1/* $FreeBSD: head/contrib/libreadline/terminal.c 58314 2000-03-19 22:00:57Z ache $ */
| 1/* $FreeBSD: head/contrib/libreadline/terminal.c 75409 2001-04-11 03:15:56Z ache $ */
|
2/* terminal.c -- controlling the terminal with termcap. */
3
4/* Copyright (C) 1996 Free Software Foundation, Inc.
5
6 This file is part of the GNU Readline Library, a library for
7 reading lines of text with interactive input and history editing.
8
9 The GNU Readline Library is free software; you can redistribute it
10 and/or modify it under the terms of the GNU General Public License
11 as published by the Free Software Foundation; either version 2, or
12 (at your option) any later version.
13
14 The GNU Readline Library is distributed in the hope that it will be
15 useful, but WITHOUT ANY WARRANTY; without even the implied warranty
16 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 The GNU General Public License is often shipped with GNU software, and
20 is generally kept in a file called COPYING or LICENSE. If you do not
21 have a copy of the license, write to the Free Software Foundation,
22 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
23#define READLINE_LIBRARY
24
25#if defined (HAVE_CONFIG_H)
26# include <config.h>
27#endif
28
29#include <sys/types.h>
30#include "posixstat.h"
31#include <fcntl.h>
32#if defined (HAVE_SYS_FILE_H)
33# include <sys/file.h>
34#endif /* HAVE_SYS_FILE_H */
35
36#if defined (HAVE_UNISTD_H)
37# include <unistd.h>
38#endif /* HAVE_UNISTD_H */
39
40#if defined (HAVE_STDLIB_H)
41# include <stdlib.h>
42#else
43# include "ansi_stdlib.h"
44#endif /* HAVE_STDLIB_H */
45
46#if defined (HAVE_LOCALE_H)
47# include <locale.h>
48#endif
49
50#include <stdio.h>
51
52/* System-specific feature definitions and include files. */
53#include "rldefs.h"
54
55#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
56# include <sys/ioctl.h>
57#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
58
59#include "rltty.h"
60#include "tcap.h"
61
62/* Some standard library routines. */
63#include "readline.h"
64#include "history.h"
65
66#include "rlprivate.h"
67#include "rlshell.h"
68
69/* **************************************************************** */
70/* */
71/* Terminal and Termcap */
72/* */
73/* **************************************************************** */
74
75static char *term_buffer = (char *)NULL;
76static char *term_string_buffer = (char *)NULL;
77
78static int tcap_initialized;
79
| 2/* terminal.c -- controlling the terminal with termcap. */
3
4/* Copyright (C) 1996 Free Software Foundation, Inc.
5
6 This file is part of the GNU Readline Library, a library for
7 reading lines of text with interactive input and history editing.
8
9 The GNU Readline Library is free software; you can redistribute it
10 and/or modify it under the terms of the GNU General Public License
11 as published by the Free Software Foundation; either version 2, or
12 (at your option) any later version.
13
14 The GNU Readline Library is distributed in the hope that it will be
15 useful, but WITHOUT ANY WARRANTY; without even the implied warranty
16 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 The GNU General Public License is often shipped with GNU software, and
20 is generally kept in a file called COPYING or LICENSE. If you do not
21 have a copy of the license, write to the Free Software Foundation,
22 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
23#define READLINE_LIBRARY
24
25#if defined (HAVE_CONFIG_H)
26# include <config.h>
27#endif
28
29#include <sys/types.h>
30#include "posixstat.h"
31#include <fcntl.h>
32#if defined (HAVE_SYS_FILE_H)
33# include <sys/file.h>
34#endif /* HAVE_SYS_FILE_H */
35
36#if defined (HAVE_UNISTD_H)
37# include <unistd.h>
38#endif /* HAVE_UNISTD_H */
39
40#if defined (HAVE_STDLIB_H)
41# include <stdlib.h>
42#else
43# include "ansi_stdlib.h"
44#endif /* HAVE_STDLIB_H */
45
46#if defined (HAVE_LOCALE_H)
47# include <locale.h>
48#endif
49
50#include <stdio.h>
51
52/* System-specific feature definitions and include files. */
53#include "rldefs.h"
