mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
761 lines
19 KiB
C
761 lines
19 KiB
C
/* terminal.c -- controlling the terminal with termcap. */
|
|
|
|
/* Copyright (C) 1996-2005 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU Readline Library, a library for
|
|
reading lines of text with interactive input and history editing.
|
|
|
|
The GNU Readline Library is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2, or
|
|
(at your option) any later version.
|
|
|
|
The GNU Readline Library is distributed in the hope that it will be
|
|
useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
|
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
The GNU General Public License is often shipped with GNU software, and
|
|
is generally kept in a file called COPYING or LICENSE. If you do not
|
|
have a copy of the license, write to the Free Software Foundation,
|
|
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
|
|
#define READLINE_LIBRARY
|
|
|
|
#if defined (HAVE_CONFIG_H)
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include "posixstat.h"
|
|
#include <fcntl.h>
|
|
#if defined (HAVE_SYS_FILE_H)
|
|
# include <sys/file.h>
|
|
#endif /* HAVE_SYS_FILE_H */
|
|
|
|
#if defined (HAVE_UNISTD_H)
|
|
# include <unistd.h>
|
|
#endif /* HAVE_UNISTD_H */
|
|
|
|
#if defined (HAVE_STDLIB_H)
|
|
# include <stdlib.h>
|
|
#else
|
|
# include "ansi_stdlib.h"
|
|
#endif /* HAVE_STDLIB_H */
|
|
|
|
#if defined (HAVE_LOCALE_H)
|
|
# include <locale.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
/* System-specific feature definitions and include files. */
|
|
#include "rldefs.h"
|
|
|
|
#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
|
|
# include <sys/ioctl.h>
|
|
#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
|
|
|
|
#ifdef __MSDOS__
|
|
# include <pc.h>
|
|
#endif
|
|
|
|
#include "rltty.h"
|
|
#include "tcap.h"
|
|
|
|
/* Some standard library routines. */
|
|
#include "readline.h"
|
|
#include "history.h"
|
|
|
|
#include "rlprivate.h"
|
|
#include "rlshell.h"
|
|
#include "xmalloc.h"
|
|
|
|
#if defined (__MINGW32__)
|
|
# include <windows.h>
|
|
# include <wincon.h>
|
|
#endif
|
|
|
|
#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
|
|
#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
|
|
|
|
int rl_prefer_env_winsize;
|
|
|
|
/* **************************************************************** */
|
|
/* */
|
|
/* Terminal and Termcap */
|
|
/* */
|
|
/* **************************************************************** */
|
|
|
|
#ifndef __MSDOS__
|
|
static char *term_buffer = (char *)NULL;
|
|
static char *term_string_buffer = (char *)NULL;
|
|
#endif /* !__MSDOS__ */
|
|
|
|
static int tcap_initialized;
|
|
|
|
#if !defined (__linux__)
|
|
# if defined (__EMX__) || defined (NEED_EXTERN_PC)
|
|
extern
|
|
# endif /* __EMX__ || NEED_EXTERN_PC */
|
|
char PC, *BC, *UP;
|
|
#endif /* __linux__ */
|
|
|
|
/* Some strings to control terminal actions. These are output by tputs (). */
|
|
char *_rl_term_clreol;
|
|
