diff options
Diffstat (limited to 'MSVC/readline/terminal.c')
| -rw-r--r-- | MSVC/readline/terminal.c | 1614 |
1 files changed, 807 insertions, 807 deletions
diff --git a/MSVC/readline/terminal.c b/MSVC/readline/terminal.c index d4ae524..b080a88 100644 --- a/MSVC/readline/terminal.c +++ b/MSVC/readline/terminal.c @@ -1,807 +1,807 @@ -/* terminal.c -- controlling the terminal with termcap. */
-
-/* Copyright (C) 1996 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
-
-#include "config.h"
-
-#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 _WIN32
-# include <windows.h>
- void _rl_output_some_chars ();
- extern int haveConsole; /* imported from rltty.c */
- extern HANDLE hStdout, hStdin;
- #if defined (WITH_MINI_MOUSE)
- extern COORD rlScreenEnd;
- extern int rlScreenMax;
- #endif /* WITH_MINI_MOUSE */
-#else /* !_WIN32 */
-# if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
-# include <sys/ioctl.h>
-# endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
-
-# include "rltty.h"
-# include "tcap.h"
-#endif /* !_WIN32 */
-
-/* Some standard library routines. */
-#include "readline.h"
-#include "history.h"
-
-#include "rlprivate.h"
-#include "rlshell.h"
-#include "xmalloc.h"
-
-#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
-#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
-
-/* Functions imported from display.c */
-extern void _rl_redisplay_after_sigwinch ();
-
-/* **************************************************************** */
-/* */
-/* Terminal and Termcap */
-/* */
-/* **************************************************************** */
-
-#if !defined _WIN32
-static char *term_buffer = (char *)NULL;
-static char *term_string_buffer = (char *)NULL;
-
-static int tcap_initialized;
-#endif /* !_WIN32 */
-
-#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;
-
-/* 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 */
-
-/* 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. */
-#if !defined _WIN32
-void
-_rl_get_screen_size (tty, ignore_env)
- int tty, ignore_env;
-{
- char *ss;
-#if defined (TIOCGWINSZ)
- struct winsize window_size;
-#endif /* TIOCGWINSZ */
-
-#if defined (TIOCGWINSZ)
- if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
- {
- _rl_screenwidth = (int) window_size.ws_col;
- _rl_screenheight = (int) window_size.ws_row;
- }
-#endif /* TIOCGWINSZ */
-
-#if defined (__EMX__)
- _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
-#endif
-
- /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
- is unset. */
- if (_rl_screenwidth <= 0)
- {
- if (ignore_env == 0 && (ss = sh_get_env_value ("COLUMNS")))
- _rl_screenwidth = atoi (ss);
-
-#if !defined (__DJGPP__)
- 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 !defined (__DJGPP__)
- 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;
-}
-#else /* _WIN32*/
-void
-_rl_get_screen_size (tty, ignore_env)
- int tty, ignore_env __attribute__((unused));
-{
- CONSOLE_SCREEN_BUFFER_INFO csbi;
-
- if ( (haveConsole & FOR_OUTPUT) && GetConsoleScreenBufferInfo(hStdout, &csbi) )
- {
- _rl_screenwidth = csbi.dwSize.X;
- _rl_screenheight = csbi.dwSize.Y;
- }
- else
- {
- _rl_screenwidth = 80;
- _rl_screenheight = 24;
- }
- _rl_screenchars = _rl_screenwidth * _rl_screenheight;
-}
-#endif /* _WIN32 */
-
-void
-_rl_set_screen_size (rows, cols)
- int rows, cols;
-{
- if (rows == 0 || cols == 0)
- return;
-
- _rl_screenheight = rows;
- _rl_screenwidth = cols;
-
- if (_rl_term_autowrap == 0)
- _rl_screenwidth--;
-
- _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_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 ();
- }
-}
-
-#if !defined _WIN32 /* for a Win32 console we set capabilities directly */
-
-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 },
- { "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++)
-# ifdef __LCC__
- *(tc_strings[i].tc_value) = tgetstr ((char *)tc_strings[i].tc_var, bp);
-# else
- *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp);
-# endif
-#endif
- tcap_initialized = 1;
-}
-#endif /* !_WIN32 */
-
-int
-_rl_init_terminal_io (terminal_name)
- const char *terminal_name;
-{
-#if defined _WIN32
- _rl_term_cr = "\r"; /* any value != 0 */
- _rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL; /* !! we emulate insertion */
- _rl_term_up = "y"; /* any value != 0 */