54
55#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
56# include <sys/ioctl.h>
57#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
58
59#include "rltty.h"
60#include "tcap.h"
61
62/* Some standard library routines. */
63#include "readline.h"
64#include "history.h"
65
66#include "rlprivate.h"
67#include "rlshell.h"
68
69/* **************************************************************** */
70/* */
71/* Terminal and Termcap */
72/* */
73/* **************************************************************** */
74
75static char *term_buffer = (char *)NULL;
76static char *term_string_buffer = (char *)NULL;
77
78static int tcap_initialized;
79
|
80/* Non-zero means this terminal can't really do anything. */
81static int dumb_term;
82
| |
83#if !defined (__linux__)
84# if defined (__EMX__) || defined (NEED_EXTERN_PC)
85extern
86# endif /* __EMX__ || NEED_EXTERN_PC */
87char PC, *BC, *UP;
88#endif /* __linux__ */
89
90/* Some strings to control terminal actions. These are output by tputs (). */
| 80#if !defined (__linux__)
81# if defined (__EMX__) || defined (NEED_EXTERN_PC)
82extern
83# endif /* __EMX__ || NEED_EXTERN_PC */
84char PC, *BC, *UP;
85#endif /* __linux__ */
86
87/* Some strings to control terminal actions. These are output by tputs (). */
|
91char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace;
92char *term_pc;
| 88char *_rl_term_clreol;
89char *_rl_term_clrpag;
90char *_rl_term_cr;
91char *_rl_term_backspace;
92char *_rl_term_goto;
93char *_rl_term_pc;
|
93
94/* Non-zero if we determine that the terminal can do character insertion. */
| 94
95/* Non-zero if we determine that the terminal can do character insertion. */
|
95int terminal_can_insert = 0;
| 96int _rl_terminal_can_insert = 0;
|
96
97/* How to insert characters. */
| 97
98/* How to insert characters. */
|
98char *term_im, *term_ei, *term_ic, *term_ip, *term_IC;
| 99char *_rl_term_im;
100char *_rl_term_ei;
101char *_rl_term_ic;
102char *_rl_term_ip;
103char *_rl_term_IC;
|
99
100/* How to delete characters. */
| 104
105/* How to delete characters. */
|
101char *term_dc, *term_DC;
| 106char *_rl_term_dc;
107char *_rl_term_DC;
|
102
103#if defined (HACK_TERMCAP_MOTION)
| 108
109#if defined (HACK_TERMCAP_MOTION)
|
104char *term_forward_char;
| 110char *_rl_term_forward_char;
|
105#endif /* HACK_TERMCAP_MOTION */
106
107/* How to go up a line. */
| 111#endif /* HACK_TERMCAP_MOTION */
112
113/* How to go up a line. */
|
108char *term_up;
| 114char *_rl_term_up;
|
109
| 115
|
110/* A visible bell, if the terminal can be made to flash the screen. */
111static char *visible_bell;
| 116/* A visible bell; char if the terminal can be made to flash the screen. */
117static char *_rl_visible_bell;
|
112
113/* Non-zero means the terminal can auto-wrap lines. */
114int _rl_term_autowrap;
115
116/* Non-zero means that this terminal has a meta key. */
117static int term_has_meta;
118
119/* The sequences to write to turn on and off the meta key, if this
| 118
119/* Non-zero means the terminal can auto-wrap lines. */
120int _rl_term_autowrap;
121
122/* Non-zero means that this terminal has a meta key. */
123static int term_has_meta;
124
125/* The sequences to write to turn on and off the meta key, if this
|
120 terminal has one. */
121static char *term_mm, *term_mo;
| 126 terminal has one. */
127static char *_rl_term_mm;
128static char *_rl_term_mo;
|
122
123/* The key sequences output by the arrow keys, if this terminal has any. */
| 129
130/* The key sequences output by the arrow keys, if this terminal has any. */
|
124static char *term_ku, *term_kd, *term_kr, *term_kl;
| 131static char *_rl_term_ku;
132static char *_rl_term_kd;
133static char *_rl_term_kr;
134static char *_rl_term_kl;
|
125
126/* How to initialize and reset the arrow keys, if this terminal has any. */
| 135
136/* How to initialize and reset the arrow keys, if this terminal has any. */
|
127static char *term_ks, *term_ke;
| 137static char *_rl_term_ks;
138static char *_rl_term_ke;
|
128
129/* The key sequences sent by the Home and End keys, if any. */
