Merge branch 'obsd-master'

format.c

@@ -5277,9 +5277,12 @@ format_grid_line(struct grid *gd, u_int y)
 	for (x = 0; x < grid_line_length(gd, y); x++) {
 		grid_get_cell(gd, x, y, &gc);
 		if (gc.flags & GRID_FLAG_PADDING)
-			break;
+			continue;
 
 		ud = xreallocarray(ud, size + 2, sizeof *ud);
+		if (gc.flags & GRID_FLAG_TAB)
+			utf8_set(&ud[size++], '\t');
+		else
 			memcpy(&ud[size++], &gc.data, sizeof *ud);
 	}
 	if (size != 0) {

grid-reader.c

@@ -345,6 +345,8 @@ grid_reader_cell_equals_data(const struct grid_cell *gc,
 {
 	if (gc->flags & GRID_FLAG_PADDING)
 		return (0);
+	if (gc->flags & GRID_FLAG_TAB && ud->size == 1 && *ud->data == '\t')
+		return (1);
 	if (gc->data.size != ud->size)
 		return (0);
 	return (memcmp(gc->data.data, ud->data, gc->data.size) == 0);

grid.c

@@ -92,6 +92,8 @@ grid_need_extended_cell(const struct grid_cell_entry *gce,
 		return (1);
 	if (gc->link != 0)
 		return (1);
+	if (gc->flags & GRID_FLAG_TAB)
+		return (1);
 	return (0);
 }
 
@@ -124,6 +126,9 @@ grid_extended_cell(struct grid_line *gl, struct grid_cell_entry *gce,
 		fatalx("offset too big");
 	gl->flags |= GRID_LINE_EXTENDED;
 
+	if (gc->flags & GRID_FLAG_TAB)
+		uc = gc->data.width;
+	else
 		utf8_from_data(&gc->data, &uc);
 
 	gee = &gl->extddata[gce->offset];
@@ -252,6 +257,16 @@ grid_cells_equal(const struct grid_cell *gc1, const struct grid_cell *gc2)
 	return (memcmp(gc1->data.data, gc2->data.data, gc1->data.size) == 0);
 }
 
+/* Set grid cell to a tab. */
+void
+grid_set_tab(struct grid_cell *gc, u_int width)
+{
+	memset(&gc->data, 0, sizeof gc->data);
+	gc->flags |= GRID_FLAG_TAB;
+	gc->data.width = gc->data.size = gc->data.have = width;
+	memset(&gc->data, ' ', gc->data.size);
+}
+
 /* Free one line. */
 static void
 grid_free_line(struct grid *gd, u_int py)
@@ -515,6 +530,10 @@ grid_get_cell1(struct grid_line *gl, u_int px, struct grid_cell *gc)
 			gc->bg = gee->bg;
 			gc->us = gee->us;
 			gc->link = gee->link;
+
+			if (gc->flags & GRID_FLAG_TAB)
+				grid_set_tab(gc, gee->data);
+			else
 				utf8_to_data(gee->data, &gc->data);
 		}
 		return;
@@ -1077,6 +1096,10 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
 		} else
 			codelen = 0;
 
+		if (gc.flags & GRID_FLAG_TAB) {
+			data = "\t";
+			size = 1;
+		} else {
 			data = gc.data.data;
 			size = gc.data.size;
 			if ((flags & GRID_STRING_ESCAPE_SEQUENCES) &&
@@ -1085,6 +1108,7 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
 				data = "\\\\";
 				size = 2;
 			}
+		}
 
 		while (len < off + size + codelen + 1) {
 			buf = xreallocarray(buf, 2, len);

input.c

@@ -1213,6 +1213,10 @@ input_c0_dispatch(struct input_ctx *ictx)
 	struct screen_write_ctx	*sctx = &ictx->ctx;
 	struct window_pane	*wp = ictx->wp;
 	struct screen		*s = sctx->s;
+	struct grid_cell	 gc, first_gc;
+	u_int			 cx = s->cx, line = s->cy + s->grid->hsize;
+	u_int			 width;
+	int			 has_content = 0;
 
 	ictx->utf8started = 0; /* can't be valid UTF-8 */
 
@@ -1234,11 +1238,28 @@ input_c0_dispatch(struct input_ctx *ictx)
 			break;
 
