]> git.cameronkatri.com Git - mandoc.git/blob - tbl_term.c
git.ckatri.com / mandoc.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
Initializers for file-scope static variables should be compile-time
[mandoc.git] / tbl_term.c
1 /* $Id: tbl_term.c,v 1.66 2018/12/12 21:54:35 schwarze Exp $ */
2 /*
3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2011-2018 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 *, int);
50 static void tbl_literal(struct termp *, const struct tbl_dat *,
51 const struct roffcol *);
52 static void tbl_number(struct termp *, const struct tbl_opts *,
53 const struct tbl_dat *,
54 const struct roffcol *);
55 static void tbl_word(struct termp *, const struct tbl_dat *);
56
57
58 /*
59 * The following border-character tables are indexed
60 * by ternary (3-based) numbers, as opposed to binary or decimal.
61 * Each ternary digit describes the line width in one direction:
62 * 0 means no line, 1 single or light line, 2 double or heavy line.
63 */
64
65 /* Positional values of the four directions. */
66 #define BRIGHT 1
67 #define BDOWN 3
68 #define BLEFT (3 * 3)
69 #define BUP (3 * 3 * 3)
70 #define BHORIZ (BLEFT + BRIGHT)
71
72 /* Code points to use for each combination of widths. */
73 static const int borders_utf8[81] = {
74 0x0020, 0x2576, 0x257a, /* 000 right */
75 0x2577, 0x250c, 0x250d, /* 001 down */
76 0x257b, 0x250e, 0x250f, /* 002 */
77 0x2574, 0x2500, 0x257c, /* 010 left */
78 0x2510, 0x252c, 0x252e, /* 011 left down */
79 0x2512, 0x2530, 0x2532, /* 012 */
80 0x2578, 0x257e, 0x2501, /* 020 left */
81 0x2511, 0x252d, 0x252f, /* 021 left down */
82 0x2513, 0x2531, 0x2533, /* 022 */
83 0x2575, 0x2514, 0x2515, /* 100 up */
84 0x2502, 0x251c, 0x251d, /* 101 up down */
85 0x257d, 0x251f, 0x2522, /* 102 */
86 0x2518, 0x2534, 0x2536, /* 110 up left */
87 0x2524, 0x253c, 0x253e, /* 111 all */
88 0x2527, 0x2541, 0x2546, /* 112 */
89 0x2519, 0x2535, 0x2537, /* 120 up left */
90 0x2525, 0x253d, 0x253f, /* 121 all */
91 0x252a, 0x2545, 0x2548, /* 122 */
92 0x2579, 0x2516, 0x2517, /* 200 up */
93 0x257f, 0x251e, 0x2521, /* 201 up down */
94 0x2503, 0x2520, 0x2523, /* 202 */
95 0x251a, 0x2538, 0x253a, /* 210 up left */
96 0x2526, 0x2540, 0x2544, /* 211 all */
97 0x2528, 0x2542, 0x254a, /* 212 */
98 0x251b, 0x2539, 0x253b, /* 220 up left */
99 0x2529, 0x2543, 0x2547, /* 221 all */
100 0x252b, 0x2549, 0x254b, /* 222 */
101 };
102
103 /* ASCII approximations for these code points, compatible with groff. */
104 static const int borders_ascii[81] = {
105 ' ', '-', '=', /* 000 right */
106 '|', '+', '+', /* 001 down */
107 '|', '+', '+', /* 002 */
108 '-', '-', '=', /* 010 left */
109 '+', '+', '+', /* 011 left down */
110 '+', '+', '+', /* 012 */
111 '=', '=', '=', /* 020 left */
112 '+', '+', '+', /* 021 left down */
113 '+', '+', '+', /* 022 */
114 '|', '+', '+', /* 100 up */
