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usr.sbin/makefs: Add -o c|C option to specify comp|check type
[dragonfly.git] / contrib / mdocml / tbl_term.c
blobeac125586c4ddf4b2007ee16d9d027fb1607eb93
1 /* $Id: tbl_term.c,v 1.75 2021/08/10 12:55:04 schwarze Exp $ */
2 /*
3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2011-2021 Ingo Schwarze <schwarze@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18 #include "config.h"
19
20 #include <sys/types.h>
21
22 #include <assert.h>
23 #include <ctype.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27
28 #include "mandoc.h"
29 #include "tbl.h"
30 #include "out.h"
31 #include "term.h"
32
33 #define IS_HORIZ(cp) ((cp)->pos == TBL_CELL_HORIZ || \
34 (cp)->pos == TBL_CELL_DHORIZ)
35
36
37 static size_t term_tbl_len(size_t, void *);
38 static size_t term_tbl_strlen(const char *, void *);
39 static size_t term_tbl_sulen(const struct roffsu *, void *);
40 static void tbl_data(struct termp *, const struct tbl_opts *,
41 const struct tbl_cell *,
42 const struct tbl_dat *,
43 const struct roffcol *);
44 static void tbl_direct_border(struct termp *, int, size_t);
45 static void tbl_fill_border(struct termp *, int, size_t);
46 static void tbl_fill_char(struct termp *, char, size_t);
47 static void tbl_fill_string(struct termp *, const char *, size_t);
48 static void tbl_hrule(struct termp *, const struct tbl_span *,
49 const struct tbl_span *, const struct tbl_span *,
50 int);
51 static void tbl_literal(struct termp *, const struct tbl_dat *,
52 const struct roffcol *);
53 static void tbl_number(struct termp *, const struct tbl_opts *,
54 const struct tbl_dat *,
55 const struct roffcol *);
56 static void tbl_word(struct termp *, const struct tbl_dat *);
57
58
59 /*
60 * The following border-character tables are indexed
61 * by ternary (3-based) numbers, as opposed to binary or decimal.
62 * Each ternary digit describes the line width in one direction:
63 * 0 means no line, 1 single or light line, 2 double or heavy line.
64 */
65
66 /* Positional values of the four directions. */
67 #define BRIGHT 1
68 #define BDOWN 3
69 #define BLEFT (3 * 3)
70 #define BUP (3 * 3 * 3)
71 #define BHORIZ (BLEFT + BRIGHT)
72
73 /* Code points to use for each combination of widths. */
74 static const int borders_utf8[81] = {
75 0x0020, 0x2576, 0x257a, /* 000 right */
76 0x2577, 0x250c, 0x250d, /* 001 down */
77 0x257b, 0x250e, 0x250f, /* 002 */
78 0x2574, 0x2500, 0x257c, /* 010 left */
79 0x2510, 0x252c, 0x252e, /* 011 left down */
80 0x2512, 0x2530, 0x2532, /* 012 */
81 0x2578, 0x257e, 0x2501, /* 020 left */
82 0x2511, 0x252d, 0x252f, /* 021 left down */
83 0x2513, 0x2531, 0x2533, /* 022 */
84 0x2575, 0x2514, 0x2515, /* 100 up */
85 0x2502, 0x251c, 0x251d, /* 101 up down */
86 0x257d, 0x251f, 0x2522, /* 102 */
87 0x2518, 0x2534, 0x2536, /* 110 up left */
88 0x2524, 0x253c, 0x253e, /* 111 all */
89 0x2527, 0x2541, 0x2546, /* 112 */
90 0x2519, 0x2535, 0x2537, /* 120 up left */
91 0x2525, 0x253d, 0x253f, /* 121 all */
92 0x252a, 0x2545, 0x2548, /* 122 */
93 0x2579, 0x2516, 0x2517, /* 200 up */
94 0x257f, 0x251e, 0x2521, /* 201 up down */
95 0x2503, 0x2520, 0x2523, /* 202 */
96 0x251a, 0x2538, 0x253a, /* 210 up left */