 		/* Find the next tab point, or use the last column if none. */
+		grid_get_cell(s->grid, s->cx, line, &first_gc);
 		do {
-			s->cx++;
-			if (bit_test(s->tabs, s->cx))
+			if (!has_content) {
+				grid_get_cell(s->grid, cx, line, &gc);
+				if (gc.data.size != 1 ||
+				    *gc.data.data != ' ' ||
+				    !grid_cells_look_equal(&gc, &first_gc))
+					has_content = 1;
+			}
+			cx++;
+			if (bit_test(s->tabs, cx))
 				break;
-		} while (s->cx < screen_size_x(s) - 1);
+		} while (cx < screen_size_x(s) - 1);
+
+		width = cx - s->cx;
+		if (has_content || width > sizeof gc.data.data)
+			s->cx = cx;
+		else {
+			grid_get_cell(s->grid, s->cx, line, &gc);
+			grid_set_tab(&gc, width);
+			screen_write_collect_add(sctx, &gc);
+		}
 		break;
 	case '\012':	/* LF */
 	case '\013':	/* VT */

screen-write.c

@@ -1911,6 +1911,8 @@ screen_write_collect_add(struct screen_write_ctx *ctx,
 	collect = 1;
 	if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
 		collect = 0;
+	else if (gc->flags & GRID_FLAG_TAB)
+		collect = 0;
 	else if (gc->attr & GRID_ATTR_CHARSET)
 		collect = 0;
 	else if (~s->mode & MODE_WRAP)

status.c

@@ -740,6 +740,8 @@ status_prompt_redraw(struct client *c)
 	u_int			 pcursor, pwidth, promptline;
 	struct grid_cell	 gc;
 	struct format_tree	*ft;
+	u_char			 ch;
+	struct utf8_data	*ud;
 
 	if (c->tty.sx == 0 || c->tty.sy == 0)
 		return (0);
@@ -801,17 +803,25 @@ status_prompt_redraw(struct client *c)
 
 	width = 0;
 	for (i = 0; c->prompt_buffer[i].size != 0; i++) {
+		ud = &c->prompt_buffer[i];
 		if (width < offset) {
-			width += c->prompt_buffer[i].width;
+			width += ud->width;
 			continue;
 		}
 		if (width >= offset + pwidth)
 			break;
-		width += c->prompt_buffer[i].width;
+		width += ud->width;
 		if (width > offset + pwidth)
 			break;
 
-		utf8_copy(&gc.data, &c->prompt_buffer[i]);
+		ch = *ud->data;
+		if (ud->size == 1 && (ch <= 0x1f || ch == 0x7f)) {
+			gc.data.data[0] = '^';
+			gc.data.data[1] = (ch == 0x7f) ? '?' : ch|0x40;
+			gc.data.size = gc.data.have = 2;
+			gc.data.width = 2;
+		} else
+			utf8_copy(&gc.data, ud);
 		screen_write_cell(&ctx, &gc);
 	}
 
@@ -864,6 +874,7 @@ status_prompt_translate_key(struct client *c, key_code key, key_code *new_key)
 		case 'p'|KEYC_CTRL:
 		case 't'|KEYC_CTRL:
 		case 'u'|KEYC_CTRL:
+		case 'v'|KEYC_CTRL:
 		case 'w'|KEYC_CTRL:
 		case 'y'|KEYC_CTRL:
 		case '\n':
@@ -1262,6 +1273,19 @@ status_prompt_key(struct client *c, key_code key)
 	}
 	key &= ~KEYC_MASK_FLAGS;
 
+	if (c->prompt_flags & (PROMPT_SINGLE|PROMPT_QUOTENEXT)) {
+		c->prompt_flags &= ~PROMPT_QUOTENEXT;
+		if ((key & KEYC_MASK_KEY) == KEYC_BSPACE)
+			key = 0x7f;
+		else if ((key & KEYC_MASK_KEY) > 0x7f) {
+			if (!KEYC_IS_UNICODE(key))
+				return (0);
+			key &= KEYC_MASK_KEY;
+		} else
+			key &= (key & KEYC_CTRL) ? 0x1f : KEYC_MASK_KEY;
+		goto append_key;
+	}
+
 	keys = options_get_number(c->session->options, "status-keys");
 	if (keys == MODEKEY_VI) {
 		switch (status_prompt_translate_key(c, key, &key)) {
@@ -1484,6 +1508,9 @@ process_key:
 		} else
 			prefix = '+';
 		goto changed;
+	case 'v'|KEYC_CTRL:
+		c->prompt_flags |= PROMPT_QUOTENEXT;
+		break;
 	default:
 		goto append_key;
 	}
@@ -1492,9 +1519,11 @@ process_key:
 	return (0);
 
