File: [local] / src / usr.bin / tmux / input.c (download)
Revision 1.102, Fri Jul 15 00:42:56 2016 UTC (7 years, 10 months ago) by nicm
Branch: MAIN
CVS Tags: OPENBSD_6_0_BASE, OPENBSD_6_0
Changes since 1.101: +11 -34 lines
Instead of representing colours in several different forms with various
cell flags, convert to use an int with flags marking 256 or RGB colours
in the top byte (except in cells, which we don't want to make any
bigger). From Brad Town.
|
/* $OpenBSD: input.c,v 1.102 2016/07/15 00:42:56 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "tmux.h"
/*
* Based on the description by Paul Williams at:
*
* http://vt100.net/emu/dec_ansi_parser
*
* With the following changes:
*
* - 7-bit only.
*
* - Support for UTF-8.
*
* - OSC (but not APC) may be terminated by \007 as well as ST.
*
* - A state for APC similar to OSC. Some terminals appear to use this to set
* the title.
*
* - 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 terminals.
*/
/* 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 *);
int input_get(struct input_ctx *, u_int, int, int);
void printflike(2, 3) input_reply(struct input_ctx *, const char *, ...);
void input_set_state(struct window_pane *, const struct input_transition *);
void input_reset_cell(struct input_ctx *);
/* Transition entry/exit handlers. */
void input_clear(struct input_ctx *);
void input_ground(struct input_ctx *);
void input_enter_osc(struct input_ctx *);
void input_exit_osc(struct input_ctx *);
void input_enter_apc(struct input_ctx *);
void input_exit_apc(struct input_ctx *);
void input_enter_rename(struct input_ctx *);
void input_exit_rename(struct input_ctx *);
/* Input state handlers. */
int input_print(struct input_ctx *);
int input_intermediate(struct input_ctx *);
int input_parameter(struct input_ctx *);
int input_input(struct input_ctx *);
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_rm(struct input_ctx *);
void input_csi_dispatch_rm_private(struct input_ctx *);
void input_csi_dispatch_sm(struct input_ctx *);
void input_csi_dispatch_sm_private(struct input_ctx *);
void input_csi_dispatch_winops(struct input_ctx *);
void input_csi_dispatch_sgr_256(struct input_ctx *, int, u_int *);
void input_csi_dispatch_sgr_rgb(struct input_ctx *, int, u_int *);
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 *);
/* Command table comparison function. */
int input_table_compare(const void *, const void *);
/* Command table entry. */
struct input_table_entry {
int ch;
const char *interm;
int type;
};
/* Escape commands. */
enum input_esc_type {
INPUT_ESC_DECALN,
INPUT_ESC_DECKPAM,
INPUT_ESC_DECKPNM,
INPUT_ESC_DECRC,
INPUT_ESC_DECSC,
INPUT_ESC_HTS,
INPUT_ESC_IND,
INPUT_ESC_NEL,
INPUT_ESC_RI,
INPUT_ESC_RIS,
INPUT_ESC_SCSG0_OFF,
INPUT_ESC_SCSG0_ON,
INPUT_ESC_SCSG1_OFF,
INPUT_ESC_SCSG1_ON,
};
/* Escape command table. */
const struct input_table_entry input_esc_table[] = {
{ '0', "(", INPUT_ESC_SCSG0_ON },
{ '0', ")", INPUT_ESC_SCSG1_ON },
{ '7', "", INPUT_ESC_DECSC },
{ '8', "", INPUT_ESC_DECRC },
{ '8', "#", INPUT_ESC_DECALN },
{ '=', "", INPUT_ESC_DECKPAM },
{ '>', "", INPUT_ESC_DECKPNM },
{ 'B', "(", INPUT_ESC_SCSG0_OFF },
{ 'B', ")", INPUT_ESC_SCSG1_OFF },
{ 'D', "", INPUT_ESC_IND },
{ 'E', "", INPUT_ESC_NEL },
{ 'H', "", INPUT_ESC_HTS },
{ 'M', "", INPUT_ESC_RI },
{ 'c', "", INPUT_ESC_RIS },
};
/* Control (CSI) commands. */
enum input_csi_type {
INPUT_CSI_CBT,
INPUT_CSI_CNL,
INPUT_CSI_CPL,
INPUT_CSI_CUB,
INPUT_CSI_CUD,
INPUT_CSI_CUF,
INPUT_CSI_CUP,
INPUT_CSI_CUU,
INPUT_CSI_DA,
INPUT_CSI_DA_TWO,
INPUT_CSI_DCH,
INPUT_CSI_DECSCUSR,
INPUT_CSI_DECSTBM,
INPUT_CSI_DL,
INPUT_CSI_DSR,
INPUT_CSI_ECH,
INPUT_CSI_ED,
INPUT_CSI_EL,
INPUT_CSI_HPA,
INPUT_CSI_ICH,
INPUT_CSI_IL,
INPUT_CSI_RCP,
INPUT_CSI_RM,
INPUT_CSI_RM_PRIVATE,
INPUT_CSI_SCP,
INPUT_CSI_SGR,
INPUT_CSI_SM,
INPUT_CSI_SM_PRIVATE,
INPUT_CSI_TBC,
INPUT_CSI_VPA,
INPUT_CSI_WINOPS,
};
/* Control (CSI) command table. */
const struct input_table_entry input_csi_table[] = {
{ '@', "", INPUT_CSI_ICH },
{ 'A', "", INPUT_CSI_CUU },
{ 'B', "", INPUT_CSI_CUD },
{ 'C', "", INPUT_CSI_CUF },
{ 'D', "", INPUT_CSI_CUB },
{ 'E', "", INPUT_CSI_CNL },
{ 'F', "", INPUT_CSI_CPL },
{ 'G', "", INPUT_CSI_HPA },
{ 'H', "", INPUT_CSI_CUP },
{ 'J', "", INPUT_CSI_ED },
{ 'K', "", INPUT_CSI_EL },
{ 'L', "", INPUT_CSI_IL },
{ 'M', "", INPUT_CSI_DL },
{ 'P', "", INPUT_CSI_DCH },
{ 'X', "", INPUT_CSI_ECH },
{ 'Z', "", INPUT_CSI_CBT },
{ 'c', "", INPUT_CSI_DA },
{ 'c', ">", INPUT_CSI_DA_TWO },
{ 'd', "", INPUT_CSI_VPA },
{ 'f', "", INPUT_CSI_CUP },
{ 'g', "", INPUT_CSI_TBC },
{ 'h', "", INPUT_CSI_SM },
{ 'h', "?", INPUT_CSI_SM_PRIVATE },
{ 'l', "", INPUT_CSI_RM },
{ 'l', "?", INPUT_CSI_RM_PRIVATE },
{ 'm', "", INPUT_CSI_SGR },
{ 'n', "", INPUT_CSI_DSR },
{ 'q', " ", INPUT_CSI_DECSCUSR },
{ 'r', "", INPUT_CSI_DECSTBM },
{ 's', "", INPUT_CSI_SCP },
{ 't', "", INPUT_CSI_WINOPS },
{ 'u', "", INPUT_CSI_RCP },
};
/* Input transition. */
