/* $Id: input.c,v 1.115 2011-02-15 15:21:14 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* 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 "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.
*/
/* Helper functions. */
int input_split(struct input_ctx *);
int input_get(struct input_ctx *, u_int, int, int);
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 *);
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_sgr(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_SCSOFF_G0,
INPUT_ESC_SCSON_G0,
};
/* Escape command table. */
const struct input_table_entry input_esc_table[] = {
{ '0', "(", INPUT_ESC_SCSOFF_G0 },
{ '7', "", INPUT_ESC_DECSC },
{ '8', "", INPUT_ESC_DECRC },
{ '8',
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