char *_rl_term_clrpag;
|
|
char *_rl_term_cr;
|
|
char *_rl_term_backspace;
|
|
char *_rl_term_goto;
|
|
char *_rl_term_pc;
|
|
|
|
/* Non-zero if we determine that the terminal can do character insertion. */
|
|
int _rl_terminal_can_insert = 0;
|
|
|
|
/* How to insert characters. */
|
|
char *_rl_term_im;
|
|
char *_rl_term_ei;
|
|
char *_rl_term_ic;
|
|
char *_rl_term_ip;
|
|
char *_rl_term_IC;
|
|
|
|
/* How to delete characters. */
|
|
char *_rl_term_dc;
|
|
char *_rl_term_DC;
|
|
|
|
#if defined (HACK_TERMCAP_MOTION)
|
|
char *_rl_term_forward_char;
|
|
#endif /* HACK_TERMCAP_MOTION */
|
|
|
|
/* How to go up a line. */
|
|
char *_rl_term_up;
|
|
|
|
/* A visible bell; char if the terminal can be made to flash the screen. */
|
|
static char *_rl_visible_bell;
|
|
|
|
/* Non-zero means the terminal can auto-wrap lines. */
|
|
int _rl_term_autowrap = -1;
|
|
|
|
/* Non-zero means that this terminal has a meta key. */
|
|
static int term_has_meta;
|
|
|
|
/* The sequences to write to turn on and off the meta key, if this
|
|
terminal has one. */
|
|
static char *_rl_term_mm;
|
|
static char *_rl_term_mo;
|
|
|
|
/* The key sequences output by the arrow keys, if this terminal has any. */
|
|
static char *_rl_term_ku;
|
|
static char *_rl_term_kd;
|
|
static char *_rl_term_kr;
|
|
static char *_rl_term_kl;
|
|
|
|
/* How to initialize and reset the arrow keys, if this terminal has any. */
|
|
static char *_rl_term_ks;
|
|
static char *_rl_term_ke;
|
|
|
|
/* The key sequences sent by the Home and End keys, if any. */
|
|
static char *_rl_term_kh;
|
|
static char *_rl_term_kH;
|
|
static char *_rl_term_at7; /* @7 */
|
|
|
|
/* Delete key */
|
|
static char *_rl_term_kD;
|
|
|
|
/* Insert key */
|
|
static char *_rl_term_kI;
|
|
|
|
/* Cursor control */
|
|
static char *_rl_term_vs; /* very visible */
|
|
static char *_rl_term_ve; /* normal */
|
|
|
|
static void bind_termcap_arrow_keys PARAMS((Keymap));
|
|
|
|
/* Variables that hold the screen dimensions, used by the display code. */
|
|
int _rl_screenwidth, _rl_screenheight, _rl_screenchars;
|
|
|
|
/* Non-zero means the user wants to enable the keypad. */
|
|
int _rl_enable_keypad;
|
|
|
|
/* Non-zero means the user wants to enable a meta key. */
|
|
int _rl_enable_meta = 1;
|
|
|
|
#if defined (__EMX__)
|
|
static void
|
|
_emx_get_screensize (swp, shp)
|
|
int *swp, *shp;
|
|
{
|
|
int sz[2];
|
|
|
|
_scrsize (sz);
|
|
|
|
if (swp)
|
|
*swp = sz[0];
|
|
if (shp)
|
|
*shp = sz[1];
|
|
}
|
|
#endif
|
|
|
|
/* Get readline's idea of the screen size. TTY is a file descriptor open
|
|
to the terminal. If IGNORE_ENV is true, we do not pay attention to the
|
|
values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being
|
|
non-null serve to check whether or not we have initialized termcap. */
|
|
void
|
|
_rl_get_screen_size (tty, ignore_env)
|
|
int tty, ignore_env;
|
|
{
|
|
char *ss;
|
|
#if defined (TIOCGWINSZ)
|
|
struct winsize window_size;
|
|
#endif /* TIOCGWINSZ */
|
|
int wr, wc;
|
|
|
|
wr = wc = -1;
|