struct input_transition {
int first;
int last;
int (*handler)(struct input_ctx *);
const struct input_state *state;
};
/* Input state. */
struct input_state {
const char *name;
void (*enter)(struct input_ctx *);
void (*exit)(struct input_ctx *);
const struct input_transition *transitions;
};
/* State transitions available from all states. */
#define INPUT_STATE_ANYWHERE \
{ 0x18, 0x18, input_c0_dispatch, &input_state_ground }, \
{ 0x1a, 0x1a, input_c0_dispatch, &input_state_ground }, \
{ 0x1b, 0x1b, NULL, &input_state_esc_enter }
/* Forward declarations of state tables. */
const struct input_transition input_state_ground_table[];
const struct input_transition input_state_esc_enter_table[];
const struct input_transition input_state_esc_intermediate_table[];
const struct input_transition input_state_csi_enter_table[];
const struct input_transition input_state_csi_parameter_table[];
const struct input_transition input_state_csi_intermediate_table[];
const struct input_transition input_state_csi_ignore_table[];
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[];
const struct input_transition input_state_rename_string_table[];
const struct input_transition input_state_consume_st_table[];
const struct input_transition input_state_utf8_three_table[];
const struct input_transition input_state_utf8_two_table[];
const struct input_transition input_state_utf8_one_table[];
/* ground state definition. */
const struct input_state input_state_ground = {
"ground",
input_ground, NULL,
input_state_ground_table
};
/* esc_enter state definition. */
const struct input_state input_state_esc_enter = {
"esc_enter",
input_clear, NULL,
input_state_esc_enter_table
};
/* esc_intermediate state definition. */
const struct input_state input_state_esc_intermediate = {
"esc_intermediate",
NULL, NULL,
input_state_esc_intermediate_table
};
/* csi_enter state definition. */
const struct input_state input_state_csi_enter = {
"csi_enter",
input_clear, NULL,
input_state_csi_enter_table
};
/* csi_parameter state definition. */
const struct input_state input_state_csi_parameter = {
"csi_parameter",
NULL, NULL,
input_state_csi_parameter_table
};
/* csi_intermediate state definition. */
const struct input_state input_state_csi_intermediate = {
"csi_intermediate",
NULL, NULL,
input_state_csi_intermediate_table
};
/* csi_ignore state definition. */
const struct input_state input_state_csi_ignore = {
"csi_ignore",
NULL, NULL,
input_state_csi_ignore_table
};
/* dcs_enter state definition. */
const struct input_state input_state_dcs_enter = {
"dcs_enter",
input_clear, NULL,
input_state_dcs_enter_table
};
/* dcs_parameter state definition. */
const struct input_state input_state_dcs_parameter = {
"dcs_parameter",
NULL, NULL,
input_state_dcs_parameter_table
};
/* dcs_intermediate state definition. */
const struct input_state input_state_dcs_intermediate = {
"dcs_intermediate",
NULL, NULL,
input_state_dcs_intermediate_table
};
/* dcs_handler state definition. */
const struct input_state input_state_dcs_handler = {
"dcs_handler",
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",
NULL, NULL,
input_state_dcs_ignore_table
};
/* osc_string state definition. */
const struct input_state input_state_osc_string = {
"osc_string",
input_enter_osc, input_exit_osc,
input_state_osc_string_table
};
/* apc_string state definition. */
const struct input_state input_state_apc_string = {
"apc_string",
input_enter_apc, input_exit_apc,
input_state_apc_string_table
};
/* rename_string state definition. */
const struct input_state input_state_rename_string = {
"rename_string",
input_enter_rename, input_exit_rename,
input_state_rename_string_table
};
/* consume_st state definition. */
const struct input_state input_state_consume_st = {
"consume_st",
NULL, NULL,
input_state_consume_st_table
};
/* utf8_three state definition. */
const struct input_state input_state_utf8_three = {
"utf8_three",
NULL, NULL,
input_state_utf8_three_table
};
/* utf8_two state definition. */
const struct input_state input_state_utf8_two = {
"utf8_two",
NULL, NULL,
input_state_utf8_two_table
};
/* utf8_one state definition. */
const struct input_state input_state_utf8_one = {
"utf8_one",
NULL, NULL,
input_state_utf8_one_table
};
/* ground state table. */
const struct input_transition input_state_ground_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x7e, input_print, NULL },
{ 0x7f, 0x7f, NULL, NULL },
{ 0x80, 0xc1, NULL, NULL },
{ 0xc2, 0xdf, input_utf8_open, &input_state_utf8_one },
{ 0xe0, 0xef, input_utf8_open, &input_state_utf8_two },
{ 0xf0, 0xf4, input_utf8_open, &input_state_utf8_three },
{ 0xf5, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* esc_enter state table. */
const struct input_transition input_state_esc_enter_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x2f, input_intermediate, &input_state_esc_intermediate },
{ 0x30, 0x4f, input_esc_dispatch, &input_state_ground },
