vaxis: implement bracketed paste

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

README.md

@@ -19,7 +19,7 @@ Contributions are welcome.
 | ------------------------------ | :---: | :------: | :-------: |
 | RGB                            |  ✅   |    ✅    |    ✅     |
 | Hyperlinks                     |  ✅   | planned  |    ❌     |
-| Bracketed Paste                |  ✅   | planned  |    ❌     |
+| Bracketed Paste                |  ✅   |    ✅    |    ❌     |
 | Kitty Keyboard                 |  ✅   |    ✅    |    ✅     |
 | Styled Underlines              |  ✅   |    ✅    |    ✅     |
 | Mouse Shapes (OSC 22)          |  ✅   | planned  |    ❌     |

src/ctlseqs.zig

@@ -14,9 +14,14 @@ pub const sixel_geometry_query = "\x1b[?2;1;0S";
 pub const sync_set = "\x1b[?2026h";
 pub const sync_reset = "\x1b[?2026l";
 
+// unicode
 pub const unicode_set = "\x1b[?2027h";
 pub const unicode_reset = "\x1b[?2027l";
 
+// bracketed paste
+pub const bp_set = "\x1b[?2004h";
+pub const bp_reset = "\x1b[?2004l";
+
 // Key encoding
 pub const csi_u_push = "\x1b[>{d}u";
 pub const csi_u_pop = "\x1b[<u";

src/vaxis.zig

@@ -500,6 +500,16 @@ pub fn Vaxis(comptime T: type) type {
                 .{title},
             );
         }
+
+        // turn bracketed paste on or off. An event will be sent at the
+        // beginning and end of a detected paste. All keystrokes between these
+        // events were pasted
+        pub fn bracketedPaste(self: *Self, enable: bool) !void {
+            if (self.tty == null) return;
+            const seq = if (enable) ctlseqs.bp_set else ctlseqs.bp_reset;
+            _ = try self.tty.?.write(seq);
+            try self.tty.?.flush();
+        }
     };
 }