115 '|', '+', '+', /* 101 up down */
116 '|', '+', '+', /* 102 */
117 '+', '+', '+', /* 110 up left */
118 '+', '+', '+', /* 111 all */
119 '+', '+', '+', /* 112 */
120 '+', '+', '+', /* 120 up left */
121 '+', '+', '+', /* 121 all */
122 '+', '+', '+', /* 122 */
123 '|', '+', '+', /* 200 up */
124 '|', '+', '+', /* 201 up down */
125 '|', '+', '+', /* 202 */
126 '+', '+', '+', /* 210 up left */
127 '+', '+', '+', /* 211 all */
128 '+', '+', '+', /* 212 */
129 '+', '+', '+', /* 220 up left */
130 '+', '+', '+', /* 221 all */
131 '+', '+', '+', /* 222 */
132 };
133
134 /* Either of the above according to the selected output encoding. */
135 static const int *borders_locale;
136
137
138 static size_t
139 term_tbl_sulen(const struct roffsu *su, void *arg)
140 {
141 int i;
142
143 i = term_hen((const struct termp *)arg, su);
144 return i > 0 ? i : 0;
145 }
146
147 static size_t
148 term_tbl_strlen(const char *p, void *arg)
149 {
150 return term_strlen((const struct termp *)arg, p);
151 }
152
153 static size_t
154 term_tbl_len(size_t sz, void *arg)
155 {
156 return term_len((const struct termp *)arg, sz);
157 }
158
159
160 void
161 term_tbl(struct termp *tp, const struct tbl_span *sp)
162 {
163 const struct tbl_cell *cp, *cpn, *cpp, *cps;
164 const struct tbl_dat *dp;
165 static size_t offset;
166 size_t coloff, tsz;
167 int hspans, ic, more;
168 int dvert, fc, horiz, line, uvert;
169
170 /* Inhibit printing of spaces: we do padding ourselves. */
171
172 tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE;
173
174 /*
175 * The first time we're invoked for a given table block,
176 * calculate the table widths and decimal positions.
177 */
178
179 if (tp->tbl.cols == NULL) {
180 borders_locale = tp->enc == TERMENC_UTF8 ?
181 borders_utf8 : borders_ascii;
182
183 tp->tbl.len = term_tbl_len;
184 tp->tbl.slen = term_tbl_strlen;
185 tp->tbl.sulen = term_tbl_sulen;
186 tp->tbl.arg = tp;
187
188 tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin);
189
190 /* Tables leak .ta settings to subsequent text. */
191
192 term_tab_set(tp, NULL);
193 coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
194 sp->opts->lvert;
195 for (ic = 0; ic < sp->opts->cols; ic++) {
196 coloff += tp->tbl.cols[ic].width;
197 term_tab_iset(coloff);
198 coloff += tp->tbl.cols[ic].spacing;
199 }
200
201 /* Center the table as a whole. */
202
203 offset = tp->tcol->offset;
204 if (sp->opts->opts & TBL_OPT_CENTRE) {
205 tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
206 ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
207 for (ic = 0; ic + 1 < sp->opts->cols; ic++)
208 tsz += tp->tbl.cols[ic].width +
209 tp->tbl.cols[ic].spacing;
210 if (sp->opts->cols)
211 tsz += tp->tbl.cols[sp->opts->cols - 1].width;
212 if (offset + tsz > tp->tcol->rmargin)
213 tsz -= 1;
214 tp->tcol->offset = offset + tp->tcol->rmargin > tsz ?