| 139
140/* The key sequences sent by the Home and End keys, if any. */
|
130static char *term_kh, *term_kH;
| 141static char *_rl_term_kh;
142static char *_rl_term_kH;
|
131
132/* Variables that hold the screen dimensions, used by the display code. */
| 143
144/* Variables that hold the screen dimensions, used by the display code. */
|
133int screenwidth, screenheight, screenchars;
| 145int _rl_screenwidth, _rl_screenheight, _rl_screenchars;
|
134
135/* Non-zero means the user wants to enable the keypad. */
136int _rl_enable_keypad;
137
138/* Non-zero means the user wants to enable a meta key. */
139int _rl_enable_meta = 1;
140
141#if defined (__EMX__)
142static void
143_emx_get_screensize (swp, shp)
144 int *swp, *shp;
145{
146 int sz[2];
147
148 _scrsize (sz);
149
150 if (swp)
151 *swp = sz[0];
152 if (shp)
153 *shp = sz[1];
154}
155#endif
156
157/* Get readline's idea of the screen size. TTY is a file descriptor open
158 to the terminal. If IGNORE_ENV is true, we do not pay attention to the
159 values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being
160 non-null serve to check whether or not we have initialized termcap. */
161void
162_rl_get_screen_size (tty, ignore_env)
163 int tty, ignore_env;
164{
165 char *ss;
166#if defined (TIOCGWINSZ)
167 struct winsize window_size;
168#endif /* TIOCGWINSZ */
169
170#if defined (TIOCGWINSZ)
171 if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
172 {
| 146
147/* Non-zero means the user wants to enable the keypad. */
148int _rl_enable_keypad;
149
150/* Non-zero means the user wants to enable a meta key. */
151int _rl_enable_meta = 1;
152
153#if defined (__EMX__)
154static void
155_emx_get_screensize (swp, shp)
156 int *swp, *shp;
157{
158 int sz[2];
159
160 _scrsize (sz);
161
162 if (swp)
163 *swp = sz[0];
164 if (shp)
165 *shp = sz[1];
166}
167#endif
168
169/* Get readline's idea of the screen size. TTY is a file descriptor open
170 to the terminal. If IGNORE_ENV is true, we do not pay attention to the
171 values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being
172 non-null serve to check whether or not we have initialized termcap. */
173void
174_rl_get_screen_size (tty, ignore_env)
175 int tty, ignore_env;
176{
177 char *ss;
178#if defined (TIOCGWINSZ)
179 struct winsize window_size;
180#endif /* TIOCGWINSZ */
181
182#if defined (TIOCGWINSZ)
183 if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
184 {
|
173 screenwidth = (int) window_size.ws_col;
174 screenheight = (int) window_size.ws_row;
| 185 _rl_screenwidth = (int) window_size.ws_col;
186 _rl_screenheight = (int) window_size.ws_row;
|
175 }
176#endif /* TIOCGWINSZ */
177
178#if defined (__EMX__)
| 187 }
188#endif /* TIOCGWINSZ */
189
190#if defined (__EMX__)
|
179 _emx_get_screensize (&screenwidth, &screenheight);
| 191 _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
|
180#endif
181
182 /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
183 is unset. */
| 192#endif
193
194 /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
195 is unset. */
|
184 if (screenwidth <= 0)
| 196 if (_rl_screenwidth <= 0)
|
185 {
| 197 {
|
186 if (ignore_env == 0 && (ss = get_env_value ("COLUMNS")))
187 screenwidth = atoi (ss);
| 198 if (ignore_env == 0 && (ss = sh_get_env_value ("COLUMNS")))
199 _rl_screenwidth = atoi (ss);
|
188
189#if !defined (__DJGPP__)
| 200
201#if !defined (__DJGPP__)
|
190 if (screenwidth <= 0 && term_string_buffer)
191 screenwidth = tgetnum ("co");
| 202 if (_rl_screenwidth <= 0 && term_string_buffer)
203 _rl_screenwidth = tgetnum ("co");
|
192#endif
193 }
194
195 /* Environment variable LINES overrides setting of "li" if IGNORE_ENV
196 is unset. */
| 204#endif
205 }
206
207 /* Environment variable LINES overrides setting of "li" if IGNORE_ENV
208 is unset. */
|
197 if (screenheight <= 0)
| 209 if (_rl_screenheight <= 0)
|
198 {
| 210 {
|
199 if (ignore_env == 0 && (ss = get_env_value ("LINES")))
200 screenheight = atoi (ss);
| 211 if (ignore_env == 0 && (ss = sh_get_env_value ("LINES")))
212 _rl_screenheight = atoi (ss);
|
