Add extension terminfo(5) capabilities for margins.

tmux.1

@@ -5565,6 +5565,8 @@ to change the cursor colour from inside
 .Bd -literal -offset indent
 $ printf '\e033]12;red\e033\e\e'
 .Ed
+.It Em \&Cmg, \&Clmg, \&Dsmg , \&Enmg
+Set, clear, disable or enable DECSLRM margins.
 .It Em \&Smol
 Enable the overline attribute.
 .It Em \&Smulx

tmux.h

@@ -254,6 +254,8 @@ enum tty_code_code {
 	TTYC_BOLD,
 	TTYC_CIVIS,
 	TTYC_CLEAR,
+	TTYC_CLMG,
+	TTYC_CMG,
 	TTYC_CNORM,
 	TTYC_COLORS,
 	TTYC_CR,
@@ -274,12 +276,14 @@ enum tty_code_code {
 	TTYC_DIM,
 	TTYC_DL,
 	TTYC_DL1,
+	TTYC_DSMG,
 	TTYC_E3,
 	TTYC_ECH,
 	TTYC_ED,
 	TTYC_EL,
 	TTYC_EL1,
 	TTYC_ENACS,
+	TTYC_ENMG,
 	TTYC_FSL,
 	TTYC_HOME,
 	TTYC_HPA,
@@ -445,11 +449,11 @@ enum tty_code_code {
 	TTYC_SITM,
 	TTYC_SMACS,
 	TTYC_SMCUP,
-	TTYC_SMOL,
 	TTYC_SMKX,
+	TTYC_SMOL,
 	TTYC_SMSO,
-	TTYC_SMULX,
 	TTYC_SMUL,
+	TTYC_SMULX,
 	TTYC_SMXX,
 	TTYC_SS,
 	TTYC_SYNC,
@@ -458,7 +462,7 @@ enum tty_code_code {
 	TTYC_U8,
 	TTYC_VPA,
 	TTYC_XENL,
-	TTYC_XT,
+	TTYC_XT
 };
 
 /* Message codes. */

tty-features.c

@@ -34,7 +34,7 @@
  *
  * Also:
  * - XT is used to decide whether to send DA and XDA;
- * - DECSLRM and DECFRA use a flag instead of capabilities;
+ * - DECFRA uses a flag instead of capabilities;
  * - UTF-8 is a separate flag on the client; needed for unattached clients.
  */
 
@@ -84,7 +84,7 @@ static const char *tty_feature_rgb_capabilities[] = {
 static struct tty_feature tty_feature_rgb = {
 	"RGB",
 	tty_feature_rgb_capabilities,
-	(TERM_256COLOURS|TERM_RGBCOLOURS)
+	TERM_256COLOURS|TERM_RGBCOLOURS
 };
 
 /* Terminal supports 256 colours. */
@@ -159,9 +159,16 @@ static struct tty_feature tty_feature_sync = {
 };
 
 /* Terminal supports DECSLRM margins. */
+static const char *tty_feature_margins_capabilities[] = {
+	"Enmg=\\E[?69h",
+	"Dsmg=\\E[?69l",
+	"Clmg=\\E[s",
+	"Cmg=\\E[%i%p1%d;%p2%ds",
+	NULL
+};
 static struct tty_feature tty_feature_margins = {
 	"margins",
-	NULL,
+	tty_feature_margins_capabilities,
 	TERM_DECSLRM
 };
 
@@ -194,6 +201,8 @@ tty_add_features(int *feat, const char *s, const char *separators)
 	char				 *next, *loop, *copy;
 	u_int				  i;
 
+	log_debug("%s: %s", __func__, s);
+
 	loop = copy = xstrdup(s);
 	while ((next = strsep(&loop, separators)) != NULL) {
 		for (i = 0; i < nitems(tty_features); i++) {

