/* terminal.c -- controlling the terminal with termcap. */
/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
This file is part of the GNU Readline Library (Readline), a library
for reading lines of text with interactive input and history editing.
Readline 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 3 of the License, or
(at your option) any later version.
Readline 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.
You should have received a copy of the GNU General Public License
along with Readline. If not, see <http://www.gnu.org/licenses/>.
*/
#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"
#ifdef __MSDOS__
# include <pc.h>
#endif
#include "rltty.h"
#if defined (HAVE_SYS_IOCTL_H)
# include <sys/ioctl.h> /* include for declaration of ioctl */
#endif
#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>
static void _win_get_screensize PARAMS((int *, int *));
#endif
#if defined (__EMX__)
static void _emx_get_screensize PARAMS((int *, int *));
#endif
/* If the calling application sets this to a non-zero value, readline will
use the $LINES and $COLUMNS environment variables to set its idea of the
window size before interrogating the kernel. */
int rl_prefer_env_winsize = 0;
/* If this is non-zero, readline will set LINES and COLUMNS in the
environment when it handles SIGWINCH. */
int rl_change_environment = 1;
/* **************************************************************** */
/* */
/* Terminal and Termcap */
/* */
/* **************************************************************** */
#ifndef __MSDOS__
static char *term_buffer = (char *)NULL;
static char *term_string_buffer = (char *)NULL;
#endif
static int tcap_initialized;
#if !defined (__linux__) && !defined (NCURSES_VERSION)
# if defined (__EMX__) || defined (NEED_EXTERN_PC)
extern
# endif /* __EMX__ || NEED_EXTERN_PC */
char PC, *BC, *UP;
#endif /* !__linux__ && !NCURSES_VERSION */
/* Some strings to control terminal actions. These are output by tputs (). */
char *_rl_term_clreol;
char *_rl_term_clrpag;
char *_rl_term_clrscroll;
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;
/* How to move forward a char, non-destructively */
char *_rl_term_forward_char;
/* 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 sequences to enter and exit standout mode. */
static char *_rl_term_so;
static char *_rl_term_se;
/* 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 */
/* It's not clear how HPUX is so broken here. */
#ifdef TGETENT_BROKEN
# define TGETENT_SUCCESS 0
#else
# define TGETENT_SUCCESS 1
#endif
#ifdef TGETFLAG_BROKEN
# define TGETFLAG_SUCCESS 0
#else
# define TGETFLAG_SUCCESS 1
#endif
#define TGETFLAG(cap) (tgetflag (cap) == TGETFLAG_SUCCESS)
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 (int *swp, int *shp)
{
int sz[2];
_scrsize (sz);
if (swp)
*swp = sz[0];
if (shp)
*shp = sz[1];
}
#endif
#if defined (__MINGW32__)
static void
_win_get_screensize (int *swp, int *shp)
{
HANDLE hConOut;
CONSOLE_SCREEN_BUFFER_INFO scr;
hConOut = GetStdHandle (STD_OUTPUT_HANDLE);
if (hConOut != INVALID_HANDLE_VALUE)
{
if (GetConsoleScreenBufferInfo (hConOut, &scr))
{
*swp = scr.dwSize.X;
*shp = scr.srWindow.Bottom - scr.srWindow.Top + 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 (int tty, int 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 */
#if defined (__EMX__)
_emx_get_screensize (&wc, &wr);
#elif defined (__MINGW32__)
_win_get_screensize (&wc, &wr);
#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. */
if (rl_change_environment)
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 (int rows, int 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 (int rows, int cols)
{
_rl_set_screen_size (rows, cols);
}
void
rl_get_screen_size (int *rows, int *cols)
{
if (rows)
*rows = _rl_screenheight;
if (cols)
*cols = _rl_screenwidth;
}
void
rl_reset_screen_size (void)
{
_rl_get_screen_size (fileno (rl_instream), 0);
}
void
_rl_sigwinch_resize_terminal (void)
{
_rl_get_screen_size (fileno (rl_instream), 1);
}
void
rl_resize_terminal (void)
{
_rl_get_screen_size (fileno (rl_instream), 1);
if (_rl_echoing_p)
{
if (CUSTOM_REDISPLAY_FUNC ())
rl_forced_update_display ();
else if (RL_ISSTATE(RL_STATE_REDISPLAYING) == 0)
_rl_redisplay_after_sigwinch ();
}
}
struct _tc_string {
const char * const tc_var;
char **tc_value;
};
/* This should be kept sorted, just in case we decide to change the
search algorithm to something smarter. */
static const struct _tc_string tc_strings[] =
{
{ "@7", &_rl_term_at7 },
{ "DC", &_rl_term_DC },
