1 /* Terminal control module for terminals described by TERMCAP
2 Copyright (C) 1985, 86, 87, 93, 94, 95, 98, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* New redisplay, TTY faces by Gerd Moellmann <gerd@gnu.org>. */
33 #include "character.h"
39 #include "termhooks.h"
40 #include "dispextern.h"
44 /* For now, don't try to include termcap.h. On some systems,
45 configure finds a non-standard termcap.h that the main build
48 #if defined HAVE_TERMCAP_H && 0
51 extern void tputs
P_ ((const char *, int, int (*)(int)));
52 extern int tgetent
P_ ((char *, const char *));
53 extern int tgetflag
P_ ((char *id
));
54 extern int tgetnum
P_ ((char *id
));
65 static void turn_on_face
P_ ((struct frame
*, int face_id
));
66 static void turn_off_face
P_ ((struct frame
*, int face_id
));
67 static void tty_show_cursor
P_ ((void));
68 static void tty_hide_cursor
P_ ((void));
71 tputs (a, (int) (FRAME_HEIGHT (XFRAME (selected_frame)) - curY), cmputc)
72 #define OUTPUT1(a) tputs (a, 1, cmputc)
73 #define OUTPUTL(a, lines) tputs (a, lines, cmputc)
75 #define OUTPUT_IF(a) \
78 tputs (a, (int) (FRAME_HEIGHT (XFRAME (selected_frame)) \
82 #define OUTPUT1_IF(a) do { if (a) tputs (a, 1, cmputc); } while (0)
84 /* Function to use to ring the bell. */
86 Lisp_Object Vring_bell_function
;
88 /* Terminal characteristics that higher levels want to look at.
89 These are all extern'd in termchar.h */
91 int must_write_spaces
; /* Nonzero means spaces in the text
92 must actually be output; can't just skip
93 over some columns to leave them blank. */
94 int min_padding_speed
; /* Speed below which no padding necessary */
96 int line_ins_del_ok
; /* Terminal can insert and delete lines */
97 int char_ins_del_ok
; /* Terminal can insert and delete chars */
98 int scroll_region_ok
; /* Terminal supports setting the
100 int scroll_region_cost
; /* Cost of setting a scroll window,
101 measured in characters */
102 int memory_below_frame
; /* Terminal remembers lines
103 scrolled off bottom */
104 int fast_clear_end_of_line
; /* Terminal has a `ce' string */
106 /* Nonzero means no need to redraw the entire frame on resuming
107 a suspended Emacs. This is useful on terminals with multiple pages,
108 where one page is used for Emacs and another for all else. */
110 int no_redraw_on_reenter
;
112 /* Hook functions that you can set to snap out the functions in this file.
113 These are all extern'd in termhooks.h */
115 void (*cursor_to_hook
) P_ ((int, int));
116 void (*raw_cursor_to_hook
) P_ ((int, int));
117 void (*clear_to_end_hook
) P_ ((void));
118 void (*clear_frame_hook
) P_ ((void));
119 void (*clear_end_of_line_hook
) P_ ((int));
121 void (*ins_del_lines_hook
) P_ ((int, int));
123 void (*delete_glyphs_hook
) P_ ((int));
125 void (*ring_bell_hook
) P_ ((void));
127 void (*reset_terminal_modes_hook
) P_ ((void));
128 void (*set_terminal_modes_hook
) P_ ((void));
129 void (*update_begin_hook
) P_ ((struct frame
*));
130 void (*update_end_hook
) P_ ((struct frame
*));
131 void (*set_terminal_window_hook
) P_ ((int));
132 void (*insert_glyphs_hook
) P_ ((struct glyph
*, int));
133 void (*write_glyphs_hook
) P_ ((struct glyph
*, int));
134 void (*delete_glyphs_hook
) P_ ((int));
136 int (*read_socket_hook
) P_ ((int, struct input_event
*, int, int));
138 void (*frame_up_to_date_hook
) P_ ((struct frame
*));
140 /* Return the current position of the mouse.
142 Set *f to the frame the mouse is in, or zero if the mouse is in no
143 Emacs frame. If it is set to zero, all the other arguments are
146 If the motion started in a scroll bar, set *bar_window to the
147 scroll bar's window, *part to the part the mouse is currently over,
148 *x to the position of the mouse along the scroll bar, and *y to the
149 overall length of the scroll bar.
151 Otherwise, set *bar_window to Qnil, and *x and *y to the column and
152 row of the character cell the mouse is over.
154 Set *time to the time the mouse was at the returned position.
156 This should clear mouse_moved until the next motion
159 void (*mouse_position_hook
) P_ ((FRAME_PTR
*f
, int insist
,
160 Lisp_Object
*bar_window
,
161 enum scroll_bar_part
*part
,
164 unsigned long *time
));
166 /* When reading from a minibuffer in a different frame, Emacs wants
167 to shift the highlight from the selected frame to the mini-buffer's
168 frame; under X, this means it lies about where the focus is.
169 This hook tells the window system code to re-decide where to put
172 void (*frame_rehighlight_hook
) P_ ((FRAME_PTR f
));
174 /* If we're displaying frames using a window system that can stack
175 frames on top of each other, this hook allows you to bring a frame
176 to the front, or bury it behind all the other windows. If this
177 hook is zero, that means the device we're displaying on doesn't
178 support overlapping frames, so there's no need to raise or lower
181 If RAISE is non-zero, F is brought to the front, before all other
182 windows. If RAISE is zero, F is sent to the back, behind all other
185 void (*frame_raise_lower_hook
) P_ ((FRAME_PTR f
, int raise
));
187 /* Set the vertical scroll bar for WINDOW to have its upper left corner
188 at (TOP, LEFT), and be LENGTH rows high. Set its handle to
189 indicate that we are displaying PORTION characters out of a total
190 of WHOLE characters, starting at POSITION. If WINDOW doesn't yet
191 have a scroll bar, create one for it. */
193 void (*set_vertical_scroll_bar_hook
)
194 P_ ((struct window
*window
,
195 int portion
, int whole
, int position
));
198 /* The following three hooks are used when we're doing a thorough
199 redisplay of the frame. We don't explicitly know which scroll bars
200 are going to be deleted, because keeping track of when windows go
201 away is a real pain - can you say set-window-configuration?
202 Instead, we just assert at the beginning of redisplay that *all*
203 scroll bars are to be removed, and then save scroll bars from the
204 fiery pit when we actually redisplay their window. */
206 /* Arrange for all scroll bars on FRAME to be removed at the next call
207 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
208 `*redeem_scroll_bar_hook' is applied to its window before the judgment.
210 This should be applied to each frame each time its window tree is
211 redisplayed, even if it is not displaying scroll bars at the moment;
212 if the HAS_SCROLL_BARS flag has just been turned off, only calling
213 this and the judge_scroll_bars_hook will get rid of them.
215 If non-zero, this hook should be safe to apply to any frame,
216 whether or not it can support scroll bars, and whether or not it is
217 currently displaying them. */
219 void (*condemn_scroll_bars_hook
) P_ ((FRAME_PTR frame
));
221 /* Unmark WINDOW's scroll bar for deletion in this judgement cycle.
222 Note that it's okay to redeem a scroll bar that is not condemned. */
224 void (*redeem_scroll_bar_hook
) P_ ((struct window
*window
));
226 /* Remove all scroll bars on FRAME that haven't been saved since the
227 last call to `*condemn_scroll_bars_hook'.
229 This should be applied to each frame after each time its window
230 tree is redisplayed, even if it is not displaying scroll bars at the
231 moment; if the HAS_SCROLL_BARS flag has just been turned off, only
232 calling this and condemn_scroll_bars_hook will get rid of them.
