op public repos

Blob

Date:: Wed Aug 18 15:44:16 2021 UTC
Message:: bind M-[ and M-] to tab-move-to and tab-move
Actions:: History | Blame | Raw File
1 /*
2  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include "compat.h"
18 
19 #include <curses.h>
20 #include <limits.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <unistd.h>
24 
25 #include "defaults.h"
26 #include "telescope.h"
27 #include "ui.h"
28 
29 char *new_tab_url = NULL;
30 
31 int autosave = 20;
32 int dont_wrap_pre = 0;
33 int emojify_link = 1;
34 int enable_colors = 1;
35 int fill_column = 80;
36 int hide_pre_blocks = 0;
37 int hide_pre_closing_line = 0;
38 int hide_pre_context = 0;
39 int olivetti_mode = 1;
40 int set_title = 1;
41 
42 struct lineprefix line_prefixes[] = {
43 	[LINE_TEXT] =		{ "",		"" },
44 	[LINE_LINK] =		{ "→ ",	"  " },
45 	[LINE_TITLE_1] =	{ "# ",		"  " },
46 	[LINE_TITLE_2] =	{ "## ",	"   " },
47 	[LINE_TITLE_3] =	{ "### ",	"    " },
48 	[LINE_ITEM] =		{ " • ",	"   " },
49 	[LINE_QUOTE] =		{ " ┃ ",	" ┃ " },
50 	[LINE_PRE_START] =	{ "─── ",	"    " },
51 	[LINE_PRE_CONTENT] =	{ "",		"" },
52 	[LINE_PRE_END] =	{ "─── ",	"" },
53 
54 	[LINE_PATCH] =		{"", ""},
55 	[LINE_PATCH_HDR] =	{"", ""},
56 	[LINE_PATCH_HUNK_HDR] =	{"", ""},
57 	[LINE_PATCH_ADD] =	{"", ""},
58 	[LINE_PATCH_DEL] =	{"", ""},
59 
60 	[LINE_COMPL] =		{"", ""},
61 	[LINE_COMPL_CURRENT] =	{"", ""},
62 
63 	[LINE_HELP] =		{"", ""},
64 };
65 
66 struct line_face line_faces[] = {
67 	[LINE_TEXT] =		{
68 		.prfx_pair = PT_PRFX,
69 		.pair = PT,
70 		.trail_pair = PT_TRAIL,
71 	},
72 	[LINE_LINK] =		{
73 		.prfx_pair = PL_PRFX,
74 		.pair = PL,
75 		.trail_pair = PL_TRAIL,
76 		.attr = A_UNDERLINE,
77 	},
78 	[LINE_TITLE_1] =	{
79 		.prfx_pair = PT1_PRFX,
80 		.pair = PT1,
81 		.trail_pair = PT1_TRAIL,
82 		.attr = A_BOLD,
83 	},
84 	[LINE_TITLE_2] =	{
85 		.prfx_pair = PT2_PRFX,
86 		.pair = PT2,
87 		.trail_pair = PT2_TRAIL,
88 		.attr = A_BOLD,
89 	},
90 	[LINE_TITLE_3] =	{
91 		.prfx_pair = PT3_PRFX,
92 		.pair = PT3,
93 		.trail_pair = PT3_TRAIL,
94 		.attr = A_BOLD,
95 	},
