Add collapsible OSC 133 output to copy mode

cmd-copy-mode.c

@@ -30,8 +30,8 @@ const struct cmd_entry cmd_copy_mode_entry = {
 	.name = "copy-mode",
 	.alias = NULL,
 
-	.args = { "dekHMqSs:t:u", 0, 0, NULL },
-	.usage = "[-dekHMqSu] [-s src-pane] " CMD_TARGET_PANE_USAGE,
+	.args = { "UcdekHMqSs:t:u", 0, 0, NULL },
+	.usage = "[-UcdekHMqSu] [-s src-pane] " CMD_TARGET_PANE_USAGE,
 
 	.source =  { 's', CMD_FIND_PANE, 0 },
 	.target = { 't', CMD_FIND_PANE, 0 },

grid.c

@@ -1760,6 +1760,8 @@ grid_line_flags_string(int flags)
 		strlcat(s, "START_OUTPUT,", sizeof s);
 	if (flags & GRID_LINE_END_OUTPUT)
 		strlcat(s, "END_OUTPUT,", sizeof s);
+	if (flags & GRID_LINE_END_OUTPUT_STATUS)
+		strlcat(s, "END_OUTPUT_STATUS,", sizeof s);
 	if (flags & GRID_LINE_HYPERLINK)
 		strlcat(s, "HYPERLINK,", sizeof s);
 	if (*s == '\0')

input.c

@@ -3192,13 +3192,14 @@ input_osc_112(struct input_ctx *ictx, const char *p)
 
 /* Parse the OSC 133 D exit status. */
 static int
-input_osc_133_exit_status(const char *p)
+input_osc_133_exit_status(const char *p, int *present)
 {
 	const char	*end;
 	char		*copy;
-	const char	*errstr;
+	char		*endptr;
 	long long	 status;
 
+	*present = 0;
 	if (p[1] != ';' || p[2] == '\0' || strchr(p + 2, '=') == p + 2)
 		return (0);
 	end = strchr(p + 2, ';');
@@ -3212,9 +3213,11 @@ input_osc_133_exit_status(const char *p)
 		free(copy);
 		return (0);
 	}
-	status = strtonum(copy, 0, 255, &errstr);
+	*present = 1;
+	errno = 0;
+	status = (int)strtol(copy, &endptr, 10);
 	free(copy);
-	if (errstr != NULL)
+	if (errno != 0 || endptr == copy || status < 0 || status > 255)
 		return (255);
 	return (status);
 }
@@ -3259,6 +3262,22 @@ input_fire_command_event(struct window_pane *wp, const char *name)
 	events_fire(name, ep);
 }
 
+/* Check if an OSC 133 prompt is secondary or a continuation. */
+static int
+input_osc_133_secondary_prompt(const char *p)
+{
+	const char	*cp;
+
+	while ((cp = strstr(p, ";k=")) != NULL) {
+		cp += 3;
+		if ((*cp == 's' || *cp == 'c') &&
+		    (cp[1] == '\0' || cp[1] == ';'))
+			return (1);
+		p = cp;
+	}
+	return (0);
+}
+
 /* Handle the OSC 133 sequence. */
 static void
 input_osc_133(struct input_ctx *ictx, const char *p)
@@ -3268,8 +3287,7 @@ input_osc_133(struct input_ctx *ictx, const char *p)
 	struct grid		*gd = s->grid;
 	u_int			 line = s->cy + gd->hsize;
 	struct grid_line	*gl = NULL;
-	const char		*cp;
-	int			 status;
+	int			 status, status_present;
 
