1 /* Terminal control module for terminals described by TERMCAP
2 Copyright (C) 1985, 86, 87, 93, 94, 95, 98, 2000, 2001, 2002
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_LINES (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_LINES (XFRAME (selected_frame)) \
82 #define OUTPUT1_IF(a) do { if (a) tputs (a, 1, cmputc); } while (0)
84 /* Display space properties */
86 extern Lisp_Object Qspace
, QCalign_to
, QCwidth
;
88 /* Function to use to ring the bell. */
90 Lisp_Object Vring_bell_function
;
92 /* Terminal characteristics that higher levels want to look at.
93 These are all extern'd in termchar.h */
95 int must_write_spaces
; /* Nonzero means spaces in the text
96 must actually be output; can't just skip
97 over some columns to leave them blank. */
98 int min_padding_speed
; /* Speed below which no padding necessary */
100 int line_ins_del_ok
; /* Terminal can insert and delete lines */
101 int char_ins_del_ok
; /* Terminal can insert and delete chars */
102 int scroll_region_ok
; /* Terminal supports setting the
104 int scroll_region_cost
; /* Cost of setting a scroll window,
105 measured in characters */
106 int memory_below_frame
; /* Terminal remembers lines
107 scrolled off bottom */
108 int fast_clear_end_of_line
; /* Terminal has a `ce' string */
110 /* Nonzero means no need to redraw the entire frame on resuming
111 a suspended Emacs. This is useful on terminals with multiple pages,
112 where one page is used for Emacs and another for all else. */
114 int no_redraw_on_reenter
;
116 /* Hook functions that you can set to snap out the functions in this file.
117 These are all extern'd in termhooks.h */
119 void (*cursor_to_hook
) P_ ((int, int));
120 void (*raw_cursor_to_hook
) P_ ((int, int));
121 void (*clear_to_end_hook
) P_ ((void));
122 void (*clear_frame_hook
) P_ ((void));
123 void (*clear_end_of_line_hook
) P_ ((int));
125 void (*ins_del_lines_hook
) P_ ((int, int));
127 void (*delete_glyphs_hook
) P_ ((int));
129 void (*ring_bell_hook
) P_ ((void));
131 void (*reset_terminal_modes_hook
) P_ ((void));
132 void (*set_terminal_modes_hook
) P_ ((void));
133 void (*update_begin_hook
) P_ ((struct frame
*));
134 void (*update_end_hook
) P_ ((struct frame
*));
135 void (*set_terminal_window_hook
) P_ ((int));
136 void (*insert_glyphs_hook
) P_ ((struct glyph
*, int));
137 void (*write_glyphs_hook
) P_ ((struct glyph
*, int));
138 void (*delete_glyphs_hook
) P_ ((int));
140 int (*read_socket_hook
) P_ ((int, int, struct input_event
*));
142 void (*frame_up_to_date_hook
) P_ ((struct frame
*));
144 /* Return the current position of the mouse.
146 Set *f to the frame the mouse is in, or zero if the mouse is in no
147 Emacs frame. If it is set to zero, all the other arguments are
150 If the motion started in a scroll bar, set *bar_window to the
151 scroll bar's window, *part to the part the mouse is currently over,
152 *x to the position of the mouse along the scroll bar, and *y to the
153 overall length of the scroll bar.
155 Otherwise, set *bar_window to Qnil, and *x and *y to the column and
156 row of the character cell the mouse is over.
158 Set *time to the time the mouse was at the returned position.
160 This should clear mouse_moved until the next motion
163 void (*mouse_position_hook
) P_ ((FRAME_PTR
*f
, int insist
,
164 Lisp_Object
*bar_window
,
165 enum scroll_bar_part
*part
,
168 unsigned long *time
));
170 /* When reading from a minibuffer in a different frame, Emacs wants
171 to shift the highlight from the selected frame to the mini-buffer's
172 frame; under X, this means it lies about where the focus is.
173 This hook tells the window system code to re-decide where to put
176 void (*frame_rehighlight_hook
) P_ ((FRAME_PTR f
));
178 /* If we're displaying frames using a window system that can stack
179 frames on top of each other, this hook allows you to bring a frame
180 to the front, or bury it behind all the other windows. If this
181 hook is zero, that means the device we're displaying on doesn't
182 support overlapping frames, so there's no need to raise or lower
185 If RAISE is non-zero, F is brought to the front, before all other
186 windows. If RAISE is zero, F is sent to the back, behind all other
189 void (*frame_raise_lower_hook
) P_ ((FRAME_PTR f
, int raise
));
191 /* Set the vertical scroll bar for WINDOW to have its upper left corner
192 at (TOP, LEFT), and be LENGTH rows high. Set its handle to
193 indicate that we are displaying PORTION characters out of a total
194 of WHOLE characters, starting at POSITION. If WINDOW doesn't yet
195 have a scroll bar, create one for it. */
197 void (*set_vertical_scroll_bar_hook
)
198 P_ ((struct window
*window
,
199 int portion
, int whole
, int position
));
202 /* The following three hooks are used when we're doing a thorough
203 redisplay of the frame. We don't explicitly know which scroll bars
204 are going to be deleted, because keeping track of when windows go
205 away is a real pain - can you say set-window-configuration?
206 Instead, we just assert at the beginning of redisplay that *all*
207 scroll bars are to be removed, and then save scroll bars from the
208 fiery pit when we actually redisplay their window. */
210 /* Arrange for all scroll bars on FRAME to be removed at the next call
211 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
212 `*redeem_scroll_bar_hook' is applied to its window before the judgment.
214 This should be applied to each frame each time its window tree is
215 redisplayed, even if it is not displaying scroll bars at the moment;
216 if the HAS_SCROLL_BARS flag has just been turned off, only calling
217 this and the judge_scroll_bars_hook will get rid of them.
219 If non-zero, this hook should be safe to apply to any frame,
220 whether or not it can support scroll bars, and whether or not it is
221 currently displaying them. */
223 void (*condemn_scroll_bars_hook
) P_ ((FRAME_PTR frame
));
225 /* Unmark WINDOW's scroll bar for deletion in this judgement cycle.
226 Note that it's okay to redeem a scroll bar that is not condemned. */
228 void (*redeem_scroll_bar_hook
) P_ ((struct window
*window
));
230 /* Remove all scroll bars on FRAME that haven't been saved since the
231 last call to `*condemn_scroll_bars_hook'.
233 This should be applied to each frame after each time its window
234 tree is redisplayed, even if it is not displaying scroll bars at the
235 moment; if the HAS_SCROLL_BARS flag has just been turned off, only
236 calling this and condemn_scroll_bars_hook will get rid of them.
238 If non-zero, this hook should be safe to apply to any frame,
239 whether or not it can support scroll bars, and whether or not it is
240 currently displaying them. */
242 void (*judge_scroll_bars_hook
) P_ ((FRAME_PTR FRAME
));
244 /* Strings, numbers and flags taken from the termcap entry. */
246 char *TS_ins_line
; /* "al" */
247 char *TS_ins_multi_lines
; /* "AL" (one parameter, # lines to insert) */
248 char *TS_bell
; /* "bl" */
249 char *TS_clr_to_bottom
; /* "cd" */
250 char *TS_clr_line
; /* "ce", clear to end of line */
251 char *TS_clr_frame
; /* "cl" */
252 char *TS_set_scroll_region
; /* "cs" (2 params, first line and last line) */
253 char *TS_set_scroll_region_1
; /* "cS" (4 params: total lines,
254 lines above scroll region, lines below it,
255 total lines again) */
256 char *TS_del_char
; /* "dc" */
257 char *TS_del_multi_chars
; /* "DC" (one parameter, # chars to delete) */
258 char *TS_del_line
; /* "dl" */
259 char *TS_del_multi_lines
; /* "DL" (one parameter, # lines to delete) */
260 char *TS_delete_mode
; /* "dm", enter character-delete mode */
261 char *TS_end_delete_mode
; /* "ed", leave character-delete mode */
262 char *TS_end_insert_mode
; /* "ei", leave character-insert mode */
263 char *TS_ins_char
; /* "ic" */
264 char *TS_ins_multi_chars
; /* "IC" (one parameter, # chars to insert) */
265 char *TS_insert_mode
; /* "im", enter character-insert mode */
266 char *TS_pad_inserted_char
; /* "ip". Just padding, no commands. */
267 char *TS_end_keypad_mode
; /* "ke" */
268 char *TS_keypad_mode
; /* "ks" */
269 char *TS_pad_char
; /* "pc", char to use as padding */
270 char *TS_repeat
; /* "rp" (2 params, # times to repeat
271 and character to be repeated) */
272 char *TS_end_standout_mode
; /* "se" */
273 char *TS_fwd_scroll
; /* "sf" */
274 char *TS_standout_mode
; /* "so" */
275 char *TS_rev_scroll
; /* "sr" */
276 char *TS_end_termcap_modes
; /* "te" */
277 char *TS_termcap_modes
; /* "ti" */
278 char *TS_visible_bell
; /* "vb" */
279 char *TS_cursor_normal
; /* "ve" */
280 char *TS_cursor_visible
; /* "vs" */
281 char *TS_cursor_invisible
; /* "vi" */
282 char *TS_set_window
; /* "wi" (4 params, start and end of window,
283 each as vpos and hpos) */
285 /* Value of the "NC" (no_color_video) capability, or 0 if not
288 static int TN_no_color_video
;
290 /* Meaning of bits in no_color_video. Each bit set means that the
291 corresponding attribute cannot be combined with colors. */
295 NC_STANDOUT
= 1 << 0,
296 NC_UNDERLINE
= 1 << 1,
303 NC_ALT_CHARSET
= 1 << 8
306 /* "md" -- turn on bold (extra bright mode). */
308 char *TS_enter_bold_mode
;
310 /* "mh" -- turn on half-bright mode. */
312 char *TS_enter_dim_mode
;
314 /* "mb" -- enter blinking mode. */
316 char *TS_enter_blink_mode
;
318 /* "mr" -- enter reverse video mode. */
320 char *TS_enter_reverse_mode
;
322 /* "us"/"ue" -- start/end underlining. */
324 char *TS_exit_underline_mode
, *TS_enter_underline_mode
;
326 /* "as"/"ae" -- start/end alternate character set. Not really
329 char *TS_enter_alt_charset_mode
, *TS_exit_alt_charset_mode
;
331 /* "me" -- switch appearances off. */
333 char *TS_exit_attribute_mode
;
335 /* "Co" -- number of colors. */
339 /* "pa" -- max. number of color pairs on screen. Not handled yet.
