Move input parser structs into input.c (removing fairly useless

saved_cursor_[xy] formats as a side-effect).

6 files changed, 100 insertions, 83 deletions

diff --git a/cmd-capture-pane.c b/cmd-capture-pane.c
index b44ebe9d..a348e155 100644
--- a/cmd-capture-pane.c
+++ b/cmd-capture-pane.c
@@ -57,15 +57,17 @@ char *
 cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
     size_t *len)
 {
-	char	*buf, *line, tmp[5];
-	size_t	 linelen;
-	u_int	 i;
+	struct evbuffer	*pending;
+	char		*buf, *line, tmp[5];
+	size_t		 linelen;
+	u_int		 i;
 
-	if (wp->ictx.since_ground == NULL)
+	pending = input_pending(wp);
+	if (pending == NULL)
 		return (xstrdup(""));
 
-	line = EVBUFFER_DATA(wp->ictx.since_ground);
-	linelen = EVBUFFER_LENGTH(wp->ictx.since_ground);
+	line = EVBUFFER_DATA(pending);
+	linelen = EVBUFFER_LENGTH(pending);
 
 	buf = xstrdup("");
 	if (args_has(args, 'C')) {
diff --git a/cmd-send-keys.c b/cmd-send-keys.c
index 27da410d..b1f8d672 100644
--- a/cmd-send-keys.c
+++ b/cmd-send-keys.c
@@ -52,7 +52,6 @@ cmd_send_keys_exec(struct cmd *self, struct cmd_q *cmdq)
 	struct mouse_event	*m = &cmdq->item->mouse;
 	struct window_pane	*wp;
 	struct session		*s;
-	struct input_ctx	*ictx;
 	const u_char		*str;
 	int			 i, key;
 
@@ -78,21 +77,8 @@ cmd_send_keys_exec(struct cmd *self, struct cmd_q *cmdq)
 		return (CMD_RETURN_NORMAL);
 	}
 
-	if (args_has(args, 'R')) {
-		ictx = &wp->ictx;
-
-		memcpy(&ictx->cell, &grid_default_cell, sizeof ictx->cell);
-		memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
-		ictx->old_cx = 0;
-		ictx->old_cy = 0;
-
-		if (wp->mode == NULL)
-			screen_write_start(&ictx->ctx, wp, &wp->base);
-		else
-			screen_write_start(&ictx->ctx, NULL, &wp->base);
-		screen_write_reset(&ictx->ctx);
-		screen_write_stop(&ictx->ctx);
-	}
+	if (args_has(args, 'R'))
+		input_reset(wp);
 
 	for (i = 0; i < args->argc; i++) {
 		str = args->argv[i];
diff --git a/format.c b/format.c
index ac28604d..39351fc3 100644
--- a/format.c
+++ b/format.c
@@ -715,8 +715,6 @@ format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
 	format_add(ft, "cursor_y", "%u", wp->base.cy);
 	format_add(ft, "scroll_region_upper", "%u", wp->base.rupper);
 	format_add(ft, "scroll_region_lower", "%u", wp->base.rlower);
-	format_add(ft, "saved_cursor_x", "%u", wp->ictx.old_cx);
-	format_add(ft, "saved_cursor_y", "%u", wp->ictx.old_cy);
 
 	format_add(ft, "alternate_on", "%d", wp->saved_grid ? 1 : 0);
 	format_add(ft, "alternate_saved_x", "%u", wp->saved_cx);
diff --git a/input.c b/input.c
index 9f7d4413..384ab45d 100644
--- a/input.c
+++ b/input.c
@@ -46,6 +46,55 @@
  *   be passed to the underlying teminal(s).
  */
 
+/* Input parser cell. */
+struct input_cell {
+	struct grid_cell	cell;
+	int			set;
+	int			g0set;	/* 1 if ACS */
+	int			g1set;	/* 1 if ACS */
+};
+
+/* Input parser context. */
+struct input_ctx {
+	struct window_pane     *wp;
+	struct screen_write_ctx ctx;
+
+	struct input_cell	cell;
+
+	struct input_cell	old_cell;
+	u_int 			old_cx;
+	u_int			old_cy;
+
+	u_char			interm_buf[4];
+	size_t			interm_len;
+
+	u_char			param_buf[64];
+	size_t			param_len;
+
+#define INPUT_BUF_START 32
+#define INPUT_BUF_LIMIT 1048576
+	u_char		       *input_buf;
+	size_t			input_len;
+	size_t			input_space;
+
+	int			param_list[24];	/* -1 not present */
+	u_int			param_list_len;
+
+	struct utf8_data	utf8data;
+
+	int			ch;
+	int			flags;
+#define INPUT_DISCARD 0x1
+
+	const struct input_state *state;
+
+	/*
+	 * All input received since we were last in the ground state. Sent to
+	 * control clients on connection.
+	 */
+	struct evbuffer	 	*since_ground;
+};
+
 /* Helper functions. */
 struct input_transition;
 int	input_split(struct input_ctx *);
@@ -706,7 +755,9 @@ input_reset_cell(struct input_ctx *ictx)
 void
 input_init(struct window_pane *wp)
 {
-	struct input_ctx	*ictx = &wp->ictx;
+	struct input_ctx	*ictx;
+
+	ictx = wp->ictx = xcalloc(1, sizeof *ictx);
 
 	input_reset_cell(ictx);
 
