Add a feature for bracketed paste.

tmux.1

@@ -5568,6 +5568,8 @@ $ printf '\e033]12;red\e033\e\e'
 .Ed
 .It Em \&Cmg, \&Clmg, \&Dsmg , \&Enmg
 Set, clear, disable or enable DECSLRM margins.
+.It Em \&Dsbp , \&Enbp
+Disable and enable bracketed paste.
 .It Em \&Smol
 Enable the overline attribute.
 .It Em \&Smulx

tmux.h

@@ -281,6 +281,7 @@ enum tty_code_code {
 	TTYC_DIM,
 	TTYC_DL,
 	TTYC_DL1,
+	TTYC_DSBP,
 	TTYC_DSMG,
 	TTYC_E3,
 	TTYC_ECH,
@@ -288,6 +289,7 @@ enum tty_code_code {
 	TTYC_EL,
 	TTYC_EL1,
 	TTYC_ENACS,
+	TTYC_ENBP,
 	TTYC_ENMG,
 	TTYC_FSL,
 	TTYC_HOME,

tty-features.c

@@ -25,7 +25,6 @@
 
 /*
  * Still hardcoded:
- * - bracket paste (sent if application asks for it);
  * - mouse (under kmous capability);
  * - focus events (under XT and focus-events option);
  * - default colours (under AX or op capabilities);
@@ -123,6 +122,18 @@ static struct tty_feature tty_feature_usstyle = {
 	0
 };
 
+/* Terminal supports cursor bracketed paste. */
+static const char *tty_feature_bpaste_capabilities[] = {
+	"Enbp=\E[?2004h",
+	"Dsbp=\\E[?2004l",
+	NULL
+};
+static struct tty_feature tty_feature_bpaste = {
+	"bpaste",
+	tty_feature_bpaste_capabilities,
+	0
+};
+
 /* Terminal supports cursor styles. */
 static const char *tty_feature_cstyle_capabilities[] = {
 	"Ss=\\E[%p1%d q",
@@ -193,6 +204,7 @@ static struct tty_feature tty_feature_rectfill = {
 /* Available terminal features. */
 static const struct tty_feature *tty_features[] = {
 	&tty_feature_256,
+	&tty_feature_bpaste,
 	&tty_feature_clipboard,
 	&tty_feature_ccolour,
 	&tty_feature_cstyle,
@@ -297,19 +309,19 @@ tty_default_features(int *feat, const char *name, u_int version)
 		const char	*features;
 	} table[] = {
 		{ .name = "mintty",
-		  .features = "256,RGB,ccolour,clipboard,cstyle,margins,strikethrough,overline,title"
+		  .features = "256,RGB,bpaste,ccolour,clipboard,cstyle,margins,overline,strikethrough,title"
 		},
 		{ .name = "tmux",
-		  .features = "256,RGB,ccolour,clipboard,cstyle,overline,strikethough,title,usstyle"
+		  .features = "256,RGB,bpaste,ccolour,clipboard,cstyle,overline,strikethough,title,usstyle"
 		},
 		{ .name = "rxvt-unicode",
 		  .features = "256,title"
 		},
 		{ .name = "iTerm2",
-		  .features = "256,RGB,clipboard,cstyle,margins,strikethrough,sync,title"
+		  .features = "256,RGB,bpaste,clipboard,cstyle,margins,strikethrough,sync,title"
 		},
 		{ .name = "XTerm",
-		  .features = "256,RGB,ccolour,clipboard,cstyle,margins,rectfill,strikethrough,title"
+		  .features = "256,RGB,bpaste,ccolour,clipboard,cstyle,margins,rectfill,strikethrough,title"
 		}
 	};
 	u_int	i;

tty-term.c

@@ -86,6 +86,7 @@ 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_DSBP] = { TTYCODE_STRING, "Dsbp" },
 	[TTYC_DSMG] = { TTYCODE_STRING, "Dsmg" },
 	[TTYC_E3] = { TTYCODE_STRING, "E3" },
 	[TTYC_ECH] = { TTYCODE_STRING, "ech" },
@@ -93,6 +94,7 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_EL1] = { TTYCODE_STRING, "el1" },
 	[TTYC_EL] = { TTYCODE_STRING, "el" },
 	[TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
+	[TTYC_ENBP] = { TTYCODE_STRING, "Enbp" },
 	[TTYC_ENMG] = { TTYCODE_STRING, "Enmg" },
 	[TTYC_FSL] = { TTYCODE_STRING, "fsl" },
 	[TTYC_HOME] = { TTYCODE_STRING, "home" },
@@ -561,11 +563,11 @@ tty_term_create(struct tty *tty, char *name, int *feat, int fd, char **cause)
 	if ((tty_term_flag(term, TTYC_TC) || tty_term_has(term, TTYC_RGB)) &&
 	    (!tty_term_has(term, TTYC_SETRGBF) ||
 	    !tty_term_has(term, TTYC_SETRGBB)))
-		tty_add_features(feat, "RGB", ":,");
+		tty_add_features(feat, "RGB", ",");
 
-	/* Add feature if terminal has XT. */
+	/* Add some features if terminal has XT. */
 	if (tty_term_flag(term, TTYC_XT))
-		tty_add_features(feat, "title", ":,");
+		tty_add_features(feat, "bpaste,title", ",");
 
 	/* Apply the features and overrides again. */
 	tty_apply_features(term, *feat);

tty.c

@@ -407,7 +407,7 @@ tty_stop_tty(struct tty *tty)
 			tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
 	}
 	if (tty->mode & MODE_BRACKETPASTE)
-		tty_raw(tty, "\033[?2004l");
+		tty_raw(tty, tty_term_string(tty->term, TTYC_DSBP));
 	if (*tty->ccolour != '\0')
 		tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
 
@@ -729,9 +729,9 @@ tty_update_mode(struct tty *tty, int mode, struct screen *s)
 	}
 	if (changed & MODE_BRACKETPASTE) {
 		if (mode & MODE_BRACKETPASTE)
-			tty_puts(tty, "\033[?2004h");
+			tty_putcode(tty, TTYC_ENBP);
 		else
-			tty_puts(tty, "\033[?2004l");
+			tty_putcode(tty, TTYC_DSBP);
 	}
 	tty->mode = mode;
 }