340 Could be a problem if not equal to TN_max_colors * TN_max_colors. */
344 /* "op" -- SVr4 set default pair to its original value. */
348 /* "AF"/"AB" or "Sf"/"Sb"-- set ANSI or SVr4 foreground/background color.
349 1 param, the color index. */
351 char *TS_set_foreground
, *TS_set_background
;
353 int TF_hazeltine
; /* termcap hz flag. */
354 int TF_insmode_motion
; /* termcap mi flag: can move while in insert mode. */
355 int TF_standout_motion
; /* termcap mi flag: can move while in standout mode. */
356 int TF_underscore
; /* termcap ul flag: _ underlines if over-struck on
357 non-blank position. Must clear before writing _. */
358 int TF_teleray
; /* termcap xt flag: many weird consequences.
361 static int RPov
; /* # chars to start a TS_repeat */
363 static int delete_in_insert_mode
; /* delete mode == insert mode */
365 static int se_is_so
; /* 1 if same string both enters and leaves
370 /* The largest frame width in any call to calculate_costs. */
374 /* The largest frame height in any call to calculate_costs. */
378 static int costs_set
; /* Nonzero if costs have been calculated. */
380 int insert_mode
; /* Nonzero when in insert mode. */
381 int standout_mode
; /* Nonzero when in standout mode. */
383 /* Size of window specified by higher levels.
384 This is the number of lines, from the top of frame downwards,
385 which can participate in insert-line/delete-line operations.
387 Effectively it excludes the bottom frame_lines - specified_window_size
388 lines from those operations. */
390 int specified_window
;
392 /* Frame currently being redisplayed; 0 if not currently redisplaying.
393 (Direct output does not count). */
395 FRAME_PTR updating_frame
;
397 /* Provided for lisp packages. */
399 static int system_uses_terminfo
;
401 /* Flag used in tty_show/hide_cursor. */
403 static int tty_cursor_hidden
;
407 extern char *tgetstr ();
411 /* We aren't X windows, but we aren't termcap either. This makes me
412 uncertain as to what value to use for frame.output_method. For
413 this file, we'll define FRAME_TERMCAP_P to be zero so that our
414 output hooks get called instead of the termcap functions. Probably
415 the best long-term solution is to define an output_windows_nt... */
417 #undef FRAME_TERMCAP_P
418 #define FRAME_TERMCAP_P(_f_) 0
419 #endif /* WINDOWSNT */
424 if (!NILP (Vring_bell_function
))
426 Lisp_Object function
;
428 /* Temporarily set the global variable to nil
429 so that if we get an error, it stays nil
430 and we don't call it over and over.
432 We don't specbind it, because that would carefully
433 restore the bad value if there's an error
434 and make the loop of errors happen anyway. */
436 function
= Vring_bell_function
;
437 Vring_bell_function
= Qnil
;
441 Vring_bell_function
= function
;
443 else if (!FRAME_TERMCAP_P (XFRAME (selected_frame
)))
444 (*ring_bell_hook
) ();
446 OUTPUT (TS_visible_bell
&& visible_bell
? TS_visible_bell
: TS_bell
);
450 set_terminal_modes ()
452 if (FRAME_TERMCAP_P (XFRAME (selected_frame
)))
454 OUTPUT_IF (TS_termcap_modes
);
455 OUTPUT_IF (TS_cursor_visible
);
456 OUTPUT_IF (TS_keypad_mode
);
460 (*set_terminal_modes_hook
) ();
464 reset_terminal_modes ()
466 if (FRAME_TERMCAP_P (XFRAME (selected_frame
)))
468 turn_off_highlight ();
470 OUTPUT_IF (TS_end_keypad_mode
);
471 OUTPUT_IF (TS_cursor_normal
);
472 OUTPUT_IF (TS_end_termcap_modes
);
473 OUTPUT_IF (TS_orig_pair
);
474 /* Output raw CR so kernel can track the cursor hpos. */
477 else if (reset_terminal_modes_hook
)
478 (*reset_terminal_modes_hook
) ();
486 if (!FRAME_TERMCAP_P (f
))
487 update_begin_hook (f
);
494 if (FRAME_TERMCAP_P (f
))
496 if (!XWINDOW (selected_window
)->cursor_off_p
)
499 background_highlight ();
504 updating_frame
= NULL
;
508 set_terminal_window (size
)
511 if (FRAME_TERMCAP_P (updating_frame
))
513 specified_window
= size
? size
: FRAME_LINES (updating_frame
);
514 if (scroll_region_ok
)
515 set_scroll_region (0, specified_window
);
518 set_terminal_window_hook (size
);
522 set_scroll_region (start
, stop
)
526 struct frame
*sf
= XFRAME (selected_frame
);
528 if (TS_set_scroll_region
)
529 buf
= tparam (TS_set_scroll_region
, 0, 0, start
, stop
- 1);
530 else if (TS_set_scroll_region_1
)
531 buf
= tparam (TS_set_scroll_region_1
, 0, 0,
532 FRAME_LINES (sf
), start
,
533 FRAME_LINES (sf
) - stop
,
536 buf
= tparam (TS_set_window
, 0, 0, start
, 0, stop
, FRAME_COLS (sf
));
548 OUTPUT (TS_insert_mode
);
556 OUTPUT (TS_end_insert_mode
);
560 /* Handle highlighting. */
563 turn_off_highlight ()
566 OUTPUT_IF (TS_end_standout_mode
);
574 OUTPUT_IF (TS_standout_mode
);
582 turn_off_highlight ();
584 turn_on_highlight ();
588 /* Make cursor invisible. */
593 if (tty_cursor_hidden
== 0)
595 tty_cursor_hidden
= 1;
596 OUTPUT_IF (TS_cursor_invisible
);
601 /* Ensure that cursor is visible. */
606 if (tty_cursor_hidden
)
608 tty_cursor_hidden
= 0;
609 OUTPUT_IF (TS_cursor_normal
);
610 OUTPUT_IF (TS_cursor_visible
);
615 /* Set standout mode to the state it should be in for
616 empty space inside windows. What this is,
617 depends on the user option inverse-video. */
620 background_highlight ()
623 turn_on_highlight ();
625 turn_off_highlight ();
628 /* Set standout mode to the mode specified for the text to be output. */
631 highlight_if_desired ()
634 turn_on_highlight ();
636 turn_off_highlight ();
640 /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are
641 frame-relative coordinates. */
644 cursor_to (vpos
, hpos
)
647 struct frame
*f
= updating_frame
? updating_frame
: XFRAME (selected_frame
);
649 if (! FRAME_TERMCAP_P (f
) && cursor_to_hook
)
651 (*cursor_to_hook
) (vpos
, hpos
);
655 /* Detect the case where we are called from reset_sys_modes
656 and the costs have never been calculated. Do nothing. */
660 if (curY
== vpos
&& curX
== hpos
)
662 if (!TF_standout_motion
)
663 background_highlight ();
664 if (!TF_insmode_motion
)
669 /* Similar but don't take any account of the wasted characters. */
672 raw_cursor_to (row
, col
)
675 struct frame
*f
= updating_frame
? updating_frame
: XFRAME (selected_frame
);
676 if (! FRAME_TERMCAP_P (f
))
678 (*raw_cursor_to_hook
) (row
, col
);
681 if (curY
== row
&& curX
== col
)
683 if (!TF_standout_motion
)
684 background_highlight ();
685 if (!TF_insmode_motion
)
690 /* Erase operations */
692 /* clear from cursor to end of frame */
698 if (clear_to_end_hook
&& ! FRAME_TERMCAP_P (updating_frame
))
700 (*clear_to_end_hook
) ();
703 if (TS_clr_to_bottom
)
705 background_highlight ();
706 OUTPUT (TS_clr_to_bottom
);
710 for (i
= curY
; i
< FRAME_LINES (XFRAME (selected_frame
)); i
++)
713 clear_end_of_line (FRAME_COLS (XFRAME (selected_frame
)));
718 /* Clear entire frame */
723 struct frame
*sf
= XFRAME (selected_frame
);
726 && ! FRAME_TERMCAP_P ((updating_frame
? updating_frame
: sf
)))
728 (*clear_frame_hook
) ();
733 background_highlight ();
734 OUTPUT (TS_clr_frame
);
744 /* Clear from cursor to end of line.
