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Date:: Wed Jan 5 15:23:12 2022 UTC
Message:: add a maximum (undocumented) value as safety net
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	*download_path = NULL;
30 char	*new_tab_url = NULL;
31 
32 int autosave = 20;
33 int dont_wrap_pre = 0;
34 int emojify_link = 1;
35 int enable_colors = 1;
36 int fill_column = 120;
37 int hide_pre_blocks = 0;
38 int hide_pre_closing_line = 0;
39 int hide_pre_context = 0;
40 int max_killed_tabs = 10;
41 int olivetti_mode = 1;
42 int set_title = 1;
43 int tab_bar_show = 1;
44 
45 struct lineprefix line_prefixes[] = {
46 	[LINE_TEXT] =		{ "",		"" },
47 	[LINE_LINK] =		{ "→ ",	"  " },
48 	[LINE_TITLE_1] =	{ "# ",		"  " },
49 	[LINE_TITLE_2] =	{ "## ",	"   " },
50 	[LINE_TITLE_3] =	{ "### ",	"    " },
51 	[LINE_ITEM] =		{ " • ",	"   " },
52 	[LINE_QUOTE] =		{ " ┃ ",	" ┃ " },
53 	[LINE_PRE_START] =	{ "─── ",	"    " },
54 	[LINE_PRE_CONTENT] =	{ "",		"" },
55 	[LINE_PRE_END] =	{ "─── ",	"" },
56 
57 	[LINE_PATCH] =		{"", ""},
58 	[LINE_PATCH_HDR] =	{"", ""},
59 	[LINE_PATCH_HUNK_HDR] =	{"", ""},
60 	[LINE_PATCH_ADD] =	{"", ""},
61 	[LINE_PATCH_DEL] =	{"", ""},
62 
63 	[LINE_COMPL] =		{"", ""},
64 	[LINE_COMPL_CURRENT] =	{"", ""},
65 
66 	[LINE_HELP] =		{"", ""},
67 
68 	[LINE_DOWNLOAD] =	{" Fetching ", "          "},
69 	[LINE_DOWNLOAD_DONE] =	{" Done     ", "          "},
70 	[LINE_DOWNLOAD_INFO] =	{" ", " "},
71 };
72 
73 struct line_face line_faces[] = {
74 	[LINE_TEXT] =		{
75 		.prfx_pair = PT_PRFX,
76 		.pair = PT,
77 		.trail_pair = PT_TRAIL,
78 	},
79 	[LINE_LINK] =		{
80 		.prfx_pair = PL_PRFX,
81 		.pair = PL,
82 		.trail_pair = PL_TRAIL,
83 		.attr = A_UNDERLINE,
84 	},
85 	[LINE_TITLE_1] =	{
86 		.prfx_pair = PT1_PRFX,
87 		.pair = PT1,
88 		.trail_pair = PT1_TRAIL,
89 		.attr = A_BOLD,
90 	},
91 	[LINE_TITLE_2] =	{
92 		.prfx_pair = PT2_PRFX,
93 		.pair = PT2,
94 		.trail_pair = PT2_TRAIL,
95 		.attr = A_BOLD,
96 	},
97 	[LINE_TITLE_3] =	{
98 		.prfx_pair = PT3_PRFX,
99 		.pair = PT3,
100 		.trail_pair = PT3_TRAIL,
101 		.attr = A_BOLD,
102 	},
103 	[LINE_ITEM] =		{
104 		.prfx_pair = PI_PRFX,
105 		.pair = PI,
106 		.trail_pair = PI_TRAIL,
107 	},
108 	[LINE_QUOTE] =		{
109 		.prfx_pair = PQ_PRFX,
110 		.pair = PQ,
111 		.trail_pair = PQ_TRAIL,
112 		.attr = A_DIM,