215 (offset + tp->tcol->rmargin - tsz) / 2 : 0;
216 }
217
218 /* Horizontal frame at the start of boxed tables. */
219
220 if (tp->enc == TERMENC_ASCII &&
221 sp->opts->opts & TBL_OPT_DBOX)
222 tbl_hrule(tp, NULL, sp, TBL_OPT_DBOX);
223 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
224 tbl_hrule(tp, NULL, sp, TBL_OPT_BOX);
225 }
226
227 /* Set up the columns. */
228
229 tp->flags |= TERMP_MULTICOL;
230 horiz = 0;
231 switch (sp->pos) {
232 case TBL_SPAN_HORIZ:
233 case TBL_SPAN_DHORIZ:
234 horiz = 1;
235 term_setcol(tp, 1);
236 break;
237 case TBL_SPAN_DATA:
238 term_setcol(tp, sp->opts->cols + 2);
239 coloff = tp->tcol->offset;
240
241 /* Set up a column for a left vertical frame. */
242
243 if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
244 sp->opts->lvert)
245 coloff++;
246 tp->tcol->rmargin = coloff;
247
248 /* Set up the data columns. */
249
250 dp = sp->first;
251 hspans = 0;
252 for (ic = 0; ic < sp->opts->cols; ic++) {
253 if (hspans == 0) {
254 tp->tcol++;
255 tp->tcol->offset = coloff;
256 }
257 coloff += tp->tbl.cols[ic].width;
258 tp->tcol->rmargin = coloff;
259 if (ic + 1 < sp->opts->cols)
260 coloff += tp->tbl.cols[ic].spacing;
261 if (hspans) {
262 hspans--;
263 continue;
264 }
265 if (dp == NULL)
266 continue;
267 hspans = dp->hspans;
268 if (ic || sp->layout->first->pos != TBL_CELL_SPAN)
269 dp = dp->next;
270 }
271
272 /* Set up a column for a right vertical frame. */
273
274 tp->tcol++;
275 tp->tcol->offset = coloff + 1;
276 tp->tcol->rmargin = tp->maxrmargin;
277
278 /* Spans may have reduced the number of columns. */
279
280 tp->lasttcol = tp->tcol - tp->tcols;
281
282 /* Fill the buffers for all data columns. */
283
284 tp->tcol = tp->tcols;
285 cp = cpn = sp->layout->first;
286 dp = sp->first;
287 hspans = 0;
288 for (ic = 0; ic < sp->opts->cols; ic++) {
289 if (cpn != NULL) {
290 cp = cpn;
291 cpn = cpn->next;
292 }
293 if (hspans) {
294 hspans--;
295 continue;
296 }
297 tp->tcol++;
298 tp->col = 0;
299 tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic);
300 if (dp == NULL)
301 continue;
302 hspans = dp->hspans;
303 if (cp->pos != TBL_CELL_SPAN)
304 dp = dp->next;
305 }
306 break;
307 }
308
309 do {
310 /* Print the vertical frame at the start of each row. */
311
312 tp->tcol = tp->tcols;
313 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 :
314 sp->opts->opts & TBL_OPT_BOX ? 1 : 0;
315 if (sp->pos == TBL_SPAN_DATA && uvert < sp->layout->vert)
316 uvert = dvert = sp->layout->vert;
317 if (sp->next != NULL && sp->next->pos == TBL_SPAN_DATA &&
318 dvert < sp->next->layout->vert)
319 dvert = sp->next->layout->vert;
320 if (sp->prev != NULL && uvert < sp->prev->layout->vert &&
321 (horiz || (IS_HORIZ(sp->layout->first) &&
322 !IS_HORIZ(sp->prev->layout->first))))
323 uvert = sp->prev->layout->vert;
324 line = sp->pos == TBL_SPAN_DHORIZ ||
325 sp->layout->first->pos == TBL_CELL_DHORIZ ? 2 :
326 sp->pos == TBL_SPAN_HORIZ ||
327 sp->layout->first->pos == TBL_CELL_HORIZ ? 1 : 0;
328 fc = BUP * uvert + BDOWN * dvert + BRIGHT * line;
329 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->lvert)) {
330 (*tp->advance)(tp, tp->tcols->offset);
331 tp->viscol = tp->tcol->offset;
332 tbl_direct_border(tp, fc, 1);
333 }
334
335 /* Print the data cells. */
336
337 more = 0;
338 if (horiz)
339 tbl_hrule(tp, sp->prev, sp, 0);
340 else {
341 cp = sp->layout->first;
342 cpn = sp->next == NULL ? NULL :
343 sp->next->layout->first;
344 cpp = sp->prev == NULL ? NULL :
345 sp->prev->layout->first;
346 dp = sp->first;
347 hspans = 0;
348 for (ic = 0; ic < sp->opts->cols; ic++) {
349
350 /*
351 * Figure out whether to print a
352 * vertical line after this cell
353 * and advance to next layout cell.