97 0x2526, 0x2540, 0x2544, /* 211 all */
98 0x2528, 0x2542, 0x254a, /* 212 */
99 0x251b, 0x2539, 0x253b, /* 220 up left */
100 0x2529, 0x2543, 0x2547, /* 221 all */
101 0x252b, 0x2549, 0x254b, /* 222 */
102 };
103
104 /* ASCII approximations for these code points, compatible with groff. */
105 static const int borders_ascii[81] = {
106 ' ', '-', '=', /* 000 right */
107 '|', '+', '+', /* 001 down */
108 '|', '+', '+', /* 002 */
109 '-', '-', '=', /* 010 left */
110 '+', '+', '+', /* 011 left down */
111 '+', '+', '+', /* 012 */
112 '=', '=', '=', /* 020 left */
113 '+', '+', '+', /* 021 left down */
114 '+', '+', '+', /* 022 */
115 '|', '+', '+', /* 100 up */
116 '|', '+', '+', /* 101 up down */
117 '|', '+', '+', /* 102 */
118 '+', '+', '+', /* 110 up left */
119 '+', '+', '+', /* 111 all */
120 '+', '+', '+', /* 112 */
121 '+', '+', '+', /* 120 up left */
122 '+', '+', '+', /* 121 all */
123 '+', '+', '+', /* 122 */
124 '|', '+', '+', /* 200 up */
125 '|', '+', '+', /* 201 up down */
126 '|', '+', '+', /* 202 */
127 '+', '+', '+', /* 210 up left */
128 '+', '+', '+', /* 211 all */
129 '+', '+', '+', /* 212 */
130 '+', '+', '+', /* 220 up left */
131 '+', '+', '+', /* 221 all */
132 '+', '+', '+', /* 222 */
133 };
134
135 /* Either of the above according to the selected output encoding. */
136 static const int *borders_locale;
137
138
139 static size_t
140 term_tbl_sulen(const struct roffsu *su, void *arg)
141 {
142 int i;
143
144 i = term_hen((const struct termp *)arg, su);
145 return i > 0 ? i : 0;
146 }
147
148 static size_t
149 term_tbl_strlen(const char *p, void *arg)
150 {
151 return term_strlen((const struct termp *)arg, p);
152 }
153
154 static size_t
155 term_tbl_len(size_t sz, void *arg)
156 {
157 return term_len((const struct termp *)arg, sz);
158 }
159
160
161 void
162 term_tbl(struct termp *tp, const struct tbl_span *sp)
163 {
164 const struct tbl_cell *cp, *cpn, *cpp, *cps;
165 const struct tbl_dat *dp;
166 static size_t offset;
167 size_t save_offset;
168 size_t coloff, tsz;
169 int hspans, ic, more;
170 int dvert, fc, horiz, lhori, rhori, uvert;
171
172 /* Inhibit printing of spaces: we do padding ourselves. */
173
174 tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE;
175 save_offset = tp->tcol->offset;
176
177 /*
178 * The first time we're invoked for a given table block,
179 * calculate the table widths and decimal positions.
180 */
181
182 if (tp->tbl.cols == NULL) {
183 borders_locale = tp->enc == TERMENC_UTF8 ?
184 borders_utf8 : borders_ascii;
185
186 tp->tbl.len = term_tbl_len;
187 tp->tbl.slen = term_tbl_strlen;
188 tp->tbl.sulen = term_tbl_sulen;
189 tp->tbl.arg = tp;
190
191 tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin);
192
193 /* Center the table as a whole. */
194
195 offset = tp->tcol->offset;
196 if (sp->opts->opts & TBL_OPT_CENTRE) {
197 tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
198 ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
199 for (ic = 0; ic + 1 < sp->opts->cols; ic++)
200 tsz += tp->tbl.cols[ic].width +
201 tp->tbl.cols[ic].spacing;
202 if (sp->opts->cols)
203 tsz += tp->tbl.cols[sp->opts->cols - 1].width;
204 if (offset + tsz > tp->tcol->rmargin)
205 tsz -= 1;
206 offset = offset + tp->tcol->rmargin > tsz ?