113 	},
114 	[LINE_PRE_START] =	{
115 		.prfx_pair = PPSTART_PRFX,
116 		.pair = PPSTART,
117 		.trail_pair = PPSTART_TRAIL,
118 	},
119 	[LINE_PRE_CONTENT] =	{
120 		.prfx_pair = PP_PRFX,
121 		.pair = PP,
122 		.trail_pair = PP_TRAIL,
123 	},
124 	[LINE_PRE_END] =	{
125 		.prfx_pair = PPEND_PRFX,
126 		.pair = PPEND,
127 		.trail_pair = PPEND_TRAIL,
128 	},
129 
130 	/* text/x-patch */
131 	[LINE_PATCH] = {
132 		.prfx_pair = PPATCH_PRFX,
133 		.pair = PPATCH,
134 		.trail_pair = PPATCH_TRAIL,
135 	},
136 	[LINE_PATCH_HDR] = {
137 		.prfx_pair = PPATCH_HDR_PRFX,
138 		.pair = PPATCH_HDR,
139 		.trail_pair = PPATCH_HDR_TRAIL,
140 	},
141 	[LINE_PATCH_HUNK_HDR] = {
142 		.prfx_pair = PPATCH_HUNK_HDR_PRFX,
143 		.pair = PPATCH_HUNK_HDR,
144 		.trail_pair = PPATCH_HUNK_HDR_TRAIL,
145 	},
146 	[LINE_PATCH_ADD] = {
147 		.prfx_pair = PPATCH_ADD_PRFX,
148 		.pair = PPATCH_ADD,
149 		.trail_pair = PPATCH_ADD_TRAIL,
150 	},
151 	[LINE_PATCH_DEL] = {
152 		.prfx_pair = PPATCH_DEL_PRFX,
153 		.pair = PPATCH_DEL,
154 		.trail_pair = PPATCH_DEL_TRAIL,
155 	},
156 
157 	/* minibuffer */
158 	[LINE_COMPL] = {
159 		.prfx_pair = PCOMPL_PRFX,
160 		.pair = PCOMPL,
161 		.trail_pair = PCOMPL_TRAIL,
162 	},
163 	[LINE_COMPL_CURRENT] = {
164 		.prfx_pair = PCOMPL_CURR_PRFX,
165 		.pair = PCOMPL_CURR,
166 		.trail_pair = PCOMPL_CURR_TRAIL,
167 		.attr = A_REVERSE,
168 		.trail_attr = A_REVERSE,
169 	},
170 
171 	/* help */
172 	[LINE_HELP] = {
173 		.prfx_pair = PHELP_PRFX,
174 		.pair = PHELP,
175 		.trail_pair = PHELP_TRAIL,
176 	},
177 
178 	/* download */
179 	[LINE_DOWNLOAD] = {
180 		.prfx_pair = PDOWNLOAD_PRFX,
181 		.pair = PDOWNLOAD,
182 		.trail_pair = PDOWNLOAD_TRAIL
183 	},
184 	[LINE_DOWNLOAD_DONE] = {
185 		.prfx_pair = PDOWNLOAD_DONE_PRFX,
186 		.pair = PDOWNLOAD_DONE,
187 		.trail_pair = PDOWNLOAD_DONE_TRAIL
188 	},
189 	[LINE_DOWNLOAD_INFO] = {
190 		.prfx_pair = PDOWNLOAD_INFO_PRFX,
191 		.pair = PDOWNLOAD_INFO,
192 		.trail_pair = PDOWNLOAD_INFO_TRAIL
193 	},
194 };
195 
196 struct tab_face tab_face = {
197 	.bg_attr = A_REVERSE, .bg_bg = -1, .bg_fg = -1,
198 	.t_attr  = A_REVERSE, .t_bg  = -1, .t_fg  = -1,
199 	.c_attr  = A_NORMAL,  .c_bg  = -1, .c_fg  = -1,
200 
201 	/*
202 	 * set these so that even when enable-color=0 the bar has some
203 	 * sane defaults.
