/* terminal.c -- controlling the terminal with termcap. */
-/* Copyright (C) 1996-2009 Free Software Foundation, Inc.
+/* 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.
/* 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"
+#if defined (HAVE_SYS_IOCTL_H)
+# include <sys/ioctl.h> /* include for declaration of ioctl */
+#endif
#include "tcap.h"
/* Some standard library routines. */
static void _emx_get_screensize PARAMS((int *, int *));
#endif
-#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
-#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
-
-/* 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. */
+/* 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 /* !__MSDOS__ */
+#endif
static int tcap_initialized;
/* 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_dc;
char *_rl_term_DC;
+/* How to move forward a char, non-destructively */
char *_rl_term_forward_char;
/* How to go up a line. */
#if defined (__EMX__)
static void
-_emx_get_screensize (swp, shp)
- int *swp, *shp;
+_emx_get_screensize (int *swp, int *shp)
{
int sz[2];
#if defined (__MINGW32__)
static void
-_win_get_screensize (swp, shp)
- int *swp, *shp;
+_win_get_screensize (int *swp, int *shp)
{
HANDLE hConOut;
CONSOLE_SCREEN_BUFFER_INFO scr;
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;
+_rl_get_screen_size (int tty, int ignore_env)
{
char *ss;
#if defined (TIOCGWINSZ)
/* 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_change_environment)
+ sh_set_lines_and_columns (_rl_screenheight, _rl_screenwidth);
if (_rl_term_autowrap == 0)
_rl_screenwidth--;
}
void
-_rl_set_screen_size (rows, cols)
- int rows, cols;
+_rl_set_screen_size (int rows, int cols)
{
if (_rl_term_autowrap == -1)
_rl_init_terminal_io (rl_terminal_name);
}
void
-rl_set_screen_size (rows, cols)
- int rows, cols;
+rl_set_screen_size (int rows, int cols)
{
_rl_set_screen_size (rows, cols);
}
void
-rl_get_screen_size (rows, cols)
- int *rows, *cols;
+rl_get_screen_size (int *rows, int *cols)
{
if (rows)
*rows = _rl_screenheight;
}
void
-rl_reset_screen_size ()
+rl_reset_screen_size (void)
{
_rl_get_screen_size (fileno (rl_instream), 0);
}
-
+
void
-rl_resize_terminal ()
+_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)
{
{ "@7", &_rl_term_at7 },
{ "DC", &_rl_term_DC },
+ { "E3", &_rl_term_clrscroll },
{ "IC", &_rl_term_IC },
{ "ce", &_rl_term_clreol },
{ "cl", &_rl_term_clrpag },
/* 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;
+get_term_capabilities (char **bp)
{
#if !defined (__DJGPP__) /* XXX - doesn't DJGPP have a termcap library? */
register int i;
}
int
-_rl_init_terminal_io (terminal_name)
- const char *terminal_name;
+_rl_init_terminal_io (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;
+ _rl_term_clrpag = _rl_term_cr = _rl_term_clreol = _rl_term_clrscroll = (char *)NULL;
tty = rl_instream ? fileno (rl_instream) : 0;
if (term == 0)
_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_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;
term_has_meta = tgetflag ("km") != 0;
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
/* Bind the arrow key sequences from the termcap description in MAP. */
static void
-bind_termcap_arrow_keys (map)
- Keymap map;
+bind_termcap_arrow_keys (Keymap map)
{
Keymap xkeymap;
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 (cap)
- const char *cap;
+rl_get_termcap (const char *cap)
{
register int i;
/* Re-initialize the terminal considering that the TERM/TERMCAP variable
has changed. */
int
-rl_reset_terminal (terminal_name)
- const char *terminal_name;
+rl_reset_terminal (const char *terminal_name)
{
_rl_screenwidth = _rl_screenheight = 0;
_rl_init_terminal_io (terminal_name);
/* A function for the use of tputs () */
#ifdef _MINIX
void
-_rl_output_character_function (c)
- int c;
+_rl_output_character_function (int c)
{
putc (c, _rl_out_stream);
}
#else /* !_MINIX */
int
-_rl_output_character_function (c)
- int c;
+_rl_output_character_function (int c)
{
return putc (c, _rl_out_stream);
}
/* Write COUNT characters from STRING to the output stream. */
void
-_rl_output_some_chars (string, count)
- const char *string;
- int count;
+_rl_output_some_chars (const char *string, int count)
{
fwrite (string, 1, count, _rl_out_stream);
}
/* Move the cursor back. */
int
-_rl_backspace (count)
- int count;
+_rl_backspace (int count)
{
register int i;
/* Move to the start of the next line. */
int
-rl_crlf ()
+rl_crlf (void)
{
#if defined (NEW_TTY_DRIVER) || defined (__MINT__)
if (_rl_term_cr)
/* Ring the terminal bell. */
int
-rl_ding ()
+rl_ding (void)
{
if (_rl_echoing_p)
{
default:
break;
case VISIBLE_BELL:
-#ifdef __MSDOS__
- ScreenVisualBell ();
- break;
-#else
if (_rl_visible_bell)
{
+#ifdef __DJGPP__
+ ScreenVisualBell ();
+#else
tputs (_rl_visible_bell, 1, _rl_output_character_function);
+#endif
break;
}
/* FALLTHROUGH */
-#endif
case AUDIBLE_BELL:
fprintf (stderr, "\007");
fflush (stderr);
/* */
/* **************************************************************** */
+static int enabled_meta = 0; /* flag indicating we enabled meta mode */
+
void
-_rl_enable_meta_key ()
+_rl_enable_meta_key (void)
{
#if !defined (__DJGPP__)
if (term_has_meta && _rl_term_mm)
- tputs (_rl_term_mm, 1, _rl_output_character_function);
+ {
+ 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 (on)
- int on;
+_rl_control_keypad (int on)
{
#if !defined (__DJGPP__)
if (on && _rl_term_ks)
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;
+_rl_set_cursor (int im, int force)
{
#ifndef __MSDOS__
if (_rl_term_ve && _rl_term_vs)
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