Sync OpenBSD patchset 866:

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.
This commit is contained in:
Tiago Cunha 2011-03-19 23:30:37 +00:00
parent 9bc44043a4
commit a0295b4c2f
4 changed files with 77 additions and 28 deletions

75
input.c
View File

@ -1,4 +1,4 @@
/* $Id: input.c,v 1.116 2011-03-19 23:28:30 tcunha Exp $ */
/* $Id: input.c,v 1.117 2011-03-19 23:30:37 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -41,6 +41,9 @@
*
* - A state for the screen \033k...\033\\ sequence to rename a window. This is
* pretty stupid but not supporting it is more trouble than it is worth.
*
* - Special handling for ESC inside a DCS to allow arbitrary byte sequences to
* be passed to the underlying teminal(s).
*/
/* Helper functions. */
@ -50,8 +53,6 @@ void input_reply(struct input_ctx *, const char *, ...);
/* Transition entry/exit handlers. */
void input_clear(struct input_ctx *);
void input_enter_dcs(struct input_ctx *);
void input_exit_dcs(struct input_ctx *);
void input_enter_osc(struct input_ctx *);
void input_exit_osc(struct input_ctx *);
void input_enter_apc(struct input_ctx *);
@ -68,6 +69,7 @@ int input_c0_dispatch(struct input_ctx *);
int input_esc_dispatch(struct input_ctx *);
int input_csi_dispatch(struct input_ctx *);
void input_csi_dispatch_sgr(struct input_ctx *);
int input_dcs_dispatch(struct input_ctx *);
int input_utf8_open(struct input_ctx *);
int input_utf8_add(struct input_ctx *);
int input_utf8_close(struct input_ctx *);
@ -204,6 +206,7 @@ const struct input_transition input_state_dcs_enter_table[];
const struct input_transition input_state_dcs_parameter_table[];
const struct input_transition input_state_dcs_intermediate_table[];
const struct input_transition input_state_dcs_handler_table[];
const struct input_transition input_state_dcs_escape_table[];
const struct input_transition input_state_dcs_ignore_table[];
const struct input_transition input_state_osc_string_table[];
const struct input_transition input_state_apc_string_table[];
@ -286,10 +289,17 @@ const struct input_state input_state_dcs_intermediate = {
/* dcs_handler state definition. */
const struct input_state input_state_dcs_handler = {
"dcs_handler",
input_enter_dcs, input_exit_dcs,
NULL, NULL,
input_state_dcs_handler_table
};
/* dcs_escape state definition. */
const struct input_state input_state_dcs_escape = {
"dcs_escape",
NULL, NULL,
input_state_dcs_escape_table
};
/* dcs_ignore state definition. */
const struct input_state input_state_dcs_ignore = {
"dcs_ignore",
@ -482,7 +492,7 @@ const struct input_transition input_state_dcs_enter_table[] = {
{ 0x3a, 0x3a, NULL, &input_state_dcs_ignore },
{ 0x3b, 0x3b, input_parameter, &input_state_dcs_parameter },
{ 0x3c, 0x3f, input_intermediate, &input_state_dcs_parameter },
{ 0x40, 0x7e, NULL, &input_state_dcs_handler },
{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
@ -500,7 +510,7 @@ const struct input_transition input_state_dcs_parameter_table[] = {
{ 0x3a, 0x3a, NULL, &input_state_dcs_ignore },
{ 0x3b, 0x3b, input_parameter, NULL },
{ 0x3c, 0x3f, NULL, &input_state_dcs_ignore },
{ 0x40, 0x7e, NULL, &input_state_dcs_handler },
{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
@ -515,7 +525,7 @@ const struct input_transition input_state_dcs_intermediate_table[] = {
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0x2f, input_intermediate, NULL },
{ 0x30, 0x3f, NULL, &input_state_dcs_ignore },
{ 0x40, 0x7e, NULL, &input_state_dcs_handler },
{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
@ -523,13 +533,22 @@ const struct input_transition input_state_dcs_intermediate_table[] = {
/* dcs_handler state table. */
const struct input_transition input_state_dcs_handler_table[] = {
INPUT_STATE_ANYWHERE,
/* No INPUT_STATE_ANYWHERE */
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, input_input, NULL },
{ 0x1c, 0x1f, input_input, NULL },
{ 0x20, 0x7e, input_input, NULL },
{ 0x7f, 0xff, NULL, NULL },
{ 0x00, 0x1a, input_input, NULL },
{ 0x1b, 0x1b, NULL, &input_state_dcs_escape },
{ 0x1c, 0xff, input_input, NULL },
{ -1, -1, NULL, NULL }
};
/* dcs_escape state table. */
const struct input_transition input_state_dcs_escape_table[] = {
/* No INPUT_STATE_ANYWHERE */
{ 0x00, 0x5b, input_input, &input_state_dcs_handler },
{ 0x5c, 0x5c, input_dcs_dispatch, &input_state_ground },
{ 0x5d, 0xff, input_input, &input_state_dcs_handler },
{ -1, -1, NULL, NULL }
};
@ -1391,20 +1410,26 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
}
}
/* DCS string started. */
void
input_enter_dcs(struct input_ctx *ictx)
{
log_debug("%s", __func__);
input_clear(ictx);
}
/* DCS terminator (ST) received. */
void
input_exit_dcs(unused struct input_ctx *ictx)
int
input_dcs_dispatch(struct input_ctx *ictx)
{
log_debug("%s", __func__);
const char prefix[] = "tmux;";
const u_int prefix_len = (sizeof prefix) - 1;
if (ictx->flags & INPUT_DISCARD)
return (0);
log_debug("%s: \"%s\"", __func__, ictx->input_buf);
/* Check for tmux prefix. */
if (ictx->input_len >= prefix_len &&
strncmp(ictx->input_buf, prefix, prefix_len) == 0) {
screen_write_rawstring(&ictx->ctx,
ictx->input_buf + prefix_len, ictx->input_len - prefix_len);
}
return (0);
}
/* OSC string started. */