{ "E3", &_rl_term_clrscroll },
{ "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 },
{ "nd", &_rl_term_forward_char },
{ "pc", &_rl_term_pc },
{ "se", &_rl_term_se },
{ "so", &_rl_term_so },
{ "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 (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 (const char *terminal_name)
{
const char *term;
char *buffer;
int tty, tgetent_ret, dumbterm;
term = terminal_name ? terminal_name : sh_get_env_value ("TERM");
_rl_term_clrpag = _rl_term_cr = _rl_term_clreol = _rl_term_clrscroll = (char *)NULL;
tty = rl_instream ? fileno (rl_instream) : 0;
if (term == 0)
term = "dumb";
dumbterm = STREQ (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_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;
_rl_term_so = _rl_term_se = (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 != TGETENT_SUCCESS)
{
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;
_rl_term_forward_char = (char *)NULL;
_rl_term_so = _rl_term_se = (char *)NULL;
_rl_terminal_can_insert = term_has_meta = 0;
/* Assume generic unknown terminal can't handle the enable/disable
escape sequences */
_rl_enable_bracketed_paste = 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 == 0)
_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");
if (term_has_meta == 0)
_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 */
/* There's no way to determine whether or not a given terminal supports
bracketed paste mode, so we assume a terminal named "dumb" does not. */
if (dumbterm)
_rl_enable_bracketed_paste = 0;
return 0;
}
/* Bind the arrow key sequences from the termcap description in MAP. */
static void
bind_termcap_arrow_keys (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_bind_keyseq_if_unbound (_rl_term_kI, rl_overwrite_mode); /* Insert */
_rl_keymap = xkeymap;
}
char *
rl_get_termcap (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 (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 (int c)
{
putc (c, _rl_out_stream);
}
#else /* !_MINIX */
int
_rl_output_character_function (int c)
{
return putc (c, _rl_out_stream);
}
#endif /* !_MINIX */
/* Write COUNT characters from STRING to the output stream. */
void
_rl_output_some_chars (const char *string, int count)
{
fwrite (string, 1, count, _rl_out_stream);
}
/* Move the cursor back. */
int
_rl_backspace (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 (void)
{
#if defined (NEW_TTY_DRIVER) || defined (__MINT__)
if (_rl_term_cr)
tputs (_rl_term_cr, 1, _rl_output_character_function);
#endif /* NEW_TTY_DRIVER || __MINT__ */
putc ('\n', _rl_out_stream);
return 0;
}
void
_rl_cr (void)
{
#if defined (__MSDOS__)
putc ('\r', rl_outstream);
#else
tputs (_rl_term_cr, 1, _rl_output_character_function);
#endif
}
/* Ring the terminal bell. */
int
rl_ding (void)
{
if (_rl_echoing_p)
{
switch (_rl_bell_preference)
{
case NO_BELL:
default:
break;
case VISIBLE_BELL:
if (_rl_visible_bell)
{
#ifdef __DJGPP__
ScreenVisualBell ();
#else
tputs (_rl_visible_bell, 1, _rl_output_character_function);
#endif
break;
}
/* FALLTHROUGH */
case AUDIBLE_BELL:
fprintf (stderr, "\007");
fflush (stderr);
break;
}
return (0);
}
return (-1);
}
/* **************************************************************** */
/* */
/* Entering and leaving terminal standout mode */
/* */
/* **************************************************************** */
void
_rl_standout_on (void)
{
#ifndef __MSDOS__
if (_rl_term_so && _rl_term_se)
tputs (_rl_term_so, 1, _rl_output_character_function);
#endif
}
void
_rl_standout_off (void)
{
#ifndef __MSDOS__
if (_rl_term_so && _rl_term_se)
tputs (_rl_term_se, 1, _rl_output_character_function);
#endif
}
/* **************************************************************** */
/* */
/* Controlling the Meta Key and Keypad */
/* */
/* **************************************************************** */
static int enabled_meta = 0; /* flag indicating we enabled meta mode */
void
_rl_enable_meta_key (void)
{
#if !defined (__DJGPP__)
if (term_has_meta && _rl_term_mm)
{
tputs (_rl_term_mm, 1, _rl_output_character_function);
enabled_meta = 1;
}
#endif
}
void
_rl_disable_meta_key (void)
{
#if !defined (__DJGPP__)
if (term_has_meta && _rl_term_mo && enabled_meta)
{
tputs (_rl_term_mo, 1, _rl_output_character_function);
enabled_meta = 0;
}
#endif
}
void
_rl_control_keypad (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 (int im, int 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
}
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