|
#if defined (TIOCGWINSZ)
|
|
if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
|
|
{
|
|
wc = (int) window_size.ws_col;
|
|
wr = (int) window_size.ws_row;
|
|
}
|
|
#endif /* TIOCGWINSZ */
|
|
|
|
/* For MinGW, we get the console size from the Windows API. */
|
|
#if defined (__MINGW32__)
|
|
HANDLE hConOut = GetStdHandle (STD_OUTPUT_HANDLE);
|
|
if (hConOut != INVALID_HANDLE_VALUE)
|
|
{
|
|
CONSOLE_SCREEN_BUFFER_INFO scr;
|
|
if (GetConsoleScreenBufferInfo (hConOut, &scr))
|
|
{
|
|
_rl_screenwidth = scr.dwSize.X;
|
|
_rl_screenheight = scr.srWindow.Bottom - scr.srWindow.Top + 1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined (__EMX__)
|
|
_emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
|
|
#endif
|
|
|
|
if (ignore_env || rl_prefer_env_winsize == 0)
|
|
{
|
|
_rl_screenwidth = wc;
|
|
_rl_screenheight = wr;
|
|
}
|
|
else
|
|
_rl_screenwidth = _rl_screenheight = -1;
|
|
|
|
/* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
|
|
is unset. If we prefer the environment, check it first before
|
|
assigning the value returned by the kernel. */
|
|
if (_rl_screenwidth <= 0)
|
|
{
|
|
if (ignore_env == 0 && (ss = sh_get_env_value ("COLUMNS")))
|
|
_rl_screenwidth = atoi (ss);
|
|
|
|
if (_rl_screenwidth <= 0)
|
|
_rl_screenwidth = wc;
|
|
|
|
#if defined (__DJGPP__)
|
|
if (_rl_screenwidth <= 0)
|
|
_rl_screenwidth = ScreenCols ();
|
|
#else
|
|
if (_rl_screenwidth <= 0 && term_string_buffer)
|
|
_rl_screenwidth = tgetnum ("co");
|
|
#endif
|
|
}
|
|
|
|
/* Environment variable LINES overrides setting of "li" if IGNORE_ENV
|
|
is unset. */
|
|
if (_rl_screenheight <= 0)
|
|
{
|
|
if (ignore_env == 0 && (ss = sh_get_env_value ("LINES")))
|
|
_rl_screenheight = atoi (ss);
|
|
|
|
if (_rl_screenheight <= 0)
|
|
_rl_screenheight = wr;
|
|
|
|
#if defined (__DJGPP__)
|
|
if (_rl_screenheight <= 0)
|
|
_rl_screenheight = ScreenRows ();
|
|
#else
|
|
if (_rl_screenheight <= 0 && term_string_buffer)
|
|
_rl_screenheight = tgetnum ("li");
|
|
#endif
|
|
}
|
|
|
|
/* If all else fails, default to 80x24 terminal. */
|
|
if (_rl_screenwidth <= 1)
|
|
_rl_screenwidth = 80;
|
|
|
|
if (_rl_screenheight <= 0)
|
|
_rl_screenheight = 24;
|
|
|
|
/* If we're being compiled as part of bash, set the environment
|
|
variables $LINES and $COLUMNS to new values. Otherwise, just
|
|
do a pair of putenv () or setenv () calls. */
|
|
sh_set_lines_and_columns (_rl_screenheight, _rl_screenwidth);
|
|
|
|
if (_rl_term_autowrap == 0)
|
|
_rl_screenwidth--;
|
|
|
|
_rl_screenchars = _rl_screenwidth * _rl_screenheight;
|
|
}
|
|
|
|
void
|
|
_rl_set_screen_size (rows, cols)
|
|
int rows, cols;
|
|
{
|
|
if (_rl_term_autowrap == -1)
|
|
_rl_init_terminal_io (rl_terminal_name);
|
|
|
|
if (rows > 0)
|
|
_rl_screenheight = rows;
|
|
if (cols > 0)
|
|
{
|
|
_rl_screenwidth = cols;
|
|
if (_rl_term_autowrap == 0)
|
|
_rl_screenwidth--;
|
|
}
|
|
|
|
if (rows > 0 || cols > 0)
|
|
_rl_screenchars = _rl_screenwidth * _rl_screenheight;
|
|
}
|
|
|
|
void
|
|
rl_set_screen_size (rows, cols)