234 If non-zero, this hook should be safe to apply to any frame,
235 whether or not it can support scroll bars, and whether or not it is
236 currently displaying them. */
238 void (*judge_scroll_bars_hook
) P_ ((FRAME_PTR FRAME
));
240 /* Hook to call in estimate_mode_line_height, if any. */
242 int (* estimate_mode_line_height_hook
) P_ ((struct frame
*f
, enum face_id
));
245 /* Strings, numbers and flags taken from the termcap entry. */
247 char *TS_ins_line
; /* "al" */
248 char *TS_ins_multi_lines
; /* "AL" (one parameter, # lines to insert) */
249 char *TS_bell
; /* "bl" */
250 char *TS_clr_to_bottom
; /* "cd" */
251 char *TS_clr_line
; /* "ce", clear to end of line */
252 char *TS_clr_frame
; /* "cl" */
253 char *TS_set_scroll_region
; /* "cs" (2 params, first line and last line) */
254 char *TS_set_scroll_region_1
; /* "cS" (4 params: total lines,
255 lines above scroll region, lines below it,
256 total lines again) */
257 char *TS_del_char
; /* "dc" */
258 char *TS_del_multi_chars
; /* "DC" (one parameter, # chars to delete) */
259 char *TS_del_line
; /* "dl" */
260 char *TS_del_multi_lines
; /* "DL" (one parameter, # lines to delete) */
261 char *TS_delete_mode
; /* "dm", enter character-delete mode */
262 char *TS_end_delete_mode
; /* "ed", leave character-delete mode */
263 char *TS_end_insert_mode
; /* "ei", leave character-insert mode */
264 char *TS_ins_char
; /* "ic" */
265 char *TS_ins_multi_chars
; /* "IC" (one parameter, # chars to insert) */
266 char *TS_insert_mode
; /* "im", enter character-insert mode */
267 char *TS_pad_inserted_char
; /* "ip". Just padding, no commands. */
268 char *TS_end_keypad_mode
; /* "ke" */
269 char *TS_keypad_mode
; /* "ks" */
270 char *TS_pad_char
; /* "pc", char to use as padding */
271 char *TS_repeat
; /* "rp" (2 params, # times to repeat
272 and character to be repeated) */
273 char *TS_end_standout_mode
; /* "se" */
274 char *TS_fwd_scroll
; /* "sf" */
275 char *TS_standout_mode
; /* "so" */
276 char *TS_rev_scroll
; /* "sr" */
277 char *TS_end_termcap_modes
; /* "te" */
278 char *TS_termcap_modes
; /* "ti" */
279 char *TS_visible_bell
; /* "vb" */
280 char *TS_cursor_normal
; /* "ve" */
281 char *TS_cursor_visible
; /* "vs" */
282 char *TS_cursor_invisible
; /* "vi" */
283 char *TS_set_window
; /* "wi" (4 params, start and end of window,
284 each as vpos and hpos) */
286 /* Value of the "NC" (no_color_video) capability, or 0 if not
289 static int TN_no_color_video
;
291 /* Meaning of bits in no_color_video. Each bit set means that the
292 corresponding attribute cannot be combined with colors. */
296 NC_STANDOUT
= 1 << 0,
297 NC_UNDERLINE
= 1 << 1,
304 NC_ALT_CHARSET
= 1 << 8
307 /* "md" -- turn on bold (extra bright mode). */
309 char *TS_enter_bold_mode
;
311 /* "mh" -- turn on half-bright mode. */
313 char *TS_enter_dim_mode
;
315 /* "mb" -- enter blinking mode. */
317 char *TS_enter_blink_mode
;
319 /* "mr" -- enter reverse video mode. */
321 char *TS_enter_reverse_mode
;
323 /* "us"/"ue" -- start/end underlining. */
325 char *TS_exit_underline_mode
, *TS_enter_underline_mode
;
327 /* "as"/"ae" -- start/end alternate character set. Not really
330 char *TS_enter_alt_charset_mode
, *TS_exit_alt_charset_mode
;
332 /* "me" -- switch appearances off. */
334 char *TS_exit_attribute_mode
;
336 /* "Co" -- number of colors. */
340 /* "pa" -- max. number of color pairs on screen. Not handled yet.
341 Could be a problem if not equal to TN_max_colors * TN_max_colors. */
345 /* "op" -- SVr4 set default pair to its original value. */
349 /* "AF"/"AB" or "Sf"/"Sb"-- set ANSI or SVr4 foreground/background color.
350 1 param, the color index. */
352 char *TS_set_foreground
, *TS_set_background
;
354 int TF_hazeltine
; /* termcap hz flag. */
355 int TF_insmode_motion
; /* termcap mi flag: can move while in insert mode. */
356 int TF_standout_motion
; /* termcap mi flag: can move while in standout mode. */
357 int TF_underscore
; /* termcap ul flag: _ underlines if over-struck on
358 non-blank position. Must clear before writing _. */
359 int TF_teleray
; /* termcap xt flag: many weird consequences.
362 static int RPov
; /* # chars to start a TS_repeat */
364 static int delete_in_insert_mode
; /* delete mode == insert mode */
366 static int se_is_so
; /* 1 if same string both enters and leaves
371 /* The largest frame width in any call to calculate_costs. */
375 /* The largest frame height in any call to calculate_costs. */
377 int max_frame_height
;
379 static int costs_set
; /* Nonzero if costs have been calculated. */
381 int insert_mode
; /* Nonzero when in insert mode. */
382 int standout_mode
; /* Nonzero when in standout mode. */
384 /* Size of window specified by higher levels.
385 This is the number of lines, from the top of frame downwards,
386 which can participate in insert-line/delete-line operations.
388 Effectively it excludes the bottom frame_height - specified_window_size
389 lines from those operations. */
391 int specified_window
;
393 /* Frame currently being redisplayed; 0 if not currently redisplaying.
394 (Direct output does not count). */
396 FRAME_PTR updating_frame
;
398 /* Provided for lisp packages. */
400 static int system_uses_terminfo
;
402 /* Flag used in tty_show/hide_cursor. */
404 static int tty_cursor_hidden
;
408 extern char *tgetstr ();
412 /* We aren't X windows, but we aren't termcap either. This makes me
413 uncertain as to what value to use for frame.output_method. For
414 this file, we'll define FRAME_TERMCAP_P to be zero so that our
415 output hooks get called instead of the termcap functions. Probably
416 the best long-term solution is to define an output_windows_nt... */
418 #undef FRAME_TERMCAP_P
419 #define FRAME_TERMCAP_P(_f_) 0
420 #endif /* WINDOWSNT */
425 if (!NILP (Vring_bell_function
))
427 Lisp_Object function
;
429 /* Temporarily set the global variable to nil
430 so that if we get an error, it stays nil
431 and we don't call it over and over.
433 We don't specbind it, because that would carefully
434 restore the bad value if there's an error
435 and make the loop of errors happen anyway. */
437 function
= Vring_bell_function
;
438 Vring_bell_function
= Qnil
;
442 Vring_bell_function
= function
;
444 else if (!FRAME_TERMCAP_P (XFRAME (selected_frame
)))
445 (*ring_bell_hook
) ();
447 OUTPUT (TS_visible_bell
&& visible_bell
? TS_visible_bell
: TS_bell
);
451 set_terminal_modes ()
453 if (FRAME_TERMCAP_P (XFRAME (selected_frame
)))
455 OUTPUT_IF (TS_termcap_modes
);
456 OUTPUT_IF (TS_cursor_visible
);
457 OUTPUT_IF (TS_keypad_mode
);
461 (*set_terminal_modes_hook
) ();
465 reset_terminal_modes ()
467 if (FRAME_TERMCAP_P (XFRAME (selected_frame
)))
469 turn_off_highlight ();
471 OUTPUT_IF (TS_end_keypad_mode
);
472 OUTPUT_IF (TS_cursor_normal
);
473 OUTPUT_IF (TS_end_termcap_modes
);
474 OUTPUT_IF (TS_orig_pair
);
475 /* Output raw CR so kernel can track the cursor hpos. */
478 else if (reset_terminal_modes_hook
)
479 (*reset_terminal_modes_hook
) ();
487 if (!FRAME_TERMCAP_P (f
))
488 update_begin_hook (f
);
495 if (FRAME_TERMCAP_P (f
))
497 if (!XWINDOW (selected_window
)->cursor_off_p
)
500 background_highlight ();
505 updating_frame
= NULL
;
509 set_terminal_window (size
)
512 if (FRAME_TERMCAP_P (updating_frame
))
514 specified_window
= size
? size
: FRAME_HEIGHT (updating_frame
);
515 if (scroll_region_ok
)
516 set_scroll_region (0, specified_window
);
519 set_terminal_window_hook (size
);
523 set_scroll_region (start
, stop
)
527 struct frame
*sf
= XFRAME (selected_frame
);
529 if (TS_set_scroll_region
)
530 buf
= tparam (TS_set_scroll_region
, 0, 0, start
, stop
- 1);
531 else if (TS_set_scroll_region_1
)
532 buf
= tparam (TS_set_scroll_region_1
, 0, 0,
533 FRAME_HEIGHT (sf
), start
,
534 FRAME_HEIGHT (sf
) - stop
,
537 buf
= tparam (TS_set_window
, 0, 0, start
, 0, stop
, FRAME_WIDTH (sf
));
549 OUTPUT (TS_insert_mode
);
557 OUTPUT (TS_end_insert_mode
);
561 /* Handle highlighting. */
564 turn_off_highlight ()
567 OUTPUT_IF (TS_end_standout_mode
);
575 OUTPUT_IF (TS_standout_mode
);
583 turn_off_highlight ();
585 turn_on_highlight ();
589 /* Make cursor invisible. */
594 if (tty_cursor_hidden
== 0)
596 tty_cursor_hidden
= 1;
597 OUTPUT_IF (TS_cursor_invisible
);
602 /* Ensure that cursor is visible. */
607 if (tty_cursor_hidden
)
609 tty_cursor_hidden
= 0;
610 OUTPUT_IF (TS_cursor_normal
);
611 OUTPUT_IF (TS_cursor_visible
);
616 /* Set standout mode to the state it should be in for
617 empty space inside windows. What this is,
618 depends on the user option inverse-video. */
621 background_highlight ()
624 turn_on_highlight ();
626 turn_off_highlight ();
629 /* Set standout mode to the mode specified for the text to be output. */
632 highlight_if_desired ()
635 turn_on_highlight ();
637 turn_off_highlight ();
641 /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are
642 frame-relative coordinates. */
645 cursor_to (vpos
, hpos
)
648 struct frame
*f
= updating_frame
? updating_frame
: XFRAME (selected_frame
);
650 if (! FRAME_TERMCAP_P (f
) && cursor_to_hook
)
652 (*cursor_to_hook
) (vpos
, hpos
);
656 /* Detect the case where we are called from reset_sys_modes
657 and the costs have never been calculated. Do nothing. */
661 if (curY
== vpos
&& curX
== hpos
)
663 if (!TF_standout_motion
)
664 background_highlight ();
665 if (!TF_insmode_motion
)
670 /* Similar but don't take any account of the wasted characters. */
673 raw_cursor_to (row
, col
)
676 struct frame
*f
= updating_frame
? updating_frame
: XFRAME (selected_frame
);
677 if (! FRAME_TERMCAP_P (f
))
679 (*raw_cursor_to_hook
) (row
, col
);
682 if (curY
== row
&& curX
== col
)
684 if (!TF_standout_motion
)
685 background_highlight ();
686 if (!TF_insmode_motion
)
691 /* Erase operations */
693 /* clear from cursor to end of frame */
699 if (clear_to_end_hook
&& ! FRAME_TERMCAP_P (updating_frame
))
701 (*clear_to_end_hook
) ();
704 if (TS_clr_to_bottom
)
706 background_highlight ();
707 OUTPUT (TS_clr_to_bottom
);
711 for (i
= curY
; i
< FRAME_HEIGHT (XFRAME (selected_frame
)); i
++)
714 clear_end_of_line (FRAME_WIDTH (XFRAME (selected_frame
)));
719 /* Clear entire frame */
724 struct frame
*sf
= XFRAME (selected_frame
);
727 && ! FRAME_TERMCAP_P ((updating_frame
? updating_frame
: sf
)))
729 (*clear_frame_hook
) ();
734 background_highlight ();
735 OUTPUT (TS_clr_frame
);
745 /* Clear from cursor to end of line.