354 */
355
356 uvert = dvert = fc = 0;
357 if (cp != NULL) {
358 cps = cp;
359 while (cps->next != NULL &&
360 cps->next->pos == TBL_CELL_SPAN)
361 cps = cps->next;
362 if (sp->pos == TBL_SPAN_DATA)
363 uvert = dvert = cps->vert;
364 switch (cp->pos) {
365 case TBL_CELL_HORIZ:
366 fc = BHORIZ;
367 break;
368 case TBL_CELL_DHORIZ:
369 fc = BHORIZ * 2;
370 break;
371 default:
372 break;
373 }
374 }
375 if (cpp != NULL) {
376 if (uvert < cpp->vert &&
377 cp != NULL &&
378 ((IS_HORIZ(cp) &&
379 !IS_HORIZ(cpp)) ||
380 (cp->next != NULL &&
381 cpp->next != NULL &&
382 IS_HORIZ(cp->next) &&
383 !IS_HORIZ(cpp->next))))
384 uvert = cpp->vert;
385 cpp = cpp->next;
386 }
387 if (sp->opts->opts & TBL_OPT_ALLBOX) {
388 if (uvert == 0)
389 uvert = 1;
390 if (dvert == 0)
391 dvert = 1;
392 }
393 if (cpn != NULL) {
394 if (dvert == 0 ||
395 (dvert < cpn->vert &&
396 tp->enc == TERMENC_UTF8))
397 dvert = cpn->vert;
398 cpn = cpn->next;
399 }
400
401 /*
402 * Skip later cells in a span,
403 * figure out whether to start a span,
404 * and advance to next data cell.
405 */
406
407 if (hspans) {
408 hspans--;
409 cp = cp->next;
410 continue;
411 }
412 if (dp != NULL) {
413 hspans = dp->hspans;
414 if (ic || sp->layout->first->pos
415 != TBL_CELL_SPAN)
416 dp = dp->next;
417 }
418
419 /*
420 * Print one line of text in the cell
421 * and remember whether there is more.
422 */
423
424 tp->tcol++;
425 if (tp->tcol->col < tp->tcol->lastcol)
426 term_flushln(tp);
427 if (tp->tcol->col < tp->tcol->lastcol)
428 more = 1;
429
430 /*
431 * Vertical frames between data cells,
432 * but not after the last column.
433 */
434
435 if (fc == 0 &&
436 ((uvert == 0 && dvert == 0 &&
437 cp != NULL && (cp->next == NULL ||
438 !IS_HORIZ(cp->next))) ||
439 tp->tcol + 1 ==
440 tp->tcols + tp->lasttcol)) {
441 if (cp != NULL)
442 cp = cp->next;
443 continue;
444 }
445
446 if (tp->viscol < tp->tcol->rmargin) {
447 (*tp->advance)(tp, tp->tcol->rmargin
448 - tp->viscol);
449 tp->viscol = tp->tcol->rmargin;
450 }
451 while (tp->viscol < tp->tcol->rmargin +
452 tp->tbl.cols[ic].spacing / 2)
453 tbl_direct_border(tp, fc, 1);
454
455 if (tp->tcol + 1 == tp->tcols + tp->lasttcol)
456 continue;
457
458 if (cp != NULL) {
459 switch (cp->pos) {
460 case TBL_CELL_HORIZ:
461 fc = BLEFT;
462 break;
463 case TBL_CELL_DHORIZ:
464 fc = BLEFT * 2;
465 break;
466 default:
467 fc = 0;
468 break;
469 }
470 cp = cp->next;
471 }