207 (offset + tp->tcol->rmargin - tsz) / 2 : 0;
208 tp->tcol->offset = offset;
209 }
210
211 /* Horizontal frame at the start of boxed tables. */
212
213 if (tp->enc == TERMENC_ASCII &&
214 sp->opts->opts & TBL_OPT_DBOX)
215 tbl_hrule(tp, NULL, sp, sp, TBL_OPT_DBOX);
216 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
217 tbl_hrule(tp, NULL, sp, sp, TBL_OPT_BOX);
218 }
219
220 /* Set up the columns. */
221
222 tp->flags |= TERMP_MULTICOL;
223 tp->tcol->offset = offset;
224 horiz = 0;
225 switch (sp->pos) {
226 case TBL_SPAN_HORIZ:
227 case TBL_SPAN_DHORIZ:
228 horiz = 1;
229 term_setcol(tp, 1);
230 break;
231 case TBL_SPAN_DATA:
232 term_setcol(tp, sp->opts->cols + 2);
233 coloff = tp->tcol->offset;
234
235 /* Set up a column for a left vertical frame. */
236
237 if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
238 sp->opts->lvert)
239 coloff++;
240 tp->tcol->rmargin = coloff;
241
242 /* Set up the data columns. */
243
244 dp = sp->first;
245 hspans = 0;
246 for (ic = 0; ic < sp->opts->cols; ic++) {
247 if (hspans == 0) {
248 tp->tcol++;
249 tp->tcol->offset = coloff;
250 }
251 coloff += tp->tbl.cols[ic].width;
252 tp->tcol->rmargin = coloff;
253 if (ic + 1 < sp->opts->cols)
254 coloff += tp->tbl.cols[ic].spacing;
255 if (hspans) {
256 hspans--;
257 continue;
258 }
259 if (dp != NULL &&
260 (ic || sp->layout->first->pos != TBL_CELL_SPAN)) {
261 hspans = dp->hspans;
262 dp = dp->next;
263 }
264 }
265
266 /* Set up a column for a right vertical frame. */
267
268 tp->tcol++;
269 tp->tcol->offset = coloff + 1;
270 tp->tcol->rmargin = tp->maxrmargin;
271
272 /* Spans may have reduced the number of columns. */
273
274 tp->lasttcol = tp->tcol - tp->tcols;
275
276 /* Fill the buffers for all data columns. */
277
278 tp->tcol = tp->tcols;
279 cp = cpn = sp->layout->first;
280 dp = sp->first;
281 hspans = 0;
282 for (ic = 0; ic < sp->opts->cols; ic++) {
283 if (cpn != NULL) {
284 cp = cpn;
285 cpn = cpn->next;
286 }
287 if (hspans) {
288 hspans--;
289 continue;
290 }
291 tp->tcol++;
292 tp->col = 0;
293 tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic);
294 if (dp != NULL &&
295 (ic || sp->layout->first->pos != TBL_CELL_SPAN)) {
296 hspans = dp->hspans;
297 dp = dp->next;
298 }
299 }
300 break;
301 }
302
303 do {
304 /* Print the vertical frame at the start of each row. */
305
306 tp->tcol = tp->tcols;
307 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 :
308 sp->opts->opts & TBL_OPT_BOX ? 1 : 0;
309 if (sp->pos == TBL_SPAN_DATA && uvert < sp->layout->vert)
310 uvert = dvert = sp->layout->vert;
311 if (sp->next != NULL && sp->next->pos == TBL_SPAN_DATA &&
312 dvert < sp->next->layout->vert)
313 dvert = sp->next->layout->vert;
314 if (sp->prev != NULL && uvert < sp->prev->layout->vert &&
315 (horiz || (IS_HORIZ(sp->layout->first) &&
316 !IS_HORIZ(sp->prev->layout->first))))
317 uvert = sp->prev->layout->vert;
318 rhori = sp->pos == TBL_SPAN_DHORIZ ||
319 (sp->first != NULL && sp->first->pos == TBL_DATA_DHORIZ) ||
320 sp->layout->first->pos == TBL_CELL_DHORIZ ? 2 :
321 sp->pos == TBL_SPAN_HORIZ ||
322 (sp->first != NULL && sp->first->pos == TBL_DATA_HORIZ) ||
323 sp->layout->first->pos == TBL_CELL_HORIZ ? 1 : 0;
324 fc = BUP * uvert + BDOWN * dvert + BRIGHT * rhori;
325 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->lvert)) {
326 (*tp->advance)(tp, tp->tcols->offset);
327 tp->viscol = tp->tcol->offset;
328 tbl_direct_border(tp, fc, 1);
329 }
330
331 /* Print the data cells. */
332
333 more = 0;
334 if (horiz)
335 tbl_hrule(tp, sp->prev, sp, sp->next, 0);
336 else {
337 cp = sp->layout->first;
338 cpn = sp->next == NULL ? NULL :
339 sp->next->layout->first;
340 cpp = sp->prev == NULL ? NULL :
341 sp->prev->layout->first;
342 dp = sp->first;
343 hspans = 0;
344 for (ic = 0; ic < sp->opts->cols; ic++) {
345
346 /*
347 * Figure out whether to print a
348 * vertical line after this cell
349 * and advance to next layout cell.
