More work on making Screen native

kitty/control-codes.h

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+/*
+ * control_codes.h
+ * Copyright (C) 2016 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#pragma once
+
+// Space
+#define SP  ' '
+
+// *Null*: Does nothing.
+#define NUL 0
+
+// *Bell*: Beeps.
+#define BEL 0x07
+
+// *Backspace*: Backspace one column, but not past the begining of the
+// line.
+#define BS 0x08
+
+// *Horizontal tab*: Move cursor to the next tab stop, or to the end
+// of the line if there is no earlier tab stop.
+#define HT 0x09
+
+// *Linefeed*: Give a line feed, and, if :data:`pyte.modes.LNM` (new
+// line mode) is set also a carriage return.
+#define LF 10
+
+// *Vertical tab*: Same as :data:`LF`.
+#define VT 0x0b
+// *Form feed*: Same as :data:`LF`.
+#define FF 0x0c
+
+// *Carriage return*: Move cursor to left margin on current line.
+#define CR 13
+
+// *Shift out*: Activate G1 character set.
+#define SO 0x0e
+
+// *Shift in*: Activate G0 character set.
+#define SI 0x0f
+
+// *Cancel*: Interrupt escape sequence. If received during an escape or
+// control sequence, cancels the sequence and displays substitution
+// character.
+#define CAN 0x18
+// *Substitute*: Same as :data:`CAN`.
+#define SUB 0x1a
+
+// *Escape*: Starts an escape sequence.
+#define ESC 0x1b
+
+// *Delete*: Is ignored.
+#define DEL 0x7f
+
+// *Control sequence introducer*: An equivalent for ``ESC [``.
+#define CSI 0x9b
+
+// *String terminator*.
+#define ST 0x9c
+
+// *Operating system command*.
+#define OSC 0x9d