 append_key:
-	if (key <= 0x7f)
+	if (key <= 0x7f) {
 		utf8_set(&tmp, key);
-	else if (KEYC_IS_UNICODE(key))
+		if (key <= 0x1f || key == 0x7f)
+			tmp.width = 2;
+	} else if (KEYC_IS_UNICODE(key))
 		utf8_to_data(key, &tmp);
 	else
 		return (0);

tmux.h

@@ -718,6 +718,7 @@ struct colour_palette {
 #define GRID_FLAG_SELECTED 0x10
 #define GRID_FLAG_NOPALETTE 0x20
 #define GRID_FLAG_CLEARED 0x40
+#define GRID_FLAG_TAB 0x80
 
 /* Grid line flags. */
 #define GRID_LINE_WRAPPED 0x1
@@ -1971,6 +1972,7 @@ struct client {
 #define PROMPT_NOFORMAT 0x8
 #define PROMPT_KEY 0x10
 #define PROMPT_ACCEPT 0x20
+#define PROMPT_QUOTENEXT 0x40
 	int			 prompt_flags;
 	enum prompt_type	 prompt_type;
 	int			 prompt_cursor;
@@ -2905,6 +2907,7 @@ int	 attributes_fromstring(const char *);
 /* grid.c */
 extern const struct grid_cell grid_default_cell;
 void	 grid_empty_line(struct grid *, u_int, u_int);
+void	 grid_set_tab(struct grid_cell *, u_int);
 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
 int	 grid_cells_look_equal(const struct grid_cell *,
 	     const struct grid_cell *);

window-copy.c

@@ -3301,6 +3301,11 @@ window_copy_cellstring(const struct grid_line *gl, u_int px, size_t *size,
 		*allocated = 0;
 		return (&gce->data.data);
 	}
+	if (gce->flags & GRID_FLAG_TAB) {
+		*size = 1;
+		*allocated = 0;
+		return ("\t");
+	}
 
 	utf8_to_data(gl->extddata[gce->offset].data, &ud);
 	if (ud.size == 0) {
@@ -3696,7 +3701,7 @@ window_copy_search(struct window_mode_entry *wme, int direction, int regex)
 	struct screen_write_ctx		 ctx;
 	struct grid			*gd = s->grid;
 	const char			*str = data->searchstr;
-	u_int				 at, endline, fx, fy, start;
+	u_int				 at, endline, fx, fy, start, ssx;
 	int				 cis, found, keys, visible_only;
 	int				 wrapflag;
 
@@ -3723,7 +3728,9 @@ window_copy_search(struct window_mode_entry *wme, int direction, int regex)
 	fx = data->cx;
 	fy = screen_hsize(data->backing) - data->oy + data->cy;
 
-	screen_init(&ss, screen_write_strlen("%s", str), 1, 0);
+	if ((ssx = screen_write_strlen("%s", str)) == 0)
+		return (0);
+	screen_init(&ss, ssx, 1, 0);
 	screen_write_start(&ctx, &ss);
 	screen_write_nputs(&ctx, -1, &grid_default_cell, "%s", str);
 	screen_write_stop(&ctx);
@@ -4083,10 +4090,16 @@ window_copy_match_at_cursor(struct window_copy_mode_data *data)
 		px = at - (py * sx);
 
 		grid_get_cell(gd, px, gd->hsize + py - data->oy, &gc);
+		if (gc.flags & GRID_FLAG_TAB) {
+			buf = xrealloc(buf, len + 2);
+			buf[len] = '\t';
+			len++;
+		} else {
 			buf = xrealloc(buf, len + gc.data.size + 1);
 			memcpy(buf + len, gc.data.data, gc.data.size);
 			len += gc.data.size;
 		}
+	}
 	if (len != 0)
 		buf[len] = '\0';
 	return (buf);
@@ -4812,6 +4825,9 @@ window_copy_copy_line(struct window_mode_entry *wme, char **buf, size_t *off,
 			grid_get_cell(gd, i, sy, &gc);
 			if (gc.flags & GRID_FLAG_PADDING)
 				continue;
+			if (gc.flags & GRID_FLAG_TAB)
+				utf8_set(&ud, '\t');
+			else
 				utf8_copy(&ud, &gc.data);
 			if (ud.size == 1 && (gc.attr & GRID_ATTR_CHARSET)) {
 				s = tty_acs_get(NULL, ud.data[0]);