204 	 */
205 	.background =	A_REVERSE,
206 	.tab =		A_REVERSE,
207 	.current =	A_NORMAL,
208 };
209 
210 struct body_face body_face = {
211 	.lbg = -1, .lfg = -1,
212 	.bg  = -1, .fg  = -1,
213 	.rbg = -1, .rfg = -1,
214 };
215 
216 struct download_face download_face = {
217 	.bg = -1,
218 	.fg = -1,
219 	.attr = A_NORMAL,
220 };
221 
222 struct modeline_face modeline_face = {
223 	.bg  = -1,
224 	.fg  = -1,
225 	.attr = A_REVERSE,
226 };
227 
228 struct minibuffer_face minibuffer_face = {
229 	.bg = -1,
230 	.fg = -1,
231 	.attr = A_NORMAL,
232 };
233 
234 struct mapping {
235 	const char	*label;
236 	int		 linetype;
237 } mappings[] = {
238 	{"text",	LINE_TEXT},
239 	{"link",	LINE_LINK},
240 	{"title1",	LINE_TITLE_1},
241 	{"title2",	LINE_TITLE_2},
242 	{"title3",	LINE_TITLE_3},
243 	{"item",	LINE_ITEM},
244 	{"quote",	LINE_QUOTE},
245 	{"pre.start",	LINE_PRE_START},
246 	{"pre",		LINE_PRE_CONTENT},
247 	{"pre.end",	LINE_PRE_END},
248 
249 	/* text/x-patch */
250 	{"patch",	LINE_PATCH},
251 	{"patch.hdr",	LINE_PATCH_HDR},
252 	{"patch.hunk",	LINE_PATCH_HUNK_HDR},
253 	{"patch.add",	LINE_PATCH_ADD},
254 	{"patch.del",	LINE_PATCH_DEL},
255 
256 	/* minibuffer */
257 	{"compl",	LINE_COMPL},
258 	{"compl.current", LINE_COMPL_CURRENT},
259 
260 	/* help */
261 	{"help",	LINE_HELP},
262 
263 	/* download */
264 	{"download.ongoing",	LINE_DOWNLOAD},
265 	{"download.done",	LINE_DOWNLOAD_DONE},
266 	{"download.info",	LINE_DOWNLOAD_INFO},
267 };
268 
269 static struct mapping *
270 mapping_by_name(const char *name)
271 {
272 	size_t i;
273 
274 	for (i = 0; i < sizeof(mappings)/sizeof(mappings[0]); ++i) {
275 		if (!strcmp(name, mappings[i].label))
276 			return &mappings[i];
277 	}
278 
279 	return NULL;
280 }
281 
282 static inline void
283 global_set_key(const char *key, void (*fn)(struct buffer*))
284 {
285 	if (!kmap_define_key(&global_map, key, fn))
286 		_exit(1);
287 }
288 
289 static inline void
290 minibuffer_set_key(const char *key, void (*fn)(struct buffer*))
291 {
292 	if (!kmap_define_key(&minibuffer_map, key, fn))
293 		_exit(1);
294 }
295 
296 static void
297 load_default_keys(void)
298 {
299 	/* === global map === */
300 
301 	/* emacs */
302 	global_set_key("C-p",		cmd_previous_line);
303 	global_set_key("C-n",		cmd_next_line);
304 	global_set_key("C-f",		cmd_forward_char);
305 	global_set_key("C-b",		cmd_backward_char);
306 	global_set_key("M-{",		cmd_backward_paragraph);
307 	global_set_key("M-}",		cmd_forward_paragraph);
308 	global_set_key("C-a",		cmd_move_beginning_of_line);
309 	global_set_key("C-e",		cmd_move_end_of_line);
310 
311 	global_set_key("M-v",		cmd_scroll_up);
312 	global_set_key("C-v",		cmd_scroll_down);
313 	global_set_key("M-space",	cmd_scroll_up);
314 	global_set_key("space",		cmd_scroll_down);
315 
316 	global_set_key("M-<",		cmd_beginning_of_buffer);
317 	global_set_key("M->",		cmd_end_of_buffer);
318 
319 	global_set_key("C-x C-c",	cmd_kill_telescope);
320 
321 	global_set_key("C-g",		cmd_clear_minibuf);
322 
323 	global_set_key("M-x",		cmd_execute_extended_command);
324 
325 	global_set_key("C-c {",		cmd_dec_fill_column);
326 	global_set_key("C-c }",		cmd_inc_fill_column);
327 