 	if (line < gd->hsize + gd->sy)
 		gl = grid_get_line(gd, line);
@@ -3278,9 +3296,14 @@ input_osc_133(struct input_ctx *ictx, const char *p)
 	case 'A':
 	case 'N':
 		if (gl != NULL) {
-			gl->osc133_data.prompt_col = s->cx;
-			gl->osc133_data.cmd_col = 0;
-			gl->flags |= GRID_LINE_START_PROMPT;
+			if (!(gl->flags & (GRID_LINE_START_PROMPT|
+			    GRID_LINE_SECOND_PROMPT))) {
+				gl->osc133_data.prompt_col = s->cx;
+				if (input_osc_133_secondary_prompt(p))
+					gl->flags |= GRID_LINE_SECOND_PROMPT;
+				else
+					gl->flags |= GRID_LINE_START_PROMPT;
+			}
 		}
 		if (wp != NULL) {
 			wp->last_prompt_time = time(NULL);
@@ -3289,23 +3312,25 @@ input_osc_133(struct input_ctx *ictx, const char *p)
 		break;
 	case 'P':
 		if (gl != NULL) {
-			cp = strstr(p, ";k=s");
-			if (cp != NULL && (cp[4] == ';' || cp[4] == '\0'))
-				gl->flags |= GRID_LINE_SECOND_PROMPT;
-			else
-				gl->flags |= GRID_LINE_START_PROMPT;
-			gl->osc133_data.prompt_col = s->cx;
+			if (!(gl->flags & (GRID_LINE_START_PROMPT|
+			    GRID_LINE_SECOND_PROMPT))) {
+				gl->osc133_data.prompt_col = s->cx;
+				if (input_osc_133_secondary_prompt(p))
+					gl->flags |= GRID_LINE_SECOND_PROMPT;
+				else
+					gl->flags |= GRID_LINE_START_PROMPT;
+			}
 		}
 		break;
 	case 'B':
 	case 'I':
-		if (gl != NULL) {
+		if (gl != NULL && !(gl->flags & GRID_LINE_START_COMMAND)) {
 			gl->flags |= GRID_LINE_START_COMMAND;
 			gl->osc133_data.cmd_col = s->cx;
 		}
 		break;
 	case 'C':
-		if (gl != NULL) {
+		if (gl != NULL && !(gl->flags & GRID_LINE_START_OUTPUT)) {
 			gl->flags |= GRID_LINE_START_OUTPUT;
 			gl->osc133_data.out_start_col = s->cx;
 		}
@@ -3318,7 +3343,7 @@ input_osc_133(struct input_ctx *ictx, const char *p)
 		}
 		break;
 	case 'D':
-		status = input_osc_133_exit_status(p);
+		status = input_osc_133_exit_status(p, &status_present);
 		if (wp != NULL) {
 			wp->cmd_end_time = time(NULL);
 			wp->flags &= ~PANE_CMDRUNNING;
@@ -3327,6 +3352,8 @@ input_osc_133(struct input_ctx *ictx, const char *p)
 		}
 		if (gl != NULL) {
 			gl->flags |= GRID_LINE_END_OUTPUT;
+			if (status_present)
+				gl->flags |= GRID_LINE_END_OUTPUT_STATUS;
 			gl->osc133_data.out_end_col = s->cx;
 			gl->osc133_data.exit_status = status;
 		}