746 Assume that the line is already clear starting at column first_unused_hpos.
748 Note that the cursor may be moved, on terminals lacking a `ce' string. */
751 clear_end_of_line (first_unused_hpos
)
752 int first_unused_hpos
;
756 if (clear_end_of_line_hook
757 && ! FRAME_TERMCAP_P ((updating_frame
759 : XFRAME (selected_frame
))))
761 (*clear_end_of_line_hook
) (first_unused_hpos
);
765 /* Detect the case where we are called from reset_sys_modes
766 and the costs have never been calculated. Do nothing. */
770 if (curX
>= first_unused_hpos
)
772 background_highlight ();
775 OUTPUT1 (TS_clr_line
);
778 { /* have to do it the hard way */
779 struct frame
*sf
= XFRAME (selected_frame
);
782 /* Do not write in last row last col with Auto-wrap on. */
783 if (AutoWrap
&& curY
== FRAME_HEIGHT (sf
) - 1
784 && first_unused_hpos
== FRAME_WIDTH (sf
))
787 for (i
= curX
; i
< first_unused_hpos
; i
++)
790 fputc (' ', termscript
);
793 cmplus (first_unused_hpos
- curX
);
797 /* Encode SRC_LEN glyphs starting at SRC to terminal output codes and
798 store them at DST. Do not write more than DST_LEN bytes. That may
799 require stopping before all SRC_LEN input glyphs have been
802 We store the number of glyphs actually converted in *CONSUMED. The
803 return value is the number of bytes store in DST. */
806 encode_terminal_code (src
, dst
, src_len
, dst_len
, consumed
)
810 int dst_len
, *consumed
;
812 struct glyph
*src_start
= src
, *src_end
= src
+ src_len
;
813 unsigned char *dst_start
= dst
, *dst_end
= dst
+ dst_len
;
815 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *buf
;
817 register int tlen
= GLYPH_TABLE_LENGTH
;
818 register Lisp_Object
*tbase
= GLYPH_TABLE_BASE
;
819 struct coding_system
*coding
;
821 /* If terminal_coding does any conversion, use it, otherwise use
822 safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
823 because it always return 1 if the member src_multibyte is 1. */
824 coding
= (terminal_coding
.common_flags
& CODING_REQUIRE_ENCODING_MASK
826 : &safe_terminal_coding
);
828 while (src
< src_end
)
830 /* We must skip glyphs to be padded for a wide character. */
831 if (! CHAR_GLYPH_PADDING_P (*src
))
833 g
= GLYPH_FROM_CHAR_GLYPH (src
[0]);
835 if (g
< 0 || g
>= tlen
)
837 /* This glyph doesn't have an entry in Vglyph_table. */
838 if (! CHAR_VALID_P (src
->u
.ch
, 0))
842 coding
->src_multibyte
= 0;
846 len
= CHAR_STRING (src
->u
.ch
, workbuf
);
848 coding
->src_multibyte
= 1;
853 /* This glyph has an entry in Vglyph_table,
854 so process any alias before testing for simpleness. */
855 GLYPH_FOLLOW_ALIASES (tbase
, tlen
, g
);
857 if (GLYPH_SIMPLE_P (tbase
, tlen
, g
))
859 /* We set the multi-byte form of a character in G
860 (that should be an ASCII character) at
862 workbuf
[0] = FAST_GLYPH_CHAR (g
);
865 coding
->src_multibyte
= 0;
869 /* We have a string in Vglyph_table. */
870 len
= GLYPH_LENGTH (tbase
, g
);
871 buf
= GLYPH_STRING (tbase
, g
);
872 coding
->src_multibyte
= STRING_MULTIBYTE (tbase
[g
]);
876 coding
->source
= buf
;
877 coding
->destination
= dst
;
878 coding
->dst_bytes
= dst_end
- dst
;
879 encode_coding_object (coding
, Qnil
, 0, 0, 1, len
, Qnil
);
880 len
-= coding
->consumed
;
881 dst
+= coding
->produced
;
882 if (coding
->result
== CODING_RESULT_INSUFFICIENT_DST
)
883 /* The remaining output buffer is too short. We must
884 break the loop here without increasing SRC so that the
885 next call of this function starts from the same glyph. */
890 /* This is the case that a code of the range 0200..0237
891 exists in buf. We must just write out such a code. */
892 buf
+= coding
->consumed
;
900 *consumed
= src
- src_start
;
901 return (dst
- dst_start
);
906 write_glyphs (string
, len
)
907 register struct glyph
*string
;
910 int produced
, consumed
;
911 struct frame
*sf
= XFRAME (selected_frame
);
912 struct frame
*f
= updating_frame
? updating_frame
: sf
;
913 unsigned char conversion_buffer
[1024];
914 int conversion_buffer_size
= sizeof conversion_buffer
;
916 if (write_glyphs_hook
917 && ! FRAME_TERMCAP_P (f
))
919 (*write_glyphs_hook
) (string
, len
);
926 /* Don't dare write in last column of bottom line, if Auto-Wrap,
927 since that would scroll the whole frame on some terminals. */
930 && curY
+ 1 == FRAME_HEIGHT (sf
)
931 && (curX
+ len
) == FRAME_WIDTH (sf
))
938 /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
940 terminal_coding
.mode
&= ~CODING_MODE_LAST_BLOCK
;
944 /* Identify a run of glyphs with the same face. */
945 int face_id
= string
->face_id
;
948 for (n
= 1; n
< len
; ++n
)
949 if (string
[n
].face_id
!= face_id
)
952 /* Turn appearance modes of the face of the run on. */
953 highlight_if_desired ();
954 turn_on_face (f
, face_id
);
958 /* We use a fixed size (1024 bytes) of conversion buffer.
