feat(term/ansi): add kitty and ctrl sequences

exp/term/ansi/ctrl/ctrl.go

@@ -0,0 +1,17 @@
+package ctrl
+
+// RequestXTVersion is a control sequence that requests the terminal's XTVERSION. It responds with a DSR sequence identifying the version.
+//
+//	CSI > Ps q
+//	DCS > | text ST
+//
+// See https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-PC-Style-Function-Keys
+const RequestXTVersion = "\x1b[" + ">0q"
+
+// RequestPrimaryDeviceAttributes is a control sequence that requests the
+// terminal's primary device attributes (DA1).
+//
+//	CSI c
+//
+// See https://vt100.net/docs/vt510-rm/DA1.html
+const RequestPrimaryDeviceAttributes = "\x1b[" + "c"

exp/term/ansi/kitty/kitty.go

@@ -0,0 +1,51 @@
+package kitty
+
+import "strconv"
+
+// Kitty keyboard protocol progressive enhancement flags.
+// See: https://sw.kovidgoyal.net/kitty/keyboard-protocol/#progressive-enhancement
+const (
+	DisambiguateEscapeCodes = 1 << iota
+	ReportEventTypes
+	ReportAlternateKeys
+	ReportAllKeys
+	ReportAssociatedKeys
+
+	AllFlags = DisambiguateEscapeCodes | ReportEventTypes | ReportAlternateKeys | ReportAllKeys | ReportAssociatedKeys
+)
+
+// Request is a sequence to request the terminal Kitty keyboard protocol
+// enabled flags.
+//
+// See: https://sw.kovidgoyal.net/kitty/keyboard-protocol/
+const Request = "\x1b[?u"
+
+// Push returns a sequence to push the given flags to the terminal Kitty
+// Keyboard stack.
+//
+//	CSI > flags u
+//
+// See https://sw.kovidgoyal.net/kitty/keyboard-protocol/#progressive-enhancement
+func Push(flags int) string {
+	var f string
+	if flags > 0 {
+		f = strconv.Itoa(flags)
+	}
+
+	return "\x1b" + "[" + ">" + f + "u"
+}
+
+// Pop returns a sequence to pop n number of flags from the terminal Kitty
+// Keyboard stack.
+//
+//	CSI < flags u
+//
+// See https://sw.kovidgoyal.net/kitty/keyboard-protocol/#progressive-enhancement
+func Pop(n int) string {
+	var num string
+	if n > 0 {
+		num = strconv.Itoa(n)
+	}
+
+	return "\x1b" + "[" + "<" + num + "u"
+}