201
202#if !defined (__DJGPP__)
| 213
214#if !defined (__DJGPP__)
|
203 if (screenheight <= 0 && term_string_buffer)
204 screenheight = tgetnum ("li");
| 215 if (_rl_screenheight <= 0 && term_string_buffer)
216 _rl_screenheight = tgetnum ("li");
|
205#endif
206 }
207
208 /* If all else fails, default to 80x24 terminal. */
| 217#endif
218 }
219
220 /* If all else fails, default to 80x24 terminal. */
|
209 if (screenwidth <= 1)
210 screenwidth = 80;
| 221 if (_rl_screenwidth <= 1)
222 _rl_screenwidth = 80;
|
211
| 223
|
212 if (screenheight <= 0)
213 screenheight = 24;
| 224 if (_rl_screenheight <= 0)
225 _rl_screenheight = 24;
|
214
215 /* If we're being compiled as part of bash, set the environment
216 variables $LINES and $COLUMNS to new values. Otherwise, just
217 do a pair of putenv () or setenv () calls. */
| 226
227 /* If we're being compiled as part of bash, set the environment
228 variables $LINES and $COLUMNS to new values. Otherwise, just
229 do a pair of putenv () or setenv () calls. */
|
218 set_lines_and_columns (screenheight, screenwidth);
| 230 sh_set_lines_and_columns (_rl_screenheight, _rl_screenwidth);
|
219
220 if (_rl_term_autowrap == 0)
| 231
232 if (_rl_term_autowrap == 0)
|
221 screenwidth--;
| 233 _rl_screenwidth--;
|
222
| 234
|
223 screenchars = screenwidth * screenheight;
| 235 _rl_screenchars = _rl_screenwidth * _rl_screenheight;
|
224}
225
226void
227_rl_set_screen_size (rows, cols)
228 int rows, cols;
229{
| 236}
237
238void
239_rl_set_screen_size (rows, cols)
240 int rows, cols;
241{
|
230 screenheight = rows;
231 screenwidth = cols;
| 242 if (rows == 0 || cols == 0)
243 return;
|
232
| 244
|
| 245 _rl_screenheight = rows;
246 _rl_screenwidth = cols;
247
|
233 if (_rl_term_autowrap == 0)
| 248 if (_rl_term_autowrap == 0)
|
234 screenwidth--;
| 249 _rl_screenwidth--;
|
235
| 250
|
236 screenchars = screenwidth * screenheight;
| 251 _rl_screenchars = _rl_screenwidth * _rl_screenheight;
|
237}
238
239void
| 252}
253
254void
|
| 255rl_set_screen_size (rows, cols)
256 int rows, cols;
257{
258 _rl_set_screen_size (rows, cols);
259}
260
261void
262rl_get_screen_size (rows, cols)
263 int *rows, *cols;
264{
265 if (rows)
266 *rows = _rl_screenheight;
267 if (cols)
268 *cols = _rl_screenwidth;
269}
270
271void
|
240rl_resize_terminal ()
241{
242 if (readline_echoing_p)
243 {
244 _rl_get_screen_size (fileno (rl_instream), 1);
245 _rl_redisplay_after_sigwinch ();
246 }
247}
248
249struct _tc_string {
| 272rl_resize_terminal ()
273{
274 if (readline_echoing_p)
275 {
276 _rl_get_screen_size (fileno (rl_instream), 1);
277 _rl_redisplay_after_sigwinch ();
278 }
279}
280
281struct _tc_string {
|
250 char *tc_var;
| 282 const char *tc_var;
|
251 char **tc_value;
252};
253
254/* This should be kept sorted, just in case we decide to change the
255 search algorithm to something smarter. */
256static struct _tc_string tc_strings[] =
257{
| 283 char **tc_value;
284};
285
286/* This should be kept sorted, just in case we decide to change the
287 search algorithm to something smarter. */
288static struct _tc_string tc_strings[] =
289{
|
258 { "DC", &term_DC },
259 { "IC", &term_IC },
260 { "ce", &term_clreol },
261 { "cl", &term_clrpag },
262 { "cr", &term_cr },
263 { "dc", &term_dc },
264 { "ei", &term_ei },
265 { "ic", &term_ic },
266 { "im", &term_im },
267 { "kd", &term_kd },
268 { "kh", &term_kh }, /* home */
269 { "@7", &term_kH }, /* end */
270 { "kl", &term_kl },
271 { "kr", &term_kr },
272 { "ku", &term_ku },
273 { "ks", &term_ks },
274 { "ke", &term_ke },
275 { "le", &term_backspace },
276 { "mm", &term_mm },
277 { "mo", &term_mo },
| 290 { "DC", &_rl_term_DC },
291 { "IC", &_rl_term_IC },
292 { "ce", &_rl_term_clreol },
293 { "cl", &_rl_term_clrpag },
294 { "cr", &_rl_term_cr },
295 { "dc", &_rl_term_dc },
296 { "ei", &_rl_term_ei },
297 { "ic", &_rl_term_ic },
298 { "im", &_rl_term_im },
299 { "kd", &_rl_term_kd },
300 { "kh", &_rl_term_kh }, /* home */
301 { "@7", &_rl_term_kH }, /* end */
302 { "kl", &_rl_term_kl },
303 { "kr", &_rl_term_kr },