key-bindings.c

@@ -52,7 +52,8 @@
 	" '#{?#{m/r:(copy|view)-mode,#{pane_mode}},Go To Top,}' '<' {send -X history-top}" \
 	" '#{?#{m/r:(copy|view)-mode,#{pane_mode}},Go To Bottom,}' '>' {send -X history-bottom}" \
 	" ''" \
-	" '#{?#{==:#{pane_mode},copy-mode},#{?copy_line_numbers,Hide Line Numbers,Show Line Numbers},}' 'L' {send -X line-numbers-toggle}" \
+	" '#{?#{==:#{pane_mode},copy-mode},#{?copy_line_numbers,Line Numbers Off,Line Numbers On},}' 'L' {send -X line-numbers-toggle}" \
+	" '#{?#{==:#{pane_mode},copy-mode},#{?copy_fold_view,Fold View Off,Fold View On},}' 'O' {send -X fold-view-toggle}" \
 	" '#{?#{==:#{pane_mode},copy-mode},Edit,}' 'e' {if -F '#{selection_present}' {send -X open-selection} {send -X open-output}}" \
 	" '#{?#{==:#{pane_mode},copy-mode},#{?refresh_active,Refresh Off,Refresh On},}' 'r' {send -X refresh-toggle}" \
 	" ''" \
@@ -585,11 +586,14 @@ key_bindings_init(void)
 		"bind -Tcopy-mode Escape { send -X cancel }",
 		"bind -Tcopy-mode C-[ { send -X cancel }",
 		"bind -Tcopy-mode Space { send -X page-down }",
+		"bind -Tcopy-mode Tab { send -X toggle-output }",
+"bind -Tcopy-mode BTab { send -X toggle-output -a }",
 		"bind -Tcopy-mode , { send -X jump-reverse }",
 		"bind -Tcopy-mode \\; { send -X jump-again }",
 		"bind -Tcopy-mode F { command-prompt -P -1p'(jump backward)' { send -X jump-backward -- '%%' } }",
 		"bind -Tcopy-mode L { send -X line-numbers-toggle }",
 		"bind -Tcopy-mode N { send -X search-reverse }",
+		"bind -Tcopy-mode O { send -X fold-view-toggle }",
 		"bind -Tcopy-mode P { send -X toggle-position }",
 		"bind -Tcopy-mode R { send -X rectangle-toggle }",
 		"bind -Tcopy-mode T { command-prompt -P -1p'(jump to backward)' { send -X jump-to-backward -- '%%' } }",
@@ -603,7 +607,7 @@ key_bindings_init(void)
 		"bind -Tcopy-mode t { command-prompt -P -1p'(jump to forward)' { send -X jump-to-forward -- '%%' } }",
 		"bind -Tcopy-mode Home { send -X start-of-line }",
 		"bind -Tcopy-mode End { send -X end-of-line }",
-		"bind -Tcopy-mode MouseDown1Pane select-pane",
+		"bind -Tcopy-mode MouseDown1Pane { select-pane; send -X toggle-output -m }",
 		"bind -Tcopy-mode MouseDrag1Pane { select-pane; send -X begin-selection }",
 		"bind -Tcopy-mode MouseDragEnd1Pane { send -X copy-pipe-and-cancel }",
 		"bind -Tcopy-mode WheelUpPane { select-pane; send -N5 -X scroll-up }",
@@ -663,6 +667,8 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi Escape { send -X clear-selection }",
 		"bind -Tcopy-mode-vi C-[ { send -X clear-selection }",
 		"bind -Tcopy-mode-vi Space { send -X begin-selection }",
+		"bind -Tcopy-mode-vi Tab { send -X toggle-output }",
+"bind -Tcopy-mode-vi BTab { send -X toggle-output -a }",
 		"bind -Tcopy-mode-vi '$' { send -X end-of-line }",
 		"bind -Tcopy-mode-vi , { send -X jump-reverse }",
 		"bind -Tcopy-mode-vi / { command-prompt -P -T search -p'(search down)' { send -X search-forward -- '%%' } }",
@@ -693,6 +699,7 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi M-e { if -F '#{selection_present}' { send -X open-selection } { send -X open-output } }",
 		"bind -Tcopy-mode-vi M-o { send -X select-output }",
 		"bind -Tcopy-mode-vi N { send -X search-reverse }",
+		"bind -Tcopy-mode-vi O { send -X fold-view-toggle }",
 		"bind -Tcopy-mode-vi P { send -X toggle-position }",
 		"bind -Tcopy-mode-vi T { command-prompt -P -1p'(jump to backward)' { send -X jump-to-backward -- '%%' } }",
 		"bind -Tcopy-mode-vi V { send -X select-line }",
@@ -720,7 +727,7 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi % { send -X next-matching-bracket }",
 		"bind -Tcopy-mode-vi Home { send -X start-of-line }",
 		"bind -Tcopy-mode-vi End { send -X end-of-line }",
-		"bind -Tcopy-mode-vi MouseDown1Pane { select-pane }",
+		"bind -Tcopy-mode-vi MouseDown1Pane { select-pane; send -X toggle-output -m }",
 		"bind -Tcopy-mode-vi MouseDrag1Pane { select-pane; send -X begin-selection }",
 		"bind -Tcopy-mode-vi MouseDragEnd1Pane { send -X copy-pipe-and-cancel }",
 		"bind -Tcopy-mode-vi WheelUpPane { select-pane; send -N5 -X scroll-up }",

options-table.c

@@ -115,7 +115,6 @@ static const char *options_table_theme_list[] = {
 static const char *options_table_copy_mode_line_numbers_list[] = {
 	"off", "default", "absolute", "relative", "hybrid", NULL
 };
-
 /* Status line format. */
 #define OPTIONS_TABLE_STATUS_FORMAT1 \
 	"#[align=left range=left #{E:status-left-style}]" \
@@ -1385,6 +1384,13 @@ const struct options_table_entry options_table[] = {
 	  .text = "Style of search matches in copy mode."
 	},
 