96 	[LINE_ITEM] =		{
97 		.prfx_pair = PI_PRFX,
98 		.pair = PI,
99 		.trail_pair = PI_TRAIL,
100 	},
101 	[LINE_QUOTE] =		{
102 		.prfx_pair = PQ_PRFX,
103 		.pair = PQ,
104 		.trail_pair = PQ_TRAIL,
105 		.attr = A_DIM,
106 	},
107 	[LINE_PRE_START] =	{
108 		.prfx_pair = PPSTART_PRFX,
109 		.pair = PPSTART,
110 		.trail_pair = PPSTART_TRAIL,
111 	},
112 	[LINE_PRE_CONTENT] =	{
113 		.prfx_pair = PP_PRFX,
114 		.pair = PP,
115 		.trail_pair = PP_TRAIL,
116 	},
117 	[LINE_PRE_END] =	{
118 		.prfx_pair = PPEND_PRFX,
119 		.pair = PPEND,
120 		.trail_pair = PPEND_TRAIL,
121 	},
122 
123 	/* text/x-patch */
124 	[LINE_PATCH] = {
125 		.prfx_pair = PPATCH_PRFX,
126 		.pair = PPATCH,
127 		.trail_pair = PPATCH_TRAIL,
128 	},
129 	[LINE_PATCH_HDR] = {
130 		.prfx_pair = PPATCH_HDR_PRFX,
131 		.pair = PPATCH_HDR,
132 		.trail_pair = PPATCH_HDR_TRAIL,
133 	},
134 	[LINE_PATCH_HUNK_HDR] = {
135 		.prfx_pair = PPATCH_HUNK_HDR_PRFX,
136 		.pair = PPATCH_HUNK_HDR,
137 		.trail_pair = PPATCH_HUNK_HDR_TRAIL,
138 	},
139 	[LINE_PATCH_ADD] = {
140 		.prfx_pair = PPATCH_ADD_PRFX,
141 		.pair = PPATCH_ADD,
142 		.trail_pair = PPATCH_ADD_TRAIL,
143 	},
144 	[LINE_PATCH_DEL] = {
145 		.prfx_pair = PPATCH_DEL_PRFX,
146 		.pair = PPATCH_DEL,
147 		.trail_pair = PPATCH_DEL_TRAIL,
148 	},
149 
150 	/* minibuffer */
151 	[LINE_COMPL] = {
152 		.prfx_pair = PCOMPL_PRFX,
153 		.pair = PCOMPL,
154 		.trail_pair = PCOMPL_TRAIL,
155 	},
156 	[LINE_COMPL_CURRENT] = {
157 		.prfx_pair = PCOMPL_CURR_PRFX,
158 		.pair = PCOMPL_CURR,
159 		.trail_pair = PCOMPL_CURR_TRAIL,
160 		.attr = A_REVERSE,
161 		.trail_attr = A_REVERSE,
162 	},
163 
164 	/* help */
165 	[LINE_HELP] = {
166 		.prfx_pair = PHELP_PRFX,
167 		.pair = PHELP,
168 		.trail_pair = PHELP_TRAIL,
169 	},
170 };
171 
172 struct tab_face tab_face = {
173 	.bg_attr = A_REVERSE, .bg_bg = -1, .bg_fg = -1,
174 	.t_attr  = A_REVERSE, .t_bg  = -1, .t_fg  = -1,
175 	.c_attr  = A_NORMAL,  .c_bg  = -1, .c_fg  = -1,
176 
177 	/*
178 	 * set these so that even when enable-color=0 the bar has some
179 	 * sane defaults.