304 { "ku", &_rl_term_ku },
305 { "ks", &_rl_term_ks },
306 { "ke", &_rl_term_ke },
307 { "le", &_rl_term_backspace },
308 { "mm", &_rl_term_mm },
309 { "mo", &_rl_term_mo },
|
278#if defined (HACK_TERMCAP_MOTION)
| 310#if defined (HACK_TERMCAP_MOTION)
|
279 { "nd", &term_forward_char },
| 311 { "nd", &_rl_term_forward_char },
|
280#endif
| 312#endif
|
281 { "pc", &term_pc },
282 { "up", &term_up },
283 { "vb", &visible_bell },
| 313 { "pc", &_rl_term_pc },
314 { "up", &_rl_term_up },
315 { "vb", &_rl_visible_bell },
|
284};
285
286#define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string))
287
288/* Read the desired terminal capability strings into BP. The capabilities
289 are described in the TC_STRINGS table. */
290static void
291get_term_capabilities (bp)
292 char **bp;
293{
294#if !defined (__DJGPP__) /* XXX - doesn't DJGPP have a termcap library? */
295 register int i;
296
297 for (i = 0; i < NUM_TC_STRINGS; i++)
298 *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp);
299#endif
300 tcap_initialized = 1;
301}
302
303#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
304#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
305
306int
307_rl_init_terminal_io (terminal_name)
| 316};
317
318#define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string))
319
320/* Read the desired terminal capability strings into BP. The capabilities
321 are described in the TC_STRINGS table. */
322static void
323get_term_capabilities (bp)
324 char **bp;
325{
326#if !defined (__DJGPP__) /* XXX - doesn't DJGPP have a termcap library? */
327 register int i;
328
329 for (i = 0; i < NUM_TC_STRINGS; i++)
330 *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp);
331#endif
332 tcap_initialized = 1;
333}
334
335#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
336#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
337
338int
339_rl_init_terminal_io (terminal_name)
|
308 char *terminal_name;
| 340 const char *terminal_name;
|
309{
| 341{
|
310 char *term, *buffer;
| 342 const char *term;
343 char *buffer;
|
311 int tty, tgetent_ret;
312 Keymap xkeymap;
313
| 344 int tty, tgetent_ret;
345 Keymap xkeymap;
346
|
314 term = terminal_name ? terminal_name : get_env_value ("TERM");
315 term_clrpag = term_cr = term_clreol = (char *)NULL;
| 347 term = terminal_name ? terminal_name : sh_get_env_value ("TERM");
348 _rl_term_clrpag = _rl_term_cr = _rl_term_clreol = (char *)NULL;
|
316 tty = rl_instream ? fileno (rl_instream) : 0;
| 349 tty = rl_instream ? fileno (rl_instream) : 0;
|
317 screenwidth = screenheight = 0;
| 350 _rl_screenwidth = _rl_screenheight = 0;
|
318
319 if (term == 0)
320 term = "dumb";
321
322 /* I've separated this out for later work on not calling tgetent at all
323 if the calling application has supplied a custom redisplay function,
324 (and possibly if the application has supplied a custom input function). */
325 if (CUSTOM_REDISPLAY_FUNC())
326 {
327 tgetent_ret = -1;
328 }
329 else
330 {
331 if (term_string_buffer == 0)
332 term_string_buffer = xmalloc(2032);
333
334 if (term_buffer == 0)
335 term_buffer = xmalloc(4080);
336
337 buffer = term_string_buffer;
338
339 tgetent_ret = tgetent (term_buffer, term);
340 }
341
342 if (tgetent_ret <= 0)
343 {
344 FREE (term_string_buffer);
345 FREE (term_buffer);
346 buffer = term_buffer = term_string_buffer = (char *)NULL;
347
| 351
352 if (term == 0)
353 term = "dumb";
354
355 /* I've separated this out for later work on not calling tgetent at all
356 if the calling application has supplied a custom redisplay function,
357 (and possibly if the application has supplied a custom input function). */
358 if (CUSTOM_REDISPLAY_FUNC())
359 {
360 tgetent_ret = -1;
361 }
362 else
363 {
364 if (term_string_buffer == 0)
365 term_string_buffer = xmalloc(2032);
366
367 if (term_buffer == 0)
368 term_buffer = xmalloc(4080);
369
370 buffer = term_string_buffer;
371
372 tgetent_ret = tgetent (term_buffer, term);
373 }
374
375 if (tgetent_ret <= 0)
376 {
377 FREE (term_string_buffer);
378 FREE (term_buffer);
379 buffer = term_buffer = term_string_buffer = (char *)NULL;