- _rl_term_dc = _rl_term_DC = (char *)NULL; /* !! we emulate deletion */
- _rl_visible_bell = (char *)NULL;
-
- _rl_get_screen_size (0, 1);
-
- /* Let Windows handle meta keys! */
- term_has_meta = 0;
- _rl_term_mm = _rl_term_mo = (char *)NULL;
-
- /* It probably has arrow keys, but I don't know what they are. */
- _rl_term_ku = _rl_term_kd = _rl_term_kr = _rl_term_kl = (char *)NULL;
-
-#if defined (HACK_TERMCAP_MOTION)
- term_forward_char = (char *)NULL;
-#endif /* HACK_TERMCAP_MOTION */
-
- _rl_terminal_can_insert = 0;
- _rl_term_autowrap = 1;
-#else
- 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;
- _rl_screenwidth = _rl_screenheight = 0;
-
- if (term == 0)
- term = "dumb";
-
- /* 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 */
-
-#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 = (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");
-
- _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;
-
- /* 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 */
-#endif /* !_WIN32 */
-
- 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_if_unbound (_rl_term_ku, rl_get_previous_history);
- _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history);
- _rl_bind_if_unbound (_rl_term_kr, rl_forward);
- _rl_bind_if_unbound (_rl_term_kl, rl_backward);
-
- _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */
- _rl_bind_if_unbound (_rl_term_at7, rl_end_of_line); /* End */
-
- _rl_keymap = xkeymap;
-}
-
-#if !defined _WIN32
-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);
-}
-#endif /* !_WIN32 */
-
-/* Re-initialize the terminal considering that the TERM/TERMCAP variable
- has changed. */
-int
-rl_reset_terminal (terminal_name)
- const char *terminal_name;
-{
- _rl_init_terminal_io (terminal_name);
- return 0;
-}
-
-#if !defined _WIN32 /* Mingw's functions follow separately
- to avoid too many #if...s */
-/* 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;
-
- if (_rl_term_backspace)
- for (i = 0; i < count; i++)
- tputs (_rl_term_backspace, 1, _rl_output_character_function);
- else
- 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:
- if (_rl_visible_bell)
- {
- tputs (_rl_visible_bell, 1, _rl_output_character_function);
- break;
- }
- /* FALLTHROUGH */
- case AUDIBLE_BELL:
- fprintf (stderr, "\007");
- fflush (stderr);
- break;
- }
- return (0);
- }
- return (-1);
-}
-
-#else /* _WIN32 */
-
-/* Write COUNT characters from STRING to the output stream. */
-void
-_rl_output_some_chars (string, count)
- const char *string;
- int count;
-{
- CONSOLE_SCREEN_BUFFER_INFO csbi;
- fwrite (string, 1, count, _rl_out_stream);
- if ( (haveConsole & FOR_OUTPUT) && GetConsoleScreenBufferInfo(hStdout, &csbi) )
- {
- int linear_pos = (int)csbi.dwCursorPosition.Y * (int)csbi.dwSize.X
- + (int)csbi.dwCursorPosition.X;
-#if defined (WITH_MINI_MOUSE)
- if (linear_pos > rlScreenMax)
- {
- rlScreenEnd = csbi.dwCursorPosition;
- rlScreenMax = linear_pos;
- }
-#endif /* WITH_MINI_MOUSE */
- }
-}
-
-/* This is used to collect all putc output */
-int
-_rl_output_character_function (c)
- int c;
-{
- char cc = c;
- _rl_output_some_chars (&cc, 1);
- return 1;
-}
-
-/* Move the cursor back. */
-int
-_rl_backspace (count)
- int count;
-{
- CONSOLE_SCREEN_BUFFER_INFO csbi;
-
- if ( (haveConsole & FOR_OUTPUT) && GetConsoleScreenBufferInfo(hStdout, &csbi) )
- {
- while (count > csbi.dwCursorPosition.X)
- {
- --csbi.dwCursorPosition.Y;
- count -= csbi.dwCursorPosition.X + 1;
- csbi.dwCursorPosition.X = csbi.dwSize.X - 1;
- }
- csbi.dwCursorPosition.X -= count;
- SetConsoleCursorPosition(hStdout, csbi.dwCursorPosition);
- }
- return 0;
-}
-
-/* Move to the start of the next line. */
-int
-rl_crlf ()
-{
- _rl_output_some_chars ("\n", 1);
- return 0;
-}
-
-/* Ring the terminal bell. */
-int
-rl_ding ()
-{
- if (readline_echoing_p)
- {
- if (_rl_bell_preference != NO_BELL)
- MessageBeep(MB_OK);
- return (0);
- }
- return (-1);
-}
-#endif /* _WIN32 */
-
-/* **************************************************************** */
-/* */
-/* Controlling the Meta Key and Keypad */
-/* */
-/* **************************************************************** */
-
-void
-_rl_enable_meta_key ()
-{
-#if !defined (__DJGPP__) && !defined _WIN32
- 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__) && !defined _WIN32