180 	 */
181 	.background =	A_REVERSE,
182 	.tab =		A_REVERSE,
183 	.current =	A_NORMAL,
184 };
185 
186 struct body_face body_face = {
187 	.lbg = -1, .lfg = -1,
188 	.bg  = -1, .fg  = -1,
189 	.rbg = -1, .rfg = -1,
190 };
191 
192 struct modeline_face modeline_face = {
193 	.bg  = -1,
194 	.fg  = -1,
195 	.attr = A_REVERSE,
196 };
197 
198 struct minibuffer_face minibuffer_face = {
199 	.bg = -1,
200 	.fg = -1,
201 	.attr = A_NORMAL,
202 };
203 
204 struct mapping {
205 	const char	*label;
206 	int		 linetype;
207 } mappings[] = {
208 	{"text",	LINE_TEXT},
209 	{"link",	LINE_LINK},
210 	{"title1",	LINE_TITLE_1},
211 	{"title2",	LINE_TITLE_2},
212 	{"title3",	LINE_TITLE_3},
213 	{"item",	LINE_ITEM},
214 	{"quote",	LINE_QUOTE},
215 	{"pre.start",	LINE_PRE_START},
216 	{"pre",		LINE_PRE_CONTENT},
217 	{"pre.end",	LINE_PRE_END},
218 
219 	/* text/x-patch */
220 	{"patch",	LINE_PATCH},
221 	{"patch.hdr",	LINE_PATCH_HDR},
222 	{"patch.hunk",	LINE_PATCH_HUNK_HDR},
223 	{"patch.add",	LINE_PATCH_ADD},
224 	{"patch.del",	LINE_PATCH_DEL},
225 
226 	/* minibuffer */
227 	{"compl",	LINE_COMPL},
228 	{"compl.current", LINE_COMPL_CURRENT},
229 
230 	/* help */
231 	{"help",	LINE_HELP},
232 };
233 
234 static struct mapping *
235 mapping_by_name(const char *name)
236 {
237 	size_t i;
238 
239 	for (i = 0; i < sizeof(mappings)/sizeof(mappings[0]); ++i) {
240 		if (!strcmp(name, mappings[i].label))
241 			return &mappings[i];
242 	}
243 
244 	return NULL;
245 }
246 
247 
248 static inline void
249 global_set_key(const char *key, void (*fn)(struct buffer*))
250 {
251 	if (!kmap_define_key(&global_map, key, fn))
252 		_exit(1);
253 }
254 
255 static inline void
256 minibuffer_set_key(const char *key, void (*fn)(struct buffer*))
257 {
258 	if (!kmap_define_key(&minibuffer_map, key, fn))
259 		_exit(1);
260 }
261 
262 static void
263 load_default_keys(void)
264 {
265 	/* === global map === */
266 
267 	/* emacs */
268 	global_set_key("C-p",		cmd_previous_line);
269 	global_set_key("C-n",		cmd_next_line);
270 	global_set_key("C-f",		cmd_forward_char);
271 	global_set_key("C-b",		cmd_backward_char);
272 	global_set_key("M-{",		cmd_backward_paragraph);
273 	global_set_key("M-}",		cmd_forward_paragraph);
274 	global_set_key("C-a",		cmd_move_beginning_of_line);
275 	global_set_key("C-e",		cmd_move_end_of_line);
276 
277 	global_set_key("M-v",		cmd_scroll_up);
278 	global_set_key("C-v",		cmd_scroll_down);
279 	global_set_key("M-space",	cmd_scroll_up);
280 	global_set_key("space",		cmd_scroll_down);
281 
282 	global_set_key("M-<",		cmd_beginning_of_buffer);
283 	global_set_key("M->",		cmd_end_of_buffer);
284 
285 	global_set_key("C-x C-c",	cmd_kill_telescope);
286 
287 	global_set_key("C-g",		cmd_clear_minibuf);
288 
289 	global_set_key("M-x",		cmd_execute_extended_command);
290 
291 	global_set_key("C-c {",		cmd_dec_fill_column);
292 	global_set_key("C-c }",		cmd_inc_fill_column);
293 
294 	global_set_key("C-c p",		cmd_previous_heading);
295 	global_set_key("C-c n",		cmd_next_heading);
296 