350 */
351
352 uvert = dvert = fc = 0;
353 if (cp != NULL) {
354 cps = cp;
355 while (cps->next != NULL &&
356 cps->next->pos == TBL_CELL_SPAN)
357 cps = cps->next;
358 if (sp->pos == TBL_SPAN_DATA)
359 uvert = dvert = cps->vert;
360 switch (cp->pos) {
361 case TBL_CELL_HORIZ:
362 fc = BHORIZ;
363 break;
364 case TBL_CELL_DHORIZ:
365 fc = BHORIZ * 2;
366 break;
367 default:
368 break;
369 }
370 }
371 if (cpp != NULL) {
372 if (uvert < cpp->vert &&
373 cp != NULL &&
374 ((IS_HORIZ(cp) &&
375 !IS_HORIZ(cpp)) ||
376 (cp->next != NULL &&
377 cpp->next != NULL &&
378 IS_HORIZ(cp->next) &&
379 !IS_HORIZ(cpp->next))))
380 uvert = cpp->vert;
381 cpp = cpp->next;
382 }
383 if (sp->opts->opts & TBL_OPT_ALLBOX) {
384 if (uvert == 0)
385 uvert = 1;
386 if (dvert == 0)
387 dvert = 1;
388 }
389 if (cpn != NULL) {
390 if (dvert == 0 ||
391 (dvert < cpn->vert &&
392 tp->enc == TERMENC_UTF8))
393 dvert = cpn->vert;
394 cpn = cpn->next;
395 }
396
397 lhori = (cp != NULL &&
398 cp->pos == TBL_CELL_DHORIZ) ||
399 (dp != NULL &&
400 dp->pos == TBL_DATA_DHORIZ) ? 2 :
401 (cp != NULL &&
402 cp->pos == TBL_CELL_HORIZ) ||
403 (dp != NULL &&
404 dp->pos == TBL_DATA_HORIZ) ? 1 : 0;
405
406 /*
407 * Skip later cells in a span,
408 * figure out whether to start a span,
409 * and advance to next data cell.
410 */
411
412 if (hspans) {
413 hspans--;
414 cp = cp->next;
415 continue;
416 }
417 if (dp != NULL && (ic ||
418 sp->layout->first->pos != TBL_CELL_SPAN)) {
419 hspans = dp->hspans;
420 dp = dp->next;
421 }
422
423 /*
424 * Print one line of text in the cell
425 * and remember whether there is more.
426 */
427
428 tp->tcol++;
429 if (tp->tcol->col < tp->tcol->lastcol)
430 term_flushln(tp);
431 if (tp->tcol->col < tp->tcol->lastcol)
432 more = 1;
433
434 /*
435 * Vertical frames between data cells,
436 * but not after the last column.