959 Usually it is sufficient, but if not, we just repeat the
961 produced
= encode_terminal_code (string
, conversion_buffer
,
962 n
, conversion_buffer_size
,
966 fwrite (conversion_buffer
, 1, produced
, stdout
);
970 fwrite (conversion_buffer
, 1, produced
, termscript
);
977 /* Turn appearance modes off. */
978 turn_off_face (f
, face_id
);
979 turn_off_highlight ();
982 /* We may have to output some codes to terminate the writing. */
983 if (CODING_REQUIRE_FLUSHING (&terminal_coding
))
985 terminal_coding
.mode
|= CODING_MODE_LAST_BLOCK
;
986 terminal_coding
.source
= (unsigned char *) "";
987 terminal_coding
.destination
= conversion_buffer
;
988 terminal_coding
.dst_bytes
= conversion_buffer_size
;
989 encode_coding_object (&terminal_coding
, Qnil
, 0, 0, 0, 0, Qnil
);
990 if (terminal_coding
.produced
> 0)
992 fwrite (conversion_buffer
, 1, terminal_coding
.produced
, stdout
);
996 fwrite (conversion_buffer
, 1, terminal_coding
.produced
,
1004 /* If start is zero, insert blanks instead of a string at start */
1007 insert_glyphs (start
, len
)
1008 register struct glyph
*start
;
1012 struct glyph
*glyph
= NULL
;
1013 struct frame
*f
, *sf
;
1018 if (insert_glyphs_hook
)
1020 (*insert_glyphs_hook
) (start
, len
);
1024 sf
= XFRAME (selected_frame
);
1025 f
= updating_frame
? updating_frame
: sf
;
1027 if (TS_ins_multi_chars
)
1029 buf
= tparam (TS_ins_multi_chars
, 0, 0, len
);
1033 write_glyphs (start
, len
);
1039 /* The bit CODING_MODE_LAST_BLOCK should be set to 1 only at the tail. */
1040 terminal_coding
.mode
&= ~CODING_MODE_LAST_BLOCK
;
1043 int produced
, consumed
;
1044 unsigned char conversion_buffer
[1024];
1045 int conversion_buffer_size
= sizeof conversion_buffer
;
1047 OUTPUT1_IF (TS_ins_char
);
1050 conversion_buffer
[0] = SPACEGLYPH
;
1055 highlight_if_desired ();
1056 turn_on_face (f
, start
->face_id
);
1059 /* We must open sufficient space for a character which
1060 occupies more than one column. */
1061 while (len
&& CHAR_GLYPH_PADDING_P (*start
))
1063 OUTPUT1_IF (TS_ins_char
);
1068 /* This is the last glyph. */
1069 terminal_coding
.mode
|= CODING_MODE_LAST_BLOCK
;
1071 /* The size of conversion buffer (1024 bytes) is surely
1072 sufficient for just one glyph. */
1073 produced
= encode_terminal_code (glyph
, conversion_buffer
, 1,
1074 conversion_buffer_size
, &consumed
);
1079 fwrite (conversion_buffer
, 1, produced
, stdout
);
1080 if (ferror (stdout
))
1083 fwrite (conversion_buffer
, 1, produced
, termscript
);
1086 OUTPUT1_IF (TS_pad_inserted_char
);
1089 turn_off_face (f
, glyph
->face_id
);
1090 turn_off_highlight ();
1104 if (delete_glyphs_hook
&& ! FRAME_TERMCAP_P (updating_frame
))
1106 (*delete_glyphs_hook
) (n
);
1110 if (delete_in_insert_mode
)
1117 OUTPUT_IF (TS_delete_mode
);
1120 if (TS_del_multi_chars
)
1122 buf
= tparam (TS_del_multi_chars
, 0, 0, n
);
1127 for (i
= 0; i
< n
; i
++)
1128 OUTPUT1 (TS_del_char
);
1129 if (!delete_in_insert_mode
)
1130 OUTPUT_IF (TS_end_delete_mode
);
1133 /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */
1136 ins_del_lines (vpos
, n
)
1139 char *multi
= n
> 0 ? TS_ins_multi_lines
: TS_del_multi_lines
;
1140 char *single
= n
> 0 ? TS_ins_line
: TS_del_line
;
1141 char *scroll
= n
> 0 ? TS_rev_scroll
: TS_fwd_scroll
;
1144 register int i
= n
> 0 ? n
: -n
;
1147 if (ins_del_lines_hook
&& ! FRAME_TERMCAP_P (updating_frame
))
1149 (*ins_del_lines_hook
) (vpos
, n
);
1153 sf
= XFRAME (selected_frame
);
1155 /* If the lines below the insertion are being pushed
1156 into the end of the window, this is the same as clearing;
1157 and we know the lines are already clear, since the matching
1158 deletion has already been done. So can ignore this. */
1159 /* If the lines below the deletion are blank lines coming
1160 out of the end of the window, don't bother,
1161 as there will be a matching inslines later that will flush them. */
1162 if (scroll_region_ok
&& vpos
+ i
>= specified_window
)
1164 if (!memory_below_frame
&& vpos
+ i
>= FRAME_HEIGHT (sf
))
1169 raw_cursor_to (vpos
, 0);
1170 background_highlight ();
1171 buf
= tparam (multi
, 0, 0, i
);
1177 raw_cursor_to (vpos
, 0);
1178 background_highlight ();
1186 set_scroll_region (vpos
, specified_window
);
1188 raw_cursor_to (specified_window
- 1, 0);
1190 raw_cursor_to (vpos
, 0);
1191 background_highlight ();
1193 OUTPUTL (scroll
, specified_window
- vpos
);
1194 set_scroll_region (0, specified_window
);
1197 if (!scroll_region_ok
&& memory_below_frame
&& n
< 0)
1199 cursor_to (FRAME_HEIGHT (sf
) + n
, 0);
1204 /* Compute cost of sending "str", in characters,
1205 not counting any line-dependent padding. */
1213 tputs (str
, 0, evalcost
);
1217 /* Compute cost of sending "str", in characters,
1218 counting any line-dependent padding at one line. */
1221 string_cost_one_line (str
)
1226 tputs (str
, 1, evalcost
);
1230 /* Compute per line amount of line-dependent padding,
1231 in tenths of characters. */
1239 tputs (str
, 0, evalcost
);
1242 tputs (str
, 10, evalcost
);
1247 /* char_ins_del_cost[n] is cost of inserting N characters.
1248 char_ins_del_cost[-n] is cost of deleting N characters.
1249 The length of this vector is based on max_frame_width. */
1251 int *char_ins_del_vector
;
1253 #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_WIDTH ((f))])
1258 calculate_ins_del_char_costs (frame
)
1261 int ins_startup_cost
, del_startup_cost
;
1262 int ins_cost_per_char
, del_cost_per_char
;
1266 if (TS_ins_multi_chars
)
1268 ins_cost_per_char
= 0;
1269 ins_startup_cost
= string_cost_one_line (TS_ins_multi_chars
);
1271 else if (TS_ins_char
|| TS_pad_inserted_char
1272 || (TS_insert_mode
&& TS_end_insert_mode
))
1274 ins_startup_cost
= (30 * (string_cost (TS_insert_mode
)
1275 + string_cost (TS_end_insert_mode
))) / 100;
1276 ins_cost_per_char
= (string_cost_one_line (TS_ins_char
)
1277 + string_cost_one_line (TS_pad_inserted_char
));
1281 ins_startup_cost
= 9999;
1282 ins_cost_per_char
= 0;
1285 if (TS_del_multi_chars
)
1287 del_cost_per_char
= 0;
1288 del_startup_cost
= string_cost_one_line (TS_del_multi_chars
);
1290 else if (TS_del_char
)
1292 del_startup_cost
= (string_cost (TS_delete_mode
)
1293 + string_cost (TS_end_delete_mode
));
1294 if (delete_in_insert_mode
)
1295 del_startup_cost
/= 2;
1296 del_cost_per_char
= string_cost_one_line (TS_del_char
);
1300 del_startup_cost
= 9999;
1301 del_cost_per_char
= 0;
1304 /* Delete costs are at negative offsets */
1305 p
= &char_ins_del_cost (frame
)[0];
1306 for (i
= FRAME_WIDTH (frame
); --i
>= 0;)
1307 *--p
= (del_startup_cost
+= del_cost_per_char
);
1309 /* Doing nothing is free */
1310 p
= &char_ins_del_cost (frame
)[0];
1313 /* Insert costs are at positive offsets */
1314 for (i
= FRAME_WIDTH (frame
); --i
>= 0;)
1315 *p
++ = (ins_startup_cost
+= ins_cost_per_char
);
1319 calculate_costs (frame
)
1322 register char *f
= (TS_set_scroll_region
1323 ? TS_set_scroll_region
1324 : TS_set_scroll_region_1
);
1326 FRAME_COST_BAUD_RATE (frame
) = baud_rate
;
1328 scroll_region_cost
= string_cost (f
);
1330 /* These variables are only used for terminal stuff. They are allocated
1331 once for the terminal frame of X-windows emacs, but not used afterwards.
1333 char_ins_del_vector (i.e., char_ins_del_cost) isn't used because
1334 X turns off char_ins_del_ok. */
1336 max_frame_height
= max (max_frame_height
, FRAME_HEIGHT (frame
));
1337 max_frame_width
= max (max_frame_width
, FRAME_WIDTH (frame
));
1341 if (char_ins_del_vector
!= 0)
1343 = (int *) xrealloc (char_ins_del_vector
,
1345 + 2 * max_frame_width
* sizeof (int)));
1348 = (int *) xmalloc (sizeof (int)
1349 + 2 * max_frame_width
* sizeof (int));
1351 bzero (char_ins_del_vector
, (sizeof (int)
1352 + 2 * max_frame_width
* sizeof (int)));
1354 if (f
&& (!TS_ins_line
&& !TS_del_line
))
1355 do_line_insertion_deletion_costs (frame
,
1356 TS_rev_scroll
, TS_ins_multi_lines
,
1357 TS_fwd_scroll
, TS_del_multi_lines
,
1360 do_line_insertion_deletion_costs (frame
,
1361 TS_ins_line
, TS_ins_multi_lines
,
1362 TS_del_line
, TS_del_multi_lines
,
1365 calculate_ins_del_char_costs (frame
);
1367 /* Don't use TS_repeat if its padding is worse than sending the chars */
1368 if (TS_repeat
&& per_line_cost (TS_repeat
) * baud_rate
< 9000)
1369 RPov
= string_cost (TS_repeat
);
1371 RPov
= FRAME_WIDTH (frame
) * 2;
1373 cmcostinit (); /* set up cursor motion costs */
1380 /* Termcap capability names that correspond directly to X keysyms.
1381 Some of these (marked "terminfo") aren't supplied by old-style
1382 (Berkeley) termcap entries. They're listed in X keysym order;
1383 except we put the keypad keys first, so that if they clash with
1384 other keys (as on the IBM PC keyboard) they get overridden.