|
|
int rows, cols;
|
|
{
|
|
_rl_set_screen_size (rows, cols);
|
|
}
|
|
|
|
void
|
|
rl_get_screen_size (rows, cols)
|
|
int *rows, *cols;
|
|
{
|
|
if (rows)
|
|
*rows = _rl_screenheight;
|
|
if (cols)
|
|
*cols = _rl_screenwidth;
|
|
}
|
|
|
|
void
|
|
rl_reset_screen_size ()
|
|
{
|
|
_rl_get_screen_size (fileno (rl_instream), 0);
|
|
}
|
|
|
|
void
|
|
rl_resize_terminal ()
|
|
{
|
|
if (readline_echoing_p)
|
|
{
|
|
_rl_get_screen_size (fileno (rl_instream), 1);
|
|
if (CUSTOM_REDISPLAY_FUNC ())
|
|
rl_forced_update_display ();
|
|
else
|
|
_rl_redisplay_after_sigwinch ();
|
|
}
|
|
}
|
|
|
|
struct _tc_string {
|
|
const char *tc_var;
|
|
char **tc_value;
|
|
};
|
|
|
|
/* This should be kept sorted, just in case we decide to change the
|
|
search algorithm to something smarter. */
|
|
static struct _tc_string tc_strings[] =
|
|
{
|
|
{ "@7", &_rl_term_at7 },
|
|
{ "DC", &_rl_term_DC },
|
|
{ "IC", &_rl_term_IC },
|
|
{ "ce", &_rl_term_clreol },
|
|
{ "cl", &_rl_term_clrpag },
|
|
{ "cr", &_rl_term_cr },
|
|
{ "dc", &_rl_term_dc },
|
|
{ "ei", &_rl_term_ei },
|
|
{ "ic", &_rl_term_ic },
|
|
{ "im", &_rl_term_im },
|
|
{ "kD", &_rl_term_kD }, /* delete */
|
|
{ "kH", &_rl_term_kH }, /* home down ?? */
|
|
{ "kI", &_rl_term_kI }, /* insert */
|
|
{ "kd", &_rl_term_kd },
|
|
{ "ke", &_rl_term_ke }, /* end keypad mode */
|
|
{ "kh", &_rl_term_kh }, /* home */
|
|
{ "kl", &_rl_term_kl },
|
|
{ "kr", &_rl_term_kr },
|
|
{ "ks", &_rl_term_ks }, /* start keypad mode */
|
|
{ "ku", &_rl_term_ku },
|
|
{ "le", &_rl_term_backspace },
|
|
{ "mm", &_rl_term_mm },
|
|
{ "mo", &_rl_term_mo },
|
|
#if defined (HACK_TERMCAP_MOTION)
|
|
{ "nd", &_rl_term_forward_char },
|
|
#endif
|
|
{ "pc", &_rl_term_pc },
|
|
{ "up", &_rl_term_up },
|
|
{ "vb", &_rl_visible_bell },
|
|
{ "vs", &_rl_term_vs },
|
|
{ "ve", &_rl_term_ve },
|
|
};
|
|
|
|
#define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string))
|
|
|
|
/* Read the desired terminal capability strings into BP. The capabilities
|
|
are described in the TC_STRINGS table. */
|
|
static void
|
|
get_term_capabilities (bp)
|
|
char **bp;
|
|
{
|
|
#if !defined (__DJGPP__) /* XXX - doesn't DJGPP have a termcap library? */
|
|
register int i;
|
|
|
|
for (i = 0; i < NUM_TC_STRINGS; i++)
|
|
*(tc_strings[i].tc_value) = tgetstr ((char *)tc_strings[i].tc_var, bp);
|
|
#endif
|
|
tcap_initialized = 1;
|
|
}
|
|
|
|
int
|
|
_rl_init_terminal_io (terminal_name)
|
|
const char *terminal_name;
|
|
{
|
|
const char *term;
|
|
char *buffer;
|
|
int tty, tgetent_ret;
|
|
|
|
term = terminal_name ? terminal_name : sh_get_env_value ("TERM");
|
|
_rl_term_clrpag = _rl_term_cr = _rl_term_clreol = (char *)NULL;
|
|
tty = rl_instream ? fileno (rl_instream) : 0;
|
|
|
|
if (term == 0)
|
|
term = "dumb";
|
|
|
|
#ifdef __MSDOS__
|
|
_rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL;
|
|
_rl_term_up = _rl_term_dc = _rl_term_DC = _rl_visible_bell = (char *)NULL;
|
|
_rl_term_ku = _rl_term_kd = _rl_term_kl = _rl_term_kr = (char *)NULL;