437 */
438
439 if (fc == 0 &&
440 ((uvert == 0 && dvert == 0 &&
441 cp != NULL && (cp->next == NULL ||
442 !IS_HORIZ(cp->next))) ||
443 tp->tcol + 1 ==
444 tp->tcols + tp->lasttcol)) {
445 if (cp != NULL)
446 cp = cp->next;
447 continue;
448 }
449
450 if (tp->viscol < tp->tcol->rmargin) {
451 (*tp->advance)(tp, tp->tcol->rmargin
452 - tp->viscol);
453 tp->viscol = tp->tcol->rmargin;
454 }
455 while (tp->viscol < tp->tcol->rmargin +
456 tp->tbl.cols[ic].spacing / 2)
457 tbl_direct_border(tp,
458 BHORIZ * lhori, 1);
459
460 if (tp->tcol + 1 == tp->tcols + tp->lasttcol)
461 continue;
462
463 if (cp != NULL)
464 cp = cp->next;
465
466 rhori = (cp != NULL &&
467 cp->pos == TBL_CELL_DHORIZ) ||
468 (dp != NULL &&
469 dp->pos == TBL_DATA_DHORIZ) ? 2 :
470 (cp != NULL &&
471 cp->pos == TBL_CELL_HORIZ) ||
472 (dp != NULL &&
473 dp->pos == TBL_DATA_HORIZ) ? 1 : 0;
474
475 if (tp->tbl.cols[ic].spacing)
476 tbl_direct_border(tp,
477 BLEFT * lhori + BRIGHT * rhori +
478 BUP * uvert + BDOWN * dvert, 1);
479
480 if (tp->enc == TERMENC_UTF8)
481 uvert = dvert = 0;
482
483 if (tp->tbl.cols[ic].spacing > 2 &&
484 (uvert > 1 || dvert > 1 || rhori))
485 tbl_direct_border(tp,
486 BHORIZ * rhori +
487 BUP * (uvert > 1) +
488 BDOWN * (dvert > 1), 1);
489 }
490 }
491
492 /* Print the vertical frame at the end of each row. */
493
494 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 :
495 sp->opts->opts & TBL_OPT_BOX ? 1 : 0;
496 if (sp->pos == TBL_SPAN_DATA &&
497 uvert < sp->layout->last->vert &&
498 sp->layout->last->col + 1 == sp->opts->cols)
499 uvert = dvert = sp->layout->last->vert;
500 if (sp->next != NULL &&
501 dvert < sp->next->layout->last->vert &&
502 sp->next->layout->last->col + 1 == sp->opts->cols)
503 dvert = sp->next->layout->last->vert;
504 if (sp->prev != NULL &&
505 uvert < sp->prev->layout->last->vert &&
506 sp->prev->layout->last->col + 1 == sp->opts->cols &&
507 (horiz || (IS_HORIZ(sp->layout->last) &&
508 !IS_HORIZ(sp->prev->layout->last))))
509 uvert = sp->prev->layout->last->vert;
510 lhori = sp->pos == TBL_SPAN_DHORIZ ||
511 (sp->last != NULL &&
512 sp->last->pos == TBL_DATA_DHORIZ &&
513 sp->last->layout->col + 1 == sp->opts->cols) ||
514 (sp->layout->last->pos == TBL_CELL_DHORIZ &&
515 sp->layout->last->col + 1 == sp->opts->cols) ? 2 :
516 sp->pos == TBL_SPAN_HORIZ ||
517 (sp->last != NULL &&
518 sp->last->pos == TBL_DATA_HORIZ &&
519 sp->last->layout->col + 1 == sp->opts->cols) ||
520 (sp->layout->last->pos == TBL_CELL_HORIZ &&
521 sp->layout->last->col + 1 == sp->opts->cols) ? 1 : 0;
522 fc = BUP * uvert + BDOWN * dvert + BLEFT * lhori;
523 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->rvert)) {
524 if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 ||
525 sp->layout->last->col + 1 < sp->opts->cols)) {
526 tp->tcol++;
527 do {
528 tbl_direct_border(tp,
529 BHORIZ * lhori, 1);
530 } while (tp->viscol < tp->tcol->offset);
531 }
532 tbl_direct_border(tp, fc, 1);
533 }
534 (*tp->endline)(tp);
535 tp->viscol = 0;
536 } while (more);
537
538 /*
539 * Clean up after this row. If it is the last line
540 * of the table, print the box line and clean up
541 * column data; otherwise, print the allbox line.