380
|
348 dumb_term = 1;
| |
349 _rl_term_autowrap = 0; /* used by _rl_get_screen_size */
350
351#if defined (__EMX__)
| 381 _rl_term_autowrap = 0; /* used by _rl_get_screen_size */
382
383#if defined (__EMX__)
|
352 _emx_get_screensize (&screenwidth, &screenheight);
353 screenwidth--;
| 384 _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
385 _rl_screenwidth--;
|
354#else /* !__EMX__ */
355 _rl_get_screen_size (tty, 0);
356#endif /* !__EMX__ */
357
358 /* Defaults. */
| 386#else /* !__EMX__ */
387 _rl_get_screen_size (tty, 0);
388#endif /* !__EMX__ */
389
390 /* Defaults. */
|
359 if (screenwidth <= 0 || screenheight <= 0)
| 391 if (_rl_screenwidth <= 0 || _rl_screenheight <= 0)
|
360 {
| 392 {
|
361 screenwidth = 79;
362 screenheight = 24;
| 393 _rl_screenwidth = 79;
394 _rl_screenheight = 24;
|
363 }
364
365 /* Everything below here is used by the redisplay code (tputs). */
| 395 }
396
397 /* Everything below here is used by the redisplay code (tputs). */
|
366 screenchars = screenwidth * screenheight;
367 term_cr = "\r";
368 term_im = term_ei = term_ic = term_IC = (char *)NULL;
369 term_up = term_dc = term_DC = visible_bell = (char *)NULL;
370 term_ku = term_kd = term_kl = term_kr = (char *)NULL;
371 term_mm = term_mo = (char *)NULL;
| 398 _rl_screenchars = _rl_screenwidth * _rl_screenheight;
399 _rl_term_cr = "\r";
400 _rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL;
401 _rl_term_up = _rl_term_dc = _rl_term_DC = _rl_visible_bell = (char *)NULL;
402 _rl_term_ku = _rl_term_kd = _rl_term_kl = _rl_term_kr = (char *)NULL;
403 _rl_term_mm = _rl_term_mo = (char *)NULL;
|
372#if defined (HACK_TERMCAP_MOTION)
373 term_forward_char = (char *)NULL;
374#endif
| 404#if defined (HACK_TERMCAP_MOTION)
405 term_forward_char = (char *)NULL;
406#endif
|
375 terminal_can_insert = term_has_meta = 0;
| 407 _rl_terminal_can_insert = term_has_meta = 0;
|
376
377 /* Reasonable defaults for tgoto(). Readline currently only uses
| 408
409 /* Reasonable defaults for tgoto(). Readline currently only uses
|
378 tgoto if term_IC or term_DC is defined, but just in case we
| 410 tgoto if _rl_term_IC or _rl_term_DC is defined, but just in case we
|
379 change that later... */
380 PC = '\0';
| 411 change that later... */
412 PC = '\0';
|
381 BC = term_backspace = "\b";
382 UP = term_up;
| 413 BC = _rl_term_backspace = "\b";
414 UP = _rl_term_up;
|
383
384 return 0;
385 }
386
387 get_term_capabilities (&buffer);
388
389 /* Set up the variables that the termcap library expects the application
390 to provide. */
| 415
416 return 0;
417 }
418
419 get_term_capabilities (&buffer);
420
421 /* Set up the variables that the termcap library expects the application
422 to provide. */
|
391 PC = term_pc ? *term_pc : 0;
392 BC = term_backspace;
393 UP = term_up;
| 423 PC = _rl_term_pc ? *_rl_term_pc : 0;
424 BC = _rl_term_backspace;
425 UP = _rl_term_up;
|
394
| 426
|
395 if (!term_cr)
396 term_cr = "\r";
| 427 if (!_rl_term_cr)
428 _rl_term_cr = "\r";
|
397
398 _rl_term_autowrap = tgetflag ("am") && tgetflag ("xn");
399
400 _rl_get_screen_size (tty, 0);
401
402 /* "An application program can assume that the terminal can do
403 character insertion if *any one of* the capabilities `IC',
404 `im', `ic' or `ip' is provided." But we can't do anything if
405 only `ip' is provided, so... */
| 429
430 _rl_term_autowrap = tgetflag ("am") && tgetflag ("xn");
431
432 _rl_get_screen_size (tty, 0);
433
434 /* "An application program can assume that the terminal can do
435 character insertion if *any one of* the capabilities `IC',
436 `im', `ic' or `ip' is provided." But we can't do anything if
437 only `ip' is provided, so... */
|
406 terminal_can_insert = (term_IC || term_im || term_ic);
| 438 _rl_terminal_can_insert = (_rl_term_IC || _rl_term_im || _rl_term_ic);
|
407
408 /* Check to see if this terminal has a meta key and clear the capability
409 variables if there is none. */
410 term_has_meta = (tgetflag ("km") || tgetflag ("MT"));
411 if (!term_has_meta)
| 439
