Check if image is still in terminal's memory

[freref]

Can I use libvaxis to check if an image is still in terminal's memory using its id?

I think it comes down to sending this terminal command <ESC>_Ga=q,i=<image_id><ESC>\ and check for response:

• <ESC>_Gi=<id>;OK<ESC>\ if the image exists in memory
• <ESC>_Gi=<id>;ENOENT:<error message><ESC>\ if the image doesn't exist

[rockorager]

Not currently, but we could add support for this in the parser + add a new event. Do you want to work on that one?

[freref]

I would love to take a jab at it. Could you give me some pointers on where this would make the most sense to implement?

[rockorager]

You'll need to make some new event to describe the result of parsing: https://github.com/rockorager/libvaxis/blob/main/src/event.zig

Then, in the parser you will need to parse the actual sequence into that event struct:

libvaxis/src/Parser.zig

Lines 177 to 200 in bcc1d02

	inline fn parseApc(input: []const u8) Result {
	if (input.len < 3) {
	return .{
	.event = null,
	.n = 0,
	};
	}
	const end = std.mem.indexOfScalarPos(u8, input, 2, 0x1b) orelse return .{
	.event = null,
	.n = 0,
	};
	const sequence = input[0 .. end + 1 + 1];
	switch (input[2]) {
	'G' => return .{
	.event = .cap_kitty_graphics,
	.n = sequence.len,
	},
	else => return .{
	.event = null,
	.n = sequence.len,
	},
	}
	}

sequence will contain the entire escape sequence for you to parse (including the \x1b_G prefix, and the \x1b\ terminator)

[freref]

Okay, thank you