{ 0x50, 0x50, NULL, &input_state_dcs_enter },
{ 0x51, 0x57, input_esc_dispatch, &input_state_ground },
{ 0x58, 0x58, NULL, &input_state_consume_st },
{ 0x59, 0x59, input_esc_dispatch, &input_state_ground },
{ 0x5a, 0x5a, input_esc_dispatch, &input_state_ground },
{ 0x5b, 0x5b, NULL, &input_state_csi_enter },
{ 0x5c, 0x5c, input_esc_dispatch, &input_state_ground },
{ 0x5d, 0x5d, NULL, &input_state_osc_string },
{ 0x5e, 0x5e, NULL, &input_state_consume_st },
{ 0x5f, 0x5f, NULL, &input_state_apc_string },
{ 0x60, 0x6a, input_esc_dispatch, &input_state_ground },
{ 0x6b, 0x6b, NULL, &input_state_rename_string },
{ 0x6c, 0x7e, input_esc_dispatch, &input_state_ground },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* esc_interm state table. */
const struct input_transition input_state_esc_intermediate_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x2f, input_intermediate, NULL },
{ 0x30, 0x7e, input_esc_dispatch, &input_state_ground },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* csi_enter state table. */
const struct input_transition input_state_csi_enter_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate },
{ 0x30, 0x39, input_parameter, &input_state_csi_parameter },
{ 0x3a, 0x3a, NULL, &input_state_csi_ignore },
{ 0x3b, 0x3b, input_parameter, &input_state_csi_parameter },
{ 0x3c, 0x3f, input_intermediate, &input_state_csi_parameter },
{ 0x40, 0x7e, input_csi_dispatch, &input_state_ground },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* csi_parameter state table. */
const struct input_transition input_state_csi_parameter_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate },
{ 0x30, 0x39, input_parameter, NULL },
{ 0x3a, 0x3a, NULL, &input_state_csi_ignore },
{ 0x3b, 0x3b, input_parameter, NULL },
{ 0x3c, 0x3f, NULL, &input_state_csi_ignore },
{ 0x40, 0x7e, input_csi_dispatch, &input_state_ground },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* csi_intermediate state table. */
const struct input_transition input_state_csi_intermediate_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x2f, input_intermediate, NULL },
{ 0x30, 0x3f, NULL, &input_state_csi_ignore },
{ 0x40, 0x7e, input_csi_dispatch, &input_state_ground },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* csi_ignore state table. */
const struct input_transition input_state_csi_ignore_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, input_c0_dispatch, NULL },
{ 0x19, 0x19, input_c0_dispatch, NULL },
{ 0x1c, 0x1f, input_c0_dispatch, NULL },
{ 0x20, 0x3f, NULL, NULL },
{ 0x40, 0x7e, NULL, &input_state_ground },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* dcs_enter state table. */
const struct input_transition input_state_dcs_enter_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate },
{ 0x30, 0x39, input_parameter, &input_state_dcs_parameter },
{ 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, input_input, &input_state_dcs_handler },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* dcs_parameter state table. */
const struct input_transition input_state_dcs_parameter_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate },
{ 0x30, 0x39, input_parameter, NULL },
{ 0x3a, 0x3a, NULL, &input_state_dcs_ignore },
{ 0x3b, 0x3b, input_parameter, NULL },
{ 0x3c, 0x3f, NULL, &input_state_dcs_ignore },
{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* dcs_interm state table. */
const struct input_transition input_state_dcs_intermediate_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0x2f, input_intermediate, NULL },
{ 0x30, 0x3f, NULL, &input_state_dcs_ignore },
{ 0x40, 0x7e, input_input, &input_state_dcs_handler },
{ 0x7f, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* dcs_handler state table. */
const struct input_transition input_state_dcs_handler_table[] = {
/* No INPUT_STATE_ANYWHERE */
{ 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 }
};
/* dcs_ignore state table. */
const struct input_transition input_state_dcs_ignore_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* osc_string state table. */
const struct input_transition input_state_osc_string_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x06, NULL, NULL },
{ 0x07, 0x07, NULL, &input_state_ground },
{ 0x08, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0xff, input_input, NULL },
{ -1, -1, NULL, NULL }
};
/* apc_string state table. */
const struct input_transition input_state_apc_string_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0xff, input_input, NULL },
{ -1, -1, NULL, NULL }
};
/* rename_string state table. */
const struct input_transition input_state_rename_string_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0xff, input_input, NULL },
{ -1, -1, NULL, NULL }
};
/* consume_st state table. */
const struct input_transition input_state_consume_st_table[] = {
INPUT_STATE_ANYWHERE,
{ 0x00, 0x17, NULL, NULL },
{ 0x19, 0x19, NULL, NULL },
{ 0x1c, 0x1f, NULL, NULL },