1387 static struct fkey_table keys
[] =
1389 {"kh", "home"}, /* termcap */
1390 {"kl", "left"}, /* termcap */
1391 {"ku", "up"}, /* termcap */
1392 {"kr", "right"}, /* termcap */
1393 {"kd", "down"}, /* termcap */
1394 {"%8", "prior"}, /* terminfo */
1395 {"%5", "next"}, /* terminfo */
1396 {"@7", "end"}, /* terminfo */
1397 {"@1", "begin"}, /* terminfo */
1398 {"*6", "select"}, /* terminfo */
1399 {"%9", "print"}, /* terminfo */
1400 {"@4", "execute"}, /* terminfo --- actually the `command' key */
1402 * "insert" --- see below
1404 {"&8", "undo"}, /* terminfo */
1405 {"%0", "redo"}, /* terminfo */
1406 {"%7", "menu"}, /* terminfo --- actually the `options' key */
1407 {"@0", "find"}, /* terminfo */
1408 {"@2", "cancel"}, /* terminfo */
1409 {"%1", "help"}, /* terminfo */
1411 * "break" goes here, but can't be reliably intercepted with termcap
1413 {"&4", "reset"}, /* terminfo --- actually `restart' */
1415 * "system" and "user" --- no termcaps
1417 {"kE", "clearline"}, /* terminfo */
1418 {"kA", "insertline"}, /* terminfo */
1419 {"kL", "deleteline"}, /* terminfo */
1420 {"kI", "insertchar"}, /* terminfo */
1421 {"kD", "deletechar"}, /* terminfo */
1422 {"kB", "backtab"}, /* terminfo */
1424 * "kp_backtab", "kp-space", "kp-tab" --- no termcaps
1426 {"@8", "kp-enter"}, /* terminfo */
1428 * "kp-f1", "kp-f2", "kp-f3" "kp-f4",
1429 * "kp-multiply", "kp-add", "kp-separator",
1430 * "kp-subtract", "kp-decimal", "kp-divide", "kp-0";
1431 * --- no termcaps for any of these.
1433 {"K4", "kp-1"}, /* terminfo */
1435 * "kp-2" --- no termcap
1437 {"K5", "kp-3"}, /* terminfo */
1439 * "kp-4" --- no termcap
1441 {"K2", "kp-5"}, /* terminfo */
1443 * "kp-6" --- no termcap
1445 {"K1", "kp-7"}, /* terminfo */
1447 * "kp-8" --- no termcap
1449 {"K3", "kp-9"}, /* terminfo */
1451 * "kp-equal" --- no termcap
1464 static char **term_get_fkeys_arg
;
1465 static Lisp_Object
term_get_fkeys_1 ();
1467 /* Find the escape codes sent by the function keys for Vfunction_key_map.
1468 This function scans the termcap function key sequence entries, and
1469 adds entries to Vfunction_key_map for each function key it finds. */
1472 term_get_fkeys (address
)
1475 /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp
1476 errors during the call. The only errors should be from Fdefine_key
1477 when given a key sequence containing an invalid prefix key. If the
1478 termcap defines function keys which use a prefix that is already bound
1479 to a command by the default bindings, we should silently ignore that
1480 function key specification, rather than giving the user an error and
1481 refusing to run at all on such a terminal. */
1483 extern Lisp_Object
Fidentity ();
1484 term_get_fkeys_arg
= address
;
1485 internal_condition_case (term_get_fkeys_1
, Qerror
, Fidentity
);
1493 char **address
= term_get_fkeys_arg
;
1495 /* This can happen if CANNOT_DUMP or with strange options. */
1497 Vfunction_key_map
= Fmake_sparse_keymap (Qnil
);
1499 for (i
= 0; i
< (sizeof (keys
)/sizeof (keys
[0])); i
++)
1501 char *sequence
= tgetstr (keys
[i
].cap
, address
);
1503 Fdefine_key (Vfunction_key_map
, build_string (sequence
),
1504 Fmake_vector (make_number (1),
1505 intern (keys
[i
].name
)));
1508 /* The uses of the "k0" capability are inconsistent; sometimes it
1509 describes F10, whereas othertimes it describes F0 and "k;" describes F10.
1510 We will attempt to politely accommodate both systems by testing for
1511 "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10.
1514 char *k_semi
= tgetstr ("k;", address
);
1515 char *k0
= tgetstr ("k0", address
);
1516 char *k0_name
= "f10";
1521 /* Define f0 first, so that f10 takes precedence in case the
1522 key sequences happens to be the same. */
1523 Fdefine_key (Vfunction_key_map
, build_string (k0
),
1524 Fmake_vector (make_number (1), intern ("f0")));
1525 Fdefine_key (Vfunction_key_map
, build_string (k_semi
),
1526 Fmake_vector (make_number (1), intern ("f10")));
1529 Fdefine_key (Vfunction_key_map
, build_string (k0
),
1530 Fmake_vector (make_number (1), intern (k0_name
)));
1533 /* Set up cookies for numbered function keys above f10. */
1535 char fcap
[3], fkey
[4];
1537 fcap
[0] = 'F'; fcap
[2] = '\0';
1538 for (i
= 11; i
< 64; i
++)
1541 fcap
[1] = '1' + i
- 11;
1543 fcap
[1] = 'A' + i
- 20;
1545 fcap
[1] = 'a' + i
- 46;
1548 char *sequence
= tgetstr (fcap
, address
);
1551 sprintf (fkey
, "f%d", i
);
1552 Fdefine_key (Vfunction_key_map
, build_string (sequence
),
1553 Fmake_vector (make_number (1),
1561 * Various mappings to try and get a better fit.
1564 #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \
1565 if (!tgetstr (cap1, address)) \
1567 char *sequence = tgetstr (cap2, address); \
1569 Fdefine_key (Vfunction_key_map, build_string (sequence), \
1570 Fmake_vector (make_number (1), \
1574 /* if there's no key_next keycap, map key_npage to `next' keysym */
1575 CONDITIONAL_REASSIGN ("%5", "kN", "next");
1576 /* if there's no key_prev keycap, map key_ppage to `previous' keysym */
1577 CONDITIONAL_REASSIGN ("%8", "kP", "prior");
1578 /* if there's no key_dc keycap, map key_ic to `insert' keysym */
1579 CONDITIONAL_REASSIGN ("kD", "kI", "insert");
1580 /* if there's no key_end keycap, map key_ll to 'end' keysym */
1581 CONDITIONAL_REASSIGN ("@7", "kH", "end");
1583 /* IBM has their own non-standard dialect of terminfo.
1584 If the standard name isn't found, try the IBM name. */
1585 CONDITIONAL_REASSIGN ("kB", "KO", "backtab");
1586 CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */
1587 CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */
1588 CONDITIONAL_REASSIGN ("%7", "ki", "menu");
1589 CONDITIONAL_REASSIGN ("@7", "kw", "end");
1590 CONDITIONAL_REASSIGN ("F1", "k<", "f11");
1591 CONDITIONAL_REASSIGN ("F2", "k>", "f12");
1592 CONDITIONAL_REASSIGN ("%1", "kq", "help");
1593 CONDITIONAL_REASSIGN ("*6", "kU", "select");
1594 #undef CONDITIONAL_REASSIGN
1601 /***********************************************************************
1602 Character Display Information
1603 ***********************************************************************/
1605 static void append_glyph
P_ ((struct it
*));
1608 /* Append glyphs to IT's glyph_row. Called from produce_glyphs for
1609 terminal frames if IT->glyph_row != NULL. IT->c is the character
1610 for which to produce glyphs; IT->face_id contains the character's
1611 face. Padding glyphs are appended if IT->c has a IT->pixel_width >
1618 struct glyph
*glyph
, *end
;
1621 xassert (it
->glyph_row
);
1622 glyph
= (it
->glyph_row
->glyphs
[it
->area
]
1623 + it
->glyph_row
->used
[it
->area
]);
1624 end
= it
->glyph_row
->glyphs
[1 + it
->area
];
1627 i
< it
->pixel_width
&& glyph
< end
;
1630 glyph
->type
= CHAR_GLYPH
;
1631 glyph
->pixel_width
= 1;
1632 glyph
->u
.ch
= it
->c
;
1633 glyph
->face_id
= it
->face_id
;
1634 glyph
->padding_p
= i
> 0;
1635 glyph
->charpos
= CHARPOS (it
->position
);
1636 glyph
->object
= it
->object
;
1638 ++it
->glyph_row
->used
[it
->area
];
1644 /* Produce glyphs for the display element described by IT. The
1645 function fills output fields of IT with pixel information like the
1646 pixel width and height of a character, and maybe produces glyphs at
1647 the same time if IT->glyph_row is non-null. See the explanation of
1648 struct display_iterator in dispextern.h for an overview. */
1654 /* If a hook is installed, let it do the work. */
1655 xassert (it
->what
== IT_CHARACTER
1656 || it
->what
== IT_COMPOSITION
1657 || it
->what
== IT_IMAGE
1658 || it
->what
== IT_STRETCH
);
1660 /* Nothing but characters are supported on terminal frames. For a
1661 composition sequence, it->c is the first character of the
1663 xassert (it
->what
== IT_CHARACTER
1664 || it
->what
== IT_COMPOSITION
);
1666 if (it
->c
>= 040 && it
->c
< 0177)
1668 it
->pixel_width
= it
->nglyphs
= 1;
1672 else if (it
->c
== '\n')
1673 it
->pixel_width
= it
->nglyphs
= 0;
1674 else if (it
->c
== '\t')
1676 int absolute_x
= (it
->current_x
1677 + it
->continuation_lines_width
);
1679 = (((1 + absolute_x
+ it
->tab_width
- 1)
1684 /* If part of the TAB has been displayed on the previous line
1685 which is continued now, continuation_lines_width will have
1686 been incremented already by the part that fitted on the
1687 continued line. So, we will get the right number of spaces
1689 nspaces
= next_tab_x
- absolute_x