tty-term.c

@@ -61,6 +61,8 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_BOLD] = { TTYCODE_STRING, "bold" },
 	[TTYC_CIVIS] = { TTYCODE_STRING, "civis" },
 	[TTYC_CLEAR] = { TTYCODE_STRING, "clear" },
+	[TTYC_CLMG] = { TTYCODE_STRING, "Clmg" },
+	[TTYC_CMG] = { TTYCODE_STRING, "Cmg" },
 	[TTYC_CNORM] = { TTYCODE_STRING, "cnorm" },
 	[TTYC_COLORS] = { TTYCODE_NUMBER, "colors" },
 	[TTYC_CR] = { TTYCODE_STRING, "Cr" },
@@ -81,12 +83,14 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_DIM] = { TTYCODE_STRING, "dim" },
 	[TTYC_DL1] = { TTYCODE_STRING, "dl1" },
 	[TTYC_DL] = { TTYCODE_STRING, "dl" },
+	[TTYC_DSMG] = { TTYCODE_STRING, "Dsmg" },
 	[TTYC_E3] = { TTYCODE_STRING, "E3" },
 	[TTYC_ECH] = { TTYCODE_STRING, "ech" },
 	[TTYC_ED] = { TTYCODE_STRING, "ed" },
 	[TTYC_EL1] = { TTYCODE_STRING, "el1" },
 	[TTYC_EL] = { TTYCODE_STRING, "el" },
 	[TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
+	[TTYC_ENMG] = { TTYCODE_STRING, "Enmg" },
 	[TTYC_FSL] = { TTYCODE_STRING, "fsl" },
 	[TTYC_HOME] = { TTYCODE_STRING, "home" },
 	[TTYC_HPA] = { TTYCODE_STRING, "hpa" },
@@ -237,8 +241,8 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_OP] = { TTYCODE_STRING, "op" },
 	[TTYC_REV] = { TTYCODE_STRING, "rev" },
 	[TTYC_RGB] = { TTYCODE_FLAG, "RGB" },
-	[TTYC_RI] = { TTYCODE_STRING, "ri" },
 	[TTYC_RIN] = { TTYCODE_STRING, "rin" },
+	[TTYC_RI] = { TTYCODE_STRING, "ri" },
 	[TTYC_RMACS] = { TTYCODE_STRING, "rmacs" },
 	[TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" },
 	[TTYC_RMKX] = { TTYCODE_STRING, "rmkx" },
@@ -265,7 +269,7 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_U8] = { TTYCODE_NUMBER, "U8" },
 	[TTYC_VPA] = { TTYCODE_STRING, "vpa" },
 	[TTYC_XENL] = { TTYCODE_FLAG, "xenl" },
-	[TTYC_XT] = { TTYCODE_FLAG, "XT" },
+	[TTYC_XT] = { TTYCODE_FLAG, "XT" }
 };
 
 u_int

tty.c

@@ -426,7 +426,7 @@ tty_stop_tty(struct tty *tty)
 	}
 
 	if (tty_use_margin(tty))
-		tty_raw(tty, "\033[?69l"); /* DECLRMM */
+		tty_raw(tty, tty_term_string(tty->term, TTYC_DSMG));
 	tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
 
 	setblocking(tty->fd, 1);
@@ -473,7 +473,7 @@ tty_update_features(struct tty *tty)
 		tty_term_apply_overrides(tty->term);
 
 	if (tty_use_margin(tty))
-		tty_puts(tty, "\033[?69h"); /* DECLRMM */
+		tty_putcode(tty, TTYC_ENMG);
 }
 
 void
@@ -2028,7 +2028,7 @@ tty_invalidate(struct tty *tty)
 
 	if (tty->flags & TTY_STARTED) {
 		if (tty_use_margin(tty))
-			tty_puts(tty, "\033[?69h"); /* DECLRMM */
+			tty_putcode(tty, TTYC_ENMG);
 		tty_putcode(tty, TTYC_SGR0);
 
 		tty->mode = ALL_MODES;
@@ -2105,8 +2105,6 @@ tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
 static void
 tty_margin(struct tty *tty, u_int rleft, u_int rright)
 {
-	char s[64];
-
 	if (!tty_use_margin(tty))
 		return;
 	if (tty->rleft == rleft && tty->rright == rright)
@@ -2118,10 +2116,9 @@ tty_margin(struct tty *tty, u_int rleft, u_int rright)
 	tty->rright = rright;
 
 	if (rleft == 0 && rright == tty->sx - 1)
-		snprintf(s, sizeof s, "\033[s");
+		tty_putcode(tty, TTYC_CLMG);
 	else
-		snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1);
-	tty_puts(tty, s);
+		tty_putcode2(tty, TTYC_CMG, rleft, rright);
 	tty->cx = tty->cy = UINT_MAX;
 }
 

window-copy.c

@@ -22,6 +22,7 @@
 #include <regex.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 #include "tmux.h"