- 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;
-{
-#if !defined (__DJGPP__) && !defined _WIN32
- 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
-}
+/* terminal.c -- controlling the terminal with termcap. */ + +/* Copyright (C) 1996 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 + +#include "config.h" + +#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 _WIN32 +# include <windows.h> + void _rl_output_some_chars (); + extern int haveConsole; /* imported from rltty.c */ + extern HANDLE hStdout, hStdin; + #if defined (WITH_MINI_MOUSE) + extern COORD rlScreenEnd; + extern int rlScreenMax; + #endif /* WITH_MINI_MOUSE */ +#else /* !_WIN32 */ +# if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ) +# include <sys/ioctl.h> +# endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */ + +# include "rltty.h" +# include "tcap.h" +#endif /* !_WIN32 */ + +/* Some standard library routines. */ +#include "readline.h" +#include "history.h" + +#include "rlprivate.h" +#include "rlshell.h" +#include "xmalloc.h" + +#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay) +#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc) + +/* Functions imported from display.c */ +extern void _rl_redisplay_after_sigwinch (); + +/* **************************************************************** */ +/* */ +/* Terminal and Termcap */ +/* */ +/* **************************************************************** */ + +#if !defined _WIN32 +static char *term_buffer = (char *)NULL; +static char *term_string_buffer = (char *)NULL; + +static int tcap_initialized; +#endif /* !_WIN32 */ + +#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; + +/* 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 */ + +/* 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. */ +#if !defined _WIN32 +void +_rl_get_screen_size (tty, ignore_env) + int tty, ignore_env; +{ + char *ss; +#if defined (TIOCGWINSZ) + struct winsize window_size; +#endif /* TIOCGWINSZ */ + +#if defined (TIOCGWINSZ) + if (ioctl (tty, TIOCGWINSZ, &window_size) == 0) + { + _rl_screenwidth = (int) window_size.ws_col; + _rl_screenheight = (int) window_size.ws_row; + } +#endif /* TIOCGWINSZ */ + +#if defined (__EMX__) + _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight); +#endif + + /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV + is unset. */ + if (_rl_screenwidth <= 0) + { + if (ignore_env == 0 && (ss = sh_get_env_value ("COLUMNS"))) + _rl_screenwidth = atoi (ss); + +#if !defined (__DJGPP__) + 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 !defined (__DJGPP__) + 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; +} +#else /* _WIN32*/ +void +_rl_get_screen_size (tty, ignore_env) + int tty, ignore_env __attribute__((unused)); +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if ( (haveConsole & FOR_OUTPUT) && GetConsoleScreenBufferInfo(hStdout, &csbi) ) + { + _rl_screenwidth = csbi.dwSize.X; + _rl_screenheight = csbi.dwSize.Y; + } + else + { + _rl_screenwidth = 80; + _rl_screenheight = 24; + } + _rl_screenchars = _rl_screenwidth * _rl_screenheight; +} +#endif /* _WIN32 */ + +void +_rl_set_screen_size (rows, cols) + int rows, cols; +{ + if (rows == 0 || cols == 0) + return; + + _rl_screenheight = rows; + _rl_screenwidth = cols; + + if (_rl_term_autowrap == 0) + _rl_screenwidth--; + + _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_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 (); + } +} + +#if !defined _WIN32 /* for a Win32 console we set capabilities directly */ + +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 }, + { "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++) +# ifdef __LCC__ + *(tc_strings[i].tc_value) = tgetstr ((char *)tc_strings[i].tc_var, bp); +# else + *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp); +# endif +#endif + tcap_initialized = 1; +} +#endif /* !