|
|
_rl_term_mm = _rl_term_mo = (char *)NULL;
|
|
_rl_terminal_can_insert = term_has_meta = _rl_term_autowrap = 0;
|
|
_rl_term_cr = "\r";
|
|
_rl_term_clreol = _rl_term_clrpag = _rl_term_backspace = (char *)NULL;
|
|
_rl_term_goto = _rl_term_pc = _rl_term_ip = (char *)NULL;
|
|
_rl_term_ks = _rl_term_ke =_rl_term_vs = _rl_term_ve = (char *)NULL;
|
|
_rl_term_kh = _rl_term_kH = _rl_term_at7 = _rl_term_kI = (char *)NULL;
|
|
#if defined(HACK_TERMCAP_MOTION)
|
|
_rl_term_forward_char = (char *)NULL;
|
|
#endif
|
|
|
|
_rl_get_screen_size (tty, 0);
|
|
#else /* !__MSDOS__ */
|
|
/* I've separated this out for later work on not calling tgetent at all
|
|
if the calling application has supplied a custom redisplay function,
|
|
(and possibly if the application has supplied a custom input function). */
|
|
if (CUSTOM_REDISPLAY_FUNC())
|
|
{
|
|
tgetent_ret = -1;
|
|
}
|
|
else
|
|
{
|
|
if (term_string_buffer == 0)
|
|
term_string_buffer = (char *)xmalloc(2032);
|
|
|
|
if (term_buffer == 0)
|
|
term_buffer = (char *)xmalloc(4080);
|
|
|
|
buffer = term_string_buffer;
|
|
|
|
tgetent_ret = tgetent (term_buffer, term);
|
|
}
|
|
|
|
if (tgetent_ret <= 0)
|
|
{
|
|
FREE (term_string_buffer);
|
|
FREE (term_buffer);
|
|
buffer = term_buffer = term_string_buffer = (char *)NULL;
|
|
|
|
_rl_term_autowrap = 0; /* used by _rl_get_screen_size */
|
|
|
|
/* Allow calling application to set default height and width, using
|
|
rl_set_screen_size */
|
|
if (_rl_screenwidth <= 0 || _rl_screenheight <= 0)
|
|
{
|
|
#if defined (__EMX__)
|
|
_emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
|
|
_rl_screenwidth--;
|
|
#else /* !__EMX__ */
|
|
_rl_get_screen_size (tty, 0);
|
|
#endif /* !__EMX__ */
|
|
}
|
|
|
|
/* Defaults. */
|
|
if (_rl_screenwidth <= 0 || _rl_screenheight <= 0)
|
|
{
|
|
_rl_screenwidth = 79;
|
|
_rl_screenheight = 24;
|
|
}
|
|
|
|
/* Everything below here is used by the redisplay code (tputs). */
|
|
_rl_screenchars = _rl_screenwidth * _rl_screenheight;
|
|
_rl_term_cr = "\r";
|
|
_rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL;
|
|
_rl_term_up = _rl_term_dc = _rl_term_DC = _rl_visible_bell = (char *)NULL;
|
|
_rl_term_ku = _rl_term_kd = _rl_term_kl = _rl_term_kr = (char *)NULL;
|
|
_rl_term_kh = _rl_term_kH = _rl_term_kI = _rl_term_kD = (char *)NULL;
|
|
_rl_term_ks = _rl_term_ke = _rl_term_at7 = (char *)NULL;
|
|
_rl_term_mm = _rl_term_mo = (char *)NULL;
|
|
_rl_term_ve = _rl_term_vs = (char *)NULL;
|
|
#if defined (HACK_TERMCAP_MOTION)
|
|
term_forward_char = (char *)NULL;
|
|
#endif
|
|
_rl_terminal_can_insert = term_has_meta = 0;
|
|
|
|
/* Reasonable defaults for tgoto(). Readline currently only uses
|
|
tgoto if _rl_term_IC or _rl_term_DC is defined, but just in case we
|
|
change that later... */
|
|
PC = '\0';
|
|
BC = _rl_term_backspace = "\b";
|
|
UP = _rl_term_up;
|
|
|
|
return 0;
|
|
}
|
|
|
|
get_term_capabilities (&buffer);
|
|
|
|
/* Set up the variables that the termcap library expects the application
|
|
to provide. */