297 	global_set_key(">",		cmd_load_url);
298 	global_set_key("<",		cmd_load_current_url);
299 	global_set_key("C-x C-f",	cmd_load_url);
300 	global_set_key("C-x M-f",	cmd_load_current_url);
301 
302 	global_set_key("C-x o",		cmd_other_window);
303 
304 	global_set_key("C-x t 0",	cmd_tab_close);
305 	global_set_key("C-x t 1",	cmd_tab_close_other);
306 	global_set_key("C-x t 2",	cmd_tab_new);
307 	global_set_key("C-x t o",	cmd_tab_next);
308 	global_set_key("C-x t O",	cmd_tab_previous);
309 	global_set_key("C-x t m",	cmd_tab_move);
310 	global_set_key("C-x t M",	cmd_tab_move_to);
311 
312 	global_set_key("B",		cmd_previous_page);
313 	global_set_key("C-M-b",		cmd_previous_page);
314 	global_set_key("F",		cmd_next_page);
315 	global_set_key("C-M-f",		cmd_next_page);
316 
317 	global_set_key("<f7> a",	cmd_bookmark_page);
318 	global_set_key("<f7> <f7>",	cmd_list_bookmarks);
319 
320 	global_set_key("C-z",		cmd_suspend_telescope);
321 
322 	/* vi/vi-like */
323 	global_set_key("k",		cmd_previous_line);
324 	global_set_key("j",		cmd_next_line);
325 	global_set_key("l",		cmd_forward_char);
326 	global_set_key("h",		cmd_backward_char);
327 	global_set_key("{",		cmd_backward_paragraph);
328 	global_set_key("}",		cmd_forward_paragraph);
329 	global_set_key("^",		cmd_move_beginning_of_line);
330 	global_set_key("$",		cmd_move_end_of_line);
331 
332 	global_set_key("K",		cmd_scroll_line_up);
333 	global_set_key("J",		cmd_scroll_line_down);
334 
335 	global_set_key("g g",		cmd_beginning_of_buffer);
336 	global_set_key("G",		cmd_end_of_buffer);
337 
338 	global_set_key("g D",		cmd_tab_close);
339 	global_set_key("g N",		cmd_tab_new);
340 	global_set_key("g t",		cmd_tab_next);
341 	global_set_key("g T",		cmd_tab_previous);
342 	global_set_key("g M-t",		cmd_tab_move);
343 	global_set_key("g M-T",		cmd_tab_move_to);
344 
345 	global_set_key("H",		cmd_previous_page);
346 	global_set_key("L",		cmd_next_page);
347 
348 	/* tmp */
349 	global_set_key("q",		cmd_kill_telescope);
350 
351 	global_set_key("esc",		cmd_clear_minibuf);
352 
353 	global_set_key(":",		cmd_execute_extended_command);
354 
355 	/* cua */
356 	global_set_key("<up>",		cmd_previous_line);
357 	global_set_key("<down>",	cmd_next_line);
358 	global_set_key("<right>",	cmd_forward_char);
359 	global_set_key("<left>",	cmd_backward_char);
360 	global_set_key("<home>",	cmd_move_beginning_of_line);
361 	global_set_key("<end>",		cmd_move_end_of_line);
362 	global_set_key("<prior>",	cmd_scroll_up);
363 	global_set_key("<next>",	cmd_scroll_down);
364 
365 	global_set_key("C-w",		cmd_tab_close);
366 	global_set_key("C-t",		cmd_tab_new);
367 	global_set_key("M-<prior>",	cmd_tab_previous);
368 	global_set_key("M-<next>",	cmd_tab_next);
369 
370 	global_set_key("M-<left>",	cmd_previous_page);
371 	global_set_key("M-<right>",	cmd_next_page);
372 
373 	global_set_key("<f5>",		cmd_reload_page);
374 	global_set_key("r",		cmd_reload_page);
375 
376 	/* "ncurses standard" */
377 	global_set_key("C-l",		cmd_redraw);
378 
379 	/* global */
380 	global_set_key("<f1>",		cmd_toggle_help);