745 Assume that the line is already clear starting at column first_unused_hpos.
747 Note that the cursor may be moved, on terminals lacking a `ce' string. */
750 clear_end_of_line (first_unused_hpos
)
751 int first_unused_hpos
;
755 if (clear_end_of_line_hook
756 && ! FRAME_TERMCAP_P ((updating_frame
758 : XFRAME (selected_frame
))))
760 (*clear_end_of_line_hook
) (first_unused_hpos
);
764 /* Detect the case where we are called from reset_sys_modes
765 and the costs have never been calculated. Do nothing. */
769 if (curX
>= first_unused_hpos
)
771 background_highlight ();
774 OUTPUT1 (TS_clr_line
);
777 { /* have to do it the hard way */
778 struct frame
*sf
= XFRAME (selected_frame
);
781 /* Do not write in last row last col with Auto-wrap on. */
782 if (AutoWrap
&& curY
== FRAME_LINES (sf
) - 1
783 && first_unused_hpos
== FRAME_COLS (sf
))
786 for (i
= curX
; i
< first_unused_hpos
; i
++)
789 fputc (' ', termscript
);
792 cmplus (first_unused_hpos
- curX
);
796 /* Buffer to store the result of terminal codes. It is initialized in
797 term_init and, if necessary, enlarged in encode_terminal_code. */
798 unsigned char *terminal_encode_buffer
;
799 /* Size of terminal_encode_buffer. */
800 static int terminal_encode_buf_size
;
802 /* Encode SRC_LEN glyphs starting at SRC to terminal output codes and
803 store them in terminal_encode_buffer.
805 We store the number of glyphs actually converted in *CONSUMED. The
806 return value is the number of bytes stored in
807 terminal_encode_buffer.
809 This function will stop before encoding all glyphs in these two
812 (1) If the first glyph doesn't have a string entry in Vglyph_table,
813 it stops at encountering a glyph that has a string entry in
816 (2) If the first has a string entry in Vglyph_table, it stops after
817 encoding that string.
821 encode_terminal_code (src
, src_len
, consumed
)
826 struct glyph
*src_start
= src
, *src_end
= src
+ src_len
;
830 unsigned char *workbuf
, *buf
;
832 register int tlen
= GLYPH_TABLE_LENGTH
;
833 register Lisp_Object
*tbase
= GLYPH_TABLE_BASE
;
834 struct coding_system
*coding
;
835 Lisp_Object attrs
, charset_list
;
838 /* GLYPH-TABLE is not supported anymore in xdisp.c. */
842 /* If terminal_coding does any conversion, use it, otherwise use
843 safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
844 because it always return 1 if the member src_multibyte is 1. */
845 coding
= (terminal_coding
.common_flags
& CODING_REQUIRE_ENCODING_MASK
847 : &safe_terminal_coding
);
848 coding
->destination
= terminal_encode_buffer
;
849 coding
->dst_bytes
= terminal_encode_buf_size
;
850 coding
->mode
|= CODING_MODE_LAST_BLOCK
;
851 attrs
= CODING_ID_ATTRS (coding
->id
);
852 charset_list
= CODING_ATTR_CHARSET_LIST (attrs
);
854 workbuf
= buf
= alloca (MAX_MULTIBYTE_LENGTH
* src_len
);
855 for (nchars
= 0; src
< src_end
; src
++)
857 /* We must skip glyphs to be padded for a wide character. */
858 if (! CHAR_GLYPH_PADDING_P (*src
))
860 g
= GLYPH_FROM_CHAR_GLYPH (src
[0]);
863 if (g
< 0 || g
>= tlen
)
867 /* This glyph has an entry in Vglyph_table,
868 so process any alias before testing for simpleness. */
869 GLYPH_FOLLOW_ALIASES (tbase
, tlen
, g
);
871 if (GLYPH_SIMPLE_P (tbase
, tlen
, g
))
872 /* We set the multi-byte form of a character in G
873 (that should be an ASCII character) at WORKBUF. */
874 c
= FAST_GLYPH_CHAR (g
);
876 /* We have a string in Vglyph_table. */
882 if (! char_charset (c
, charset_list
, NULL
))
884 /* C is not encodable. */
887 for (i
= CHAR_WIDTH (c
) - 1; i
>= 0; i
--, nchars
++)
892 /* Store the multibyte form of C at BUF. */
893 buf
+= CHAR_STRING (c
, buf
);
901 encode_coding_object (coding
, string
, 0, 0, SCHARS (string
),
902 SBYTES (string
), Qnil
);
912 coding
->source
= workbuf
;
913 encode_coding_object (coding
, Qnil
, 0, 0, nchars
,
914 buf
- workbuf
, Qnil
);
916 /* coding->destination may have been reallocated. */
917 terminal_encode_buffer
= coding
->destination
;
918 if (terminal_encode_buf_size
< coding
->dst_bytes
)
919 terminal_encode_buf_size
= coding
->dst_bytes
;
921 *consumed
= src
- src_start
;
922 return (coding
->produced
);
927 write_glyphs (string
, len
)
928 register struct glyph
*string
;
931 int produced
, consumed
;
932 struct frame
*sf
= XFRAME (selected_frame
);
933 struct frame
*f
= updating_frame
? updating_frame
: sf
;
935 if (write_glyphs_hook
936 && ! FRAME_TERMCAP_P (f
))
938 (*write_glyphs_hook
) (string
, len
);
945 /* Don't dare write in last column of bottom line, if Auto-Wrap,
946 since that would scroll the whole frame on some terminals. */
949 && curY
+ 1 == FRAME_LINES (sf
)
950 && (curX
+ len
) == FRAME_COLS (sf
))
957 /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
959 terminal_coding
.mode
&= ~CODING_MODE_LAST_BLOCK
;
963 /* Identify a run of glyphs with the same face. */
964 int face_id
= string
->face_id
;
967 for (n
= 1; n
< len
; ++n
)
968 if (string
[n
].face_id
!= face_id
)
971 /* Turn appearance modes of the face of the run on. */
972 highlight_if_desired ();
973 turn_on_face (f
, face_id
);
977 produced
= encode_terminal_code (string
, n
, &consumed
);
980 fwrite (terminal_encode_buffer
, 1, produced
, stdout
);
984 fwrite (terminal_encode_buffer
, 1, produced
, termscript
);
991 /* Turn appearance modes off. */
992 turn_off_face (f
, face_id
);
993 turn_off_highlight ();
999 /* If start is zero, insert blanks instead of a string at start */
1002 insert_glyphs (start
, len
)
1003 register struct glyph
*start
;
1007 struct glyph
*glyph
= NULL
;
1008 struct frame
*f
, *sf
;
1013 if (insert_glyphs_hook
)
1015 (*insert_glyphs_hook
) (start
, len
);
1019 sf
= XFRAME (selected_frame
);
1020 f
= updating_frame
? updating_frame
: sf
;
1022 if (TS_ins_multi_chars
)
1024 buf
= tparam (TS_ins_multi_chars
, 0, 0, len
);
1028 write_glyphs (start
, len
);
1034 /* The bit CODING_MODE_LAST_BLOCK should be set to 1 only at the tail. */
1035 terminal_coding
.mode
&= ~CODING_MODE_LAST_BLOCK
;
1038 int produced
, consumed
;
1040 OUTPUT1_IF (TS_ins_char
);
1043 terminal_encode_buffer
[0] = SPACEGLYPH
;
1048 highlight_if_desired ();
1049 turn_on_face (f
, start
->face_id
);
1052 /* We must open sufficient space for a character which
1053 occupies more than one column. */
1054 while (len
&& CHAR_GLYPH_PADDING_P (*start
))
1056 OUTPUT1_IF (TS_ins_char
);
1059 produced
= encode_terminal_code (glyph
, 1, &consumed
);
1064 fwrite (terminal_encode_buffer
, 1, produced
, stdout
);
1065 if (ferror (stdout
))
1068 fwrite (terminal_encode_buffer
, 1, produced
, termscript
);
1071 OUTPUT1_IF (TS_pad_inserted_char
);
1074 turn_off_face (f
, glyph
->face_id
);
1075 turn_off_highlight ();
1089 if (delete_glyphs_hook
&& ! FRAME_TERMCAP_P (updating_frame
))
1091 (*delete_glyphs_hook
) (n
);
1095 if (delete_in_insert_mode
)
1102 OUTPUT_IF (TS_delete_mode
);
1105 if (TS_del_multi_chars
)
1107 buf
= tparam (TS_del_multi_chars
, 0, 0, n
);
1112 for (i
= 0; i
< n
; i
++)
1113 OUTPUT1 (TS_del_char
);
1114 if (!delete_in_insert_mode
)
1115 OUTPUT_IF (TS_end_delete_mode
);
1118 /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */
1121 ins_del_lines (vpos
, n
)
1124 char *multi
= n
> 0 ? TS_ins_multi_lines
: TS_del_multi_lines
;
1125 char *single
= n
> 0 ? TS_ins_line
: TS_del_line
;
1126 char *scroll
= n
> 0 ? TS_rev_scroll
: TS_fwd_scroll
;
1129 register int i
= n
> 0 ? n
: -n
;
1132 if (ins_del_lines_hook
&& ! FRAME_TERMCAP_P (updating_frame
))
1134 (*ins_del_lines_hook
) (vpos
, n
);
1138 sf
= XFRAME (selected_frame
);
1140 /* If the lines below the insertion are being pushed
1141 into the end of the window, this is the same as clearing;
1142 and we know the lines are already clear, since the matching
1143 deletion has already been done. So can ignore this. */
1144 /* If the lines below the deletion are blank lines coming
1145 out of the end of the window, don't bother,
1146 as there will be a matching inslines later that will flush them. */
1147 if (scroll_region_ok
&& vpos
+ i
>= specified_window
)
1149 if (!memory_below_frame
&& vpos
+ i
>= FRAME_LINES (sf
))
1154 raw_cursor_to (vpos
, 0);
1155 background_highlight ();
1156 buf
= tparam (multi
, 0, 0, i
);
1162 raw_cursor_to (vpos
, 0);
1163 background_highlight ();
1171 set_scroll_region (vpos
, specified_window
);
1173 raw_cursor_to (specified_window
- 1, 0);
1175 raw_cursor_to (vpos
, 0);
1176 background_highlight ();
1178 OUTPUTL (scroll
, specified_window
- vpos
);
1179 set_scroll_region (0, specified_window
);
1182 if (!scroll_region_ok
&& memory_below_frame
&& n
< 0)
1184 cursor_to (FRAME_LINES (sf
) + n
, 0);
1189 /* Compute cost of sending "str", in characters,
1190 not counting any line-dependent padding. */
1198 tputs (str
, 0, evalcost
);
1202 /* Compute cost of sending "str", in characters,
1203 counting any line-dependent padding at one line. */
1206 string_cost_one_line (str
)
1211 tputs (str
, 1, evalcost
);
1215 /* Compute per line amount of line-dependent padding,
1216 in tenths of characters. */
1224 tputs (str
, 0, evalcost
);
1227 tputs (str
, 10, evalcost
);
1232 /* char_ins_del_cost[n] is cost of inserting N characters.