View File

@ -1,4 +1,4 @@
/* $Id: screen-write.c,v 1.93 2011-02-15 15:10:47 tcunha Exp $ */
/* $Id: screen-write.c,v 1.94 2011-03-19 23:30:37 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -1191,3 +1191,15 @@ screen_write_overwrite(struct screen_write_ctx *ctx, u_int width)
grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
}
}
void
screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
{
struct tty_ctx ttyctx;
screen_write_initctx(ctx, &ttyctx, 0);
ttyctx.ptr = str;
ttyctx.num = len;
tty_write(tty_cmd_rawstring, &ttyctx);
}

4
tmux.h
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@ -1,4 +1,4 @@
/* $Id: tmux.h,v 1.611 2011-03-19 23:27:35 tcunha Exp $ */
/* $Id: tmux.h,v 1.612 2011-03-19 23:30:37 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -1422,6 +1422,7 @@ void tty_cmd_insertline(struct tty *, const struct tty_ctx *);
void tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
void tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
void tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
void tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
/* tty-term.c */
extern struct tty_terms tty_terms;
@ -1800,6 +1801,7 @@ void screen_write_clearstartofscreen(struct screen_write_ctx *);
void screen_write_clearscreen(struct screen_write_ctx *);
void screen_write_cell(struct screen_write_ctx *,
const struct grid_cell *, const struct utf8_data *);
void screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
/* screen-redraw.c */
void screen_redraw_screen(struct client *, int, int);

12
tty.c
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@ -1,4 +1,4 @@
/* $Id: tty.c,v 1.203 2011-02-15 15:24:00 tcunha Exp $ */
/* $Id: tty.c,v 1.204 2011-03-19 23:30:37 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -931,6 +931,16 @@ tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
}
void
tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
{
u_int i;
u_char *str = ctx->ptr;
for (i = 0; i < ctx->num; i++)
tty_putc(tty, str[i]);
}
void
tty_cell(
struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)