381 	global_set_key("C-m",		cmd_push_button);
382 	global_set_key("M-enter",	cmd_push_button_new_tab);
383 	global_set_key("M-tab",		cmd_previous_button);
384 	global_set_key("backtab",	cmd_previous_button);
385 	global_set_key("tab",		cmd_next_button);
386 	global_set_key("M-t",		cmd_tab_select);
387 	global_set_key("[",		cmd_tab_previous);
388 	global_set_key("]",		cmd_tab_next);
389 	global_set_key("M-[",		cmd_tab_move_to);
390 	global_set_key("M-]",		cmd_tab_move);
391 	global_set_key("M-l",		cmd_link_select);
392 	global_set_key("M-/",		cmd_swiper);
393 	global_set_key("t",		cmd_toc);
394 
395 	/* === minibuffer map === */
396 	minibuffer_set_key("ret",		cmd_mini_complete_and_exit);
397 	minibuffer_set_key("C-g",		cmd_mini_abort);
398 	minibuffer_set_key("esc",		cmd_mini_abort);
399 	minibuffer_set_key("C-d",		cmd_mini_delete_char);
400 	minibuffer_set_key("del",		cmd_mini_delete_backward_char);
401 	minibuffer_set_key("backspace",		cmd_mini_delete_backward_char);
402 	minibuffer_set_key("C-h",		cmd_mini_delete_backward_char);
403 
404 	minibuffer_set_key("C-b",		cmd_backward_char);
405 	minibuffer_set_key("C-f",		cmd_forward_char);
406 	minibuffer_set_key("<left>",		cmd_backward_char);
407 	minibuffer_set_key("<right>",		cmd_forward_char);
408 	minibuffer_set_key("C-e",		cmd_move_end_of_line);
409 	minibuffer_set_key("C-a",		cmd_move_beginning_of_line);
410 	minibuffer_set_key("<end>",		cmd_move_end_of_line);
411 	minibuffer_set_key("<home>",		cmd_move_beginning_of_line);
412 	minibuffer_set_key("C-k",		cmd_mini_kill_line);
413 
414 	minibuffer_set_key("M-p",		cmd_mini_previous_history_element);
415 	minibuffer_set_key("M-n",		cmd_mini_next_history_element);
416 
417 	minibuffer_set_key("C-p",		cmd_previous_completion);
418 	minibuffer_set_key("C-n",		cmd_next_completion);
419 	minibuffer_set_key("<up>",		cmd_previous_completion);
420 	minibuffer_set_key("<down>",		cmd_next_completion);
421 
422 	minibuffer_set_key("C-v",		cmd_mini_scroll_down);
423 	minibuffer_set_key("M-v",		cmd_mini_scroll_up);
424 	minibuffer_set_key("<next>",		cmd_mini_scroll_down);
425 	minibuffer_set_key("<prior>",		cmd_mini_scroll_up);
426 
427 	minibuffer_set_key("M-<",		cmd_mini_goto_beginning);
428 	minibuffer_set_key("M->",		cmd_mini_goto_end);
429 
430 	minibuffer_set_key("tab",		cmd_insert_current_candidate);
431 }
432 
433 void
434 config_init(void)
435 {
436 	struct line_face *f;
437 	size_t i, len;
438 
439 	len = sizeof(line_faces)/sizeof(line_faces[0]);
440 	for (i = 0; i < len; ++i) {
441 		f = &line_faces[i];
442 
443 		f->prfx_bg = f->bg = f->trail_bg = -1;
444 		f->prfx_fg = f->fg = f->trail_fg = -1;
445 	}
446 
447 	line_faces[LINE_LINK].fg = COLOR_BLUE;
448 	line_faces[LINE_PATCH_ADD].fg = COLOR_GREEN;
449 	line_faces[LINE_PATCH_DEL].fg = COLOR_RED;
450 
451 	load_default_keys();
452 }
453 
454 int
455 config_setprfx(const char *name, const char *prfx, const char *cont)
456 {
457 	struct lineprefix *p;
458 	struct mapping *m;
459 
460 	if (!has_prefix(name, "line."))