1233 char_ins_del_cost[-n] is cost of deleting N characters.
1234 The length of this vector is based on max_frame_cols. */
1236 int *char_ins_del_vector
;
1238 #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_COLS ((f))])
1243 calculate_ins_del_char_costs (frame
)
1246 int ins_startup_cost
, del_startup_cost
;
1247 int ins_cost_per_char
, del_cost_per_char
;
1251 if (TS_ins_multi_chars
)
1253 ins_cost_per_char
= 0;
1254 ins_startup_cost
= string_cost_one_line (TS_ins_multi_chars
);
1256 else if (TS_ins_char
|| TS_pad_inserted_char
1257 || (TS_insert_mode
&& TS_end_insert_mode
))
1259 ins_startup_cost
= (30 * (string_cost (TS_insert_mode
)
1260 + string_cost (TS_end_insert_mode
))) / 100;
1261 ins_cost_per_char
= (string_cost_one_line (TS_ins_char
)
1262 + string_cost_one_line (TS_pad_inserted_char
));
1266 ins_startup_cost
= 9999;
1267 ins_cost_per_char
= 0;
1270 if (TS_del_multi_chars
)
1272 del_cost_per_char
= 0;
1273 del_startup_cost
= string_cost_one_line (TS_del_multi_chars
);
1275 else if (TS_del_char
)
1277 del_startup_cost
= (string_cost (TS_delete_mode
)
1278 + string_cost (TS_end_delete_mode
));
1279 if (delete_in_insert_mode
)
1280 del_startup_cost
/= 2;
1281 del_cost_per_char
= string_cost_one_line (TS_del_char
);
1285 del_startup_cost
= 9999;
1286 del_cost_per_char
= 0;
1289 /* Delete costs are at negative offsets */
1290 p
= &char_ins_del_cost (frame
)[0];
1291 for (i
= FRAME_COLS (frame
); --i
>= 0;)
1292 *--p
= (del_startup_cost
+= del_cost_per_char
);
1294 /* Doing nothing is free */
1295 p
= &char_ins_del_cost (frame
)[0];
1298 /* Insert costs are at positive offsets */
1299 for (i
= FRAME_COLS (frame
); --i
>= 0;)
1300 *p
++ = (ins_startup_cost
+= ins_cost_per_char
);
1304 calculate_costs (frame
)
1307 register char *f
= (TS_set_scroll_region
1308 ? TS_set_scroll_region
1309 : TS_set_scroll_region_1
);
1311 FRAME_COST_BAUD_RATE (frame
) = baud_rate
;
1313 scroll_region_cost
= string_cost (f
);
1315 /* These variables are only used for terminal stuff. They are allocated
1316 once for the terminal frame of X-windows emacs, but not used afterwards.
1318 char_ins_del_vector (i.e., char_ins_del_cost) isn't used because
1319 X turns off char_ins_del_ok. */
1321 max_frame_lines
= max (max_frame_lines
, FRAME_LINES (frame
));
1322 max_frame_cols
= max (max_frame_cols
, FRAME_COLS (frame
));
1326 if (char_ins_del_vector
!= 0)
1328 = (int *) xrealloc (char_ins_del_vector
,
1330 + 2 * max_frame_cols
* sizeof (int)));
1333 = (int *) xmalloc (sizeof (int)
1334 + 2 * max_frame_cols
* sizeof (int));
1336 bzero (char_ins_del_vector
, (sizeof (int)
1337 + 2 * max_frame_cols
* sizeof (int)));
1339 if (f
&& (!TS_ins_line
&& !TS_del_line
))
1340 do_line_insertion_deletion_costs (frame
,
1341 TS_rev_scroll
, TS_ins_multi_lines
,
1342 TS_fwd_scroll
, TS_del_multi_lines
,
1345 do_line_insertion_deletion_costs (frame
,
1346 TS_ins_line
, TS_ins_multi_lines
,
1347 TS_del_line
, TS_del_multi_lines
,
1350 calculate_ins_del_char_costs (frame
);
1352 /* Don't use TS_repeat if its padding is worse than sending the chars */
1353 if (TS_repeat
&& per_line_cost (TS_repeat
) * baud_rate
< 9000)
1354 RPov
= string_cost (TS_repeat
);
1356 RPov
= FRAME_COLS (frame
) * 2;
1358 cmcostinit (); /* set up cursor motion costs */
1365 /* Termcap capability names that correspond directly to X keysyms.
1366 Some of these (marked "terminfo") aren't supplied by old-style
1367 (Berkeley) termcap entries. They're listed in X keysym order;
1368 except we put the keypad keys first, so that if they clash with
1369 other keys (as on the IBM PC keyboard) they get overridden.
1372 static struct fkey_table keys
[] =
1374 {"kh", "home"}, /* termcap */
1375 {"kl", "left"}, /* termcap */
1376 {"ku", "up"}, /* termcap */
1377 {"kr", "right"}, /* termcap */
1378 {"kd", "down"}, /* termcap */
1379 {"%8", "prior"}, /* terminfo */
1380 {"%5", "next"}, /* terminfo */
1381 {"@7", "end"}, /* terminfo */
1382 {"@1", "begin"}, /* terminfo */
1383 {"*6", "select"}, /* terminfo */
1384 {"%9", "print"}, /* terminfo */
1385 {"@4", "execute"}, /* terminfo --- actually the `command' key */
1387 * "insert" --- see below
1389 {"&8", "undo"}, /* terminfo */
1390 {"%0", "redo"}, /* terminfo */
1391 {"%7", "menu"}, /* terminfo --- actually the `options' key */
1392 {"@0", "find"}, /* terminfo */
1393 {"@2", "cancel"}, /* terminfo */
1394 {"%1", "help"}, /* terminfo */
1396 * "break" goes here, but can't be reliably intercepted with termcap
1398 {"&4", "reset"}, /* terminfo --- actually `restart' */
1400 * "system" and "user" --- no termcaps
1402 {"kE", "clearline"}, /* terminfo */
1403 {"kA", "insertline"}, /* terminfo */
1404 {"kL", "deleteline"}, /* terminfo */
1405 {"kI", "insertchar"}, /* terminfo */
1406 {"kD", "deletechar"}, /* terminfo */
1407 {"kB", "backtab"}, /* terminfo */
1409 * "kp_backtab", "kp-space", "kp-tab" --- no termcaps
1411 {"@8", "kp-enter"}, /* terminfo */
1413 * "kp-f1", "kp-f2", "kp-f3" "kp-f4",
1414 * "kp-multiply", "kp-add", "kp-separator",
1415 * "kp-subtract", "kp-decimal", "kp-divide", "kp-0";
1416 * --- no termcaps for any of these.
1418 {"K4", "kp-1"}, /* terminfo */
1420 * "kp-2" --- no termcap
1422 {"K5", "kp-3"}, /* terminfo */
1424 * "kp-4" --- no termcap
1426 {"K2", "kp-5"}, /* terminfo */
1428 * "kp-6" --- no termcap
1430 {"K1", "kp-7"}, /* terminfo */
1432 * "kp-8" --- no termcap
1434 {"K3", "kp-9"}, /* terminfo */
1436 * "kp-equal" --- no termcap
1449 static char **term_get_fkeys_arg
;
1450 static Lisp_Object
term_get_fkeys_1 ();
1452 /* Find the escape codes sent by the function keys for Vfunction_key_map.
1453 This function scans the termcap function key sequence entries, and
1454 adds entries to Vfunction_key_map for each function key it finds. */
1457 term_get_fkeys (address
)
1460 /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp
1461 errors during the call. The only errors should be from Fdefine_key
1462 when given a key sequence containing an invalid prefix key. If the
1463 termcap defines function keys which use a prefix that is already bound
1464 to a command by the default bindings, we should silently ignore that
1465 function key specification, rather than giving the user an error and
1466 refusing to run at all on such a terminal. */
1468 extern Lisp_Object
Fidentity ();
1469 term_get_fkeys_arg
= address
;
1470 internal_condition_case (term_get_fkeys_1
, Qerror
, Fidentity
);
1478 char **address
= term_get_fkeys_arg
;
1480 /* This can happen if CANNOT_DUMP or with strange options. */
1482 Vfunction_key_map
= Fmake_sparse_keymap (Qnil
);
1484 for (i
= 0; i
< (sizeof (keys
)/sizeof (keys
[0])); i
++)
1486 char *sequence
= tgetstr (keys
[i
].cap
, address
);
1488 Fdefine_key (Vfunction_key_map
, build_string (sequence
),
1489 Fmake_vector (make_number (1),
1490 intern (keys
[i
].name
)));
1493 /* The uses of the "k0" capability are inconsistent; sometimes it
1494 describes F10, whereas othertimes it describes F0 and "k;" describes F10.
1495 We will attempt to politely accommodate both systems by testing for
1496 "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10.