;
1696 it
->pixel_width
= it
->len
= 1;
1704 it
->pixel_width
= nspaces
;
1705 it
->nglyphs
= nspaces
;
1707 else if (SINGLE_BYTE_CHAR_P (it
->c
))
1709 /* Coming here means that it->c is from display table, thus we
1710 must send the code as is to the terminal. Although there's
1711 no way to know how many columns it occupies on a screen, it
1712 is a good assumption that a single byte code has 1-column
1714 it
->pixel_width
= it
->nglyphs
= 1;
1720 it
->pixel_width
= CHAR_WIDTH (it
->c
);
1721 it
->nglyphs
= it
->pixel_width
;
1727 /* Advance current_x by the pixel width as a convenience for
1729 if (it
->area
== TEXT_AREA
)
1730 it
->current_x
+= it
->pixel_width
;
1731 it
->ascent
= it
->max_ascent
= it
->phys_ascent
= it
->max_phys_ascent
= 0;
1732 it
->descent
= it
->max_descent
= it
->phys_descent
= it
->max_phys_descent
= 1;
1736 /* Get information about special display element WHAT in an
1737 environment described by IT. WHAT is one of IT_TRUNCATION or
1738 IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a
1739 non-null glyph_row member. This function ensures that fields like
1740 face_id, c, len of IT are left untouched. */
1743 produce_special_glyphs (it
, what
)
1745 enum display_element_type what
;
1751 temp_it
.what
= IT_CHARACTER
;
1753 temp_it
.object
= make_number (0);
1754 bzero (&temp_it
.current
, sizeof temp_it
.current
);
1756 if (what
== IT_CONTINUATION
)
1758 /* Continuation glyph. */
1760 && INTEGERP (DISP_CONTINUE_GLYPH (it
->dp
))
1761 && GLYPH_CHAR_VALID_P (XINT (DISP_CONTINUE_GLYPH (it
->dp
))))
1763 temp_it
.c
= FAST_GLYPH_CHAR (XINT (DISP_CONTINUE_GLYPH (it
->dp
)));
1764 temp_it
.len
= CHAR_BYTES (temp_it
.c
);
1769 produce_glyphs (&temp_it
);
1770 it
->pixel_width
= temp_it
.pixel_width
;
1771 it
->nglyphs
= temp_it
.pixel_width
;
1773 else if (what
== IT_TRUNCATION
)
1775 /* Truncation glyph. */
1777 && INTEGERP (DISP_TRUNC_GLYPH (it
->dp
))
1778 && GLYPH_CHAR_VALID_P (XINT (DISP_TRUNC_GLYPH (it
->dp
))))
1780 temp_it
.c
= FAST_GLYPH_CHAR (XINT (DISP_TRUNC_GLYPH (it
->dp
)));
1781 temp_it
.len
= CHAR_BYTES (temp_it
.c
);
1786 produce_glyphs (&temp_it
);
1787 it
->pixel_width
= temp_it
.pixel_width
;
1788 it
->nglyphs
= temp_it
.pixel_width
;
1795 /* Return an estimation of the pixel height of mode or top lines on
1796 frame F. FACE_ID specifies what line's height to estimate. */
1799 estimate_mode_line_height (f
, face_id
)
1801 enum face_id face_id
;
1803 if (estimate_mode_line_height_hook
)
1804 return estimate_mode_line_height_hook (f
, face_id
);
1811 /***********************************************************************
1813 ***********************************************************************/
1815 /* Value is non-zero if attribute ATTR may be used. ATTR should be
1816 one of the enumerators from enum no_color_bit, or a bit set built
1817 from them. Some display attributes may not be used together with
1818 color; the termcap capability `NC' specifies which ones. */
1820 #define MAY_USE_WITH_COLORS_P(ATTR) \
1821 (TN_max_colors > 0 \
1822 ? (TN_no_color_video & (ATTR)) == 0 \
1825 /* Turn appearances of face FACE_ID on tty frame F on. */
1828 turn_on_face (f
, face_id
)
1832 struct face
*face
= FACE_FROM_ID (f
, face_id
);
1833 long fg
= face
->foreground
;
1834 long bg
= face
->background
;
1836 /* Do this first because TS_end_standout_mode may be the same
1837 as TS_exit_attribute_mode, which turns all appearances off. */
1838 if (MAY_USE_WITH_COLORS_P (NC_REVERSE
))
1840 if (TN_max_colors
> 0)
1842 if (fg
>= 0 && bg
>= 0)
1844 /* If the terminal supports colors, we can set them
1845 below without using reverse video. The face's fg
1846 and bg colors are set as they should appear on
1847 the screen, i.e. they take the inverse-video'ness
1848 of the face already into account. */
1850 else if (inverse_video
)
1852 if (fg
== FACE_TTY_DEFAULT_FG_COLOR
1853 || bg
== FACE_TTY_DEFAULT_BG_COLOR
)
1854 toggle_highlight ();
1858 if (fg
== FACE_TTY_DEFAULT_BG_COLOR
1859 || bg
== FACE_TTY_DEFAULT_FG_COLOR
)
1860 toggle_highlight ();
1865 /* If we can't display colors, use reverse video
1866 if the face specifies that. */
1869 if (fg
== FACE_TTY_DEFAULT_FG_COLOR
1870 || bg
== FACE_TTY_DEFAULT_BG_COLOR
)
1871 toggle_highlight ();
1875 if (fg
== FACE_TTY_DEFAULT_BG_COLOR
1876 || bg
== FACE_TTY_DEFAULT_FG_COLOR
)
1877 toggle_highlight ();
1882 if (face
->tty_bold_p
)
1884 if (MAY_USE_WITH_COLORS_P (NC_BOLD
))
1885 OUTPUT1_IF (TS_enter_bold_mode
);
1887 else if (face
->tty_dim_p
)
1888 if (MAY_USE_WITH_COLORS_P (NC_DIM
))
1889 OUTPUT1_IF (TS_enter_dim_mode
);
1891 /* Alternate charset and blinking not yet used. */
1892 if (face
->tty_alt_charset_p
1893 && MAY_USE_WITH_COLORS_P (NC_ALT_CHARSET
))
1894 OUTPUT1_IF (TS_enter_alt_charset_mode
);
1896 if (face
->tty_blinking_p
1897 && MAY_USE_WITH_COLORS_P (NC_BLINK
))
1898 OUTPUT1_IF (TS_enter_blink_mode
);
1900 if (face
->tty_underline_p
&& MAY_USE_WITH_COLORS_P (NC_UNDERLINE
))
1901 OUTPUT1_IF (TS_enter_underline_mode
);
1903 if (TN_max_colors
> 0)
1907 if (fg
>= 0 && TS_set_foreground
)
1909 p
= tparam (TS_set_foreground
, NULL
, 0, (int) fg
);
1914 if (bg
>= 0 && TS_set_background
)
1916 p
= tparam (TS_set_background
, NULL
, 0, (int) bg
);
1924 /* Turn off appearances of face FACE_ID on tty frame F. */
1927 turn_off_face (f
, face_id
)
1931 struct face
*face
= FACE_FROM_ID (f
, face_id
);
1933 xassert (face
!= NULL
);
1935 if (TS_exit_attribute_mode
)
1937 /* Capability "me" will turn off appearance modes double-bright,
1938 half-bright, reverse-video, standout, underline. It may or
1939 may not turn off alt-char-mode. */
1940 if (face
->tty_bold_p
1942 || face
->tty_reverse_p
1943 || face
->tty_alt_charset_p
1944 || face
->tty_blinking_p
1945 || face
->tty_underline_p
)
1947 OUTPUT1_IF (TS_exit_attribute_mode
);
1948 if (strcmp (TS_exit_attribute_mode
, TS_end_standout_mode
) == 0)
1952 if (face
->tty_alt_charset_p
)
1953 OUTPUT_IF (TS_exit_alt_charset_mode
);
1957 /* If we don't have "me" we can only have those appearances
1958 that have exit sequences defined. */
1959 if (face
->tty_alt_charset_p
)
1960 OUTPUT_IF (TS_exit_alt_charset_mode
);
1962 if (face
->tty_underline_p
)
1963 OUTPUT_IF (TS_exit_underline_mode
);
1966 /* Switch back to default colors. */
1967 if (TN_max_colors
> 0
1968 && ((face
->foreground
!= FACE_TTY_DEFAULT_COLOR
1969 && face
->foreground
!= FACE_TTY_DEFAULT_FG_COLOR
)
1970 || (face
->background
!= FACE_TTY_DEFAULT_COLOR
1971 && face
->background
!= FACE_TTY_DEFAULT_BG_COLOR
)))
1972 OUTPUT1_IF (TS_orig_pair
);
1976 /* Return non-zero if the terminal is capable to display colors. */
1978 DEFUN ("tty-display-color-p", Ftty_display_color_p
, Stty_display_color_p
,
1980 doc
: /* Return non-nil if TTY can display colors on DISPLAY. */)
1982 Lisp_Object display
;
1984 return TN_max_colors
> 0 ? Qt
: Qnil
;
1987 /* Return the number of supported colors. */
1988 DEFUN ("tty-display-color-cells", Ftty_display_color_cells
,
1989 Stty_display_color_cells
, 0, 1, 0,
1990 doc
: /* Return the number of colors supported by TTY on DISPLAY. */)
1992 Lisp_Object display
;
1994 return make_number (TN_max_colors
);
1999 /* Save or restore the default color-related capabilities of this
2002 tty_default_color_capabilities (save
)
2006 *default_orig_pair
, *default_set_foreground
, *default_set_background
;
2007 static int default_max_colors
, default_max_pairs
, default_no_color_video
;
2011 if (default_orig_pair
)
2012 xfree (default_orig_pair
);
2013 default_orig_pair
= TS_orig_pair
? xstrdup (TS_orig_pair
) : NULL
;
2015 if (default_set_foreground
)
2016 xfree (default_set_foreground
);
2017 default_set_foreground
= TS_set_foreground
? xstrdup (TS_set_foreground
)
2020 if (default_set_background
)
2021 xfree (default_set_background
);
2022 default_set_background
= TS_set_background
? xstrdup (TS_set_background
)
2025 default_max_colors
= TN_max_colors
;
2026 default_max_pairs
= TN_max_pairs
;
2027 default_no_color_video
= TN_no_color_video
;
2031 TS_orig_pair
= default_orig_pair
;
2032 TS_set_foreground
= default_set_foreground
;
2033 TS_set_background
= default_set_background
;
2034 TN_max_colors
= default_max_colors
;
2035 TN_max_pairs
= default_max_pairs
;
2036 TN_no_color_video
= default_no_color_video
;
2040 /* Setup one of the standard tty color schemes according to MODE.