{ 0x20, 0xff, NULL, NULL },
{ -1, -1, NULL, NULL }
};
/* utf8_three state table. */
const struct input_transition input_state_utf8_three_table[] = {
/* No INPUT_STATE_ANYWHERE */
{ 0x00, 0x7f, NULL, &input_state_ground },
{ 0x80, 0xbf, input_utf8_add, &input_state_utf8_two },
{ 0xc0, 0xff, NULL, &input_state_ground },
{ -1, -1, NULL, NULL }
};
/* utf8_two state table. */
const struct input_transition input_state_utf8_two_table[] = {
/* No INPUT_STATE_ANYWHERE */
{ 0x00, 0x7f, NULL, &input_state_ground },
{ 0x80, 0xbf, input_utf8_add, &input_state_utf8_one },
{ 0xc0, 0xff, NULL, &input_state_ground },
{ -1, -1, NULL, NULL }
};
/* utf8_one state table. */
const struct input_transition input_state_utf8_one_table[] = {
/* No INPUT_STATE_ANYWHERE */
{ 0x00, 0x7f, NULL, &input_state_ground },
{ 0x80, 0xbf, input_utf8_close, &input_state_ground },
{ 0xc0, 0xff, NULL, &input_state_ground },
{ -1, -1, NULL, NULL }
};
/* Input table compare. */
int
input_table_compare(const void *key, const void *value)
{
const struct input_ctx *ictx = key;
const struct input_table_entry *entry = value;
if (ictx->ch != entry->ch)
return (ictx->ch - entry->ch);
return (strcmp(ictx->interm_buf, entry->interm));
}
/* Reset cell state to default. */
void
input_reset_cell(struct input_ctx *ictx)
{
memcpy(&ictx->cell.cell, &grid_default_cell, sizeof ictx->cell.cell);
ictx->cell.set = 0;
ictx->cell.g0set = ictx->cell.g1set = 0;
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = 0;
ictx->old_cy = 0;
}
/* Initialise input parser. */
void
input_init(struct window_pane *wp)
{
struct input_ctx *ictx;
ictx = wp->ictx = xcalloc(1, sizeof *ictx);
ictx->input_space = INPUT_BUF_START;
ictx->input_buf = xmalloc(INPUT_BUF_START);
ictx->since_ground = evbuffer_new();
input_reset(wp, 0);
}
/* Destroy input parser. */
void
input_free(struct window_pane *wp)
{
struct input_ctx *ictx = wp->ictx;
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, int clear)
{
struct input_ctx *ictx = wp->ictx;
input_reset_cell(ictx);
if (clear) {
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);
}
*ictx->interm_buf = '\0';
ictx->interm_len = 0;
*ictx->param_buf = '\0';
ictx->param_len = 0;
*ictx->input_buf = '\0';
ictx->input_len = 0;
ictx->state = &input_state_ground;
ictx->flags = 0;
}
/* 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;
if (ictx->state->exit != NULL)
ictx->state->exit(ictx);
ictx->state = itr->state;
if (ictx->state->enter != NULL)
ictx->state->enter(ictx);
}
/* Parse input. */
void
input_parse(struct window_pane *wp)
{
struct input_ctx *ictx = wp->ictx;
const struct input_transition *itr;
struct evbuffer *evb = wp->event->input;
u_char *buf;
size_t len, off;
if (EVBUFFER_LENGTH(evb) == 0)
return;
window_update_activity(wp->window);
wp->flags |= PANE_CHANGED;
/*
* Open the screen. Use NULL wp if there is a mode set as don't want to
* update the tty.
*/
if (wp->mode == NULL)
screen_write_start(&ictx->ctx, wp, &wp->base);
else
screen_write_start(&ictx->ctx, NULL, &wp->base);
ictx->wp = wp;
buf = EVBUFFER_DATA(evb);
len = EVBUFFER_LENGTH(evb);
notify_input(wp, evb);
off = 0;
log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id,
ictx->state->name, len, (int)len, buf);
/* Parse the input. */
while (off < len) {
ictx->ch = buf[off++];
/* Find the transition. */
itr = ictx->state->transitions;
while (itr->first != -1 && itr->last != -1) {
if (ictx->ch >= itr->first && ictx->ch <= itr->last)
break;
itr++;
}
if (itr->first == -1 || itr->last == -1) {
/* No transition? Eh? */
fatalx("no transition from state");
}
/*
* Execute the handler, if any. Don't switch state if it
* returns non-zero.
*/
if (itr->handler != NULL && itr->handler(ictx) != 0)
continue;
/* And switch state, if necessary. */
if (itr->state != NULL)
input_set_state(wp, itr);
/* If not in ground state, save input. */
if (ictx->state != &input_state_ground)
evbuffer_add(ictx->since_ground, &ictx->ch, 1);
}
/* Close the screen. */
screen_write_stop(&ictx->ctx);
evbuffer_drain(evb, len);
}
/* Split the parameter list (if any). */
int
input_split(struct input_ctx *ictx)
{
const char *errstr;
char *ptr, *out;
int n;
ictx->param_list_len = 0;
if (ictx->param_len == 0)
return (0);
ptr = ictx->param_buf;
while ((out = strsep(&ptr, ";")) != NULL) {
if (*out == '\0')
n = -1;
else {
n = strtonum(out, 0, INT_MAX, &errstr);
if (errstr != NULL)
return (-1);
}
ictx->param_list[ictx->param_list_len++] = n;
if (ictx->param_list_len == nitems(ictx->param_list))
return (-1);
}
return (0);
}
/* Get an argument or return default value. */
int
input_get(struct input_ctx *ictx, u_int validx, int minval, int defval)
{
int retval;
if (validx >= ictx->param_list_len)
return (defval);
retval = ictx->param_list[validx];
if (retval == -1)
return (defval);
if (retval < minval)
return (minval);
return (retval);
}
/* Reply to terminal query. */
void
input_reply(struct input_ctx *ictx, const char *fmt, ...)