1499 char *k_semi
= tgetstr ("k;", address
);
1500 char *k0
= tgetstr ("k0", address
);
1501 char *k0_name
= "f10";
1506 /* Define f0 first, so that f10 takes precedence in case the
1507 key sequences happens to be the same. */
1508 Fdefine_key (Vfunction_key_map
, build_string (k0
),
1509 Fmake_vector (make_number (1), intern ("f0")));
1510 Fdefine_key (Vfunction_key_map
, build_string (k_semi
),
1511 Fmake_vector (make_number (1), intern ("f10")));
1514 Fdefine_key (Vfunction_key_map
, build_string (k0
),
1515 Fmake_vector (make_number (1), intern (k0_name
)));
1518 /* Set up cookies for numbered function keys above f10. */
1520 char fcap
[3], fkey
[4];
1522 fcap
[0] = 'F'; fcap
[2] = '\0';
1523 for (i
= 11; i
< 64; i
++)
1526 fcap
[1] = '1' + i
- 11;
1528 fcap
[1] = 'A' + i
- 20;
1530 fcap
[1] = 'a' + i
- 46;
1533 char *sequence
= tgetstr (fcap
, address
);
1536 sprintf (fkey
, "f%d", i
);
1537 Fdefine_key (Vfunction_key_map
, build_string (sequence
),
1538 Fmake_vector (make_number (1),
1546 * Various mappings to try and get a better fit.
1549 #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \
1550 if (!tgetstr (cap1, address)) \
1552 char *sequence = tgetstr (cap2, address); \
1554 Fdefine_key (Vfunction_key_map, build_string (sequence), \
1555 Fmake_vector (make_number (1), \
1559 /* if there's no key_next keycap, map key_npage to `next' keysym */
1560 CONDITIONAL_REASSIGN ("%5", "kN", "next");
1561 /* if there's no key_prev keycap, map key_ppage to `previous' keysym */
1562 CONDITIONAL_REASSIGN ("%8", "kP", "prior");
1563 /* if there's no key_dc keycap, map key_ic to `insert' keysym */
1564 CONDITIONAL_REASSIGN ("kD", "kI", "insert");
1565 /* if there's no key_end keycap, map key_ll to 'end' keysym */
1566 CONDITIONAL_REASSIGN ("@7", "kH", "end");
1568 /* IBM has their own non-standard dialect of terminfo.
1569 If the standard name isn't found, try the IBM name. */
1570 CONDITIONAL_REASSIGN ("kB", "KO", "backtab");
1571 CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */
1572 CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */
1573 CONDITIONAL_REASSIGN ("%7", "ki", "menu");
1574 CONDITIONAL_REASSIGN ("@7", "kw", "end");
1575 CONDITIONAL_REASSIGN ("F1", "k<", "f11");
1576 CONDITIONAL_REASSIGN ("F2", "k>", "f12");
1577 CONDITIONAL_REASSIGN ("%1", "kq", "help");
1578 CONDITIONAL_REASSIGN ("*6", "kU", "select");
1579 #undef CONDITIONAL_REASSIGN
1586 /***********************************************************************
1587 Character Display Information
1588 ***********************************************************************/
1590 static void append_glyph
P_ ((struct it
*));
1591 static void produce_stretch_glyph
P_ ((struct it
*));
1594 /* Append glyphs to IT's glyph_row. Called from produce_glyphs for
1595 terminal frames if IT->glyph_row != NULL. IT->c is the character
1596 for which to produce glyphs; IT->face_id contains the character's
1597 face. Padding glyphs are appended if IT->c has a IT->pixel_width >
1604 struct glyph
*glyph
, *end
;
1607 xassert (it
->glyph_row
);
1608 glyph
= (it
->glyph_row
->glyphs
[it
->area
]
1609 + it
->glyph_row
->used
[it
->area
]);
1610 end
= it
->glyph_row
->glyphs
[1 + it
->area
];
1613 i
< it
->pixel_width
&& glyph
< end
;
1616 glyph
->type
= CHAR_GLYPH
;
1617 glyph
->pixel_width
= 1;
1618 glyph
->u
.ch
= it
->c
;
1619 glyph
->face_id
= it
->face_id
;
1620 glyph
->padding_p
= i
> 0;
1621 glyph
->charpos
= CHARPOS (it
->position
);
1622 glyph
->object
= it
->object
;
1624 ++it
->glyph_row
->used
[it
->area
];
1630 /* Produce glyphs for the display element described by IT. *IT
1631 specifies what we want to produce a glyph for (character, image, ...),
1632 and where in the glyph matrix we currently are (glyph row and hpos).
1633 produce_glyphs fills in output fields of *IT with information such as the
1634 pixel width and height of a character, and maybe output actual glyphs at
1635 the same time if IT->glyph_row is non-null. See the explanation of
1636 struct display_iterator in dispextern.h for an overview.
1638 produce_glyphs also stores the result of glyph width, ascent
1639 etc. computations in *IT.
1641 IT->glyph_row may be null, in which case produce_glyphs does not
1642 actually fill in the glyphs. This is used in the move_* functions
1643 in xdisp.c for text width and height computations.
1645 Callers usually don't call produce_glyphs directly;
1646 instead they use the macro PRODUCE_GLYPHS. */
1652 /* If a hook is installed, let it do the work. */
1653 xassert (it
->what
== IT_CHARACTER
1654 || it
->what
== IT_COMPOSITION
1655 || it
->what
== IT_STRETCH
);
1657 if (it
->what
== IT_STRETCH
)
1659 produce_stretch_glyph (it
);
1663 /* Nothing but characters are supported on terminal frames. For a
1664 composition sequence, it->c is the first character of the
1666 xassert (it
->what
== IT_CHARACTER
1667 || it
->what
== IT_COMPOSITION
);
1669 if (it
->c
>= 040 && it
->c
< 0177)
1671 it
->pixel_width
= it
->nglyphs
= 1;
1675 else if (it
->c
== '\n')
1676 it
->pixel_width
= it
->nglyphs
= 0;
1677 else if (it
->c
== '\t')
1679 int absolute_x
= (it
->current_x
1680 + it
->continuation_lines_width
);
1682 = (((1 + absolute_x
+ it
->tab_width
- 1)
1687 /* If part of the TAB has been displayed on the previous line
1688 which is continued now, continuation_lines_width will have
1689 been incremented already by the part that fitted on the
1690 continued line. So, we will get the right number of spaces
1692 nspaces
= next_tab_x
- absolute_x
;
1699 it
->pixel_width
= it
->len
= 1;
1707 it
->pixel_width
= nspaces
;
1708 it
->nglyphs
= nspaces
;
1710 else if (CHAR_BYTE8_P (it
->c
))
1712 /* We must send the raw 8-bit byte as is to the terminal.
1713 Although there's no way to know how many columns it occupies
1714 on a screen, it is a good assumption that a single byte code
1715 has 1-column width. */
1716 it
->pixel_width
= it
->nglyphs
= 1;
1722 it
->pixel_width
= CHAR_WIDTH (it
->c
);
1723 it
->nglyphs
= it
->pixel_width
;
1730 /* Advance current_x by the pixel width as a convenience for
1732 if (it
->area
== TEXT_AREA
)
1733 it
->current_x
+= it
->pixel_width
;
1734 it
->ascent
= it
->max_ascent
= it
->phys_ascent
= it
->max_phys_ascent
= 0;
1735 it
->descent
= it
->max_descent
= it
->phys_descent
= it
->max_phys_descent
= 1;
1739 /* Produce a stretch glyph for iterator IT. IT->object is the value
1740 of the glyph property displayed. The value must be a list
1741 `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs
1744 1. `:width WIDTH' specifies that the space should be WIDTH *
1745 canonical char width wide. WIDTH may be an integer or floating
1748 2. `:align-to HPOS' specifies that the space should be wide enough
1749 to reach HPOS, a value in canonical character units. */
1752 produce_stretch_glyph (it
)
1755 /* (space :width WIDTH ...) */
1756 Lisp_Object prop
, plist
;
1757 int width
= 0, align_to
= -1;
1758 int zero_width_ok_p
= 0;
1761 /* List should start with `space'. */
1762 xassert (CONSP (it
->object
) && EQ (XCAR (it
->object
), Qspace
));
1763 plist
= XCDR (it
->object
);
1765 /* Compute the width of the stretch. */
1766 if ((prop
= Fplist_get (plist
, QCwidth
), !NILP (prop
))
1767 && calc_pixel_width_or_height (&tem
, it
, prop
, 0, 1, 0))
1769 /* Absolute width `:width WIDTH' specified and valid. */
1770 zero_width_ok_p
= 1;
1771 width
= (int)(tem
+ 0.5);
1773 else if ((prop
= Fplist_get (plist
, QCalign_to
), !NILP (prop
))
1774 && calc_pixel_width_or_height (&tem
, it
, prop
, 0, 1, &align_to
))
1776 if (it
->glyph_row
== NULL
|| !it
->glyph_row
->mode_line_p
)
1777 align_to
= (align_to
< 0
1779 : align_to
- window_box_left_offset (it
->w
, TEXT_AREA
));
1780 else if (align_to
< 0)
1781 align_to
= window_box_left_offset (it
->w
, TEXT_AREA
);
1782 width
= max (0, (int)(tem
+ 0.5) + align_to
- it
->current_x
);
1783 zero_width_ok_p
= 1;
1786 /* Nothing specified -> width defaults to canonical char width. */
1787 width
= FRAME_COLUMN_WIDTH (it
->f
);
1789 if (width
<= 0 && (width
< 0 || !zero_width_ok_p
))
1792 if (width
> 0 && it
->glyph_row
)
1794 Lisp_Object o_object
= it
->object
;
1795 Lisp_Object object
= it
->stack
[it
->sp
- 1].string
;
1799 if (!STRINGP (object