_WIN32 */ + +int +_rl_init_terminal_io (terminal_name) + const char *terminal_name; +{ +#if defined _WIN32 + _rl_term_cr = "\r"; /* any value != 0 */ + _rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL; /* !! we emulate insertion */ + _rl_term_up = "y"; /* any value != 0 */ + _rl_term_dc = _rl_term_DC = (char *)NULL; /* !! we emulate deletion */ + _rl_visible_bell = (char *)NULL; + + _rl_get_screen_size (0, 1); + + /* Let Windows handle meta keys! */ + term_has_meta = 0; + _rl_term_mm = _rl_term_mo = (char *)NULL; + + /* It probably has arrow keys, but I don't know what they are. */ + _rl_term_ku = _rl_term_kd = _rl_term_kr = _rl_term_kl = (char *)NULL; + +#if defined (HACK_TERMCAP_MOTION) + term_forward_char = (char *)NULL; +#endif /* HACK_TERMCAP_MOTION */ + + _rl_terminal_can_insert = 0; + _rl_term_autowrap = 1; +#else + 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; + _rl_screenwidth = _rl_screenheight = 0; + + if (term == 0) + term = "dumb"; + + /* 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 */ + +#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 = (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"); + + _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; + + /* 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 */ +#endif /* !_WIN32 */ + + 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_if_unbound (_rl_term_ku, rl_get_previous_history); + _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history); + _rl_bind_if_unbound (_rl_term_kr, rl_forward); + _rl_bind_if_unbound (_rl_term_kl, rl_backward); + + _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */ + _rl_bind_if_unbound (_rl_term_at7, rl_end_of_line); /* End */ + + _rl_keymap = xkeymap; +} + +#if !defined _WIN32 +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); +} +#endif /* !_WIN32 */ + +/* Re-initialize the terminal considering that the TERM/TERMCAP variable + has changed. */ +int +rl_reset_terminal (terminal_name) + const char *terminal_name; +{ + _rl_init_terminal_io (terminal_name); + return 0; +} + +#if !defined _WIN32 /* Mingw's functions follow separately + to avoid too many #if...s */ +/* 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; + + if (_rl_term_backspace) + for (i = 0; i < count; i++) + tputs (_rl_term_backspace, 1, _rl_output_character_function); + else + 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: + if (_rl_visible_bell) + { + tputs (_rl_visible_bell, 1, _rl_output_character_function); + break; + } + /* FALLTHROUGH */ + case AUDIBLE_BELL: + fprintf (stderr, "\007"); + fflush (stderr); + break; + } + return (0); + } + return (-1); +} + +#else /* _WIN32 */ + +/* Write COUNT characters from STRING to the output stream. */ +void +_rl_output_some_chars (string, count) + const char *string; + int count; +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; + fwrite (string, 1, count, _rl_out_stream); + if ( (haveConsole & FOR_OUTPUT) && GetConsoleScreenBufferInfo(hStdout, &csbi) ) + { + int linear_pos = (int)csbi.dwCursorPosition.Y * (int)csbi.dwSize.X + + (int)csbi.dwCursorPosition.X; +#if defined (WITH_MINI_MOUSE) + if (linear_pos > rlScreenMax) + { + rlScreenEnd = csbi.dwCursorPosition; + rlScreenMax = linear_pos; + } +#endif /* WITH_MINI_MOUSE */ + } +} + +/* This is used to collect all putc output */ +int +_rl_output_character_function (c) + int c; +{ + char cc = c; + _rl_output_some_chars (&cc, 1); + return 1; +} + +/* Move the cursor back. */ +int +_rl_backspace (count) + int count; +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if ( (haveConsole & FOR_OUTPUT) && GetConsoleScreenBufferInfo(hStdout, &csbi) ) + { + while (count > csbi.dwCursorPosition.X) + { + --csbi.dwCursorPosition.Y; + count -= csbi.dwCursorPosition.X + 1; + csbi.dwCursorPosition.X = csbi.dwSize.X - 1; + } + csbi.dwCursorPosition.X -= count; + SetConsoleCursorPosition(hStdout, csbi.dwCursorPosition); + } + return 0; +} + +/* Move to the start of the next line. */ +int +rl_crlf () +{ + _rl_output_some_chars ("\n", 1); + return 0; +} + +/* Ring the terminal bell. */ +int +rl_ding () +{ + if (readline_echoing_p) + { + if (_rl_bell_preference != NO_BELL) + MessageBeep(MB_OK); + return (0); + } + return (-1); +} +#endif /* _WIN32 */ + +/* **************************************************************** */ +/* */ +/* Controlling the Meta Key and Keypad */ +/* */ +/* **************************************************************** */ + +void +_rl_enable_meta_key () +{ +#if !defined (__DJGPP__) && !defined _WIN32 + 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__) && !defined _WIN32 + 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; +{ +#if !defined (__DJGPP__) && !defined _WIN32 + 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 +} |