mirror of https://github.com/tmux/tmux.git
Support passing through escape sequences to the underlying terminal by
using DCS with a "tmux;" prefix. Escape characters in the sequences must be doubled. For example: $ printf '\033Ptmux;\033\033]12;red\007\033\\' Will pass \033]12;red\007 to the terminal (and change the cursor colour in xterm). From Kevin Goodsell.pull/1/head
Nicholas Marriott
parent
d5ed5fb08f
commit
79e30daeae
73
input.c
73
input.c
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@ -41,6 +41,9 @@
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*
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* - A state for the screen \033k...\033\\ sequence to rename a window. This is
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* pretty stupid but not supporting it is more trouble than it is worth.
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*
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* - Special handling for ESC inside a DCS to allow arbitrary byte sequences to
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* be passed to the underlying teminal(s).
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*/
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/* Helper functions. */
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@ -50,8 +53,6 @@ void input_reply(struct input_ctx *, const char *, ...);
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/* Transition entry/exit handlers. */
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void input_clear(struct input_ctx *);
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void input_enter_dcs(struct input_ctx *);
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void input_exit_dcs(struct input_ctx *);
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void input_enter_osc(struct input_ctx *);
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void input_exit_osc(struct input_ctx *);
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void input_enter_apc(struct input_ctx *);
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@ -68,6 +69,7 @@ int input_c0_dispatch(struct input_ctx *);
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int input_esc_dispatch(struct input_ctx *);
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int input_csi_dispatch(struct input_ctx *);
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void input_csi_dispatch_sgr(struct input_ctx *);
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int input_dcs_dispatch(struct input_ctx *);
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int input_utf8_open(struct input_ctx *);
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int input_utf8_add(struct input_ctx *);
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int input_utf8_close(struct input_ctx *);
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@ -204,6 +206,7 @@ const struct input_transition input_state_dcs_enter_table[];
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const struct input_transition input_state_dcs_parameter_table[];
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const struct input_transition input_state_dcs_intermediate_table[];
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const struct input_transition input_state_dcs_handler_table[];
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const struct input_transition input_state_dcs_escape_table[];
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const struct input_transition input_state_dcs_ignore_table[];
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const struct input_transition input_state_osc_string_table[];
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const struct input_transition input_state_apc_string_table[];
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@ -286,10 +289,17 @@ const struct input_state input_state_dcs_intermediate = {
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/* dcs_handler state definition. */
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const struct input_state input_state_dcs_handler = {
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"dcs_handler",
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input_enter_dcs, input_exit_dcs,
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NULL, NULL,
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input_state_dcs_handler_table
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};
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/* dcs_escape state definition. */
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const struct input_state input_state_dcs_escape = {
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"dcs_escape",
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NULL, NULL,
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input_state_dcs_escape_table
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};
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/* dcs_ignore state definition. */
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const struct input_state input_state_dcs_ignore = {
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"dcs_ignore",
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@ -482,7 +492,7 @@ const struct input_transition input_state_dcs_enter_table[] = {
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{ 0x3a, 0x3a, NULL, &input_state_dcs_ignore },
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{ 0x3b, 0x3b, input_parameter, &input_state_dcs_parameter },
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{ 0x3c, 0x3f, input_intermediate, &input_state_dcs_parameter },
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{ 0x40, 0x7e, NULL, &input_state_dcs_handler },
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{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
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{ 0x7f, 0xff, NULL, NULL },
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{ -1, -1, NULL, NULL }
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@ -500,7 +510,7 @@ const struct input_transition input_state_dcs_parameter_table[] = {
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{ 0x3a, 0x3a, NULL, &input_state_dcs_ignore },
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{ 0x3b, 0x3b, input_parameter, NULL },
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{ 0x3c, 0x3f, NULL, &input_state_dcs_ignore },
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{ 0x40, 0x7e, NULL, &input_state_dcs_handler },
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{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
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{ 0x7f, 0xff, NULL, NULL },
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{ -1, -1, NULL, NULL }
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@ -515,7 +525,7 @@ const struct input_transition input_state_dcs_intermediate_table[] = {
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{ 0x1c, 0x1f, NULL, NULL },
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{ 0x20, 0x2f, input_intermediate, NULL },
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{ 0x30, 0x3f, NULL, &input_state_dcs_ignore },
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{ 0x40, 0x7e, NULL, &input_state_dcs_handler },
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{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
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{ 0x7f, 0xff, NULL, NULL },
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{ -1, -1, NULL, NULL }
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@ -523,13 +533,22 @@ const struct input_transition input_state_dcs_intermediate_table[] = {
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/* dcs_handler state table. */
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const struct input_transition input_state_dcs_handler_table[] = {