440 /* Check to see if this terminal has a meta key and clear the capability
441 variables if there is none. */
442 term_has_meta = (tgetflag ("km") || tgetflag ("MT"));
443 if (!term_has_meta)
|
412 term_mm = term_mo = (char *)NULL;
| 444 _rl_term_mm = _rl_term_mo = (char *)NULL;
|
413
414 /* Attempt to find and bind the arrow keys. Do not override already
415 bound keys in an overzealous attempt, however. */
416 xkeymap = _rl_keymap;
417
418 _rl_keymap = emacs_standard_keymap;
| 445
446 /* Attempt to find and bind the arrow keys. Do not override already
447 bound keys in an overzealous attempt, however. */
448 xkeymap = _rl_keymap;
449
450 _rl_keymap = emacs_standard_keymap;
|
419 _rl_bind_if_unbound (term_ku, rl_get_previous_history);
420 _rl_bind_if_unbound (term_kd, rl_get_next_history);
421 _rl_bind_if_unbound (term_kr, rl_forward);
422 _rl_bind_if_unbound (term_kl, rl_backward);
| 451 _rl_bind_if_unbound (_rl_term_ku, rl_get_previous_history);
452 _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history);
453 _rl_bind_if_unbound (_rl_term_kr, rl_forward);
454 _rl_bind_if_unbound (_rl_term_kl, rl_backward);
|
423
| 455
|
424 _rl_bind_if_unbound (term_kh, rl_beg_of_line); /* Home */
425 _rl_bind_if_unbound (term_kH, rl_end_of_line); /* End */
| 456 _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */
457 _rl_bind_if_unbound (_rl_term_kH, rl_end_of_line); /* End */
|
426
427#if defined (VI_MODE)
428 _rl_keymap = vi_movement_keymap;
| 458
459#if defined (VI_MODE)
460 _rl_keymap = vi_movement_keymap;
|
429 _rl_bind_if_unbound (term_ku, rl_get_previous_history);
430 _rl_bind_if_unbound (term_kd, rl_get_next_history);
431 _rl_bind_if_unbound (term_kr, rl_forward);
432 _rl_bind_if_unbound (term_kl, rl_backward);
| 461 _rl_bind_if_unbound (_rl_term_ku, rl_get_previous_history);
462 _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history);
463 _rl_bind_if_unbound (_rl_term_kr, rl_forward);
464 _rl_bind_if_unbound (_rl_term_kl, rl_backward);
|
433
| 465
|
434 _rl_bind_if_unbound (term_kh, rl_beg_of_line); /* Home */
435 _rl_bind_if_unbound (term_kH, rl_end_of_line); /* End */
| 466 _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */
467 _rl_bind_if_unbound (_rl_term_kH, rl_end_of_line); /* End */
|
436#endif /* VI_MODE */
437
438 _rl_keymap = xkeymap;
439
440 return 0;
441}
442
443char *
444rl_get_termcap (cap)
| 468#endif /* VI_MODE */
469
470 _rl_keymap = xkeymap;
471
472 return 0;
473}
474
475char *
476rl_get_termcap (cap)
|
445 char *cap;
| 477 const char *cap;
|
446{
447 register int i;
448
449 if (tcap_initialized == 0)
450 return ((char *)NULL);
451 for (i = 0; i < NUM_TC_STRINGS; i++)
452 {
453 if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0)
454 return *(tc_strings[i].tc_value);
455 }
456 return ((char *)NULL);
457}
458
459/* Re-initialize the terminal considering that the TERM/TERMCAP variable
460 has changed. */
461int
462rl_reset_terminal (terminal_name)
| 478{
479 register int i;
480
481 if (tcap_initialized == 0)
482 return ((char *)NULL);
483 for (i = 0; i < NUM_TC_STRINGS; i++)
484 {
485 if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0)
486 return *(tc_strings[i].tc_value);
487 }
488 return ((char *)NULL);
489}
490
491/* Re-initialize the terminal considering that the TERM/TERMCAP variable
492 has changed. */
493int
494rl_reset_terminal (terminal_name)
|
463 char *terminal_name;
| 495 const char *terminal_name;
|
464{
465 _rl_init_terminal_io (terminal_name);
466 return 0;
467}
468
469/* A function for the use of tputs () */
470#ifdef _MINIX
471void
472_rl_output_character_function (c)
473 int c;
474{
475 putc (c, _rl_out_stream);
476}
477#else /* !_MINIX */
478int
479_rl_output_character_function (c)
480 int c;
481{
482 return putc (c, _rl_out_stream);
483}
484#endif /* !_MINIX */
485
486/* Write COUNT characters from STRING to the output stream. */
487void
488_rl_output_some_chars (string, count)
| 496{
497 _rl_init_terminal_io (terminal_name);
498 return 0;
499}
500
501/* A function for the use of tputs () */
502#ifdef _MINIX
503void