472 if (cp != NULL) {
473 switch (cp->pos) {
474 case TBL_CELL_HORIZ:
475 fc += BRIGHT;
476 break;
477 case TBL_CELL_DHORIZ:
478 fc += BRIGHT * 2;
479 break;
480 default:
481 break;
482 }
483 }
484 if (tp->tbl.cols[ic].spacing)
485 tbl_direct_border(tp, fc +
486 BUP * uvert + BDOWN * dvert, 1);
487
488 if (tp->enc == TERMENC_UTF8)
489 uvert = dvert = 0;
490
491 if (fc != 0) {
492 if (cp != NULL &&
493 cp->pos == TBL_CELL_HORIZ)
494 fc = BHORIZ;
495 else if (cp != NULL &&
496 cp->pos == TBL_CELL_DHORIZ)
497 fc = BHORIZ * 2;
498 else
499 fc = 0;
500 }
501 if (tp->tbl.cols[ic].spacing > 2 &&
502 (uvert > 1 || dvert > 1 || fc != 0))
503 tbl_direct_border(tp, fc +
504 BUP * (uvert > 1) +
505 BDOWN * (dvert > 1), 1);
506 }
507 }
508
509 /* Print the vertical frame at the end of each row. */
510
511 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 :
512 sp->opts->opts & TBL_OPT_BOX ? 1 : 0;
513 if (sp->pos == TBL_SPAN_DATA &&
514 uvert < sp->layout->last->vert &&
515 sp->layout->last->col + 1 == sp->opts->cols)
516 uvert = dvert = sp->layout->last->vert;
517 if (sp->next != NULL &&
518 dvert < sp->next->layout->last->vert &&
519 sp->next->layout->last->col + 1 == sp->opts->cols)
520 dvert = sp->next->layout->last->vert;
521 if (sp->prev != NULL &&
522 uvert < sp->prev->layout->last->vert &&
523 sp->prev->layout->last->col + 1 == sp->opts->cols &&
524 (horiz || (IS_HORIZ(sp->layout->last) &&
525 !IS_HORIZ(sp->prev->layout->last))))
526 uvert = sp->prev->layout->last->vert;
527 line = sp->pos == TBL_SPAN_DHORIZ ||
528 (sp->layout->last->pos == TBL_CELL_DHORIZ &&
529 sp->layout->last->col + 1 == sp->opts->cols) ? 2 :
530 sp->pos == TBL_SPAN_HORIZ ||
531 (sp->layout->last->pos == TBL_CELL_HORIZ &&
532 sp->layout->last->col + 1 == sp->opts->cols) ? 1 : 0;
533 fc = BUP * uvert + BDOWN * dvert + BLEFT * line;
534 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->rvert)) {
535 if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 ||
536 sp->layout->last->col + 1 < sp->opts->cols)) {
537 tp->tcol++;
538 (*tp->advance)(tp,
539 tp->tcol->offset > tp->viscol ?
540 tp->tcol->offset - tp->viscol : 1);
541 }
542 tbl_direct_border(tp, fc, 1);
543 }
544 (*tp->endline)(tp);
545 tp->viscol = 0;
546 } while (more);
547
548 /*
549 * Clean up after this row. If it is the last line
550 * of the table, print the box line and clean up
551 * column data; otherwise, print the allbox line.
