { switch (state) {
.ground => { .ground => {
switch (b) { const key: ?Key = switch (b) {
0x00 => { // ctrl+@ 0x00 => Key{ .codepoint = '@', .mods = .{ .ctrl = true } },
0x01...0x1A => Key{ .codepoint = b + 0x60, .mods = .{ .ctrl = true } },
0x1B => escape: {
// NOTE: This could be an errant escape at the end
// of a large read. That is _incredibly_ unlikely
// given the size of read inputs and our read buffer
if (i == (n - 1)) {
const event = Key{ const event = Key{
.codepoint = '@', .codepoint = Key.escape,
.mods = .{ .ctrl = true },
}; };
app.postEvent(.{ .key_press = event }); break :escape event;
}
state = .escape;
break :escape null;
}, },
0x01...0x1A => { // ctrl+[a-z] 0x20...0x7E => Key{ .codepoint = b },
const event = Key{ 0x7F => Key{ .codepoint = Key.backspace },
.codepoint = b + 0x60, // turn it lowercase else => Key{ .codepoint = b },
.mods = .{ .ctrl = true },
}; };
app.postEvent(.{ .key_press = event }); if (key) |k| {
}, app.postEvent(.{ .key_press = k });
0x20...0x7E => { // ascii
const event = Key{
.codepoint = @intCast(b),
};
app.postEvent(.{ .key_press = event });
},
else => {},
} }
}, },
else => {}, else => {},