542 */
543
544 term_setcol(tp, 1);
545 tp->flags &= ~TERMP_MULTICOL;
546 tp->tcol->rmargin = tp->maxrmargin;
547 if (sp->next == NULL) {
548 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
549 tbl_hrule(tp, sp, sp, NULL, TBL_OPT_BOX);
550 tp->skipvsp = 1;
551 }
552 if (tp->enc == TERMENC_ASCII &&
553 sp->opts->opts & TBL_OPT_DBOX) {
554 tbl_hrule(tp, sp, sp, NULL, TBL_OPT_DBOX);
555 tp->skipvsp = 2;
556 }
557 assert(tp->tbl.cols);
558 free(tp->tbl.cols);
559 tp->tbl.cols = NULL;
560 } else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX &&
561 (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA ||
562 sp->next->next != NULL))
563 tbl_hrule(tp, sp, sp, sp->next, TBL_OPT_ALLBOX);
564
565 tp->tcol->offset = save_offset;
566 tp->flags &= ~TERMP_NONOSPACE;
567 }
568
569 static void
570 tbl_hrule(struct termp *tp, const struct tbl_span *spp,
571 const struct tbl_span *sp, const struct tbl_span *spn, int flags)
572 {
573 const struct tbl_cell *cpp; /* Layout cell above this line. */
574 const struct tbl_cell *cp; /* Layout cell in this line. */
575 const struct tbl_cell *cpn; /* Layout cell below this line. */
576 const struct tbl_dat *dpn; /* Data cell below this line. */
577 const struct roffcol *col; /* Contains width and spacing. */
578 int opts; /* For the table as a whole. */
579 int bw; /* Box line width. */
580 int hw; /* Horizontal line width. */
581 int lw, rw; /* Left and right line widths. */
582 int uw, dw; /* Vertical line widths. */
583
584 cpp = spp == NULL ? NULL : spp->layout->first;
585 cp = sp == NULL ? NULL : sp->layout->first;
586 cpn = spn == NULL ? NULL : spn->layout->first;
587 dpn = NULL;
588 if (spn != NULL) {
589 if (spn->pos == TBL_SPAN_DATA)
590 dpn = spn->first;
591 else if (spn->next != NULL)
592 dpn = spn->next->first;
593 }
594 opts = sp->opts->opts;
595 bw = opts & TBL_OPT_DBOX ? (tp->enc == TERMENC_UTF8 ? 2 : 1) :
596 opts & (TBL_OPT_BOX | TBL_OPT_ALLBOX) ? 1 : 0;
597 hw = flags == TBL_OPT_DBOX || flags == TBL_OPT_BOX ? bw :
598 sp->pos == TBL_SPAN_DHORIZ ? 2 : 1;
599
600 /* Print the left end of the line. */
601
602 if (tp->viscol == 0) {
603 (*tp->advance)(tp, tp->tcols->offset);
604 tp->viscol = tp->tcols->offset;
605 }
606 if (flags != 0)
607 tbl_direct_border(tp,
608 (spp == NULL ? 0 : BUP * bw) +
609 (spn == NULL ? 0 : BDOWN * bw) +
610 (spp == NULL || cpn == NULL ||
611 cpn->pos != TBL_CELL_DOWN ? BRIGHT * hw : 0), 1);
612
613 col = tp->tbl.cols;
614 for (;;) {
615 if (cp == NULL)
616 col++;
617 else
618 col = tp->tbl.cols + cp->col;
619
620 /* Print the horizontal line inside this column. */
621
622 lw = cpp == NULL || cpn == NULL ||
623 (cpn->pos != TBL_CELL_DOWN &&
624 (dpn == NULL || dpn->string == NULL ||
625 strcmp(dpn->string, "\\^") != 0))
626 ? hw : 0;
627 tbl_direct_border(tp, BHORIZ * lw,
628 col->width + col->spacing / 2);
629
630 /*
631 * Figure out whether a vertical line is crossing
632 * at the end of this column,
633 * and advance to the next column.
634 */
635
636 uw = dw = 0;
637 if (cpp != NULL) {
638 if (flags != TBL_OPT_DBOX) {
639 uw = cpp->vert;
640 if (uw == 0 && opts & TBL_OPT_ALLBOX)
641 uw = 1;
642 }
643 cpp = cpp->next;
644 } else if (spp != NULL && opts & TBL_OPT_ALLBOX)
645 uw = 1;
646 if (cp != NULL)
647 cp = cp->next;
648 if (cpn != NULL) {
649 if (flags != TBL_OPT_DBOX) {
650 dw = cpn->vert;
651 if (dw == 0 && opts & TBL_OPT_ALLBOX)
652 dw = 1;
653 }
654 cpn = cpn->next;
655 while (dpn != NULL && dpn->layout != cpn)
656 dpn = dpn->next;
657 } else if (spn != NULL && opts & TBL_OPT_ALLBOX)
658 dw = 1;
659 if (col + 1 == tp->tbl.cols + sp->opts->cols)
660 break;
661
662 /* Vertical lines do not cross spanned cells. */
663
664 if (cpp != NULL && cpp->pos == TBL_CELL_SPAN)
665 uw = 0;
666 if (cpn != NULL && cpn->pos == TBL_CELL_SPAN)
667 dw = 0;
668
669 /* The horizontal line inside the next column. */
670
671 rw = cpp == NULL || cpn == NULL ||
672 (cpn->pos != TBL_CELL_DOWN &&
673 (dpn == NULL || dpn->string == NULL ||
674 strcmp(dpn->string, "\\^") != 0))
675 ? hw : 0;
676
677 /* The line crossing at the end of this column. */
678
679 if (col->spacing)
680 tbl_direct_border(tp, BLEFT * lw +
681 BRIGHT * rw + BUP * uw + BDOWN * dw, 1);
682
683 /*
684 * In ASCII output, a crossing may print two characters.