+	{ .name = "copy-mode-exit-status-format",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE,
+	  .default_str = "#{?exit_status,#[fg=themered]!, }",
+	  .text = "Format of OSC 133 exit status indicator in copy mode."
+	},
+
 	{ .name = "copy-mode-current-match-style",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_WINDOW,

regress/collapse-output.sh

@@ -0,0 +1,84 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"
+
+$TMUX kill-server 2>/dev/null
+$TMUX new-session -d -x80 -y20 "sh -c 'printf \"\\033]133;A\\007p\\$ \\033]133;B\\007echo hi\\n\\033]133;C\\007hello\\n\\033]133;D;0\\007separator\\n\\033]133;A\\007p\\$ \\033]133;B\\007\"; exec sleep 100'" || exit 1
+sleep 1
+
+$TMUX copy-mode -c || exit 1
+$TMUX send-keys -X search-backward hello || exit 1
+hidden=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$hidden" != hello ] || exit 1
+$TMUX send-keys -X search-backward separator || exit 1
+hidden=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$hidden" != separator ] || exit 1
+
+$TMUX send-keys BTab || exit 1
+$TMUX send-keys -X search-backward hello || exit 1
+shown=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$shown" = hello ] || exit 1
+$TMUX send-keys -X select-line || exit 1
+$TMUX send-keys -X copy-selection || exit 1
+selected=$($TMUX show-buffer)
+[ "$selected" = hello ] || exit 1
+$TMUX send-keys -X cancel || exit 1
+
+$TMUX kill-server
+$TMUX new-session -d -x80 -y20 "sh -c 'printf \"first\\n\\033]133;D;0\\007separator\\n\\033]133;A\\007p\\$ \\033]133;B\\007\"; exec sleep 100'" || exit 1
+sleep 1
+
+$TMUX copy-mode -c || exit 1
+$TMUX send-keys -X search-backward separator || exit 1
+hidden=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$hidden" != separator ] || exit 1
+$TMUX send-keys BTab || exit 1
+$TMUX send-keys -X search-backward separator || exit 1
+shown=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$shown" = separator ] || exit 1
+$TMUX send-keys -X cancel || exit 1
+
+$TMUX kill-server
+$TMUX new-session -d -x80 -y20 "sh -c 'printf \"\\033]133;A\\007P> \\033]133;B\\007for i in 1 2 3; do\\n\\033]133;A;k=s\\007> \\033]133;B\\007echo \\\$i\\n\\033]133;P;k=s\\007> \\033]133;B\\007done\\n\\033]133;C\\007RESULT\\n\\033]133;D;0\\007separator\\n\\033]133;A\\007P> \\033]133;B\\007\"; exec sleep 100'" || exit 1
+sleep 1
+
+$TMUX copy-mode -c || exit 1
+$TMUX send-keys -X search-backward RESULT || exit 1
+hidden=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$hidden" != RESULT ] || exit 1
+$TMUX send-keys -X search-backward-text 'echo $i' || exit 1
+shown=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$shown" = '> echo $i' ] || exit 1
+$TMUX send-keys -X cancel || exit 1
+
+$TMUX copy-mode -U || exit 1
+$TMUX send-keys -X search-backward RESULT || exit 1
+$TMUX send-keys Tab || exit 1
+cursor=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$cursor" = '> done' ] || exit 1
+$TMUX send-keys -X cancel || exit 1
+
+$TMUX kill-server
+$TMUX new-session -d -x80 -y20 "sh -c 'printf \"\\033]133;A\\007P0> \\033]133;B\\007\\r\\n\\033]133;D;0\\007empty-separator\\n\\033]133;A\\007P1> \\033]133;B\\007\"; exec sleep 100'" || exit 1
+sleep 1
+
+$TMUX copy-mode -c || exit 1
+collapsed=$($TMUX capture-pane -Mp)
+case "$collapsed" in
+*empty-separator*) exit 1 ;;
+*P0\>*P1\>*) ;;
+*) exit 1 ;;
+esac
+cursor=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$cursor" = 'P1>' ] || exit 1
+$TMUX send-keys -X search-backward empty-separator || exit 1
+hidden=$($TMUX display-message -p '#{copy_cursor_line}')
+[ "$hidden" != empty-separator ] || exit 1
+$TMUX send-keys -X cancel || exit 1
+
+$TMUX kill-server 2>/dev/null
+exit 0