|
|
PC = _rl_term_pc ? *_rl_term_pc : 0;
|
|
BC = _rl_term_backspace;
|
|
UP = _rl_term_up;
|
|
|
|
if (!_rl_term_cr)
|
|
_rl_term_cr = "\r";
|
|
|
|
_rl_term_autowrap = tgetflag ("am") && tgetflag ("xn");
|
|
|
|
/* Allow calling application to set default height and width, using
|
|
rl_set_screen_size */
|
|
if (_rl_screenwidth <= 0 || _rl_screenheight <= 0)
|
|
_rl_get_screen_size (tty, 0);
|
|
|
|
/* "An application program can assume that the terminal can do
|
|
character insertion if *any one of* the capabilities `IC',
|
|
`im', `ic' or `ip' is provided." But we can't do anything if
|
|
only `ip' is provided, so... */
|
|
_rl_terminal_can_insert = (_rl_term_IC || _rl_term_im || _rl_term_ic);
|
|
|
|
/* Check to see if this terminal has a meta key and clear the capability
|
|
variables if there is none. */
|
|
term_has_meta = (tgetflag ("km") || tgetflag ("MT"));
|
|
if (!term_has_meta)
|
|
_rl_term_mm = _rl_term_mo = (char *)NULL;
|
|
|
|
#endif /* !__MSDOS__ */
|
|
|
|
/* Attempt to find and bind the arrow keys. Do not override already
|
|
bound keys in an overzealous attempt, however. */
|
|
|
|
bind_termcap_arrow_keys (emacs_standard_keymap);
|
|
|
|
#if defined (VI_MODE)
|
|
bind_termcap_arrow_keys (vi_movement_keymap);
|
|
bind_termcap_arrow_keys (vi_insertion_keymap);
|
|
#endif /* VI_MODE */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Bind the arrow key sequences from the termcap description in MAP. */
|
|
static void
|
|
bind_termcap_arrow_keys (map)
|
|
Keymap map;
|
|
{
|
|
Keymap xkeymap;
|
|
|
|
xkeymap = _rl_keymap;
|
|
_rl_keymap = map;
|
|
|
|
rl_bind_keyseq_if_unbound (_rl_term_ku, rl_get_previous_history);
|
|
rl_bind_keyseq_if_unbound (_rl_term_kd, rl_get_next_history);
|
|
rl_bind_keyseq_if_unbound (_rl_term_kr, rl_forward_char);
|
|
rl_bind_keyseq_if_unbound (_rl_term_kl, rl_backward_char);
|
|
|
|
rl_bind_keyseq_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */
|
|
rl_bind_keyseq_if_unbound (_rl_term_at7, rl_end_of_line); /* End */
|
|
|
|
rl_bind_keyseq_if_unbound (_rl_term_kD, rl_delete);
|
|
|
|
_rl_keymap = xkeymap;
|
|
}
|
|
|
|
char *
|
|
rl_get_termcap (cap)
|
|
const char *cap;
|
|
{
|
|
register int i;
|
|
|
|
if (tcap_initialized == 0)
|
|
return ((char *)NULL);
|
|
for (i = 0; i < NUM_TC_STRINGS; i++)
|
|
{
|
|
if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0)
|
|
return *(tc_strings[i].tc_value);
|
|
}
|
|
return ((char *)NULL);
|
|
}
|
|
|
|
/* Re-initialize the terminal considering that the TERM/TERMCAP variable
|
|
has changed. */
|
|
int
|
|
rl_reset_terminal (terminal_name)
|
|
const char *terminal_name;
|
|
{
|
|
_rl_screenwidth = _rl_screenheight = 0;
|
|
_rl_init_terminal_io (terminal_name);
|
|
return 0;
|
|
}
|
|
|
|
/* A function for the use of tputs () */
|
|
#ifdef _MINIX
|
|
void
|
|
_rl_output_character_function (c)
|
|
int c;
|
|
{
|
|
putc (c, _rl_out_stream);
|
|
}
|
|
#else /* !_MINIX */
|
|
int
|
|
_rl_output_character_function (c)
|
|
int c;
|
|
{
|
|
return putc (c, _rl_out_stream);