685 */
686
687 if (tp->enc != TERMENC_ASCII || (uw < 2 && dw < 2))
688 uw = dw = 0;
689 if (col->spacing > 2)
690 tbl_direct_border(tp,
691 BHORIZ * rw + BUP * uw + BDOWN * dw, 1);
692
693 /* Padding before the start of the next column. */
694
695 if (col->spacing > 4)
696 tbl_direct_border(tp,
697 BHORIZ * rw, (col->spacing - 3) / 2);
698 }
699
700 /* Print the right end of the line. */
701
702 if (flags != 0) {
703 tbl_direct_border(tp,
704 (spp == NULL ? 0 : BUP * bw) +
705 (spn == NULL ? 0 : BDOWN * bw) +
706 (spp == NULL || spn == NULL ||
707 spn->layout->last->pos != TBL_CELL_DOWN ?
708 BLEFT * hw : 0), 1);
709 (*tp->endline)(tp);
710 tp->viscol = 0;
711 }
712 }
713
714 static void
715 tbl_data(struct termp *tp, const struct tbl_opts *opts,
716 const struct tbl_cell *cp, const struct tbl_dat *dp,
717 const struct roffcol *col)
718 {
719 switch (cp->pos) {
720 case TBL_CELL_HORIZ:
721 tbl_fill_border(tp, BHORIZ, col->width);
722 return;
723 case TBL_CELL_DHORIZ:
724 tbl_fill_border(tp, BHORIZ * 2, col->width);
725 return;
726 default:
727 break;
728 }
729
730 if (dp == NULL)
731 return;
732
733 switch (dp->pos) {
734 case TBL_DATA_NONE:
735 return;
736 case TBL_DATA_HORIZ:
737 case TBL_DATA_NHORIZ:
738 tbl_fill_border(tp, BHORIZ, col->width);
739 return;
740 case TBL_DATA_NDHORIZ:
741 case TBL_DATA_DHORIZ:
742 tbl_fill_border(tp, BHORIZ * 2, col->width);
743 return;
744 default:
745 break;
746 }
747
748 switch (cp->pos) {
749 case TBL_CELL_LONG:
750 case TBL_CELL_CENTRE:
751 case TBL_CELL_LEFT:
752 case TBL_CELL_RIGHT:
753 tbl_literal(tp, dp, col);
754 break;
755 case TBL_CELL_NUMBER:
756 tbl_number(tp, opts, dp, col);
757 break;
758 case TBL_CELL_DOWN:
759 case TBL_CELL_SPAN:
760 break;
761 default:
762 abort();
763 }
764 }
765
766 static void
767 tbl_fill_string(struct termp *tp, const char *cp, size_t len)
768 {
769 size_t i, sz;
770
771 sz = term_strlen(tp, cp);
772 for (i = 0; i < len; i += sz)
773 term_word(tp, cp);
774 }
775
776 static void
777 tbl_fill_char(struct termp *tp, char c, size_t len)
778 {
779 char cp[2];
780
781 cp[0] = c;
782 cp[1] = '\0';
783 tbl_fill_string(tp, cp, len);
784 }
785
786 static void
787 tbl_fill_border(struct termp *tp, int c, size_t len)
788 {
789 char buf[12];
790
791 if ((c = borders_locale[c]) > 127) {
792 (void)snprintf(buf, sizeof(buf), "\\[u%04x]", c);
793 tbl_fill_string(tp, buf, len);
794 } else
795 tbl_fill_char(tp, c, len);
796 }
797
798 static void
799 tbl_direct_border(struct termp *tp, int c, size_t len)
800 {
801 size_t i, sz;
802
803 c = borders_locale[c];
804 sz = (*tp->width)(tp, c);
805 for (i = 0; i < len; i += sz) {
806 (*tp->letter)(tp, c);
807 tp->viscol += sz;
808 }
809 }
810
811 static void
812 tbl_literal(struct termp *tp, const struct tbl_dat *dp,
813 const struct roffcol *col)
814 {
815 size_t len, padl, padr, width;
816 int ic, hspans;
817
818 assert(dp->string);
819 len = term_strlen(tp, dp->string);
820 width = col->width;
821 ic = dp->layout->col;
822 hspans = dp->hspans;