regress/copy-mode-exit-status.sh

@@ -0,0 +1,102 @@
+#!/bin/sh
+
+# Check OSC 133 exit status indicators in copy mode using a real client.
+
+PATH=/bin:/usr/bin
+TERM=screen
+LC_ALL=C.UTF-8
+export TERM LC_ALL
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"
+TMUX2="$TEST_TMUX -LtestB$$ -f/dev/null"
+
+fail() {
+	echo "$*" >&2
+	exit 1
+}
+
+capture() {
+	$TMUX capture-pane -pS0 -E- >$TMP || exit 1
+}
+
+check_grep() {
+	grep -Fq "$1" $TMP || fail "missing pattern: $1"
+}
+
+check_no_grep() {
+	grep -Fq "$1" $TMP && fail "unexpected pattern: $1"
+}
+
+$TMUX kill-server 2>/dev/null
+$TMUX2 kill-server 2>/dev/null
+
+TMP=$(mktemp)
+trap "rm -f $TMP; $TMUX kill-server 2>/dev/null; $TMUX2 kill-server 2>/dev/null" 0 1 15
+
+$TMUX2 new-session -d -x80 -y10 \
+	"printf '\033]133;A\007p\$ \033]133;B\007one\n\033]133;C\007out1\n\033]133;D;0\007\033]133;A\007p\$ \033]133;B\007two\n\033]133;C\007out2\n\033]133;D;123\007\033]133;A\007p\$ \033]133;B\007silent\n\033]133;C\007\033]133;D;7\007\033]133;A\007p\$ \033]133;B\007three\n\033]133;C\007out3\n\033]133;D\007\033]133;A\007p\$ \033]133;B\007'; exec sleep 100" || \
+	exit 1
+$TMUX2 set -g status off || exit 1
+$TMUX2 set -g copy-mode-position-format '#[align=left]POS' || exit 1
+$TMUX2 list-keys -Tcopy-mode O | grep -Fq 'fold-view-toggle' || exit 1
+$TMUX2 list-keys -Tcopy-mode-vi O | grep -Fq 'fold-view-toggle' || exit 1
+
+$TMUX new-session -d -x80 -y10 || exit 1
+$TMUX set -g status off || exit 1
+$TMUX send -l "$TMUX2 attach" || exit 1
+$TMUX send Enter || exit 1
+sleep 1
+
+$TMUX2 copy-mode -U || exit 1
+$TMUX2 send -X history-top || exit 1
+sleep 1
+capture
+check_grep "!- p\$ two"
+check_grep "!  p\$ silent"
+check_no_grep "!+ p\$ silent"
+check_grep "POS"
+
+# Rebuilding with collapsed output must not expand copy-mode formats before
+# the viewport has been restored for the shorter backing grid.
+$TMUX2 send -X collapse-output -a || exit 1
+sleep 1
+capture
+check_grep "!+ p\$ two"
+check_grep "!  p\$ silent"
+check_no_grep "!+ p\$ silent"
+$TMUX2 send -X line-numbers-on || exit 1
+sleep 1
+capture
+check_grep "  3 !+ p\$ two"
+$TMUX2 send -X fold-view-toggle || exit 1
+[ "$($TMUX2 display -p '#{copy_fold_view}')" = 0 ] || exit 1
+sleep 1
+capture
+check_grep "out2"
+check_no_grep "!+ p\$ two"
+check_grep "  3 p\$ two"
+$TMUX2 send -X fold-view-toggle || exit 1
+[ "$($TMUX2 display -p '#{copy_fold_view}')" = 1 ] || exit 1
+sleep 1
+capture
+check_grep "  3 !- p\$ two"
+
+# A format wider than the standard three-column gutter is not truncated.
+$TMUX2 send -X cancel || exit 1
+$TMUX2 set -g copy-mode-exit-status-format \
+	'#[align=right]#{?exit_status,!#{exit_status}, }' || exit 1
+$TMUX2 copy-mode -c || exit 1
+$TMUX2 send -X history-top || exit 1
+sleep 1
+capture
+check_grep "!123+ p\$ two"
+
+$TMUX2 send -X select-line || exit 1
+$TMUX2 send -X copy-selection || exit 1
+selection=$($TMUX2 show-buffer)
+case $selection in
+*RC=*) fail "exit status was copied" ;;
+esac
+
+exit 0