))
1800 object
= it
->w
->buffer
;
1801 it
->object
= object
;
1803 it
->pixel_width
= it
->len
= 1;
1806 it
->object
= o_object
;
1809 it
->pixel_width
= width
;
1810 it
->nglyphs
= width
;
1814 /* Get information about special display element WHAT in an
1815 environment described by IT. WHAT is one of IT_TRUNCATION or
1816 IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a
1817 non-null glyph_row member. This function ensures that fields like
1818 face_id, c, len of IT are left untouched. */
1821 produce_special_glyphs (it
, what
)
1823 enum display_element_type what
;
1829 temp_it
.what
= IT_CHARACTER
;
1831 temp_it
.object
= make_number (0);
1832 bzero (&temp_it
.current
, sizeof temp_it
.current
);
1834 if (what
== IT_CONTINUATION
)
1836 /* Continuation glyph. */
1838 && INTEGERP (DISP_CONTINUE_GLYPH (it
->dp
))
1839 && GLYPH_CHAR_VALID_P (XINT (DISP_CONTINUE_GLYPH (it
->dp
))))
1841 temp_it
.c
= FAST_GLYPH_CHAR (XINT (DISP_CONTINUE_GLYPH (it
->dp
)));
1842 temp_it
.len
= CHAR_BYTES (temp_it
.c
);
1847 produce_glyphs (&temp_it
);
1848 it
->pixel_width
= temp_it
.pixel_width
;
1849 it
->nglyphs
= temp_it
.pixel_width
;
1851 else if (what
== IT_TRUNCATION
)
1853 /* Truncation glyph. */
1855 && INTEGERP (DISP_TRUNC_GLYPH (it
->dp
))
1856 && GLYPH_CHAR_VALID_P (XINT (DISP_TRUNC_GLYPH (it
->dp
))))
1858 temp_it
.c
= FAST_GLYPH_CHAR (XINT (DISP_TRUNC_GLYPH (it
->dp
)));
1859 temp_it
.len
= CHAR_BYTES (temp_it
.c
);
1864 produce_glyphs (&temp_it
);
1865 it
->pixel_width
= temp_it
.pixel_width
;
1866 it
->nglyphs
= temp_it
.pixel_width
;
1874 /***********************************************************************
1876 ***********************************************************************/
1878 /* Value is non-zero if attribute ATTR may be used. ATTR should be
1879 one of the enumerators from enum no_color_bit, or a bit set built
1880 from them. Some display attributes may not be used together with
1881 color; the termcap capability `NC' specifies which ones. */
1883 #define MAY_USE_WITH_COLORS_P(ATTR) \
1884 (TN_max_colors > 0 \
1885 ? (TN_no_color_video & (ATTR)) == 0 \
1888 /* Turn appearances of face FACE_ID on tty frame F on. */
1891 turn_on_face (f
, face_id
)
1895 struct face
*face
= FACE_FROM_ID (f
, face_id
);
1896 long fg
= face
->foreground
;
1897 long bg
= face
->background
;
1899 /* Do this first because TS_end_standout_mode may be the same
1900 as TS_exit_attribute_mode, which turns all appearances off. */
1901 if (MAY_USE_WITH_COLORS_P (NC_REVERSE
))
1903 if (TN_max_colors
> 0)
1905 if (fg
>= 0 && bg
>= 0)
1907 /* If the terminal supports colors, we can set them
1908 below without using reverse video. The face's fg
1909 and bg colors are set as they should appear on
1910 the screen, i.e. they take the inverse-video'ness
1911 of the face already into account. */
1913 else if (inverse_video
)
1915 if (fg
== FACE_TTY_DEFAULT_FG_COLOR
1916 || bg
== FACE_TTY_DEFAULT_BG_COLOR
)
1917 toggle_highlight ();
1921 if (fg
== FACE_TTY_DEFAULT_BG_COLOR
1922 || bg
== FACE_TTY_DEFAULT_FG_COLOR
)
1923 toggle_highlight ();
1928 /* If we can't display colors, use reverse video
1929 if the face specifies that. */
1932 if (fg
== FACE_TTY_DEFAULT_FG_COLOR
1933 || bg
== FACE_TTY_DEFAULT_BG_COLOR
)
1934 toggle_highlight ();
1938 if (fg
== FACE_TTY_DEFAULT_BG_COLOR
1939 || bg
== FACE_TTY_DEFAULT_FG_COLOR
)
1940 toggle_highlight ();
1945 if (face
->tty_bold_p
)
1947 if (MAY_USE_WITH_COLORS_P (NC_BOLD
))
1948 OUTPUT1_IF (TS_enter_bold_mode
);
1950 else if (face
->tty_dim_p
)
1951 if (MAY_USE_WITH_COLORS_P (NC_DIM
))
1952 OUTPUT1_IF (TS_enter_dim_mode
);
1954 /* Alternate charset and blinking not yet used. */
1955 if (face
->tty_alt_charset_p
1956 && MAY_USE_WITH_COLORS_P (NC_ALT_CHARSET
))
1957 OUTPUT1_IF (TS_enter_alt_charset_mode
);
1959 if (face
->tty_blinking_p
1960 && MAY_USE_WITH_COLORS_P (NC_BLINK
))
1961 OUTPUT1_IF (TS_enter_blink_mode
);
1963 if (face
->tty_underline_p
&& MAY_USE_WITH_COLORS_P (NC_UNDERLINE
))
1964 OUTPUT1_IF (TS_enter_underline_mode
);
1966 if (TN_max_colors
> 0)
1970 if (fg
>= 0 && TS_set_foreground
)
1972 p
= tparam (TS_set_foreground
, NULL
, 0, (int) fg
);
1977 if (bg
>= 0 && TS_set_background
)
1979 p
= tparam (TS_set_background
, NULL
, 0, (int) bg
);
1987 /* Turn off appearances of face FACE_ID on tty frame F. */
1990 turn_off_face (f
, face_id
)
1994 struct face
*face
= FACE_FROM_ID (f
, face_id
);
1996 xassert (face
!= NULL
);
1998 if (TS_exit_attribute_mode
)
2000 /* Capability "me" will turn off appearance modes double-bright,
2001 half-bright, reverse-video, standout, underline. It may or
2002 may not turn off alt-char-mode. */
2003 if (face
->tty_bold_p
2005 || face
->tty_reverse_p
2006 || face
->tty_alt_charset_p
2007 || face
->tty_blinking_p
2008 || face
->tty_underline_p
)
2010 OUTPUT1_IF (TS_exit_attribute_mode
);
2011 if (strcmp (TS_exit_attribute_mode
, TS_end_standout_mode
) == 0)
2015 if (face
->tty_alt_charset_p
)
2016 OUTPUT_IF (TS_exit_alt_charset_mode
);
2020 /* If we don't have "me" we can only have those appearances
2021 that have exit sequences defined. */
2022 if (face
->tty_alt_charset_p
)
2023 OUTPUT_IF (TS_exit_alt_charset_mode
);
2025 if (face
->tty_underline_p
)
2026 OUTPUT_IF (TS_exit_underline_mode
);
2029 /* Switch back to default colors. */
2030 if (TN_max_colors
> 0
2031 && ((face
->foreground
!= FACE_TTY_DEFAULT_COLOR
2032 && face
->foreground
!= FACE_TTY_DEFAULT_FG_COLOR
)
2033 || (face
->background
!= FACE_TTY_DEFAULT_COLOR
2034 && face
->background
!= FACE_TTY_DEFAULT_BG_COLOR
)))
2035 OUTPUT1_IF (TS_orig_pair
);
2039 /* Return non-zero if the terminal on frame F supports all of the
2040 capabilities in CAPS simultaneously, with foreground and background
2041 colors FG and BG. */
2044 tty_capable_p (f
, caps
, fg
, bg
)
2047 unsigned long fg
, bg
;
2049 #define TTY_CAPABLE_P_TRY(cap, TS, NC_bit) \
2050 if ((caps & (cap)) && (!(TS) || !MAY_USE_WITH_COLORS_P(NC_bit))) \
2053 TTY_CAPABLE_P_TRY (TTY_CAP_INVERSE
, TS_standout_mode
, NC_REVERSE
);
2054 TTY_CAPABLE_P_TRY (TTY_CAP_UNDERLINE
, TS_enter_underline_mode
, NC_UNDERLINE
);
2055 TTY_CAPABLE_P_TRY (TTY_CAP_BOLD
, TS_enter_bold_mode
, NC_BOLD
);
2056 TTY_CAPABLE_P_TRY (TTY_CAP_DIM
, TS_enter_dim_mode
, NC_DIM
);
2057 TTY_CAPABLE_P_TRY (TTY_CAP_BLINK
, TS_enter_blink_mode
, NC_BLINK
);
2058 TTY_CAPABLE_P_TRY (TTY_CAP_ALT_CHARSET
, TS_enter_alt_charset_mode
, NC_ALT_CHARSET
);
2065 /* Return non-zero if the terminal is capable to display colors. */
2067 DEFUN ("tty-display-color-p", Ftty_display_color_p
, Stty_display_color_p
,
2069 doc
: /* Return non-nil if TTY can display colors on DISPLAY. */)
2071 Lisp_Object display
;
2073 return TN_max_colors
> 0 ? Qt
: Qnil
;
2076 /* Return the number of supported colors. */
2077 DEFUN ("tty-display-color-cells", Ftty_display_color_cells
,
2078 Stty_display_color_cells
, 0, 1, 0,
2079 doc
: /* Return the number of colors supported by TTY on DISPLAY. */)
2081 Lisp_Object display
;
2083 return make_number (TN_max_colors
);
2088 /* Save or restore the default color-related capabilities of this
2091 tty_default_color_capabilities (save
)
2095 *default_orig_pair
, *default_set_foreground
, *default_set_background
;
2096 static int default_max_colors
, default_max_pairs
, default_no_color_video
;
2100 if (default_orig_pair
)
2101 xfree (default_orig_pair
);
2102 default_orig_pair
= TS_orig_pair
? xstrdup (TS_orig_pair
) : NULL
;
2104 if (default_set_foreground
)
2105 xfree (default_set_foreground
);
2106 default_set_foreground
= TS_set_foreground
? xstrdup (TS_set_foreground
)
2109 if (default_set_background
)
2110 xfree (default_set_background
);
2111 default_set_background
= TS_set_background
? xstrdup (TS_set_background
)
2114 default_max_colors
= TN_max_colors
;
2115 default_max_pairs
= TN_max_pairs
;
2116 default_no_color_video
= TN_no_color_video
;
2120 TS_orig_pair
= default_orig_pair
;
2121 TS_set_foreground
= default_set_foreground
;
2122 TS_set_background
= default_set_background
;
2123 TN_max_colors
= default_max_colors
;
2124 TN_max_pairs
= default_max_pairs
;
2125 TN_no_color_video
= default_no_color_video
;
2129 /* Setup one of the standard tty color schemes according to MODE.