{
va_list ap;
char *reply;
va_start(ap, fmt);
vasprintf(&reply, fmt, ap);
va_end(ap);
bufferevent_write(ictx->wp->event, reply, strlen(reply));
free(reply);
}
/* Clear saved state. */
void
input_clear(struct input_ctx *ictx)
{
*ictx->interm_buf = '\0';
ictx->interm_len = 0;
*ictx->param_buf = '\0';
ictx->param_len = 0;
*ictx->input_buf = '\0';
ictx->input_len = 0;
ictx->flags &= ~INPUT_DISCARD;
}
/* Reset for ground state. */
void
input_ground(struct input_ctx *ictx)
{
evbuffer_drain(ictx->since_ground, EVBUFFER_LENGTH(ictx->since_ground));
if (ictx->input_space > INPUT_BUF_START) {
ictx->input_space = INPUT_BUF_START;
ictx->input_buf = xrealloc(ictx->input_buf, INPUT_BUF_START);
}
}
/* Output this character to the screen. */
int
input_print(struct input_ctx *ictx)
{
int set;
set = ictx->cell.set == 0 ? ictx->cell.g0set : ictx->cell.g1set;
if (set == 1)
ictx->cell.cell.attr |= GRID_ATTR_CHARSET;
else
ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET;
utf8_set(&ictx->cell.cell.data, ictx->ch);
screen_write_cell(&ictx->ctx, &ictx->cell.cell);
ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET;
return (0);
}
/* Collect intermediate string. */
int
input_intermediate(struct input_ctx *ictx)
{
if (ictx->interm_len == (sizeof ictx->interm_buf) - 1)
ictx->flags |= INPUT_DISCARD;
else {
ictx->interm_buf[ictx->interm_len++] = ictx->ch;
ictx->interm_buf[ictx->interm_len] = '\0';
}
return (0);
}
/* Collect parameter string. */
int
input_parameter(struct input_ctx *ictx)
{
if (ictx->param_len == (sizeof ictx->param_buf) - 1)
ictx->flags |= INPUT_DISCARD;
else {
ictx->param_buf[ictx->param_len++] = ictx->ch;
ictx->param_buf[ictx->param_len] = '\0';
}
return (0);
}
/* Collect input string. */
int
input_input(struct input_ctx *ictx)
{
size_t available;
available = ictx->input_space;
while (ictx->input_len + 1 >= available) {
available *= 2;
if (available > INPUT_BUF_LIMIT) {
ictx->flags |= INPUT_DISCARD;
return (0);
}
ictx->input_buf = xrealloc(ictx->input_buf, available);
ictx->input_space = available;
}
ictx->input_buf[ictx->input_len++] = ictx->ch;
ictx->input_buf[ictx->input_len] = '\0';
return (0);
}
/* Execute C0 control sequence. */
int
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;
log_debug("%s: '%c'", __func__, ictx->ch);
switch (ictx->ch) {
case '\000': /* NUL */
break;
case '\007': /* BEL */
alerts_queue(wp->window, WINDOW_BELL);
break;
case '\010': /* BS */
screen_write_backspace(sctx);
break;
case '\011': /* HT */
/* Don't tab beyond the end of the line. */
if (s->cx >= screen_size_x(s) - 1)
break;
/* Find the next tab point, or use the last column if none. */
do {
s->cx++;
if (bit_test(s->tabs, s->cx))
break;
} while (s->cx < screen_size_x(s) - 1);
break;
case '\012': /* LF */
case '\013': /* VT */
case '\014': /* FF */
screen_write_linefeed(sctx, 0);
break;
case '\015': /* CR */
screen_write_carriagereturn(sctx);
break;
case '\016': /* SO */
ictx->cell.set = 1;
break;
case '\017': /* SI */
ictx->cell.set = 0;
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
return (0);
}
/* Execute escape sequence. */
int
input_esc_dispatch(struct input_ctx *ictx)
{
struct screen_write_ctx *sctx = &ictx->ctx;
struct screen *s = sctx->s;
struct input_table_entry *entry;
if (ictx->flags & INPUT_DISCARD)
return (0);
log_debug("%s: '%c', %s", __func__, ictx->ch, ictx->interm_buf);
entry = bsearch(ictx, input_esc_table, nitems(input_esc_table),
sizeof input_esc_table[0], input_table_compare);
if (entry == NULL) {
log_debug("%s: unknown '%c'", __func__, ictx->ch);
return (0);
}
switch (entry->type) {
case INPUT_ESC_RIS:
input_reset_cell(ictx);
screen_write_reset(sctx);
break;
case INPUT_ESC_IND:
screen_write_linefeed(sctx, 0);
break;
case INPUT_ESC_NEL:
screen_write_carriagereturn(sctx);
screen_write_linefeed(sctx, 0);
break;
case INPUT_ESC_HTS:
if (s->cx < screen_size_x(s))
bit_set(s->tabs, s->cx);
break;
case INPUT_ESC_RI:
screen_write_reverseindex(sctx);
break;
case INPUT_ESC_DECKPAM:
screen_write_mode_set(sctx, MODE_KKEYPAD);
break;
case INPUT_ESC_DECKPNM:
screen_write_mode_clear(sctx, MODE_KKEYPAD);
break;
case INPUT_ESC_DECSC:
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = s->cx;
ictx->old_cy = s->cy;
break;
case INPUT_ESC_DECRC:
memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
break;
case INPUT_ESC_DECALN:
screen_write_alignmenttest(sctx);
break;
case INPUT_ESC_SCSG0_ON:
ictx->cell.g0set = 1;
break;
case INPUT_ESC_SCSG0_OFF:
ictx->cell.g0set = 0;
break;
case INPUT_ESC_SCSG1_ON:
ictx->cell.g1set = 1;
break;
case INPUT_ESC_SCSG1_OFF:
ictx->cell.g1set = 0;
break;
}
return (0);
}
/* Execute control sequence. */