504_rl_output_character_function (c)
505 int c;
506{
507 putc (c, _rl_out_stream);
508}
509#else /* !_MINIX */
510int
511_rl_output_character_function (c)
512 int c;
513{
514 return putc (c, _rl_out_stream);
515}
516#endif /* !_MINIX */
517
518/* Write COUNT characters from STRING to the output stream. */
519void
520_rl_output_some_chars (string, count)
|
489 char *string;
| 521 const char *string;
|
490 int count;
491{
492 fwrite (string, 1, count, _rl_out_stream);
493}
494
495/* Move the cursor back. */
496int
497_rl_backspace (count)
498 int count;
499{
500 register int i;
501
| 522 int count;
523{
524 fwrite (string, 1, count, _rl_out_stream);
525}
526
527/* Move the cursor back. */
528int
529_rl_backspace (count)
530 int count;
531{
532 register int i;
533
|
502 if (term_backspace)
| 534 if (_rl_term_backspace)
|
503 for (i = 0; i < count; i++)
| 535 for (i = 0; i < count; i++)
|
504 tputs (term_backspace, 1, _rl_output_character_function);
| 536 tputs (_rl_term_backspace, 1, _rl_output_character_function);
|
505 else
506 for (i = 0; i < count; i++)
507 putc ('\b', _rl_out_stream);
508 return 0;
509}
510
511/* Move to the start of the next line. */
512int
| 537 else
538 for (i = 0; i < count; i++)
539 putc ('\b', _rl_out_stream);
540 return 0;
541}
542
543/* Move to the start of the next line. */
544int
|
513crlf ()
| 545rl_crlf ()
|
514{
515#if defined (NEW_TTY_DRIVER)
| 546{
547#if defined (NEW_TTY_DRIVER)
|
516 if (term_cr)
517 tputs (term_cr, 1, _rl_output_character_function);
| 548 if (_rl_term_cr)
549 tputs (_rl_term_cr, 1, _rl_output_character_function);
|
518#endif /* NEW_TTY_DRIVER */
519 putc ('\n', _rl_out_stream);
520 return 0;
521}
522
523/* Ring the terminal bell. */
524int
| 550#endif /* NEW_TTY_DRIVER */
551 putc ('\n', _rl_out_stream);
552 return 0;
553}
554
555/* Ring the terminal bell. */
556int
|
525ding ()
| 557rl_ding ()
|
526{
527 if (readline_echoing_p)
528 {
529 switch (_rl_bell_preference)
530 {
531 case NO_BELL:
532 default:
533 break;
534 case VISIBLE_BELL:
| 558{
559 if (readline_echoing_p)
560 {
561 switch (_rl_bell_preference)
562 {
563 case NO_BELL:
564 default:
565 break;
566 case VISIBLE_BELL:
|
535 if (visible_bell)
| 567 if (_rl_visible_bell)
|
536 {
| 568 {
|
537 tputs (visible_bell, 1, _rl_output_character_function);
| 569 tputs (_rl_visible_bell, 1, _rl_output_character_function);
|
538 break;
539 }
540 /* FALLTHROUGH */
541 case AUDIBLE_BELL:
542 fprintf (stderr, "\007");
543 fflush (stderr);
544 break;
545 }
546 return (0);
547 }
548 return (-1);
549}
550
551/* **************************************************************** */
552/* */
553/* Controlling the Meta Key and Keypad */
554/* */
555/* **************************************************************** */
556
557void
558_rl_enable_meta_key ()
559{
560#if !defined (__DJGPP__)
| 570 break;
571 }
572 /* FALLTHROUGH */
573 case AUDIBLE_BELL:
574 fprintf (stderr, "\007");
575 fflush (stderr);
576 break;
577 }
578 return (0);
579 }
580 return (-1);
581}
582
583/* **************************************************************** */
584/* */
585/* Controlling the Meta Key and Keypad */
586/* */
587/* **************************************************************** */
588
589void
590_rl_enable_meta_key ()
591{
592#if !defined (__DJGPP__)
|
561 if (term_has_meta && term_mm)
562 tputs (term_mm, 1, _rl_output_character_function);
| 593 if (term_has_meta && _rl_term_mm)
594 tputs (_rl_term_mm, 1, _rl_output_character_function);
|
563#endif
564}
565
566void
567_rl_control_keypad (on)
568 int on;
569{
570#if !defined (__DJGPP__)
| 595#endif
596}
597
598void
599_rl_control_keypad (on)
600 int on;
601{
602#if !defined (__DJGPP__)
|
571 if (on && term_ks)
572 tputs (term_ks, 1, _rl_output_character_function);
573 else if (!on && term_ke)
574 tputs (term_ke, 1, _rl_output_character_function);
| 603 if (on && _rl_term_ks)
604 tputs (_rl_term_ks, 1, _rl_output_character_function);
605 else if (!on && _rl_term_ke)
606 tputs (_rl_term_ke, 1, _rl_output_character_function);
|
575#endif
576}
| 607#endif
608}
|