823 while (hspans--)
824 width += tp->tbl.cols[++ic].width + 3;
825
826 padr = width > len ? width - len : 0;
827 padl = 0;
828
829 switch (dp->layout->pos) {
830 case TBL_CELL_LONG:
831 padl = term_len(tp, 1);
832 padr = padr > padl ? padr - padl : 0;
833 break;
834 case TBL_CELL_CENTRE:
835 if (2 > padr)
836 break;
837 padl = padr / 2;
838 padr -= padl;
839 break;
840 case TBL_CELL_RIGHT:
841 padl = padr;
842 padr = 0;
843 break;
844 default:
845 break;
846 }
847
848 tbl_fill_char(tp, ASCII_NBRSP, padl);
849 tbl_word(tp, dp);
850 tbl_fill_char(tp, ASCII_NBRSP, padr);
851 }
852
853 static void
854 tbl_number(struct termp *tp, const struct tbl_opts *opts,
855 const struct tbl_dat *dp,
856 const struct roffcol *col)
857 {
858 const char *cp, *lastdigit, *lastpoint;
859 size_t intsz, padl, totsz;
860 char buf[2];
861
862 /*
863 * Almost the same code as in tblcalc_number():
864 * First find the position of the decimal point.
865 */
866
867 assert(dp->string);
868 lastdigit = lastpoint = NULL;
869 for (cp = dp->string; cp[0] != '\0'; cp++) {
870 if (cp[0] == '\\' && cp[1] == '&') {
871 lastdigit = lastpoint = cp;
872 break;
873 } else if (cp[0] == opts->decimal &&
874 (isdigit((unsigned char)cp[1]) ||
875 (cp > dp->string && isdigit((unsigned char)cp[-1]))))
876 lastpoint = cp;
877 else if (isdigit((unsigned char)cp[0]))
878 lastdigit = cp;
879 }
880
881 /* Then measure both widths. */
882
883 padl = 0;
884 totsz = term_strlen(tp, dp->string);
885 if (lastdigit != NULL) {
886 if (lastpoint == NULL)
887 lastpoint = lastdigit + 1;
888 intsz = 0;
889 buf[1] = '\0';
890 for (cp = dp->string; cp < lastpoint; cp++) {
891 buf[0] = cp[0];
892 intsz += term_strlen(tp, buf);
893 }
894
895 /*
896 * Pad left to match the decimal position,
897 * but avoid exceeding the total column width.
898 */
899
900 if (col->decimal > intsz && col->width > totsz) {
901 padl = col->decimal - intsz;
902 if (padl + totsz > col->width)
903 padl = col->width - totsz;
904 }
905
906 /* If it is not a number, simply center the string. */
907
908 } else if (col->width > totsz)
909 padl = (col->width - totsz) / 2;
910
911 tbl_fill_char(tp, ASCII_NBRSP, padl);
912 tbl_word(tp, dp);
913
914 /* Pad right to fill the column. */
915
916 if (col->width > padl + totsz)
917 tbl_fill_char(tp, ASCII_NBRSP, col->width - padl - totsz);
918 }
919
920 static void
921 tbl_word(struct termp *tp, const struct tbl_dat *dp)
922 {
923 int prev_font;
924
925 prev_font = tp->fonti;
926 switch (dp->layout->font) {
927 case ESCAPE_FONTBI:
928 term_fontpush(tp, TERMFONT_BI);
929 break;
930 case ESCAPE_FONTBOLD:
931 case ESCAPE_FONTCB:
932 term_fontpush(tp, TERMFONT_BOLD);
933 break;
934 case ESCAPE_FONTITALIC:
935 case ESCAPE_FONTCI:
936 term_fontpush(tp, TERMFONT_UNDER);
937 break;
938 case ESCAPE_FONTROMAN:
939 case ESCAPE_FONTCR:
940 break;
941 default:
942 abort();
943 }
944
945 term_word(tp, dp->string);
946
947 term_fontpopq(tp, prev_font);
948 }
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