regress/input-modes.sh

@@ -5,9 +5,12 @@
 start_pane alternate 10 3 'MAIN\033[?1049hALT\033[?1049lZ\n'
 check_capture alternate 'MAINZ'
 
-start_pane osc133 20 8 'xx\033]133;A\007p>\033]133;B\007cmd\nxy\033]133;P;k=s\007more\nzz\033]133;C\007out\033]133;D;7\007\nq\033]133;C\007bad\033]133;D;-1\007\nqq\033]133;C\007big\033]133;D;300\007\nzzz\033]133;C\007ok\033]133;D\007\n'
+start_pane osc133 20 12 'xx\033]133;A\007p>\033]133;B\007cmd\nxy\033]133;P;k=s\007more\nxz\033]133;A;k=s\007more\nxw\033]133;P;k=c\007more\nxv\033]133;A;k=c\007more\nzz\033]133;C\007out\033]133;D;7\007\nq\033]133;C\007bad\033]133;D;-1\007\nqq\033]133;C\007big\033]133;D;300\007\nzzz\033]133;C\007ok\033]133;D\007\n'
 check_capture osc133 'xxp>cmd
 xymore
+xzmore
+xwmore
+xvmore
 zzout
 qbad
 qqbig
@@ -15,10 +18,13 @@ zzzok'
 check_raw_matches osc133 \
 	'L 0 \(0\) flags=START_PROMPT,START_COMMAND\[[0-9a-f]+\].* osc133=2,4,0,0,0' \
 	'L 1 \(1\) flags=SECOND_PROMPT\[[0-9a-f]+\].* osc133=2,0,0,0,0' \
-	'L 2 \(2\) flags=START_OUTPUT,END_OUTPUT\[[0-9a-f]+\].* osc133=0,0,2,5,7' \
-	'L 3 \(3\) flags=START_OUTPUT,END_OUTPUT\[[0-9a-f]+\].* osc133=0,0,1,4,255' \
-	'L 4 \(4\) flags=START_OUTPUT,END_OUTPUT\[[0-9a-f]+\].* osc133=0,0,2,5,255' \
-	'L 5 \(5\) flags=START_OUTPUT,END_OUTPUT\[[0-9a-f]+\].* osc133=0,0,3,5,0'
+	'L 2 \(2\) flags=SECOND_PROMPT\[[0-9a-f]+\].* osc133=2,0,0,0,0' \
+	'L 3 \(3\) flags=SECOND_PROMPT\[[0-9a-f]+\].* osc133=2,0,0,0,0' \
+	'L 4 \(4\) flags=SECOND_PROMPT\[[0-9a-f]+\].* osc133=2,0,0,0,0' \
+	'L 5 \(5\) flags=START_OUTPUT,END_OUTPUT,END_OUTPUT_STATUS\[[0-9a-f]+\].* osc133=0,0,2,5,7' \
+	'L 6 \(6\) flags=START_OUTPUT,END_OUTPUT,END_OUTPUT_STATUS\[[0-9a-f]+\].* osc133=0,0,1,4,255' \
+	'L 7 \(7\) flags=START_OUTPUT,END_OUTPUT,END_OUTPUT_STATUS\[[0-9a-f]+\].* osc133=0,0,2,5,255' \
+	'L 8 \(8\) flags=START_OUTPUT,END_OUTPUT\[[0-9a-f]+\].* osc133=0,0,3,5,0'
 