552 */
553
554 term_setcol(tp, 1);
555 tp->flags &= ~TERMP_MULTICOL;
556 tp->tcol->rmargin = tp->maxrmargin;
557 if (sp->next == NULL) {
558 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
559 tbl_hrule(tp, sp, NULL, TBL_OPT_BOX);
560 tp->skipvsp = 1;
561 }
562 if (tp->enc == TERMENC_ASCII &&
563 sp->opts->opts & TBL_OPT_DBOX) {
564 tbl_hrule(tp, sp, NULL, TBL_OPT_DBOX);
565 tp->skipvsp = 2;
566 }
567 assert(tp->tbl.cols);
568 free(tp->tbl.cols);
569 tp->tbl.cols = NULL;
570 tp->tcol->offset = offset;
571 } else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX &&
572 (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA ||
573 sp->next->next != NULL))
574 tbl_hrule(tp, sp, sp->next, TBL_OPT_ALLBOX);
575
576 tp->flags &= ~TERMP_NONOSPACE;
577 }
578
579 static void
580 tbl_hrule(struct termp *tp, const struct tbl_span *spp,
581 const struct tbl_span *spn, int flags)
582 {
583 const struct tbl_cell *cpp; /* Layout cell above this line. */
584 const struct tbl_cell *cpn; /* Layout cell below this line. */
585 const struct tbl_dat *dpn; /* Data cell below this line. */
586 const struct roffcol *col; /* Contains width and spacing. */
587 int opts; /* For the table as a whole. */
588 int bw; /* Box line width. */
589 int hw; /* Horizontal line width. */
590 int lw, rw; /* Left and right line widths. */
591 int uw, dw; /* Vertical line widths. */
592
593 cpp = spp == NULL ? NULL : spp->layout->first;
594 cpn = spn == NULL ? NULL : spn->layout->first;
595 dpn = NULL;
596 if (spn != NULL) {
597 if (spn->pos == TBL_SPAN_DATA)
598 dpn = spn->first;
599 else if (spn->next != NULL)
600 dpn = spn->next->first;
601 }
602 opts = spn == NULL ? spp->opts->opts : spn->opts->opts;
603 bw = opts & TBL_OPT_DBOX ? (tp->enc == TERMENC_UTF8 ? 2 : 1) :
604 opts & (TBL_OPT_BOX | TBL_OPT_ALLBOX) ? 1 : 0;
605 hw = flags == TBL_OPT_DBOX || flags == TBL_OPT_BOX ? bw :
606 spn->pos == TBL_SPAN_DHORIZ ? 2 : 1;
607
608 /* Print the left end of the line. */
609
610 if (tp->viscol == 0) {
611 (*tp->advance)(tp, tp->tcols->offset);
612 tp->viscol = tp->tcols->offset;
613 }
614 if (flags != 0)
615 tbl_direct_border(tp,
616 (spp == NULL ? 0 : BUP * bw) +
617 (spn == NULL ? 0 : BDOWN * bw) +
618 (spp == NULL || cpn == NULL ||
619 cpn->pos != TBL_CELL_DOWN ? BRIGHT * hw : 0), 1);
620
621 for (;;) {
622 col = tp->tbl.cols + (cpn == NULL ? cpp->col : cpn->col);
623
624 /* Print the horizontal line inside this column. */
625
626 lw = cpp == NULL || cpn == NULL ||
627 (cpn->pos != TBL_CELL_DOWN &&
628 (dpn == NULL || strcmp(dpn->string, "\\^") != 0))
629 ? hw : 0;
630 tbl_direct_border(tp, BHORIZ * lw,
631 col->width + col->spacing / 2);
632
633 /*
634 * Figure out whether a vertical line is crossing
635 * at the end of this column,
636 * and advance to the next column.
637 */
638
639 uw = dw = 0;
640 if (cpp != NULL) {
641 if (flags != TBL_OPT_DBOX) {
642 uw = cpp->vert;
643 if (uw == 0 && opts & TBL_OPT_ALLBOX)
644 uw = 1;
645 }
646 cpp = cpp->next;
647 }
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 }
658 if (cpp == NULL && cpn == NULL)
659 break;
660
661 /* Vertical lines do not cross spanned cells. */
662
663 if (cpp != NULL && cpp->pos == TBL_CELL_SPAN)
664 uw = 0;
665 if (cpn != NULL && cpn->pos == TBL_CELL_SPAN)
666 dw = 0;
667
668 /* The horizontal line inside the next column. */
669
670 rw = cpp == NULL || cpn == NULL ||
671 (cpn->pos != TBL_CELL_DOWN &&
672 (dpn == NULL || strcmp(dpn->string, "\\^") != 0))
673 ? hw : 0;
674
675 /* The line crossing at the end of this column. */
676
677 if (col->spacing)
678 tbl_direct_border(tp, BLEFT * lw +
679 BRIGHT * rw + BUP * uw + BDOWN * dw, 1);
680
681 /*
682 * In ASCII output, a crossing may print two characters.