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INPUT_STATE_ANYWHERE,
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/* No INPUT_STATE_ANYWHERE */
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{ 0x00, 0x17, NULL, NULL },
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{ 0x19, 0x19, input_input, NULL },
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{ 0x1c, 0x1f, input_input, NULL },
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{ 0x20, 0x7e, input_input, NULL },
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{ 0x7f, 0xff, NULL, NULL },
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{ 0x00, 0x1a, input_input, NULL },
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{ 0x1b, 0x1b, NULL, &input_state_dcs_escape },
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{ 0x1c, 0xff, input_input, NULL },
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{ -1, -1, NULL, NULL }
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};
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/* dcs_escape state table. */
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const struct input_transition input_state_dcs_escape_table[] = {
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/* No INPUT_STATE_ANYWHERE */
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{ 0x00, 0x5b, input_input, &input_state_dcs_handler },
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{ 0x5c, 0x5c, input_dcs_dispatch, &input_state_ground },
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{ 0x5d, 0xff, input_input, &input_state_dcs_handler },
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{ -1, -1, NULL, NULL }
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};
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@ -1391,20 +1410,26 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
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}
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}
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/* DCS string started. */
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void
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input_enter_dcs(struct input_ctx *ictx)
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{
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log_debug("%s", __func__);
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input_clear(ictx);
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}
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/* DCS terminator (ST) received. */
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void
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input_exit_dcs(unused struct input_ctx *ictx)
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int
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input_dcs_dispatch(struct input_ctx *ictx)
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{
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log_debug("%s", __func__);
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const char prefix[] = "tmux;";
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const u_int prefix_len = (sizeof prefix) - 1;
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if (ictx->flags & INPUT_DISCARD)
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return (0);
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log_debug("%s: \"%s\"", __func__, ictx->input_buf);
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/* Check for tmux prefix. */
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if (ictx->input_len >= prefix_len &&
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strncmp(ictx->input_buf, prefix, prefix_len) == 0) {
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screen_write_rawstring(&ictx->ctx,
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ictx->input_buf + prefix_len, ictx->input_len - prefix_len);
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}
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return (0);
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}
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/* OSC string started. */
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@ -1191,3 +1191,15 @@ screen_write_overwrite(struct screen_write_ctx *ctx, u_int width)
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grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
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}
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}
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void
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screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
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{
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struct tty_ctx ttyctx;
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screen_write_initctx(ctx, &ttyctx, 0);
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ttyctx.ptr = str;
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ttyctx.num = len;
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tty_write(tty_cmd_rawstring, &ttyctx);
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}
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2
tmux.h
2
tmux.h
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@ -1426,6 +1426,7 @@ void tty_cmd_insertline(struct tty *, const struct tty_ctx *);
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void tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
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void tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
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void tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
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void tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
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/* tty-term.c */
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extern struct tty_terms tty_terms;
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@ -1804,6 +1805,7 @@ void screen_write_clearstartofscreen(struct screen_write_ctx *);
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void screen_write_clearscreen(struct screen_write_ctx *);
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void screen_write_cell(struct screen_write_ctx *,
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const struct grid_cell *, const struct utf8_data *);
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void screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
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/* screen-redraw.c */
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void screen_redraw_screen(struct client *, int, int);
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10
tty.c
10
tty.c
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@ -931,6 +931,16 @@ tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
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tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
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}
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void
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tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
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{
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u_int i;
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u_char *str = ctx->ptr;
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for (i = 0; i < ctx->num; i++)
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tty_putc(tty, str[i]);
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}
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void
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tty_cell(
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struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
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