@@ -732,18 +783,46 @@ input_init(struct window_pane *wp)
 void
 input_free(struct window_pane *wp)
 {
-	if (wp == NULL)
-		return;
+	struct input_ctx	*ictx = wp->ictx;
 
-	free(wp->ictx.input_buf);
-	evbuffer_free(wp->ictx.since_ground);
+	free(ictx->input_buf);
+	evbuffer_free(ictx->since_ground);
+
+	free (ictx);
+	wp->ictx = NULL;
+}
+
+/* Reset input state and clear screen. */
+void
+input_reset(struct window_pane *wp)
+{
+	struct input_ctx	*ictx = wp->ictx;
+
+	memcpy(&ictx->cell, &grid_default_cell, sizeof ictx->cell);
+	memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
+	ictx->old_cx = 0;
+	ictx->old_cy = 0;
+
+	if (wp->mode == NULL)
+		screen_write_start(&ictx->ctx, wp, &wp->base);
+	else
+		screen_write_start(&ictx->ctx, NULL, &wp->base);
+	screen_write_reset(&ictx->ctx);
+	screen_write_stop(&ictx->ctx);
+}
+
+/* Return pending data. */
+struct evbuffer *
+input_pending(struct window_pane *wp)
+{
+	return (wp->ictx->since_ground);
 }
 
 /* Change input state. */
 void
 input_set_state(struct window_pane *wp, const struct input_transition *itr)
 {
-	struct input_ctx	*ictx = &wp->ictx;
+	struct input_ctx	*ictx = wp->ictx;
 
 	if (ictx->state->exit != NULL)
 		ictx->state->exit(ictx);
@@ -756,7 +835,7 @@ input_set_state(struct window_pane *wp, const struct input_transition *itr)
 void
 input_parse(struct window_pane *wp)
 {
-	struct input_ctx		*ictx = &wp->ictx;
+	struct input_ctx		*ictx = wp->ictx;
 	const struct input_transition	*itr;
 	struct evbuffer			*evb = wp->event->input;
 	u_char				*buf;
diff --git a/tmux.1 b/tmux.1
index ea178b78..9debeaf4 100644
--- a/tmux.1
+++ b/tmux.1
@@ -3318,8 +3318,6 @@ The following variables are available, where appropriate:
 .It Li "pane_top" Ta "" Ta "Top of pane"
 .It Li "pane_tty" Ta "" Ta "Pseudo terminal of pane"
 .It Li "pane_width" Ta "" Ta "Width of pane"
-.It Li "saved_cursor_x" Ta "" Ta "Saved cursor X in pane"
-.It Li "saved_cursor_y" Ta "" Ta "Saved cursor Y in pane"
 .It Li "scroll_region_lower" Ta "" Ta "Bottom of scroll region in pane"
 .It Li "scroll_region_upper" Ta "" Ta "Top of scroll region in pane"
 .It Li "session_attached" Ta "" Ta "Number of clients session is attached to"
diff --git a/tmux.h b/tmux.h
index 72e172e6..ad79d79d 100644
--- a/tmux.h
+++ b/tmux.h
@@ -785,55 +785,6 @@ struct screen_write_ctx {
 #define screen_hsize(s) ((s)->grid->hsize)
 #define screen_hlimit(s) ((s)->grid->hlimit)
 
-/* Input parser cell. */
-struct input_cell {
-	struct grid_cell	cell;
-	int			set;
-	int			g0set;	/* 1 if ACS */
-	int			g1set;	/* 1 if ACS */
-};
-
-/* Input parser context. */
-struct input_ctx {
-	struct window_pane     *wp;
-	struct screen_write_ctx ctx;
-
-	struct input_cell	cell;
-
-	struct input_cell	old_cell;
-	u_int 			old_cx;
-	u_int			old_cy;
-
-	u_char			interm_buf[4];
-	size_t			interm_len;
-
-	u_char			param_buf[64];
-	size_t			param_len;
-
-#define INPUT_BUF_START 32
-#define INPUT_BUF_LIMIT 1048576
-	u_char		       *input_buf;
-	size_t			input_len;
-	size_t			input_space;
-
-	int			param_list[24];	/* -1 not present */
-	u_int			param_list_len;
-
-	struct utf8_data	utf8data;
-
-	int			ch;
-	int			flags;
-#define INPUT_DISCARD 0x1
-
-	const struct input_state *state;
-
-	/*
-	 * All input received since we were last in the ground state. Sent to
-	 * control clients on connection.
-	 */
-	struct evbuffer	 	*since_ground;
-};
-
 /*
  * Window mode. Windows can be in several modes and this is used to call the
  * right function to handle input and output.
@@ -881,6 +832,7 @@ struct window_choose_mode_item {
 };
 
 /* Child window structure. */
+struct input_ctx;
 struct window_pane {
 	u_int		 id;
 	u_int		 active_point;
@@ -920,7 +872,7 @@ struct window_pane {
 	int		 fd;
 	struct bufferevent *event;
 
-	struct input_ctx ictx;
+	struct input_ctx *ictx;
 
 	struct grid_cell colgc;
 
@@ -1983,6 +1935,8 @@ void	 recalculate_sizes(void);
 /* input.c */
 void	 input_init(struct window_pane *);
 void	 input_free(struct window_pane *);
+void	 input_reset(struct window_pane *);
+struct evbuffer *input_pending(struct window_pane *);
 void	 input_parse(struct window_pane *);
 
 /* input-key.c */