328 	global_set_key("C-c p",		cmd_previous_heading);
329 	global_set_key("C-c n",		cmd_next_heading);
330 
331 	global_set_key(">",		cmd_load_url);
332 	global_set_key("<",		cmd_load_current_url);
333 	global_set_key("C-x C-f",	cmd_load_url);
334 	global_set_key("C-x M-f",	cmd_load_current_url);
335 
336 	global_set_key("C-x o",		cmd_other_window);
337 
338 	global_set_key("C-x t 0",	cmd_tab_close);
339 	global_set_key("C-x t 1",	cmd_tab_close_other);
340 	global_set_key("C-x t 2",	cmd_tab_new);
341 	global_set_key("C-x t o",	cmd_tab_next);
342 	global_set_key("C-x t O",	cmd_tab_previous);
343 	global_set_key("C-x t m",	cmd_tab_move);
344 	global_set_key("C-x t M",	cmd_tab_move_to);
345 
346 	global_set_key("B",		cmd_previous_page);
347 	global_set_key("C-M-b",		cmd_previous_page);
348 	global_set_key("F",		cmd_next_page);
349 	global_set_key("C-M-f",		cmd_next_page);
350 
351 	global_set_key("<f7> a",	cmd_bookmark_page);
352 	global_set_key("<f7> <f7>",	cmd_list_bookmarks);
353 
354 	global_set_key("C-z",		cmd_suspend_telescope);
355 
356 	/* vi/vi-like */
357 	global_set_key("k",		cmd_previous_line);
358 	global_set_key("j",		cmd_next_line);
359 	global_set_key("l",		cmd_forward_char);
360 	global_set_key("h",		cmd_backward_char);
361 	global_set_key("{",		cmd_backward_paragraph);
362 	global_set_key("}",		cmd_forward_paragraph);
363 	global_set_key("^",		cmd_move_beginning_of_line);
364 	global_set_key("$",		cmd_move_end_of_line);
365 
366 	global_set_key("K",		cmd_scroll_line_up);
367 	global_set_key("J",		cmd_scroll_line_down);
368 
369 	global_set_key("g g",		cmd_beginning_of_buffer);
370 	global_set_key("G",		cmd_end_of_buffer);
371 
372 	global_set_key("g D",		cmd_tab_close);
373 	global_set_key("g N",		cmd_tab_new);
374 	global_set_key("g t",		cmd_tab_next);
375 	global_set_key("g T",		cmd_tab_previous);
376 	global_set_key("g M-t",		cmd_tab_move);
377 	global_set_key("g M-T",		cmd_tab_move_to);
378 
379 	global_set_key("H",		cmd_previous_page);
380 	global_set_key("L",		cmd_next_page);
381 
382 	global_set_key("u",		cmd_tab_undo_close);
383 
384 	/* tmp */
385 	global_set_key("q",		cmd_kill_telescope);
386 
387 	global_set_key("esc",		cmd_clear_minibuf);
388 
389 	global_set_key(":",		cmd_execute_extended_command);
390 
391 	/* cua */
392 	global_set_key("<up>",		cmd_previous_line);
393 	global_set_key("<down>",	cmd_next_line);
394 	global_set_key("<right>",	cmd_forward_char);
395 	global_set_key("<left>",	cmd_backward_char);
396 	global_set_key("<home>",	cmd_move_beginning_of_line);
397 	global_set_key("<end>",		cmd_move_end_of_line);
398 	global_set_key("<prior>",	cmd_scroll_up);
399 	global_set_key("<next>",	cmd_scroll_down);
400 
401 	global_set_key("C-w",		cmd_tab_close);
402 	global_set_key("C-t",		cmd_tab_new);
403 	global_set_key("M-<prior>",	cmd_tab_previous);
404 	global_set_key("M-<next>",	cmd_tab_next);
405 
406 	global_set_key("del",		cmd_previous_page);
407 	global_set_key("M-<left>",	cmd_previous_page);
408 	global_set_key("M-<right>",	cmd_next_page);
409 
410 	global_set_key("<f5>",		cmd_reload_page);
411 	global_set_key("r",		cmd_reload_page);
412 
413 	/* "ncurses standard" */
