ctlseqs: add initial ctlseqs

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>

src/ctlseqs.zig

@@ -0,0 +1,16 @@
+// Queries
+pub const primary_device_attrs = "\x1b[c";
+pub const tertiary_device_attrs = "\x1b[=c";
+pub const xtversion = "\x1b[>0q";
+
+// Key encoding
+pub const csi_u = "\x1b[?u";
+pub const csi_u_push = "\x1b[>{d}u";
+pub const csi_u_pop = "\x1b[<u";
+
+// Cursor
+pub const cup = "\x1b[{d};{d}H";
+
+// alt screen
+pub const smcup = "\x1b[?1049h";
+pub const rmcup = "\x1b[?1049l";

src/main.zig

@@ -16,6 +16,7 @@ test {
     _ = @import("Tty.zig");
     _ = @import("Window.zig");
     _ = @import("cell.zig");
+    _ = @import("ctlseqs.zig");
     _ = @import("queue.zig");
     _ = @import("vaxis.zig");
 }