2130 MODE's value is generally the number of colors which we want to
2131 support; zero means set up for the default capabilities, the ones
2132 we saw at term_init time; -1 means turn off color support. */
2134 tty_setup_colors (mode
)
2137 /* Canonicalize all negative values of MODE. */
2143 case -1: /* no colors at all */
2146 TN_no_color_video
= 0;
2147 TS_set_foreground
= TS_set_background
= TS_orig_pair
= NULL
;
2149 case 0: /* default colors, if any */
2151 tty_default_color_capabilities (0);
2153 case 8: /* 8 standard ANSI colors */
2154 TS_orig_pair
= "\033[0m";
2156 TS_set_foreground
= "\033[3%p1%dm";
2157 TS_set_background
= "\033[4%p1%dm";
2159 TS_set_foreground
= "\033[3%dm";
2160 TS_set_background
= "\033[4%dm";
2164 TN_no_color_video
= 0;
2170 set_tty_color_mode (f
, val
)
2174 Lisp_Object color_mode_spec
, current_mode_spec
;
2175 Lisp_Object color_mode
, current_mode
;
2177 extern Lisp_Object Qtty_color_mode
;
2178 Lisp_Object tty_color_mode_alist
;
2180 tty_color_mode_alist
= Fintern_soft (build_string ("tty-color-mode-alist"),
2187 if (NILP (tty_color_mode_alist
))
2188 color_mode_spec
= Qnil
;
2190 color_mode_spec
= Fassq (val
, XSYMBOL (tty_color_mode_alist
)->value
);
2192 if (CONSP (color_mode_spec
))
2193 color_mode
= XCDR (color_mode_spec
);
2198 current_mode_spec
= assq_no_quit (Qtty_color_mode
, f
->param_alist
);
2200 if (CONSP (current_mode_spec
))
2201 current_mode
= XCDR (current_mode_spec
);
2203 current_mode
= Qnil
;
2204 if (INTEGERP (color_mode
))
2205 mode
= XINT (color_mode
);
2207 mode
= 0; /* meaning default */
2208 if (INTEGERP (current_mode
))
2209 old_mode
= XINT (current_mode
);
2213 if (mode
!= old_mode
)
2215 tty_setup_colors (mode
);
2216 /* This recomputes all the faces given the new color
2218 call0 (intern ("tty-set-up-initial-frame-faces"));
2223 #endif /* !WINDOWSNT */
2226 /***********************************************************************
2228 ***********************************************************************/
2231 term_init (terminal_type
)
2232 char *terminal_type
;
2235 char **address
= &area
;
2236 char *buffer
= NULL
;
2237 int buffer_size
= 4096;
2240 struct frame
*sf
= XFRAME (selected_frame
);
2243 initialize_w32_display ();
2247 area
= (char *) xmalloc (2044);
2249 FrameRows
= FRAME_LINES (sf
);
2250 FrameCols
= FRAME_COLS (sf
);
2251 specified_window
= FRAME_LINES (sf
);
2253 delete_in_insert_mode
= 1;
2256 scroll_region_ok
= 0;
2258 /* Seems to insert lines when it's not supposed to, messing
2259 up the display. In doing a trace, it didn't seem to be
2260 called much, so I don't think we're losing anything by
2263 line_ins_del_ok
= 0;
2264 char_ins_del_ok
= 1;
2268 FRAME_CAN_HAVE_SCROLL_BARS (sf
) = 0;
2269 FRAME_VERTICAL_SCROLL_BAR_TYPE (sf
) = vertical_scroll_bar_none
;
2270 TN_max_colors
= 16; /* Required to be non-zero for tty-display-color-p */
2273 #else /* not WINDOWSNT */
2277 buffer
= (char *) xmalloc (buffer_size
);
2278 status
= tgetent (buffer
, terminal_type
);
2282 fatal ("Cannot open terminfo database file");
2284 fatal ("Cannot open termcap database file");
2290 fatal ("Terminal type %s is not defined.\n\
2291 If that is not the actual type of terminal you have,\n\
2292 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2293 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2294 to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.",
2297 fatal ("Terminal type %s is not defined.\n\
2298 If that is not the actual type of terminal you have,\n\
2299 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2300 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2301 to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.",
2307 if (strlen (buffer
) >= buffer_size
)
2309 buffer_size
= strlen (buffer
);
2311 area
= (char *) xmalloc (buffer_size
);
2313 TS_ins_line
= tgetstr ("al", address
);
2314 TS_ins_multi_lines
= tgetstr ("AL", address
);
2315 TS_bell
= tgetstr ("bl", address
);
2316 BackTab
= tgetstr ("bt", address
);
2317 TS_clr_to_bottom
= tgetstr ("cd", address
);
2318 TS_clr_line
= tgetstr ("ce", address
);
2319 TS_clr_frame
= tgetstr ("cl", address
);
2320 ColPosition
= NULL
; /* tgetstr ("ch", address); */
2321 AbsPosition
= tgetstr ("cm", address
);
2322 CR
= tgetstr ("cr", address
);
2323 TS_set_scroll_region
= tgetstr ("cs", address
);
2324 TS_set_scroll_region_1
= tgetstr ("cS", address
);
2325 RowPosition
= tgetstr ("cv", address
);
2326 TS_del_char
= tgetstr ("dc", address
);
2327 TS_del_multi_chars
= tgetstr ("DC", address
);
2328 TS_del_line
= tgetstr ("dl", address
);
2329 TS_del_multi_lines
= tgetstr ("DL", address
);
2330 TS_delete_mode
= tgetstr ("dm", address
);
2331 TS_end_delete_mode
= tgetstr ("ed", address
);
2332 TS_end_insert_mode
= tgetstr ("ei", address
);
2333 Home
= tgetstr ("ho", address
);
2334 TS_ins_char
= tgetstr ("ic", address
);
2335 TS_ins_multi_chars
= tgetstr ("IC", address
);
2336 TS_insert_mode
= tgetstr ("im", address
);
2337 TS_pad_inserted_char
= tgetstr ("ip", address
);
2338 TS_end_keypad_mode
= tgetstr ("ke", address
);
2339 TS_keypad_mode
= tgetstr ("ks", address
);
2340 LastLine
= tgetstr ("ll", address
);
2341 Right
= tgetstr ("nd", address
);
2342 Down
= tgetstr ("do", address
);
2344 Down
= tgetstr ("nl", address
); /* Obsolete name for "do" */
2346 /* VMS puts a carriage return before each linefeed,
2347 so it is not safe to use linefeeds. */
2348 if (Down
&& Down
[0] == '\n' && Down
[1] == '\0')
2351 if (tgetflag ("bs"))
2352 Left
= "\b"; /* can't possibly be longer! */
2353 else /* (Actually, "bs" is obsolete...) */
2354 Left
= tgetstr ("le", address
);
2356 Left
= tgetstr ("bc", address
); /* Obsolete name for "le" */
2357 TS_pad_char
= tgetstr ("pc", address
);
2358 TS_repeat
= tgetstr ("rp", address
);
2359 TS_end_standout_mode
= tgetstr ("se", address
);
2360 TS_fwd_scroll
= tgetstr ("sf", address
);
2361 TS_standout_mode
= tgetstr ("so", address
);
2362 TS_rev_scroll
= tgetstr ("sr", address
);
2363 Wcm
.cm_tab
= tgetstr ("ta", address
);
2364 TS_end_termcap_modes
= tgetstr ("te", address
);
2365 TS_termcap_modes
= tgetstr ("ti", address
);
2366 Up
= tgetstr ("up", address
);
2367 TS_visible_bell
= tgetstr ("vb", address
);
2368 TS_cursor_normal
= tgetstr ("ve", address
);
2369 TS_cursor_visible
= tgetstr ("vs", address
);
2370 TS_cursor_invisible
= tgetstr ("vi", address
);
2371 TS_set_window
= tgetstr ("wi", address
);
2373 TS_enter_underline_mode
= tgetstr ("us", address
);
2374 TS_exit_underline_mode
= tgetstr ("ue", address
);
2375 TS_enter_bold_mode
= tgetstr ("md", address
);
2376 TS_enter_dim_mode
= tgetstr ("mh", address
);
2377 TS_enter_blink_mode
= tgetstr ("mb", address
);
2378 TS_enter_reverse_mode
= tgetstr ("mr", address
);
2379 TS_enter_alt_charset_mode
= tgetstr ("as", address
);
2380 TS_exit_alt_charset_mode
= tgetstr ("ae", address
);
2381 TS_exit_attribute_mode
= tgetstr ("me", address
);
2383 MultiUp
= tgetstr ("UP", address
);
2384 MultiDown
= tgetstr ("DO", address
);
2385 MultiLeft
= tgetstr ("LE", address
);
2386 MultiRight
= tgetstr ("RI", address
);
2388 /* SVr4/ANSI color suppert. If "op" isn't available, don't support
2389 color because we can't switch back to the default foreground and
2391 TS_orig_pair
= tgetstr ("op", address
);
2394 TS_set_foreground
= tgetstr ("AF", address
);
2395 TS_set_background
= tgetstr ("AB", address
);
2396 if (!TS_set_foreground
)
2399 TS_set_foreground
= tgetstr ("Sf", address
);
2400 TS_set_background
= tgetstr ("Sb", address
);
2403 TN_max_colors
= tgetnum ("Co");
2404 TN_max_pairs
= tgetnum ("pa");
2406 TN_no_color_video
= tgetnum ("NC");
2407 if (TN_no_color_video
== -1)
2408 TN_no_color_video
= 0;
2411 tty_default_color_capabilities (1);
2413 MagicWrap
= tgetflag ("xn");
2414 /* Since we make MagicWrap terminals look like AutoWrap, we need to have
2415 the former flag imply the latter. */
2416 AutoWrap
= MagicWrap
|| tgetflag ("am");
2417 memory_below_frame
= tgetflag ("db");
2418 TF_hazeltine
= tgetflag ("hz");
2419 must_write_spaces
= tgetflag ("in");
2420 meta_key
= tgetflag ("km") || tgetflag ("MT");
2421 TF_insmode_motion
= tgetflag ("mi");
2422 TF_standout_motion
= tgetflag ("ms");
2423 TF_underscore
= tgetflag ("ul");
2424 TF_teleray
= tgetflag ("xt");
2426 term_get_fkeys (address
);
2428 /* Get frame size from system, or else from termcap. */
2431 get_frame_size (&width
, &height
);
2432 FRAME_COLS (sf
) = width
;
2433 FRAME_LINES (sf
) = height
;
2436 if (FRAME_COLS (sf
) <= 0)
2437 SET_FRAME_COLS (sf
, tgetnum ("co"));
2439 /* Keep width and external_width consistent */
2440 SET_FRAME_COLS (sf
, FRAME_COLS (sf
));
2441 if (FRAME_LINES (sf
) <= 0)
2442 FRAME_LINES (sf
) = tgetnum ("li");
2444 if (FRAME_LINES (sf
) < 3 || FRAME_COLS (sf
) < 3)
2445 fatal ("Screen size %dx%d is too small",
2446 FRAME_LINES (sf
), FRAME_COLS (sf
));
2448 min_padding_speed
= tgetnum ("pb");
2449 TabWidth
= tgetnum ("tw");
2452 /* These capabilities commonly use ^J.