414 	global_set_key("C-l",		cmd_redraw);
415 
416 	/* global */
417 	global_set_key("<f1>",		cmd_toggle_help);
418 	global_set_key("<f2>",		cmd_toggle_downloads);
419 	global_set_key("C-m",		cmd_push_button);
420 	global_set_key("M-enter",	cmd_push_button_new_tab);
421 	global_set_key("M-tab",		cmd_previous_button);
422 	global_set_key("backtab",	cmd_previous_button);
423 	global_set_key("tab",		cmd_next_button);
424 	global_set_key("M-t",		cmd_tab_select);
425 	global_set_key("[",		cmd_tab_previous);
426 	global_set_key("]",		cmd_tab_next);
427 	global_set_key("M-[",		cmd_tab_move_to);
428 	global_set_key("M-]",		cmd_tab_move);
429 	global_set_key("M-l",		cmd_link_select);
430 	global_set_key("M-/",		cmd_swiper);
431 	global_set_key("t",		cmd_toc);
432 
433 	/* === minibuffer map === */
434 	minibuffer_set_key("ret",		cmd_mini_complete_and_exit);
435 	minibuffer_set_key("C-g",		cmd_mini_abort);
436 	minibuffer_set_key("esc",		cmd_mini_abort);
437 	minibuffer_set_key("C-d",		cmd_mini_delete_char);
438 	minibuffer_set_key("del",		cmd_mini_delete_backward_char);
439 	minibuffer_set_key("backspace",		cmd_mini_delete_backward_char);
440 	minibuffer_set_key("C-h",		cmd_mini_delete_backward_char);
441 
442 	minibuffer_set_key("C-b",		cmd_backward_char);
443 	minibuffer_set_key("C-f",		cmd_forward_char);
444 	minibuffer_set_key("<left>",		cmd_backward_char);
445 	minibuffer_set_key("<right>",		cmd_forward_char);
446 	minibuffer_set_key("C-e",		cmd_move_end_of_line);
447 	minibuffer_set_key("C-a",		cmd_move_beginning_of_line);
448 	minibuffer_set_key("<end>",		cmd_move_end_of_line);
449 	minibuffer_set_key("<home>",		cmd_move_beginning_of_line);
450 	minibuffer_set_key("C-k",		cmd_mini_kill_line);
451 
452 	minibuffer_set_key("M-p",		cmd_mini_previous_history_element);
453 	minibuffer_set_key("M-n",		cmd_mini_next_history_element);
454 
455 	minibuffer_set_key("C-p",		cmd_previous_completion);
456 	minibuffer_set_key("C-n",		cmd_next_completion);
457 	minibuffer_set_key("<up>",		cmd_previous_completion);
458 	minibuffer_set_key("<down>",		cmd_next_completion);
459 
460 	minibuffer_set_key("C-v",		cmd_mini_scroll_down);
461 	minibuffer_set_key("M-v",		cmd_mini_scroll_up);
462 	minibuffer_set_key("<next>",		cmd_mini_scroll_down);
463 	minibuffer_set_key("<prior>",		cmd_mini_scroll_up);
464 
465 	minibuffer_set_key("M-<",		cmd_mini_goto_beginning);
466 	minibuffer_set_key("M->",		cmd_mini_goto_end);
467 
468 	minibuffer_set_key("tab",		cmd_insert_current_candidate);
469 }
470 
471 void
472 config_init(void)
473 {
474 	struct line_face *f;
475 	size_t i, len;
476 
477 	len = sizeof(line_faces)/sizeof(line_faces[0]);
478 	for (i = 0; i < len; ++i) {
479 		f = &line_faces[i];
480 
481 		f->prfx_bg = f->bg = f->trail_bg = -1;
482 		f->prfx_fg = f->fg = f->trail_fg = -1;
483 	}
484 
485 	line_faces[LINE_LINK].fg = COLOR_BLUE;
486 	line_faces[LINE_PATCH_ADD].fg = COLOR_GREEN;
487 	line_faces[LINE_PATCH_DEL].fg = COLOR_RED;
488 
489 	load_default_keys();
490 }
491 
492 int
493 config_setprfx(const char *name, const char *prfx, const char *cont)
494 {
495 	struct lineprefix *p;
496 	struct mapping *m;
497 
498 	if (!has_prefix(name, "line."))