461 		return 0;
462 	name += 5;
463 
464 	if ((m = mapping_by_name(name)) == NULL)
465 		return 0;
466 
467 	p = &line_prefixes[m->linetype];
468 	p->prfx1 = prfx;
469 	p->prfx2 = cont;
470 
471 	return 1;
472 }
473 
474 int
475 config_setvari(const char *var, int val)
476 {
477 	if (!strcmp(var, "fill-column")) {
478 		if ((fill_column = val) <= 0)
479 			fill_column = INT_MAX;
480 	} else if (!strcmp(var, "olivetti-mode")) {
481 		olivetti_mode = !!val;
482 	} else if (!strcmp(var, "enable-colors")) {
483 		enable_colors = !!val;
484 	} else if (!strcmp(var, "hide-pre-context")) {
485 		hide_pre_context = !!val;
486 	} else if (!strcmp(var, "hide-pre-blocks")) {
487 		hide_pre_blocks = !!val;
488 	} else if (!strcmp(var, "hide-pre-closing-line")) {
489 		hide_pre_closing_line = !!val;
490 	} else if (!strcmp(var, "dont-wrap-pre")) {
491 		dont_wrap_pre = !!val;
492 	} else if (!strcmp(var, "emojify-link")) {
493 		emojify_link = !!val;
494 	} else if (!strcmp(var, "set-title")) {
495 		set_title = !!val;
496 	} else if (!strcmp(var, "autosave")) {
497 		autosave = val;
498 	} else {
499 		return 0;
500 	}
501 
502 	return 1;
503 }
504 
505 int
506 config_setvars(const char *var, char *val)
507 {
508 	if (!strcmp(var, "new-tab-url")) {
509 		if (new_tab_url != NULL)
510 			free(new_tab_url);
511 		new_tab_url = val;
512 	} else
513 		return 0;
514 	return 1;
515 }
516 
517 int
518 config_setcolor(int bg, const char *name, int prfx, int line, int trail)
519 {
520         struct mapping *m;
521 	struct line_face *f;
522 
523 	if (!strcmp(name, "tabline")) {
524 		if (bg)
525 			tab_face.bg_bg = prfx;
526 		else
527 			tab_face.bg_fg = prfx;
528 	} else if (has_prefix(name, "tabline.")) {
529 		name += 8;
530 
531 		if (!strcmp(name, "tab")) {
532 			if (bg)
533 				tab_face.t_bg = prfx;
534 			else
535 				tab_face.t_fg = prfx;
536 		} else if (!strcmp(name, "current")) {
537 			if (bg)
538 				tab_face.c_bg = prfx;
539 			else
540 				tab_face.c_fg = prfx;
541 		} else
542 			return 0;
543 	} else if (has_prefix(name, "line.")) {
544 		name += 5;
545 
546 		if ((m = mapping_by_name(name)) == NULL)
547 			return 0;
548 
549 		f = &line_faces[m->linetype];
550 
551 		if (bg) {
552 			f->prfx_bg = prfx;
553 			f->bg = line;
554 			f->trail_bg = trail;
555 		} else {
556 			f->prfx_fg = prfx;
557 			f->fg = line;
558 			f->trail_fg = trail;
559 		}
560 	} else if (!strcmp(name, "line")) {
561 		if (bg) {
562 			body_face.lbg = prfx;
563 			body_face.bg  = line;
564 			body_face.rbg = trail;
565 		} else {
566 			body_face.lfg = prfx;
567 			body_face.fg = line;
568 			body_face.rfg = trail;
569 		}
570 	} else if (!strcmp(name, "minibuffer")) {
571 		if (bg)
572 			minibuffer_face.bg = prfx;
573 		else
574 			minibuffer_face.fg = prfx;
575 	} else if (!strcmp(name, "modeline")) {
576 		if (bg)
577 			modeline_face.bg = prfx;
578 		else
579 			modeline_face.fg = prfx;
580 	} else {
581 		return 0;