2453 I don't know why, but sending them on VMS does not work;
2454 it causes following spaces to be lost, sometimes.
2455 For now, the simplest fix is to avoid using these capabilities ever. */
2456 if (Down
&& Down
[0] == '\n')
2464 TS_fwd_scroll
= Down
;
2466 PC
= TS_pad_char
? *TS_pad_char
: 0;
2471 /* Turned off since /etc/termcap seems to have :ta= for most terminals
2472 and newer termcap doc does not seem to say there is a default.
2477 /* We don't support standout modes that use `magic cookies', so
2478 turn off any that do. */
2479 if (TS_standout_mode
&& tgetnum ("sg") >= 0)
2481 TS_standout_mode
= 0;
2482 TS_end_standout_mode
= 0;
2484 if (TS_enter_underline_mode
&& tgetnum ("ug") >= 0)
2486 TS_enter_underline_mode
= 0;
2487 TS_exit_underline_mode
= 0;
2490 /* If there's no standout mode, try to use underlining instead. */
2491 if (TS_standout_mode
== 0)
2493 TS_standout_mode
= TS_enter_underline_mode
;
2494 TS_end_standout_mode
= TS_exit_underline_mode
;
2497 /* If no `se' string, try using a `me' string instead.
2498 If that fails, we can't use standout mode at all. */
2499 if (TS_end_standout_mode
== 0)
2501 char *s
= tgetstr ("me", address
);
2503 TS_end_standout_mode
= s
;
2505 TS_standout_mode
= 0;
2511 /* We can't support standout mode, because it uses magic cookies. */
2512 TS_standout_mode
= 0;
2513 /* But that means we cannot rely on ^M to go to column zero! */
2515 /* LF can't be trusted either -- can alter hpos */
2516 /* if move at column 0 thru a line with TS_standout_mode */
2520 /* Special handling for certain terminal types known to need it */
2522 if (!strcmp (terminal_type
, "supdup"))
2524 memory_below_frame
= 1;
2525 Wcm
.cm_losewrap
= 1;
2527 if (!strncmp (terminal_type
, "c10", 3)
2528 || !strcmp (terminal_type
, "perq"))
2530 /* Supply a makeshift :wi string.
2531 This string is not valid in general since it works only
2532 for windows starting at the upper left corner;
2533 but that is all Emacs uses.
2535 This string works only if the frame is using
2536 the top of the video memory, because addressing is memory-relative.
2537 So first check the :ti string to see if that is true.
2539 It would be simpler if the :wi string could go in the termcap
2540 entry, but it can't because it is not fully valid.
2541 If it were in the termcap entry, it would confuse other programs. */
2544 p
= TS_termcap_modes
;
2545 while (*p
&& strcmp (p
, "\033v "))
2548 TS_set_window
= "\033v%C %C %C %C ";
2550 /* Termcap entry often fails to have :in: flag */
2551 must_write_spaces
= 1;
2552 /* :ti string typically fails to have \E^G! in it */
2553 /* This limits scope of insert-char to one line. */
2554 strcpy (area
, TS_termcap_modes
);
2555 strcat (area
, "\033\007!");
2556 TS_termcap_modes
= area
;
2557 area
+= strlen (area
) + 1;
2559 /* Change all %+ parameters to %C, to handle
2560 values above 96 correctly for the C100. */
2563 if (p
[0] == '%' && p
[1] == '+')
2569 FrameRows
= FRAME_LINES (sf
);
2570 FrameCols
= FRAME_COLS (sf
);
2571 specified_window
= FRAME_LINES (sf
);
2573 if (Wcm_init () == -1) /* can't do cursor motion */
2575 fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\
2576 It lacks the ability to position the cursor.\n\
2577 If that is not the actual type of terminal you have, use either the\n\
2578 DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\
2579 or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.",
2583 fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\
2584 It lacks the ability to position the cursor.\n\
2585 If that is not the actual type of terminal you have,\n\
2586 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2587 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2588 to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.",
2590 # else /* TERMCAP */
2591 fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\
2592 It lacks the ability to position the cursor.\n\
2593 If that is not the actual type of terminal you have,\n\
2594 use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
2595 `setenv TERM ...') to specify the correct type. It may be necessary\n\
2596 to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.",
2598 # endif /* TERMINFO */
2600 if (FRAME_LINES (sf
) <= 0
2601 || FRAME_COLS (sf
) <= 0)
2602 fatal ("The frame size has not been specified");
2604 delete_in_insert_mode
2605 = TS_delete_mode
&& TS_insert_mode
2606 && !strcmp (TS_delete_mode
, TS_insert_mode
);
2608 se_is_so
= (TS_standout_mode
2609 && TS_end_standout_mode
2610 && !strcmp (TS_standout_mode
, TS_end_standout_mode
));
2612 UseTabs
= tabs_safe_p () && TabWidth
== 8;
2616 && (TS_set_window
|| TS_set_scroll_region
|| TS_set_scroll_region_1
));
2618 line_ins_del_ok
= (((TS_ins_line
|| TS_ins_multi_lines
)
2619 && (TS_del_line
|| TS_del_multi_lines
))
2620 || (scroll_region_ok
&& TS_fwd_scroll
&& TS_rev_scroll
));
2622 char_ins_del_ok
= ((TS_ins_char
|| TS_insert_mode
2623 || TS_pad_inserted_char
|| TS_ins_multi_chars
)
2624 && (TS_del_char
|| TS_del_multi_chars
));
2626 fast_clear_end_of_line
= TS_clr_line
!= 0;
2629 if (read_socket_hook
) /* Baudrate is somewhat */
2630 /* meaningless in this case */
2633 FRAME_CAN_HAVE_SCROLL_BARS (sf
) = 0;
2634 FRAME_VERTICAL_SCROLL_BAR_TYPE (sf
) = vertical_scroll_bar_none
;
2636 if (! terminal_encode_buffer
)
2638 terminal_encode_buffer
= xmalloc (1024);
2639 if (! terminal_encode_buffer
)
2641 terminal_encode_buf_size
= 1024;
2643 #endif /* WINDOWSNT */
2650 fatal (str
, arg1
, arg2
)
2651 char *str
, *arg1
, *arg2
;
2653 fprintf (stderr
, "emacs: ");
2654 fprintf (stderr
, str
, arg1
, arg2
);
2655 fprintf (stderr
, "\n");
2663 DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo
,
2664 doc
: /* Non-nil means the system uses terminfo rather than termcap.
2665 This variable can be used by terminal emulator packages. */);
2667 system_uses_terminfo
= 1;
2669 system_uses_terminfo
= 0;
2672 DEFVAR_LISP ("ring-bell-function", &Vring_bell_function
,
2673 doc
: /* Non-nil means call this function to ring the bell.
2674 The function should accept no arguments. */);
2675 Vring_bell_function
= Qnil
;
2677 defsubr (&Stty_display_color_p
);
2678 defsubr (&Stty_display_color_cells
);
2681 /* arch-tag: 498e7449-6f2e-45e2-91dd-b7d4ca488193
2682 (do not change this comment) */