499 		return 0;
500 	name += 5;
501 
502 	if ((m = mapping_by_name(name)) == NULL)
503 		return 0;
504 
505 	p = &line_prefixes[m->linetype];
506 	p->prfx1 = prfx;
507 	p->prfx2 = cont;
508 
509 	return 1;
510 }
511 
512 int
513 config_setvari(const char *var, int val)
514 {
515 	if (!strcmp(var, "fill-column")) {
516 		if ((fill_column = val) <= 0)
517 			fill_column = INT_MAX;
518 	} else if (!strcmp(var, "olivetti-mode")) {
519 		olivetti_mode = !!val;
520 	} else if (!strcmp(var, "enable-colors")) {
521 		enable_colors = !!val;
522 	} else if (!strcmp(var, "hide-pre-context")) {
523 		hide_pre_context = !!val;
524 	} else if (!strcmp(var, "hide-pre-blocks")) {
525 		hide_pre_blocks = !!val;
526 	} else if (!strcmp(var, "hide-pre-closing-line")) {
527 		hide_pre_closing_line = !!val;
528 	} else if (!strcmp(var, "dont-wrap-pre")) {
529 		dont_wrap_pre = !!val;
530 	} else if (!strcmp(var, "emojify-link")) {
531 		emojify_link = !!val;
532 	} else if (!strcmp(var, "update-title") || !strcmp(var, "set-title")) {
533 		set_title = !!val;
534 	} else if (!strcmp(var, "autosave")) {
535 		autosave = val;
536 	} else if (!strcmp(var, "tab-bar-show")) {
537 		if (val < 0)
538 			tab_bar_show = -1;
539 		else if (val == 0)
540 			tab_bar_show = 0;
541 		else
542 			tab_bar_show = 1;
543 	} else if (!strcmp(var, "max-killed-tabs")) {
544 		if (val >= 0)
545 			max_killed_tabs = MIN(val, 128);
546 	} else {
547 		return 0;
548 	}
549 
550 	return 1;
551 }
552 
553 int
554 config_setvars(const char *var, char *val)
555 {
556 	if (!strcmp(var, "download-path")) {
557 		const char *prfx = "", *v = val, *sufx = "";
558 
559 		if (has_prefix(val, "~/") &&
560 		    v++ &&
561 		    (prfx = getenv("HOME")) == NULL)
562 			return 0;
563 
564 		if (!has_suffix(val, "/"))
565 			sufx = "/";
566 
567 		free(download_path);
568 		if (asprintf(&download_path, "%s%s%s", prfx, v, sufx) == -1) {
569 			download_path = NULL;
570 			return 0;
571 		}
572 
573 		free(val);
574 		return 1;
575 	} else if (!strcmp(var, "new-tab-url")) {
576 		free(new_tab_url);
577 		new_tab_url = val;
578 	} else
579 		return 0;
580 	return 1;
581 }
582 
583 int
584 config_setcolor(int bg, const char *name, int prfx, int line, int trail)
585 {
586 	struct mapping *m;
587 	struct line_face *f;
588 
589 	if (!strcmp(name, "tabline")) {
590 		if (bg)
591 			tab_face.bg_bg = prfx;
592 		else
593 			tab_face.bg_fg = prfx;
594 	} else if (has_prefix(name, "tabline.")) {
595 		name += 8;
596 
597 		if (!strcmp(name, "tab")) {
598 			if (bg)
599 				tab_face.t_bg = prfx;
600 			else
601 				tab_face.t_fg = prfx;
602 		} else if (!strcmp(name, "current")) {
603 			if (bg)
604 				tab_face.c_bg = prfx;
605 			else
606 				tab_face.c_fg = prfx;
607 		} else
608 			return 0;
609 	} else if (has_prefix(name, "line.")) {
610 		name += 5;
611 
612 		if ((m = mapping_by_name(name)) == NULL)
613 			return 0;
614 
615 		f = &line_faces[m->linetype];
616 
617 		if (bg) {
618 			f->prfx_bg = prfx;
619 			f->bg = line;
620 			f->trail_bg = trail;
621 		} else {
622 			f->prfx_fg = prfx;
623 			f->fg = line;
624 			f->trail_fg = trail;
625 		}
626 	} else if (!strcmp(name, "line")) {
627 		if (bg) {
628 			body_face.lbg = prfx;
629 			body_face.bg  = line;
630 			body_face.rbg = trail;
631 		} else {
632 			body_face.lfg = prfx;
633 			body_face.fg = line;
634 			body_face.rfg = trail;
635 		}
636 	} else if (!strcmp(name, "download")) {
637 		if (bg)
638 			download_face.bg = prfx;
639 		else
640 			download_face.fg = prfx;
