Import tmux, a terminal multiplexor allowing (among other things) a single

terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

1 files changed, 227 insertions, 0 deletions

diff --git a/input-keys.c b/input-keys.c
new file mode 100644
index 00000000..24c0bbaa
--- /dev/null
+++ b/input-keys.c
@@ -0,0 +1,227 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+struct input_key_ent {
+	int		 key;
+	const char	*data;
+
+	int		 flags;
+#define INPUTKEY_KEYPAD 0x1	/* keypad key */
+#define INPUTKEY_CURSOR 0x2	/* cursor key */
+#define INPUTKEY_CTRL 0x4	/* may be modified with ctrl */
+#define INPUTKEY_XTERM 0x4	/* may have xterm argument appended */
+};
+
+struct input_key_ent input_keys[] = {
+	/* Function keys. */
+	{ KEYC_F1,     "\033OP",   INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F2,     "\033OQ",   INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F3,     "\033OR",   INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F4,     "\033OS",   INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F5,     "\033[15~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F6,     "\033[17~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F7,     "\033[18~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F8,     "\033[19~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F9,     "\033[20~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F10,    "\033[21~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F11,    "\033[23~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F12,    "\033[24~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F13,    "\033[25~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F14,    "\033[26~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F15,    "\033[28~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F16,    "\033[29~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F17,    "\033[31~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F18,    "\033[32~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F19,    "\033[33~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_F20,    "\033[34~", INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_IC,     "\033[2~",  INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_DC,     "\033[3~",  INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_HOME,   "\033[1~",  INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_END,    "\033[4~",  INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_NPAGE,  "\033[6~",  INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_PPAGE,  "\033[5~",  INPUTKEY_CTRL|INPUTKEY_XTERM },
+	{ KEYC_BTAB,   "\033[Z",   INPUTKEY_CTRL },
+
+	/* Arrow keys. Cursor versions must come first. */
+	{ KEYC_ADDCTL(KEYC_UP),    "\033Oa", 0 },
+	{ KEYC_ADDCTL(KEYC_DOWN),  "\033Ob", 0 },
+	{ KEYC_ADDCTL(KEYC_RIGHT), "\033Oc", 0 },
+	{ KEYC_ADDCTL(KEYC_LEFT),  "\033Od", 0 },
+
+	{ KEYC_ADDSFT(KEYC_UP),    "\033[a", 0 },
+	{ KEYC_ADDSFT(KEYC_DOWN),  "\033[b", 0 },
+	{ KEYC_ADDSFT(KEYC_RIGHT), "\033[c", 0 },
+	{ KEYC_ADDSFT(KEYC_LEFT),  "\033[d", 0 },
+
+	{ KEYC_UP,     "\033OA",   INPUTKEY_CURSOR },
+	{ KEYC_DOWN,   "\033OB",   INPUTKEY_CURSOR },
+	{ KEYC_RIGHT,  "\033OC",   INPUTKEY_CURSOR },
+	{ KEYC_LEFT,   "\033OD",   INPUTKEY_CURSOR },
+
+	{ KEYC_UP,     "\033[A",   0 },
+	{ KEYC_DOWN,   "\033[B",   0 },
+	{ KEYC_RIGHT,  "\033[C",   0 },
+	{ KEYC_LEFT,   "\033[D",   0 },
+
+	/* Keypad keys. Keypad versions must come first. */
+	{ KEYC_KP0_1,  "/", INPUTKEY_KEYPAD },
+	{ KEYC_KP0_2,  "*", INPUTKEY_KEYPAD },
+	{ KEYC_KP0_3,  "-", INPUTKEY_KEYPAD },
+	{ KEYC_KP1_0,  "7", INPUTKEY_KEYPAD },
+	{ KEYC_KP1_1,  "8", INPUTKEY_KEYPAD },
+	{ KEYC_KP1_2,  "9", INPUTKEY_KEYPAD },