2041 MODE's value is generally the number of colors which we want to
2042 support; zero means set up for the default capabilities, the ones
2043 we saw at term_init time; -1 means turn off color support. */
2045 tty_setup_colors (mode
)
2050 case -1: /* no colors at all */
2053 TN_no_color_video
= 0;
2054 TS_set_foreground
= TS_set_background
= TS_orig_pair
= NULL
;
2056 case 0: /* default colors, if any */
2058 tty_default_color_capabilities (0);
2060 case 8: /* 8 standard ANSI colors */
2061 TS_orig_pair
= "\033[0m";
2063 TS_set_foreground
= "\033[3%p1%dm";
2064 TS_set_background
= "\033[4%p1%dm";
2066 TS_set_foreground
= "\033[3%dm";
2067 TS_set_background
= "\033[4%dm";
2071 TN_no_color_video
= 0;
2077 set_tty_color_mode (f
, val
)
2081 Lisp_Object color_mode_spec
, current_mode_spec
;
2082 Lisp_Object color_mode
, current_mode
;
2084 extern Lisp_Object Qtty_color_mode
;
2085 Lisp_Object tty_color_mode_alist
;
2087 tty_color_mode_alist
= Fintern_soft (build_string ("tty-color-mode-alist"),
2094 if (NILP (tty_color_mode_alist
))
2095 color_mode_spec
= Qnil
;
2097 color_mode_spec
= Fassq (val
, XSYMBOL (tty_color_mode_alist
)->value
);
2098 current_mode_spec
= assq_no_quit (Qtty_color_mode
, f
->param_alist
);
2100 if (CONSP (color_mode_spec
))
2101 color_mode
= XCDR (color_mode_spec
);
2105 if (CONSP (current_mode_spec
))
2106 current_mode
= XCDR (current_mode_spec
);
2108 current_mode
= Qnil
;
2109 if (NATNUMP (color_mode
))
2110 mode
= XINT (color_mode
);
2112 mode
= 0; /* meaning default */
2113 if (NATNUMP (current_mode
))
2114 old_mode
= XINT (current_mode
);
2118 if (mode
!= old_mode
)
2120 tty_setup_colors (mode
);
2121 /* This recomputes all the faces given the new color
2123 call0 (intern ("tty-set-up-initial-frame-faces"));
2128 #endif /* !WINDOWSNT */
2131 /***********************************************************************
2133 ***********************************************************************/
2136 term_init (terminal_type
)
2137 char *terminal_type
;
2140 char **address
= &area
;
2144 struct frame
*sf
= XFRAME (selected_frame
);
2147 initialize_w32_display ();
2151 area
= (char *) xmalloc (2044);
2156 FrameRows
= FRAME_HEIGHT (sf
);
2157 FrameCols
= FRAME_WIDTH (sf
);
2158 specified_window
= FRAME_HEIGHT (sf
);
2160 delete_in_insert_mode
= 1;
2163 scroll_region_ok
= 0;
2165 /* Seems to insert lines when it's not supposed to, messing
2166 up the display. In doing a trace, it didn't seem to be
2167 called much, so I don't think we're losing anything by
2170 line_ins_del_ok
= 0;
2171 char_ins_del_ok
= 1;
2175 FRAME_CAN_HAVE_SCROLL_BARS (sf
) = 0;
2176 FRAME_VERTICAL_SCROLL_BAR_TYPE (sf
) = vertical_scroll_bar_none
;
2177 TN_max_colors
= 16; /* Required to be non-zero for tty-display-color-p */
2180 #else /* not WINDOWSNT */
2184 status
= tgetent (buffer
, terminal_type
);
2188 fatal ("Cannot open terminfo database file");
2190 fatal ("Cannot open termcap database file");
2196 fatal ("Terminal type %s is not defined.\n\
2197 If that is not the actual type of terminal you have,\n\
2198 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2199 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2200 to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.",
2203 fatal ("Terminal type %s is not defined.\n\
2204 If that is not the actual type of terminal you have,\n\
2205 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2206 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2207 to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.",
2212 area
= (char *) xmalloc (2044);
2214 area
= (char *) xmalloc (strlen (buffer
));
2215 #endif /* not TERMINFO */
2219 TS_ins_line
= tgetstr ("al", address
);
2220 TS_ins_multi_lines
= tgetstr ("AL", address
);
2221 TS_bell
= tgetstr ("bl", address
);
2222 BackTab
= tgetstr ("bt", address
);
2223 TS_clr_to_bottom
= tgetstr ("cd", address
);
2224 TS_clr_line
= tgetstr ("ce", address
);
2225 TS_clr_frame
= tgetstr ("cl", address
);
2226 ColPosition
= NULL
; /* tgetstr ("ch", address); */
2227 AbsPosition
= tgetstr ("cm", address
);
2228 CR
= tgetstr ("cr", address
);
2229 TS_set_scroll_region
= tgetstr ("cs", address
);
2230 TS_set_scroll_region_1
= tgetstr ("cS", address
);
2231 RowPosition
= tgetstr ("cv", address
);
2232 TS_del_char
= tgetstr ("dc", address
);
2233 TS_del_multi_chars
= tgetstr ("DC", address
);
2234 TS_del_line
= tgetstr ("dl", address
);
2235 TS_del_multi_lines
= tgetstr ("DL", address
);
2236 TS_delete_mode
= tgetstr ("dm", address
);
2237 TS_end_delete_mode
= tgetstr ("ed", address
);
2238 TS_end_insert_mode
= tgetstr ("ei", address
);
2239 Home
= tgetstr ("ho", address
);
2240 TS_ins_char
= tgetstr ("ic", address
);
2241 TS_ins_multi_chars
= tgetstr ("IC", address
);
2242 TS_insert_mode
= tgetstr ("im", address
);
2243 TS_pad_inserted_char
= tgetstr ("ip", address
);
2244 TS_end_keypad_mode
= tgetstr ("ke", address
);
2245 TS_keypad_mode
= tgetstr ("ks", address
);
2246 LastLine
= tgetstr ("ll", address
);
2247 Right
= tgetstr ("nd", address
);
2248 Down
= tgetstr ("do", address
);
2250 Down
= tgetstr ("nl", address
); /* Obsolete name for "do" */
2252 /* VMS puts a carriage return before each linefeed,
2253 so it is not safe to use linefeeds. */
2254 if (Down
&& Down
[0] == '\n' && Down
[1] == '\0')
2257 if (tgetflag ("bs"))
2258 Left
= "\b"; /* can't possibly be longer! */
2259 else /* (Actually, "bs" is obsolete...) */
2260 Left
= tgetstr ("le", address
);
2262 Left
= tgetstr ("bc", address
); /* Obsolete name for "le" */
2263 TS_pad_char
= tgetstr ("pc", address
);
2264 TS_repeat
= tgetstr ("rp", address
);
2265 TS_end_standout_mode
= tgetstr ("se", address
);
2266 TS_fwd_scroll
= tgetstr ("sf", address
);
2267 TS_standout_mode
= tgetstr ("so", address
);
2268 TS_rev_scroll
= tgetstr ("sr", address
);
2269 Wcm
.cm_tab
= tgetstr ("ta", address
);
2270 TS_end_termcap_modes
= tgetstr ("te", address
);
2271 TS_termcap_modes
= tgetstr ("ti", address
);
2272 Up
= tgetstr ("up", address
);
2273 TS_visible_bell
= tgetstr ("vb", address
);
2274 TS_cursor_normal
= tgetstr ("ve", address
);
2275 TS_cursor_visible
= tgetstr ("vs", address
);
2276 TS_cursor_invisible
= tgetstr ("vi", address
);
2277 TS_set_window
= tgetstr ("wi", address
);
2279 TS_enter_underline_mode
= tgetstr ("us", address
);
2280 TS_exit_underline_mode
= tgetstr ("ue", address
);
2281 TS_enter_bold_mode
= tgetstr ("md", address
);
2282 TS_enter_dim_mode
= tgetstr ("mh", address
);
2283 TS_enter_blink_mode
= tgetstr ("mb", address
);
2284 TS_enter_reverse_mode
= tgetstr ("mr", address
);
2285 TS_enter_alt_charset_mode
= tgetstr ("as", address
);
2286 TS_exit_alt_charset_mode
= tgetstr ("ae", address
);
2287 TS_exit_attribute_mode
= tgetstr ("me", address
);
2289 MultiUp
= tgetstr ("UP", address
);
2290 MultiDown
= tgetstr ("DO", address
);
2291 MultiLeft
= tgetstr ("LE", address
);
2292 MultiRight
= tgetstr ("RI", address
);
2294 /* SVr4/ANSI color suppert. If "op" isn't available, don't support
2295 color because we can't switch back to the default foreground and
2297 TS_orig_pair
= tgetstr ("op", address
);
2300 TS_set_foreground
= tgetstr ("AF", address
);
2301 TS_set_background
= tgetstr ("AB", address
);
2302 if (!TS_set_foreground
)
2305 TS_set_foreground
= tgetstr ("Sf", address
);
2306 TS_set_background
= tgetstr ("Sb", address
);
2309 TN_max_colors
= tgetnum ("Co");
2310 TN_max_pairs
= tgetnum ("pa");
2312 TN_no_color_video
= tgetnum ("NC");
2313 if (TN_no_color_video
== -1)
2314 TN_no_color_video
= 0;
2317 tty_default_color_capabilities (1);
2319 MagicWrap
= tgetflag ("xn");
2320 /* Since we make MagicWrap terminals look like AutoWrap, we need to have
2321 the former flag imply the latter. */
2322 AutoWrap
= MagicWrap
|| tgetflag ("am");
2323 memory_below_frame
= tgetflag ("db");
2324 TF_hazeltine
= tgetflag ("hz");
2325 must_write_spaces
= tgetflag ("in");
2326 meta_key
= tgetflag ("km") || tgetflag ("MT");
2327 TF_insmode_motion
= tgetflag ("mi");
2328 TF_standout_motion
= tgetflag ("ms");
2329 TF_underscore
= tgetflag ("ul");
2330 TF_teleray
= tgetflag ("xt");
2332 term_get_fkeys (address
);
2334 /* Get frame size from system, or else from termcap. */
2337 get_frame_size (&width
, &height
);
2338 FRAME_WIDTH (sf
) = width
;
2339 FRAME_HEIGHT (sf
) = height
;
2342 if (FRAME_WIDTH (sf
) <= 0)
2343 SET_FRAME_WIDTH (sf
, tgetnum ("co"));
2345 /* Keep width and external_width consistent */
2346 SET_FRAME_WIDTH (sf
, FRAME_WIDTH (sf
));
2347 if (FRAME_HEIGHT (sf
) <= 0)
2348 FRAME_HEIGHT (sf
) = tgetnum ("li");
2350 if (FRAME_HEIGHT (sf
) < 3 || FRAME_WIDTH (sf
) < 3)
2351 fatal ("Screen size %dx%d is too small",
2352 FRAME_HEIGHT (sf
), FRAME_WIDTH (sf
));
2354 min_padding_speed
= tgetnum ("pb");
2355 TabWidth
= tgetnum ("tw");
2358 /* These capabilities commonly use ^J.