641 	} else if (!strcmp(name, "minibuffer")) {
642 		if (bg)
643 			minibuffer_face.bg = prfx;
644 		else
645 			minibuffer_face.fg = prfx;
646 	} else if (!strcmp(name, "modeline")) {
647 		if (bg)
648 			modeline_face.bg = prfx;
649 		else
650 			modeline_face.fg = prfx;
651 	} else {
652 		return 0;
653 	}
654 
655 	return 1;
656 }
657 
658 int
659 config_setattr(const char *name, int prfx, int line, int trail)
660 {
661 	struct mapping *m;
662 	struct line_face *f;
663 
664 	if (!strcmp(name, "tabline")) {
665 		tab_face.bg_attr = prfx;
666 	} else if (has_prefix(name, "tabline.")) {
667 		name += 8;
668 
669 		if (!strcmp(name, "tab"))
670 			tab_face.t_attr = prfx;
671 		else if (!strcmp(name, "current"))
672 			tab_face.c_attr = prfx;
673 		else
674 			return 0;
675 	} else if (has_prefix(name, "line.")) {
676 		name += 5;
677 
678 		if ((m = mapping_by_name(name)) == NULL)
679 			return 0;
680 
681 		f = &line_faces[m->linetype];
682 
683 		f->prfx_attr = prfx;
684 		f->attr = line;
685 		f->trail_attr = trail;
686 	} else if (!strcmp(name, "download")) {
687 		download_face.attr = prfx;
688 	} else if (!strcmp(name, "minibuffer")) {
689 		minibuffer_face.attr = prfx;
690 	} else if (!strcmp(name, "modeline")) {
691 		modeline_face.attr = prfx;
692 	} else {
693 		return 0;
694 	}
695 
696 	return 1;
697 }
698 
699 static inline void
700 tl_init_pair(int colors, int pair, int f, int b)
701 {
702 	if (f >= colors || !enable_colors)
703 		f = -1;
704 	if (b >= colors || !enable_colors)
705 		b = -1;
706 	init_pair(pair, f, b);
707 }
708 
709 void
710 config_apply_style(void)
711 {
712 	size_t i, colors, len;
713 	struct line_face *f;
714 
715 	colors = COLORS;
716 
717 	len = sizeof(line_faces)/sizeof(line_faces[0]);
718 	for (i = 0; i < len; ++i) {
719 		f = &line_faces[i];
720 
721 		tl_init_pair(colors, f->prfx_pair, f->prfx_fg, f->prfx_bg);
722 		f->prefix = COLOR_PAIR(f->prfx_pair) | f->prfx_attr;
723 
724 		tl_init_pair(colors, f->pair, f->fg, f->bg);
725 		f->text = COLOR_PAIR(f->pair) | f->attr;
726 
727 		tl_init_pair(colors, f->trail_pair, f->trail_fg, f->trail_bg);
728 		f->trail = COLOR_PAIR(f->trail_pair) | f->trail_attr;
729 	}
730 
731 	/* tab line */
732 	tl_init_pair(colors, PTL_BG, tab_face.bg_fg, tab_face.bg_bg);
733 	tab_face.background = COLOR_PAIR(PTL_BG) | tab_face.bg_attr;
734 
735 	tl_init_pair(colors, PTL_TAB, tab_face.t_fg, tab_face.t_bg);
736 	tab_face.tab = COLOR_PAIR(PTL_TAB) | tab_face.t_attr;
737 
738 	tl_init_pair(colors, PTL_CURR, tab_face.c_fg, tab_face.c_bg);
739 	tab_face.current = COLOR_PAIR(PTL_CURR) | tab_face.c_attr;
740 
741 	/* body */
742 	tl_init_pair(colors, PBODY, body_face.fg, body_face.bg);
743 	body_face.body = COLOR_PAIR(PBODY);
744 
745 	tl_init_pair(colors, PBLEFT, body_face.lfg, body_face.lbg);
746 	body_face.left = COLOR_PAIR(PBLEFT);
747 
748 	tl_init_pair(colors, PBRIGHT, body_face.rfg, body_face.rbg);
749 	body_face.right = COLOR_PAIR(PBRIGHT);
750 
751 	/* download */
752 	tl_init_pair(colors, PDOWNLOAD_WIN, download_face.fg, download_face.bg);
753 	download_face.background = COLOR_PAIR(PDOWNLOAD_WIN) | download_face.attr;
754 
755 	/* modeline */
756 	tl_init_pair(colors, PMODELINE, modeline_face.fg, modeline_face.bg);
757 	modeline_face.background = COLOR_PAIR(PMODELINE) | modeline_face.attr;
758 
759 	/* minibuffer */
760 	tl_init_pair(colors, PMINIBUF, minibuffer_face.fg, minibuffer_face.bg);
761 	minibuffer_face.background = COLOR_PAIR(PMINIBUF) | minibuffer_face.attr;
762 
763 }