+	{ KEYC_KP1_3,  "+", INPUTKEY_KEYPAD },
+	{ KEYC_KP2_0,  "4", INPUTKEY_KEYPAD },
+	{ KEYC_KP2_1,  "5", INPUTKEY_KEYPAD },
+	{ KEYC_KP2_2,  "6", INPUTKEY_KEYPAD },
+	{ KEYC_KP3_0,  "1", INPUTKEY_KEYPAD },
+	{ KEYC_KP3_1,  "2", INPUTKEY_KEYPAD },
+	{ KEYC_KP3_2,  "3", INPUTKEY_KEYPAD },
+	{ KEYC_KP3_3,  "\n", INPUTKEY_KEYPAD }, /* this can be CRLF too? */
+	{ KEYC_KP4_0,  "0", INPUTKEY_KEYPAD },
+	{ KEYC_KP4_2,  ".", INPUTKEY_KEYPAD },
+	{ KEYC_KP0_1,  "\033Oo", 0 },
+	{ KEYC_KP0_2,  "\033Oj", 0 },
+	{ KEYC_KP0_3,  "\033Om", 0 },
+	{ KEYC_KP1_0,  "\033Ow", 0 },
+	{ KEYC_KP1_1,  "\033Ox", 0 },
+	{ KEYC_KP1_2,  "\033Oy", 0 },
+	{ KEYC_KP1_3,  "\033Ok", 0 },
+	{ KEYC_KP2_0,  "\033Ot", 0 },
+	{ KEYC_KP2_1,  "\033Ou", 0 },
+	{ KEYC_KP2_2,  "\033Ov", 0 },
+	{ KEYC_KP3_0,  "\033Oq", 0 },
+	{ KEYC_KP3_1,  "\033Or", 0 },
+	{ KEYC_KP3_2,  "\033Os", 0 },
+	{ KEYC_KP3_3,  "\033OM", 0 },
+	{ KEYC_KP4_0,  "\033Op", 0 },
+	{ KEYC_KP4_2,  "\033On", 0 },
+};
+
+/* Translate a key code from client into an output key sequence. */
+void
+input_key(struct window_pane *wp, int key)
+{
+	struct input_key_ent   *ike;
+	u_int			i;
+	char			ch;
+	size_t			dlen;
+	int			xterm_keys;
+
+	log_debug2("writing key 0x%x", key);
+
+	if (key != KEYC_NONE && KEYC_REMOVEESC(key) < KEYC_OFFSET) {
+		if (KEYC_ISESC(key))
+			buffer_write8(wp->out, '\033');
+		buffer_write8(wp->out, (uint8_t) KEYC_REMOVEESC(key));
+		return;
+	}
+
+	for (i = 0; i < nitems(input_keys); i++) {
+		ike = &input_keys[i];
+
+		if ((ike->flags & INPUTKEY_KEYPAD) &&
+		    !(wp->screen->mode & MODE_KKEYPAD))
+			continue;
+		if ((ike->flags & INPUTKEY_CURSOR) &&
+		    !(wp->screen->mode & MODE_KCURSOR))
+			continue;
+
+		if (KEYC_ISESC(key) && KEYC_ADDESC(ike->key) == key)
+			break;
+		if (KEYC_ISSFT(key) && KEYC_ADDSFT(ike->key) == key)
+			break;
+		if (KEYC_ISCTL(key) && KEYC_ADDCTL(ike->key) == key) {
+			if (ike->flags & INPUTKEY_CTRL)
+				break;
+		}
+		if (ike->key == key)
+			break;
+	}
+	if (i == nitems(input_keys)) {
+		log_debug2("key 0x%x missing", key);
+		return;
+	}
+	dlen = strlen(ike->data);
+
+	log_debug2("found key 0x%x: \"%s\"", key, ike->data);
+
+	/*
+	 * If in xterm keys mode, work out and append the modifier as an
+	 * argument.
+	 */
+	xterm_keys = options_get_number(&wp->window->options, "xterm-keys");
+	if (xterm_keys && ike->flags & INPUTKEY_XTERM) {
+		ch = '\0';
+		if (KEYC_ISSFT(key) && KEYC_ISESC(key) && KEYC_ISCTL(key))
+			ch = '8';
+		else if (KEYC_ISESC(key) && KEYC_ISCTL(key))
+			ch = '7';
+		else if (KEYC_ISSFT(key) && KEYC_ISCTL(key))
+			ch = '6';
+		else if (KEYC_ISCTL(key))
+			ch = '5';
+		else if (KEYC_ISSFT(key) && KEYC_ISESC(key))
+			ch = '4';
+		else if (KEYC_ISESC(key))
+			ch = '3';
+		else if (KEYC_ISSFT(key))
+			ch = '2';
+		if (ch != '\0') {
+			buffer_write(wp->out, ike->data, dlen - 1);
+			buffer_write8(wp->out, ';');
+			buffer_write8(wp->out, ch);
+			buffer_write8(wp->out, ike->data[dlen - 1]);
+		} else
+			buffer_write(wp->out, ike->data, dlen);
+		return;
+	}
+
+	/*
+	 * Not in xterm mode. Prefix a \033 for escape, and set bit 5 of the
+	 * last byte for ctrl.
+	 */
+	if (KEYC_ISESC(key))
+		buffer_write8(wp->out, '\033');
+	if (KEYC_ISCTL(key) && ike->flags & INPUTKEY_CTRL) {
+		buffer_write(wp->out, ike->data, dlen - 1);
+		buffer_write8(wp->out, ike->data[dlen - 1] ^ 0x20);
+		return;
+	}
+	buffer_write(wp->out, ike->data, dlen);
+}
+
+/* Handle input mouse. */
+void
+input_mouse(struct window_pane *wp, u_char b, u_char x, u_char y)
+{
+	if (wp->screen->mode & MODE_MOUSE) {
+		buffer_write(wp->out, "\033[M", 3);
+		buffer_write8(wp->out, b + 32);
+		buffer_write8(wp->out, x + 33);
+		buffer_write8(wp->out, y + 33);
+	}
+}