683 */
684
685 if (tp->enc != TERMENC_ASCII || (uw < 2 && dw < 2))
686 uw = dw = 0;
687 if (col->spacing > 2)
688 tbl_direct_border(tp,
689 BHORIZ * rw + BUP * uw + BDOWN * dw, 1);
690
691 /* Padding before the start of the next column. */
692
693 if (col->spacing > 4)
694 tbl_direct_border(tp,
695 BHORIZ * rw, (col->spacing - 3) / 2);
696 }
697
698 /* Print the right end of the line. */
699
700 if (flags != 0) {
701 tbl_direct_border(tp,
702 (spp == NULL ? 0 : BUP * bw) +
703 (spn == NULL ? 0 : BDOWN * bw) +
704 (spp == NULL || spn == NULL ||
705 spn->layout->last->pos != TBL_CELL_DOWN ?
706 BLEFT * hw : 0), 1);
707 (*tp->endline)(tp);
708 tp->viscol = 0;
709 }
710 }
711
712 static void
713 tbl_data(struct termp *tp, const struct tbl_opts *opts,
714 const struct tbl_cell *cp, const struct tbl_dat *dp,
715 const struct roffcol *col)
716 {
717 switch (cp->pos) {
718 case TBL_CELL_HORIZ:
719 tbl_fill_border(tp, BHORIZ, col->width);
720 return;
721 case TBL_CELL_DHORIZ:
722 tbl_fill_border(tp, BHORIZ * 2, col->width);
723 return;
724 default:
725 break;
726 }
727
728 if (dp == NULL)
729 return;
730
731 switch (dp->pos) {
732 case TBL_DATA_NONE:
733 return;
734 case TBL_DATA_HORIZ:
735 case TBL_DATA_NHORIZ:
736 tbl_fill_border(tp, BHORIZ, col->width);
737 return;
738 case TBL_DATA_NDHORIZ:
739 case TBL_DATA_DHORIZ:
740 tbl_fill_border(tp, BHORIZ * 2, col->width);
741 return;
742 default:
743 break;
744 }
745
746 switch (cp->pos) {
747 case TBL_CELL_LONG:
748 case TBL_CELL_CENTRE:
749 case TBL_CELL_LEFT:
750 case TBL_CELL_RIGHT:
751 tbl_literal(tp, dp, col);
752 break;
753 case TBL_CELL_NUMBER:
754 tbl_number(tp, opts, dp, col);
755 break;
756 case TBL_CELL_DOWN:
757 case TBL_CELL_SPAN:
758 break;
759 default:
760 abort();
761 }
762 }
763
764 static void
765 tbl_fill_string(struct termp *tp, const char *cp, size_t len)
766 {
767 size_t i, sz;
768
769 sz = term_strlen(tp, cp);
770 for (i = 0; i < len; i += sz)
771 term_word(tp, cp);
772 }
773
774 static void
775 tbl_fill_char(struct termp *tp, char c, size_t len)
776 {
777 char cp[2];
778
779 cp[0] = c;
780 cp[1] = '\0';
781 tbl_fill_string(tp, cp, len);
782 }
783
784 static void
785 tbl_fill_border(struct termp *tp, int c, size_t len)
786 {
787 char buf[12];
788
789 if ((c = borders_locale[c]) > 127) {
790 (void)snprintf(buf, sizeof(buf), "\\[u%04x]", c);
791 tbl_fill_string(tp, buf, len);
792 } else
793 tbl_fill_char(tp, c, len);
794 }
795
796 static void
797 tbl_direct_border(struct termp *tp, int c, size_t len)
798 {
799 size_t i, sz;
800
801 c = borders_locale[c];
802 sz = (*tp->width)(tp, c);
803 for (i = 0; i < len; i += sz) {
804 (*tp->letter)(tp, c);
805 tp->viscol += sz;
806 }
807 }
808
809 static void
810 tbl_literal(struct termp *tp, const struct tbl_dat *dp,
811 const struct roffcol *col)
812 {
813 size_t len, padl, padr, width;
814 int ic, hspans;
815
816 assert(dp->string);