int
input_csi_dispatch(struct input_ctx *ictx)
{
struct screen_write_ctx *sctx = &ictx->ctx;
struct screen *s = sctx->s;
struct input_table_entry *entry;
int n, m;
u_int cx;
if (ictx->flags & INPUT_DISCARD)
return (0);
if (input_split(ictx) != 0)
return (0);
log_debug("%s: '%c' \"%s\" \"%s\"",
__func__, ictx->ch, ictx->interm_buf, ictx->param_buf);
entry = bsearch(ictx, input_csi_table, nitems(input_csi_table),
sizeof input_csi_table[0], input_table_compare);
if (entry == NULL) {
log_debug("%s: unknown '%c'", __func__, ictx->ch);
return (0);
}
switch (entry->type) {
case INPUT_CSI_CBT:
/* Find the previous tab point, n times. */
cx = s->cx;
if (cx > screen_size_x(s) - 1)
cx = screen_size_x(s) - 1;
n = input_get(ictx, 0, 1, 1);
while (cx > 0 && n-- > 0) {
do
cx--;
while (cx > 0 && !bit_test(s->tabs, cx));
}
s->cx = cx;
break;
case INPUT_CSI_CUB:
screen_write_cursorleft(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CUD:
screen_write_cursordown(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CUF:
screen_write_cursorright(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CUP:
n = input_get(ictx, 0, 1, 1);
m = input_get(ictx, 1, 1, 1);
screen_write_cursormove(sctx, m - 1, n - 1);
break;
case INPUT_CSI_WINOPS:
input_csi_dispatch_winops(ictx);
break;
case INPUT_CSI_CUU:
screen_write_cursorup(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CNL:
screen_write_carriagereturn(sctx);
screen_write_cursordown(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CPL:
screen_write_carriagereturn(sctx);
screen_write_cursorup(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DA:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
input_reply(ictx, "\033[?1;2c");
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_DA_TWO:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
input_reply(ictx, "\033[>84;0;0c");
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_ECH:
screen_write_clearcharacter(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DCH:
screen_write_deletecharacter(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DECSTBM:
n = input_get(ictx, 0, 1, 1);
m = input_get(ictx, 1, 1, screen_size_y(s));
screen_write_scrollregion(sctx, n - 1, m - 1);
break;
case INPUT_CSI_DL:
screen_write_deleteline(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DSR:
switch (input_get(ictx, 0, 0, 0)) {
case 5:
input_reply(ictx, "\033[0n");
break;
case 6:
input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_ED:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
screen_write_clearendofscreen(sctx);
break;
case 1:
screen_write_clearstartofscreen(sctx);
break;
case 2:
screen_write_clearscreen(sctx);
break;
case 3:
switch (input_get(ictx, 1, 0, 0)) {
case 0:
/*
* Linux console extension to clear history
* (for example before locking the screen).
*/
screen_write_clearhistory(sctx);
break;
}
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_EL:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
screen_write_clearendofline(sctx);
break;
case 1:
screen_write_clearstartofline(sctx);
break;
case 2:
screen_write_clearline(sctx);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_HPA:
n = input_get(ictx, 0, 1, 1);
screen_write_cursormove(sctx, n - 1, s->cy);
break;
case INPUT_CSI_ICH:
screen_write_insertcharacter(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_IL:
screen_write_insertline(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_RCP:
memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
break;
case INPUT_CSI_RM:
input_csi_dispatch_rm(ictx);
break;
case INPUT_CSI_RM_PRIVATE:
input_csi_dispatch_rm_private(ictx);
break;
case INPUT_CSI_SCP:
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = s->cx;
ictx->old_cy = s->cy;
break;
case INPUT_CSI_SGR:
input_csi_dispatch_sgr(ictx);
break;
case INPUT_CSI_SM:
input_csi_dispatch_sm(ictx);
break;
case INPUT_CSI_SM_PRIVATE:
input_csi_dispatch_sm_private(ictx);
break;
case INPUT_CSI_TBC:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
if (s->cx < screen_size_x(s))
bit_clear(s->tabs, s->cx);
break;
case 3:
bit_nclear(s->tabs, 0, screen_size_x(s) - 1);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_VPA:
n = input_get(ictx, 0, 1, 1);
screen_write_cursormove(sctx, s->cx, n - 1);
break;
case INPUT_CSI_DECSCUSR:
n = input_get(ictx, 0, 0, 0);
screen_set_cursor_style(s, n);
break;
}
return (0);
}
/* Handle CSI RM. */
void
input_csi_dispatch_rm(struct input_ctx *ictx)
{
u_int i;
for (i = 0; i < ictx->param_list_len; i++) {
switch (input_get(ictx, i, 0, -1)) {
case 4: /* IRM */
screen_write_mode_clear(&ictx->ctx, MODE_INSERT);
break;
case 34:
screen_write_mode_set(&ictx->ctx, MODE_BLINKING);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
}
}
/* Handle CSI private RM. */
void
input_csi_dispatch_rm_private(struct input_ctx *ictx)
{
struct window_pane *wp = ictx->wp;
u_int i;
for (i = 0; i < ictx->param_list_len; i++) {
switch (input_get(ictx, i, 0, -1)) {
case 1: /* DECCKM */
screen_write_mode_clear(&ictx->ctx, MODE_KCURSOR);
break;
case 3: /* DECCOLM */
screen_write_cursormove(&ictx->ctx, 0, 0);
screen_write_clearscreen(&ictx->ctx);
break;
case 7: /* DECAWM */
screen_write_mode_clear(&ictx->ctx, MODE_WRAP);
break;
case 12:
screen_write_mode_clear(&ictx->ctx, MODE_BLINKING);
break;
case 25: /* TCEM */
screen_write_mode_clear(&ictx->ctx, MODE_CURSOR);
break;
case 1000:
case 1001:
case 1002:
screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
break;
case 1004:
screen_write_mode_clear(&ictx->ctx, MODE_FOCUSON);
break;
case 1005:
screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_UTF8);
break;
case 1006:
screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_SGR);
break;
case 47:
case 1047:
window_pane_alternate_off(wp, &ictx->cell.cell, 0);
break;
case 1049:
window_pane_alternate_off(wp, &ictx->cell.cell, 1);
break;
case 2004:
screen_write_mode_clear(&ictx->ctx, MODE_BRACKETPASTE);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
}
}
/* Handle CSI SM. */
void
input_csi_dispatch_sm(struct input_ctx *ictx)
{
u_int i;
for (i = 0; i < ictx->param_list_len; i++) {
switch (input_get(ictx, i, 0, -1)) {
case 4: /* IRM */
screen_write_mode_set(&ictx->ctx, MODE_INSERT);
break;
case 34:
screen_write_mode_clear(&ictx->ctx, MODE_BLINKING);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
}
}
/* Handle CSI private SM. */
void
input_csi_dispatch_sm_private(struct input_ctx *ictx)
{
struct window_pane *wp = ictx->wp;
u_int i;
for (i = 0; i < ictx->param_list_len; i++) {
switch (input_get(ictx, i, 0, -1)) {
case 1: /* DECCKM */
screen_write_mode_set(&ictx->ctx, MODE_KCURSOR);
break;
case 3: /* DECCOLM */
screen_write_cursormove(&ictx->ctx, 0, 0);
screen_write_clearscreen(&ictx->ctx);
break;
case 7: /* DECAWM */
screen_write_mode_set(&ictx->ctx, MODE_WRAP);
break;
case 12:
screen_write_mode_set(&ictx->ctx, MODE_BLINKING);
break;
case 25: /* TCEM */
screen_write_mode_set(&ictx->ctx, MODE_CURSOR);
break;
case 1000:
screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
screen_write_mode_set(&ictx->ctx, MODE_MOUSE_STANDARD);
break;
case 1002:
screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
screen_write_mode_set(&ictx->ctx, MODE_MOUSE_BUTTON);
break;
case 1004:
if (ictx->ctx.s->mode & MODE_FOCUSON)
break;
screen_write_mode_set(&ictx->ctx, MODE_FOCUSON);
wp->flags |= PANE_FOCUSPUSH; /* force update */
break;
case 1005:
screen_write_mode_set(&ictx->ctx, MODE_MOUSE_UTF8);
break;
case 1006:
screen_write_mode_set(&ictx->ctx, MODE_MOUSE_SGR);
break;
case 47:
case 1047:
window_pane_alternate_on(wp, &ictx->cell.cell, 0);
break;
case 1049:
window_pane_alternate_on(wp, &ictx->cell.cell, 1);
break;
case 2004:
screen_write_mode_set(&ictx->ctx, MODE_BRACKETPASTE);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
}
}
/* Handle CSI window operations. */
void
input_csi_dispatch_winops(struct input_ctx *ictx)
{
struct window_pane *wp = ictx->wp;
int n, m;
m = 0;
while ((n = input_get(ictx, m, 0, -1)) != -1) {
switch (n) {
case 1:
case 2:
case 5:
case 6:
case 7:
case 11:
case 13:
case 14:
case 19:
case 20:
case 21:
case 24:
break;
case 3:
case 4:
case 8:
m++;
if (input_get(ictx, m, 0, -1) == -1)
return;
/* FALLTHROUGH */
case 9:
case 10:
case 22:
case 23:
m++;
if (input_get(ictx, m, 0, -1) == -1)
return;
break;
case 18:
input_reply(ictx, "\033[8;%u;%ut", wp->sy, wp->sx);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
m++;
}
}
/* Handle CSI SGR for 256 colours. */
void
input_csi_dispatch_sgr_256(struct input_ctx *ictx, int fgbg, u_int *i)
{
struct grid_cell *gc = &ictx->cell.cell;
int c;
(*i)++;
c = input_get(ictx, *i, 0, -1);
if (c == -1) {
if (fgbg == 38)
gc->fg = 8;
else if (fgbg == 48)
gc->bg = 8;
} else {
if (fgbg == 38)
gc->fg = c | COLOUR_FLAG_256;
else if (fgbg == 48)
gc->bg = c | COLOUR_FLAG_256;
}
}
/* Handle CSI SGR for RGB colours. */
void
input_csi_dispatch_sgr_rgb(struct input_ctx *ictx, int fgbg, u_int *i)
{
struct grid_cell *gc = &ictx->cell.cell;
int r, g, b;
(*i)++;
r = input_get(ictx, *i, 0, -1);
if (r == -1 || r > 255)
return;
(*i)++;
g = input_get(ictx, *i, 0, -1);
if (g == -1 || g > 255)
return;
(*i)++;
b = input_get(ictx, *i, 0, -1);
if (b == -1 || b > 255)
return;
if (fgbg == 38)
gc->fg = colour_join_rgb(r, g, b);
else if (fgbg == 48)