 $TMUX kill-server 2>/dev/null
 exit $exit_status

regress/output-commands.sh

@@ -53,6 +53,13 @@ $TMUX send-keys -X copy-output || exit 1
 [ "$($TMUX show-buffer)" = "$EXPECTED" ] || exit 1
 $TMUX send-keys -X cancel || exit 1
 
+$TMUX copy-mode -c || exit 1
+$TMUX send-keys -X search-backward echo || exit 1
+$TMUX send-keys -X select-output || exit 1
+$TMUX send-keys -X copy-selection || exit 1
+[ "$($TMUX show-buffer)" = "$EXPECTED" ] || exit 1
+$TMUX send-keys -X cancel || exit 1
+
 $TMUX copy-mode || exit 1
 $TMUX send-keys -X search-backward one || exit 1
 $TMUX set-buffer sentinel || exit 1
@@ -79,7 +86,7 @@ $TMUX send-keys -t :plain.0 -X copy-output || exit 1
 [ "$($TMUX show-buffer -b keep)" = unchanged ] || exit 1
 $TMUX send-keys -t :plain.0 -X cancel || exit 1
 
-$TMUX new-window -d -n empty "printf '\\033]133;A\\007p\\$ \\033]133;B\\007echo\\033]133;C\\007one\\n\\033]133;D;0\\007\\033]133;A\\007p\\$ \\033]133;B\\007true\\n\\033]133;C\\007\\033]133;D;0\\007'; exec sleep 100" || exit 1
+$TMUX new-window -d -n empty "printf '\\033]133;A\\007p\\$ \\033]133;B\\007echo\\n\\033]133;C\\007one\\n\\033]133;D;0\\007\\033]133;A\\007p\\$ \\033]133;B\\007true\\n\\033]133;C\\007\\033]133;D;0\\007'; exec sleep 100" || exit 1
 sleep 1
 $TMUX copy-mode -t :empty || exit 1
 $TMUX set-buffer sentinel || exit 1
@@ -95,6 +102,15 @@ $TMUX send-keys -t :prompt.0 -X copy-output || exit 1
 [ "$($TMUX show-buffer)" = one ] || exit 1
 $TMUX send-keys -t :prompt.0 -X cancel || exit 1
 
+$TMUX copy-mode -c -t :prompt || exit 1
+$TMUX send-keys -t :prompt.0 -X expand-output || exit 1
+$TMUX send-keys -t :prompt.0 -X -N 100 cursor-down || exit 1
+$TMUX send-keys -t :prompt.0 -X select-output || exit 1
+[ "$($TMUX display-message -p -t :prompt.0 '#{selection_present}')" = 1 ] || exit 1
+$TMUX send-keys -t :prompt.0 -X copy-selection || exit 1
+[ "$($TMUX show-buffer)" = one ] || exit 1
+$TMUX send-keys -t :prompt.0 -X cancel || exit 1
+
 $TMUX copy-mode -t :prompt || exit 1
 $TMUX send-keys -t :prompt.0 -X -N 100 cursor-down || exit 1
 $TMUX send-keys -t :prompt.0 C-o || exit 1
@@ -114,13 +130,14 @@ $TMUX send-keys -t :same.0 -X copy-selection || exit 1
 [ "$($TMUX show-buffer)" = one ] || exit 1
 $TMUX send-keys -t :same.0 -X cancel || exit 1
 
+$TMUX set-option -g scroll-on-clear off || exit 1
 $TMUX new-window -d -n clear "printf 'old1\\nold2\\nold3\\nold4\\nold5\\nold6\\n\\033]133;A\\007p\\$ \\033]133;B\\007echo 1; clear; ps\\n\\033]133;C\\0071\\n\\033[H\\033[2JPID TTY\\n1 pts/0\\n\\033]133;D;0\\007separator\\n\\033]133;A\\007p\\$ \\033]133;B\\007'; exec sleep 100" || exit 1
 sleep 1
 $TMUX copy-mode -t :clear || exit 1
 $TMUX send-keys -t :clear.0 C-o || exit 1
 $TMUX set-buffer sentinel || exit 1
 $TMUX send-keys -t :clear.0 -X copy-selection || exit 1
-[ "$($TMUX show-buffer)" = "$(printf '1\nPID TTY\n1 pts/0')" ] || exit 1
+[ "$($TMUX show-buffer)" = "$(printf 'PID TTY\n1 pts/0')" ] || exit 1
 $TMUX send-keys -t :clear.0 -X cancel || exit 1
 