2359 I don't know why, but sending them on VMS does not work;
2360 it causes following spaces to be lost, sometimes.
2361 For now, the simplest fix is to avoid using these capabilities ever. */
2362 if (Down
&& Down
[0] == '\n')
2370 TS_fwd_scroll
= Down
;
2372 PC
= TS_pad_char
? *TS_pad_char
: 0;
2377 /* Turned off since /etc/termcap seems to have :ta= for most terminals
2378 and newer termcap doc does not seem to say there is a default.
2383 /* We don't support standout modes that use `magic cookies', so
2384 turn off any that do. */
2385 if (TS_standout_mode
&& tgetnum ("sg") >= 0)
2387 TS_standout_mode
= 0;
2388 TS_end_standout_mode
= 0;
2390 if (TS_enter_underline_mode
&& tgetnum ("ug") >= 0)
2392 TS_enter_underline_mode
= 0;
2393 TS_exit_underline_mode
= 0;
2396 /* If there's no standout mode, try to use underlining instead. */
2397 if (TS_standout_mode
== 0)
2399 TS_standout_mode
= TS_enter_underline_mode
;
2400 TS_end_standout_mode
= TS_exit_underline_mode
;
2403 /* If no `se' string, try using a `me' string instead.
2404 If that fails, we can't use standout mode at all. */
2405 if (TS_end_standout_mode
== 0)
2407 char *s
= tgetstr ("me", address
);
2409 TS_end_standout_mode
= s
;
2411 TS_standout_mode
= 0;
2417 /* We can't support standout mode, because it uses magic cookies. */
2418 TS_standout_mode
= 0;
2419 /* But that means we cannot rely on ^M to go to column zero! */
2421 /* LF can't be trusted either -- can alter hpos */
2422 /* if move at column 0 thru a line with TS_standout_mode */
2426 /* Special handling for certain terminal types known to need it */
2428 if (!strcmp (terminal_type
, "supdup"))
2430 memory_below_frame
= 1;
2431 Wcm
.cm_losewrap
= 1;
2433 if (!strncmp (terminal_type
, "c10", 3)
2434 || !strcmp (terminal_type
, "perq"))
2436 /* Supply a makeshift :wi string.
2437 This string is not valid in general since it works only
2438 for windows starting at the upper left corner;
2439 but that is all Emacs uses.
2441 This string works only if the frame is using
2442 the top of the video memory, because addressing is memory-relative.
2443 So first check the :ti string to see if that is true.
2445 It would be simpler if the :wi string could go in the termcap
2446 entry, but it can't because it is not fully valid.
2447 If it were in the termcap entry, it would confuse other programs. */
2450 p
= TS_termcap_modes
;
2451 while (*p
&& strcmp (p
, "\033v "))
2454 TS_set_window
= "\033v%C %C %C %C ";
2456 /* Termcap entry often fails to have :in: flag */
2457 must_write_spaces
= 1;
2458 /* :ti string typically fails to have \E^G! in it */
2459 /* This limits scope of insert-char to one line. */
2460 strcpy (area
, TS_termcap_modes
);
2461 strcat (area
, "\033\007!");
2462 TS_termcap_modes
= area
;
2463 area
+= strlen (area
) + 1;
2465 /* Change all %+ parameters to %C, to handle
2466 values above 96 correctly for the C100. */
2469 if (p
[0] == '%' && p
[1] == '+')
2475 FrameRows
= FRAME_HEIGHT (sf
);
2476 FrameCols
= FRAME_WIDTH (sf
);
2477 specified_window
= FRAME_HEIGHT (sf
);
2479 if (Wcm_init () == -1) /* can't do cursor motion */
2481 fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\
2482 It lacks the ability to position the cursor.\n\
2483 If that is not the actual type of terminal you have, use either the\n\
2484 DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\
2485 or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.",
2489 fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\
2490 It lacks the ability to position the cursor.\n\
2491 If that is not the actual type of terminal you have,\n\
2492 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2493 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2494 to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.",
2496 # else /* TERMCAP */
2497 fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\
2498 It lacks the ability to position the cursor.\n\
2499 If that is not the actual type of terminal you have,\n\
2500 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2501 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2502 to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.",
2504 # endif /* TERMINFO */
2506 if (FRAME_HEIGHT (sf
) <= 0
2507 || FRAME_WIDTH (sf
) <= 0)
2508 fatal ("The frame size has not been specified");
2510 delete_in_insert_mode
2511 = TS_delete_mode
&& TS_insert_mode
2512 && !strcmp (TS_delete_mode
, TS_insert_mode
);
2514 se_is_so
= (TS_standout_mode
2515 && TS_end_standout_mode
2516 && !strcmp (TS_standout_mode
, TS_end_standout_mode
));
2518 UseTabs
= tabs_safe_p () && TabWidth
== 8;
2522 && (TS_set_window
|| TS_set_scroll_region
|| TS_set_scroll_region_1
));
2524 line_ins_del_ok
= (((TS_ins_line
|| TS_ins_multi_lines
)
2525 && (TS_del_line
|| TS_del_multi_lines
))
2526 || (scroll_region_ok
&& TS_fwd_scroll
&& TS_rev_scroll
));
2528 char_ins_del_ok
= ((TS_ins_char
|| TS_insert_mode
2529 || TS_pad_inserted_char
|| TS_ins_multi_chars
)
2530 && (TS_del_char
|| TS_del_multi_chars
));
2532 fast_clear_end_of_line
= TS_clr_line
!= 0;
2535 if (read_socket_hook
) /* Baudrate is somewhat */
2536 /* meaningless in this case */
2539 FRAME_CAN_HAVE_SCROLL_BARS (sf
) = 0;
2540 FRAME_VERTICAL_SCROLL_BAR_TYPE (sf
) = vertical_scroll_bar_none
;
2541 #endif /* WINDOWSNT */
2546 fatal (str
, arg1
, arg2
)
2547 char *str
, *arg1
, *arg2
;
2549 fprintf (stderr
, "emacs: ");
2550 fprintf (stderr
, str
, arg1
, arg2
);
2551 fprintf (stderr
, "\n");
2559 DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo
,
2560 doc
: /* Non-nil means the system uses terminfo rather than termcap.
2561 This variable can be used by terminal emulator packages. */);
2563 system_uses_terminfo
= 1;
2565 system_uses_terminfo
= 0;
2568 DEFVAR_LISP ("ring-bell-function", &Vring_bell_function
,
2569 doc
: /* Non-nil means call this function to ring the bell.
2570 The function should accept no arguments. */);
2571 Vring_bell_function
= Qnil
;
2573 defsubr (&Stty_display_color_p
);
2574 defsubr (&Stty_display_color_cells
);