gc->bg = colour_join_rgb(r, g, b);
}
/* Handle CSI SGR. */
void
input_csi_dispatch_sgr(struct input_ctx *ictx)
{
struct grid_cell *gc = &ictx->cell.cell;
u_int i;
int n;
if (ictx->param_list_len == 0) {
memcpy(gc, &grid_default_cell, sizeof *gc);
return;
}
for (i = 0; i < ictx->param_list_len; i++) {
n = input_get(ictx, i, 0, 0);
if (n == 38 || n == 48) {
i++;
switch (input_get(ictx, i, 0, -1)) {
case 2:
input_csi_dispatch_sgr_rgb(ictx, n, &i);
break;
case 5:
input_csi_dispatch_sgr_256(ictx, n, &i);
break;
}
continue;
}
switch (n) {
case 0:
case 10:
memcpy(gc, &grid_default_cell, sizeof *gc);
break;
case 1:
gc->attr |= GRID_ATTR_BRIGHT;
break;
case 2:
gc->attr |= GRID_ATTR_DIM;
break;
case 3:
gc->attr |= GRID_ATTR_ITALICS;
break;
case 4:
gc->attr |= GRID_ATTR_UNDERSCORE;
break;
case 5:
gc->attr |= GRID_ATTR_BLINK;
break;
case 7:
gc->attr |= GRID_ATTR_REVERSE;
break;
case 8:
gc->attr |= GRID_ATTR_HIDDEN;
break;
case 22:
gc->attr &= ~(GRID_ATTR_BRIGHT|GRID_ATTR_DIM);
break;
case 23:
gc->attr &= ~GRID_ATTR_ITALICS;
break;
case 24:
gc->attr &= ~GRID_ATTR_UNDERSCORE;
break;
case 25:
gc->attr &= ~GRID_ATTR_BLINK;
break;
case 27:
gc->attr &= ~GRID_ATTR_REVERSE;
break;
case 30:
case 31:
case 32:
case 33:
case 34:
case 35:
case 36:
case 37:
gc->fg = n - 30;
break;
case 39:
gc->fg = 8;
break;
case 40:
case 41:
case 42:
case 43:
case 44:
case 45:
case 46:
case 47:
gc->bg = n - 40;
break;
case 49:
gc->bg = 8;
break;
case 90:
case 91:
case 92:
case 93:
case 94:
case 95:
case 96:
case 97:
gc->fg = n;
break;
case 100:
case 101:
case 102:
case 103:
case 104:
case 105:
case 106:
case 107:
gc->bg = n - 10;
break;
}
}
}
/* DCS terminator (ST) received. */
int
input_dcs_dispatch(struct input_ctx *ictx)
{
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. */
void
input_enter_osc(struct input_ctx *ictx)
{
log_debug("%s", __func__);
input_clear(ictx);
}
/* OSC terminator (ST) received. */
void
input_exit_osc(struct input_ctx *ictx)
{
u_char *p = ictx->input_buf;
u_int option;
if (ictx->flags & INPUT_DISCARD)
return;
if (ictx->input_len < 1 || *p < '0' || *p > '9')
return;
log_debug("%s: \"%s\"", __func__, p);
option = 0;
while (*p >= '0' && *p <= '9')
option = option * 10 + *p++ - '0';
if (*p == ';')
p++;
switch (option) {
case 0:
case 2:
screen_set_title(ictx->ctx.s, p);
server_status_window(ictx->wp->window);
break;
case 12:
if (*p != '?') /* ? is colour request */
screen_set_cursor_colour(ictx->ctx.s, p);
break;
case 112:
if (*p == '\0') /* no arguments allowed */
screen_set_cursor_colour(ictx->ctx.s, "");
break;
default:
log_debug("%s: unknown '%u'", __func__, option);
break;
}
}
/* APC string started. */
void
input_enter_apc(struct input_ctx *ictx)
{
log_debug("%s", __func__);
input_clear(ictx);
}
/* APC terminator (ST) received. */
void
input_exit_apc(struct input_ctx *ictx)
{
if (ictx->flags & INPUT_DISCARD)
return;
log_debug("%s: \"%s\"", __func__, ictx->input_buf);
screen_set_title(ictx->ctx.s, ictx->input_buf);
server_status_window(ictx->wp->window);
}
/* Rename string started. */
void
input_enter_rename(struct input_ctx *ictx)
{
log_debug("%s", __func__);
input_clear(ictx);
}
/* Rename terminator (ST) received. */
void
input_exit_rename(struct input_ctx *ictx)
{
if (ictx->flags & INPUT_DISCARD)
return;
if (!options_get_number(ictx->wp->window->options, "allow-rename"))
return;
log_debug("%s: \"%s\"", __func__, ictx->input_buf);
window_set_name(ictx->wp->window, ictx->input_buf);
options_set_number(ictx->wp->window->options, "automatic-rename", 0);
server_status_window(ictx->wp->window);
}
/* Open UTF-8 character. */
int
input_utf8_open(struct input_ctx *ictx)
{
struct utf8_data *ud = &ictx->utf8data;
if (utf8_open(ud, ictx->ch) != UTF8_MORE)
fatalx("UTF-8 open invalid %#x", ictx->ch);
log_debug("%s %hhu", __func__, ud->size);
return (0);
}
/* Append to UTF-8 character. */
int
input_utf8_add(struct input_ctx *ictx)
{
struct utf8_data *ud = &ictx->utf8data;
if (utf8_append(ud, ictx->ch) != UTF8_MORE)
fatalx("UTF-8 add invalid %#x", ictx->ch);
log_debug("%s", __func__);
return (0);
}
/* Close UTF-8 string. */
int
input_utf8_close(struct input_ctx *ictx)
{
struct utf8_data *ud = &ictx->utf8data;
if (utf8_append(ud, ictx->ch) != UTF8_DONE) {
/*
* An error here could be invalid UTF-8 or it could be a
* nonprintable character for which we can't get the
* width. Drop it.
*/
return (0);
}
log_debug("%s %hhu '%*s' (width %hhu)", __func__, ud->size,
(int)ud->size, ud->data, ud->width);
utf8_copy(&ictx->cell.cell.data, ud);
screen_write_cell(&ictx->ctx, &ictx->cell.cell);
return (0);
}
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