 $TMUX new-window -d -n oneline "printf '\\033]133;A\\007p\\$ \\033]133;B\\007echo\\n\\033]133;C\\007one\\033]133;D;0\\007\\nseparator\\n\\033]133;A\\007p\\$ \\033]133;B\\007'; exec sleep 100" || exit 1

tmux.1

@@ -2196,6 +2196,27 @@ Hide line numbers in copy mode.
 .Xc
 Toggle line numbers in copy mode.
 .It Xo
+.Ic collapse\-output
+.Op Fl a
+.Xc
+Collapse the output for the command on the cursor line.
+With
+.Fl a ,
+collapse all command output in the copy-mode buffer.
+Text before the first OSC 133 prompt is treated as an initial command output
+region.
+.It Xo
+.Ic expand\-output
+.Op Fl a
+.Xc
+Expand the output for the command on the cursor line.
+With
+.Fl a ,
+expand all command output in the copy-mode buffer.
+.Pp
+The Tab key toggles output for the command on the cursor line and S-Tab
+toggles all command output.
+.It Xo
 .Ic middle\-line
 (vi: M)
 (emacs: M\-r)
@@ -2692,12 +2713,19 @@ The synopsis for the
 command is:
 .Bl -tag -width Ds
 .It Xo Ic copy\-mode
-.Op Fl dekHMqSu
+.Op Fl UcdekHMqSu
 .Op Fl s Ar src\-pane
 .Op Fl t Ar target\-pane
 .Xc
 Enter copy mode.
 .Pp
+.Fl c
+enters copy mode with OSC 133 command output collapsed.
+.Fl U
+enters copy mode with OSC 133 output controls shown and all output expanded.
+When output is collapsed, the prompt and entered command are shown and text
+from the output start marker to the next primary prompt marker is hidden.
+.Pp
 .Fl u
 enters copy mode and scrolls one page up and
 .Fl d
@@ -5907,6 +5935,20 @@ section.
 .It Ic copy\-mode\-position\-format Ar format
 Format of the position indicator in copy mode.
 .Pp
+.It Ic copy\-mode\-exit\-status\-format Ar format
+Format of the OSC 133 exit status indicator in the copy-mode gutter.
+The default displays a theme red
+.Ql !
+for a nonzero status and a space otherwise.
+The gutter grows to fit the expanded format.
+The format is drawn to the left of the collapse control, and its alignment
+applies within that area.
+The format is expanded with
+.Ql exit_status
+and
+.Ql exit_status_present ,
+which is set only when the OSC 133 end-of-output marker includes a status.
+.Pp
 .It Ic copy\-mode\-position\-style Ar style
 Set the style of the position indicator in copy mode.
 For how to specify

tmux.h

@@ -819,6 +819,7 @@ struct colour_palette {
 #define GRID_LINE_START_OUTPUT 0x40
 #define GRID_LINE_END_OUTPUT 0x80
 #define GRID_LINE_HYPERLINK 0x100
+#define GRID_LINE_END_OUTPUT_STATUS 0x200
 
 /* All OSC 133 flags. */
 #define GRID_LINE_OSC133_FLAGS \
@@ -826,7 +827,8 @@ struct colour_palette {
 	 GRID_LINE_SECOND_PROMPT| \
 	 GRID_LINE_START_COMMAND| \
 	 GRID_LINE_START_OUTPUT| \
-	 GRID_LINE_END_OUTPUT)
+	 GRID_LINE_END_OUTPUT| \
+	 GRID_LINE_END_OUTPUT_STATUS)
 
 /* Grid string flags. */
 #define GRID_STRING_WITH_SEQUENCES 0x1