582 	}
583 
584 	return 1;
585 }
586 
587 int
588 config_setattr(const char *name, int prfx, int line, int trail)
589 {
590 	struct mapping *m;
591 	struct line_face *f;
592 
593 	if (!strcmp(name, "tabline")) {
594 		tab_face.bg_attr = prfx;
595 	} else if (has_prefix(name, "tabline.")) {
596 		name += 8;
597 
598 		if (!strcmp(name, "tab"))
599 			tab_face.t_attr = prfx;
600 		else if (!strcmp(name, "current"))
601 			tab_face.c_attr = prfx;
602 		else
603 			return 0;
604 	} else if (has_prefix(name, "line.")) {
605 		name += 5;
606 
607 		if ((m = mapping_by_name(name)) == NULL)
608 			return 0;
609 
610 		f = &line_faces[m->linetype];
611 
612 		f->prfx_attr = prfx;
613 		f->attr = line;
614 		f->trail_attr = trail;
615 	} else if (!strcmp(name, "minibuffer")) {
616 		minibuffer_face.attr = prfx;
617 	} else if (!strcmp(name, "modeline")) {
618 		modeline_face.attr = prfx;
619 	} else {
620 		return 0;
621 	}
622 
623 	return 1;
624 }
625 
626 static inline void
627 tl_init_pair(int colors, int pair, int f, int b)
628 {
629 	if (f >= colors || !enable_colors)
630 		f = -1;
631 	if (b >= colors || !enable_colors)
632 		b = -1;
633 	init_pair(pair, f, b);
634 }
635 
636 void
637 config_apply_style(void)
638 {
639 	size_t i, colors, len;
640 	struct line_face *f;
641 
642 	colors = COLORS;
643 
644 	len = sizeof(line_faces)/sizeof(line_faces[0]);
645 	for (i = 0; i < len; ++i) {
646 		f = &line_faces[i];
647 
648 		tl_init_pair(colors, f->prfx_pair, f->prfx_fg, f->prfx_bg);
649 		f->prefix = COLOR_PAIR(f->prfx_pair) | f->prfx_attr;
650 
651 		tl_init_pair(colors, f->pair, f->fg, f->bg);
652 		f->text = COLOR_PAIR(f->pair) | f->attr;
653 
654 		tl_init_pair(colors, f->trail_pair, f->trail_fg, f->trail_bg);
655 		f->trail = COLOR_PAIR(f->trail_pair) | f->trail_attr;
656 	}
657 
658 	/* tab line */
659 	tl_init_pair(colors, PTL_BG, tab_face.bg_fg, tab_face.bg_bg);
660 	tab_face.background = COLOR_PAIR(PTL_BG) | tab_face.bg_attr;
661 
662 	tl_init_pair(colors, PTL_TAB, tab_face.t_fg, tab_face.t_bg);
663 	tab_face.tab = COLOR_PAIR(PTL_TAB) | tab_face.t_attr;
664 
665 	tl_init_pair(colors, PTL_CURR, tab_face.c_fg, tab_face.c_bg);
666 	tab_face.current = COLOR_PAIR(PTL_CURR) | tab_face.c_attr;
667 
668 	/* body */
669 	tl_init_pair(colors, PBODY, body_face.fg, body_face.bg);
670 	body_face.body = COLOR_PAIR(PBODY);
671 
672 	tl_init_pair(colors, PBLEFT, body_face.lfg, body_face.lbg);
673 	body_face.left = COLOR_PAIR(PBLEFT);
674 
675 	tl_init_pair(colors, PBRIGHT, body_face.rfg, body_face.rbg);
676 	body_face.right = COLOR_PAIR(PBRIGHT);
677 
678 	/* modeline */
679 	tl_init_pair(colors, PMODELINE, modeline_face.fg, modeline_face.bg);
680 	modeline_face.background = COLOR_PAIR(PMODELINE) | modeline_face.attr;
681 
682 	/* minibuffer */
683 	tl_init_pair(colors, PMINIBUF, minibuffer_face.fg, minibuffer_face.bg);
684 	minibuffer_face.background = COLOR_PAIR(PMINIBUF) | minibuffer_face.attr;
685 
686 }