817 len = term_strlen(tp, dp->string);
818 width = col->width;
819 ic = dp->layout->col;
820 hspans = dp->hspans;
821 while (hspans--)
822 width += tp->tbl.cols[++ic].width + 3;
823
824 padr = width > len ? width - len : 0;
825 padl = 0;
826
827 switch (dp->layout->pos) {
828 case TBL_CELL_LONG:
829 padl = term_len(tp, 1);
830 padr = padr > padl ? padr - padl : 0;
831 break;
832 case TBL_CELL_CENTRE:
833 if (2 > padr)
834 break;
835 padl = padr / 2;
836 padr -= padl;
837 break;
838 case TBL_CELL_RIGHT:
839 padl = padr;
840 padr = 0;
841 break;
842 default:
843 break;
844 }
845
846 tbl_fill_char(tp, ASCII_NBRSP, padl);
847 tbl_word(tp, dp);
848 tbl_fill_char(tp, ASCII_NBRSP, padr);
849 }
850
851 static void
852 tbl_number(struct termp *tp, const struct tbl_opts *opts,
853 const struct tbl_dat *dp,
854 const struct roffcol *col)
855 {
856 const char *cp, *lastdigit, *lastpoint;
857 size_t intsz, padl, totsz;
858 char buf[2];
859
860 /*
861 * Almost the same code as in tblcalc_number():
862 * First find the position of the decimal point.
863 */
864
865 assert(dp->string);
866 lastdigit = lastpoint = NULL;
867 for (cp = dp->string; cp[0] != '\0'; cp++) {
868 if (cp[0] == '\\' && cp[1] == '&') {
869 lastdigit = lastpoint = cp;
870 break;
871 } else if (cp[0] == opts->decimal &&
872 (isdigit((unsigned char)cp[1]) ||
873 (cp > dp->string && isdigit((unsigned char)cp[-1]))))
874 lastpoint = cp;
875 else if (isdigit((unsigned char)cp[0]))
876 lastdigit = cp;
877 }
878
879 /* Then measure both widths. */
880
881 padl = 0;
882 totsz = term_strlen(tp, dp->string);
883 if (lastdigit != NULL) {
884 if (lastpoint == NULL)
885 lastpoint = lastdigit + 1;
886 intsz = 0;
887 buf[1] = '\0';
888 for (cp = dp->string; cp < lastpoint; cp++) {
889 buf[0] = cp[0];
890 intsz += term_strlen(tp, buf);
891 }
892
893 /*
894 * Pad left to match the decimal position,
895 * but avoid exceeding the total column width.
896 */
897
898 if (col->decimal > intsz && col->width > totsz) {
899 padl = col->decimal - intsz;
900 if (padl + totsz > col->width)
901 padl = col->width - totsz;
902 }
903
904 /* If it is not a number, simply center the string. */
905
906 } else if (col->width > totsz)
907 padl = (col->width - totsz) / 2;
908
909 tbl_fill_char(tp, ASCII_NBRSP, padl);
910 tbl_word(tp, dp);
911
912 /* Pad right to fill the column. */
913
914 if (col->width > padl + totsz)
915 tbl_fill_char(tp, ASCII_NBRSP, col->width - padl - totsz);
916 }
917
918 static void
919 tbl_word(struct termp *tp, const struct tbl_dat *dp)
920 {
921 int prev_font;
922
923 prev_font = tp->fonti;
924 if (dp->layout->flags & TBL_CELL_BOLD)
925 term_fontpush(tp, TERMFONT_BOLD);
926 else if (dp->layout->flags & TBL_CELL_ITALIC)
927 term_fontpush(tp, TERMFONT_UNDER);
928
929 term_word(tp, dp->string);
930
931 term_fontpopq(tp, prev_font);
932 }
A git conversion mirror of mandoc.bsd.lv