|
|
}
|
|
#endif /* !_MINIX */
|
|
|
|
/* Write COUNT characters from STRING to the output stream. */
|
|
void
|
|
_rl_output_some_chars (string, count)
|
|
const char *string;
|
|
int count;
|
|
{
|
|
fwrite (string, 1, count, _rl_out_stream);
|
|
}
|
|
|
|
/* Move the cursor back. */
|
|
int
|
|
_rl_backspace (count)
|
|
int count;
|
|
{
|
|
register int i;
|
|
|
|
#ifndef __MSDOS__
|
|
if (_rl_term_backspace)
|
|
for (i = 0; i < count; i++)
|
|
tputs (_rl_term_backspace, 1, _rl_output_character_function);
|
|
else
|
|
#endif
|
|
for (i = 0; i < count; i++)
|
|
putc ('\b', _rl_out_stream);
|
|
return 0;
|
|
}
|
|
|
|
/* Move to the start of the next line. */
|
|
int
|
|
rl_crlf ()
|
|
{
|
|
#if defined (NEW_TTY_DRIVER)
|
|
if (_rl_term_cr)
|
|
tputs (_rl_term_cr, 1, _rl_output_character_function);
|
|
#endif /* NEW_TTY_DRIVER */
|
|
putc ('\n', _rl_out_stream);
|
|
return 0;
|
|
}
|
|
|
|
/* Ring the terminal bell. */
|
|
int
|
|
rl_ding ()
|
|
{
|
|
if (readline_echoing_p)
|
|
{
|
|
switch (_rl_bell_preference)
|
|
{
|
|
case NO_BELL:
|
|
default:
|
|
break;
|
|
case VISIBLE_BELL:
|
|
#ifdef __MSDOS__
|
|
ScreenVisualBell ();
|
|
break;
|
|
#else
|
|
if (_rl_visible_bell)
|
|
{
|
|
tputs (_rl_visible_bell, 1, _rl_output_character_function);
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
#endif
|
|
case AUDIBLE_BELL:
|
|
fprintf (stderr, "\007");
|
|
fflush (stderr);
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
return (-1);
|
|
}
|
|
|
|
/* **************************************************************** */
|
|
/* */
|
|
/* Controlling the Meta Key and Keypad */
|
|
/* */
|
|
/* **************************************************************** */
|
|
|
|
void
|
|
_rl_enable_meta_key ()
|
|
{
|
|
#if !defined (__DJGPP__)
|
|
if (term_has_meta && _rl_term_mm)
|
|
tputs (_rl_term_mm, 1, _rl_output_character_function);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
_rl_control_keypad (on)
|
|
int on;
|
|
{
|
|
#if !defined (__DJGPP__)
|
|
if (on && _rl_term_ks)
|
|
tputs (_rl_term_ks, 1, _rl_output_character_function);
|
|
else if (!on && _rl_term_ke)
|
|
tputs (_rl_term_ke, 1, _rl_output_character_function);
|
|
#endif
|
|
}
|
|
|
|
/* **************************************************************** */
|
|
/* */
|
|
/* Controlling the Cursor */
|
|
/* */
|
|
/* **************************************************************** */
|
|
|
|
/* Set the cursor appropriately depending on IM, which is one of the
|
|
insert modes (insert or overwrite). Insert mode gets the normal
|
|
cursor. Overwrite mode gets a very visible cursor. Only does
|
|
anything if we have both capabilities. */
|
|
void
|
|
_rl_set_cursor (im, force)
|
|
int im, force;
|
|
{
|
|
#ifndef __MSDOS__
|
|
if (_rl_term_ve && _rl_term_vs)
|
|
{
|
|
if (force || im != rl_insert_mode)
|
|
{
|
|
if (im == RL_IM_OVERWRITE)
|
|
tputs (_rl_term_vs, 1, _rl_output_character_function);
|
|
else
|
|
tputs (_rl_term_ve, 1, _rl_output_character_function);
|
|
}
|
|
}
|
|
#endif
|
|
}
|