1/* Id: tbl_term.c,v 1.68 2019/02/09 21:02:47 schwarze Exp */ 2/* 3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2011-2019 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 37static size_t term_tbl_len(size_t, void *); 38static size_t term_tbl_strlen(const char *, void *); 39static size_t term_tbl_sulen(const struct roffsu *, void *); 40static void tbl_data(struct termp *, const struct tbl_opts *, 41 const struct tbl_cell *, 42 const struct tbl_dat *, 43 const struct roffcol *); 44static void tbl_direct_border(struct termp *, int, size_t); 45static void tbl_fill_border(struct termp *, int, size_t); 46static void tbl_fill_char(struct termp *, char, size_t); 47static void tbl_fill_string(struct termp *, const char *, size_t); 48static void tbl_hrule(struct termp *, const struct tbl_span *, 49 const struct tbl_span *, int); 50static void tbl_literal(struct termp *, const struct tbl_dat *, 51 const struct roffcol *); 52static void tbl_number(struct termp *, const struct tbl_opts *, 53 const struct tbl_dat *, 54 const struct roffcol *); 55static 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. */ 73static 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. */ 104static 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. */ 135static const int *borders_locale; 136 137 138static size_t 139term_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 147static size_t 148term_tbl_strlen(const char *p, void *arg) 149{ 150 return term_strlen((const struct termp *)arg, p); 151} 152 153static size_t 154term_tbl_len(size_t sz, void *arg) 155{ 156 return term_len((const struct termp *)arg, sz); 157} 158 159 160void 161term_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 save_offset; 167 size_t coloff, tsz; 168 int hspans, ic, more; 169 int dvert, fc, horiz, lhori, rhori, uvert; 170 171 /* Inhibit printing of spaces: we do padding ourselves. */ 172 173 tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE; 174 save_offset = tp->tcol->offset; 175 176 /* 177 * The first time we're invoked for a given table block, 178 * calculate the table widths and decimal positions. 179 */ 180 181 if (tp->tbl.cols == NULL) { 182 borders_locale = tp->enc == TERMENC_UTF8 ? 183 borders_utf8 : borders_ascii; 184 185 tp->tbl.len = term_tbl_len; 186 tp->tbl.slen = term_tbl_strlen; 187 tp->tbl.sulen = term_tbl_sulen; 188 tp->tbl.arg = tp; 189 190 tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin); 191 192 /* Tables leak .ta settings to subsequent text. */ 193 194 term_tab_set(tp, NULL); 195 coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || 196 sp->opts->lvert; 197 for (ic = 0; ic < sp->opts->cols; ic++) { 198 coloff += tp->tbl.cols[ic].width; 199 term_tab_iset(coloff); 200 coloff += tp->tbl.cols[ic].spacing; 201 } 202 203 /* Center the table as a whole. */ 204 205 offset = tp->tcol->offset; 206 if (sp->opts->opts & TBL_OPT_CENTRE) { 207 tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) 208 ? 2 : !!sp->opts->lvert + !!sp->opts->rvert; 209 for (ic = 0; ic + 1 < sp->opts->cols; ic++) 210 tsz += tp->tbl.cols[ic].width + 211 tp->tbl.cols[ic].spacing; 212 if (sp->opts->cols) 213 tsz += tp->tbl.cols[sp->opts->cols - 1].width; 214 if (offset + tsz > tp->tcol->rmargin) 215 tsz -= 1; 216 offset = offset + tp->tcol->rmargin > tsz ? 217 (offset + tp->tcol->rmargin - tsz) / 2 : 0; 218 tp->tcol->offset = offset; 219 } 220 221 /* Horizontal frame at the start of boxed tables. */ 222 223 if (tp->enc == TERMENC_ASCII && 224 sp->opts->opts & TBL_OPT_DBOX) 225 tbl_hrule(tp, NULL, sp, TBL_OPT_DBOX); 226 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) 227 tbl_hrule(tp, NULL, sp, TBL_OPT_BOX); 228 } 229 230 /* Set up the columns. */ 231 232 tp->flags |= TERMP_MULTICOL; 233 tp->tcol->offset = offset; 234 horiz = 0; 235 switch (sp->pos) { 236 case TBL_SPAN_HORIZ: 237 case TBL_SPAN_DHORIZ: 238 horiz = 1; 239 term_setcol(tp, 1); 240 break; 241 case TBL_SPAN_DATA: 242 term_setcol(tp, sp->opts->cols + 2); 243 coloff = tp->tcol->offset; 244 245 /* Set up a column for a left vertical frame. */ 246 247 if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || 248 sp->opts->lvert) 249 coloff++; 250 tp->tcol->rmargin = coloff; 251 252 /* Set up the data columns. */ 253 254 dp = sp->first; 255 hspans = 0; 256 for (ic = 0; ic < sp->opts->cols; ic++) { 257 if (hspans == 0) { 258 tp->tcol++; 259 tp->tcol->offset = coloff; 260 } 261 coloff += tp->tbl.cols[ic].width; 262 tp->tcol->rmargin = coloff; 263 if (ic + 1 < sp->opts->cols) 264 coloff += tp->tbl.cols[ic].spacing; 265 if (hspans) { 266 hspans--; 267 continue; 268 } 269 if (dp == NULL) 270 continue; 271 hspans = dp->hspans; 272 if (ic || sp->layout->first->pos != TBL_CELL_SPAN) 273 dp = dp->next; 274 } 275 276 /* Set up a column for a right vertical frame. */ 277 278 tp->tcol++; 279 tp->tcol->offset = coloff + 1; 280 tp->tcol->rmargin = tp->maxrmargin; 281 282 /* Spans may have reduced the number of columns. */ 283 284 tp->lasttcol = tp->tcol - tp->tcols; 285 286 /* Fill the buffers for all data columns. */ 287 288 tp->tcol = tp->tcols; 289 cp = cpn = sp->layout->first; 290 dp = sp->first; 291 hspans = 0; 292 for (ic = 0; ic < sp->opts->cols; ic++) { 293 if (cpn != NULL) { 294 cp = cpn; 295 cpn = cpn->next; 296 } 297 if (hspans) { 298 hspans--; 299 continue; 300 } 301 tp->tcol++; 302 tp->col = 0; 303 tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic); 304 if (dp == NULL) 305 continue; 306 hspans = dp->hspans; 307 if (cp->pos != TBL_CELL_SPAN) 308 dp = dp->next; 309 } 310 break; 311 } 312 313 do { 314 /* Print the vertical frame at the start of each row. */ 315 316 tp->tcol = tp->tcols; 317 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : 318 sp->opts->opts & TBL_OPT_BOX ? 1 : 0; 319 if (sp->pos == TBL_SPAN_DATA && uvert < sp->layout->vert) 320 uvert = dvert = sp->layout->vert; 321 if (sp->next != NULL && sp->next->pos == TBL_SPAN_DATA && 322 dvert < sp->next->layout->vert) 323 dvert = sp->next->layout->vert; 324 if (sp->prev != NULL && uvert < sp->prev->layout->vert && 325 (horiz || (IS_HORIZ(sp->layout->first) && 326 !IS_HORIZ(sp->prev->layout->first)))) 327 uvert = sp->prev->layout->vert; 328 rhori = sp->pos == TBL_SPAN_DHORIZ || 329 (sp->first != NULL && sp->first->pos == TBL_DATA_DHORIZ) || 330 sp->layout->first->pos == TBL_CELL_DHORIZ ? 2 : 331 sp->pos == TBL_SPAN_HORIZ || 332 (sp->first != NULL && sp->first->pos == TBL_DATA_HORIZ) || 333 sp->layout->first->pos == TBL_CELL_HORIZ ? 1 : 0; 334 fc = BUP * uvert + BDOWN * dvert + BRIGHT * rhori; 335 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->lvert)) { 336 (*tp->advance)(tp, tp->tcols->offset); 337 tp->viscol = tp->tcol->offset; 338 tbl_direct_border(tp, fc, 1); 339 } 340 341 /* Print the data cells. */ 342 343 more = 0; 344 if (horiz) 345 tbl_hrule(tp, sp->prev, sp, 0); 346 else { 347 cp = sp->layout->first; 348 cpn = sp->next == NULL ? NULL : 349 sp->next->layout->first; 350 cpp = sp->prev == NULL ? NULL : 351 sp->prev->layout->first; 352 dp = sp->first; 353 hspans = 0; 354 for (ic = 0; ic < sp->opts->cols; ic++) { 355 356 /* 357 * Figure out whether to print a 358 * vertical line after this cell 359 * and advance to next layout cell. 360 */ 361 362 uvert = dvert = fc = 0; 363 if (cp != NULL) { 364 cps = cp; 365 while (cps->next != NULL && 366 cps->next->pos == TBL_CELL_SPAN) 367 cps = cps->next; 368 if (sp->pos == TBL_SPAN_DATA) 369 uvert = dvert = cps->vert; 370 switch (cp->pos) { 371 case TBL_CELL_HORIZ: 372 fc = BHORIZ; 373 break; 374 case TBL_CELL_DHORIZ: 375 fc = BHORIZ * 2; 376 break; 377 default: 378 break; 379 } 380 } 381 if (cpp != NULL) { 382 if (uvert < cpp->vert && 383 cp != NULL && 384 ((IS_HORIZ(cp) && 385 !IS_HORIZ(cpp)) || 386 (cp->next != NULL && 387 cpp->next != NULL && 388 IS_HORIZ(cp->next) && 389 !IS_HORIZ(cpp->next)))) 390 uvert = cpp->vert; 391 cpp = cpp->next; 392 } 393 if (sp->opts->opts & TBL_OPT_ALLBOX) { 394 if (uvert == 0) 395 uvert = 1; 396 if (dvert == 0) 397 dvert = 1; 398 } 399 if (cpn != NULL) { 400 if (dvert == 0 || 401 (dvert < cpn->vert && 402 tp->enc == TERMENC_UTF8)) 403 dvert = cpn->vert; 404 cpn = cpn->next; 405 } 406 407 lhori = (cp != NULL && 408 cp->pos == TBL_CELL_DHORIZ) || 409 (dp != NULL && 410 dp->pos == TBL_DATA_DHORIZ) ? 2 : 411 (cp != NULL && 412 cp->pos == TBL_CELL_HORIZ) || 413 (dp != NULL && 414 dp->pos == TBL_DATA_HORIZ) ? 1 : 0; 415 416 /* 417 * Skip later cells in a span, 418 * figure out whether to start a span, 419 * and advance to next data cell. 420 */ 421 422 if (hspans) { 423 hspans--; 424 cp = cp->next; 425 continue; 426 } 427 if (dp != NULL) { 428 hspans = dp->hspans; 429 if (ic || sp->layout->first->pos 430 != TBL_CELL_SPAN) 431 dp = dp->next; 432 } 433 434 /* 435 * Print one line of text in the cell 436 * and remember whether there is more. 437 */ 438 439 tp->tcol++; 440 if (tp->tcol->col < tp->tcol->lastcol) 441 term_flushln(tp); 442 if (tp->tcol->col < tp->tcol->lastcol) 443 more = 1; 444 445 /* 446 * Vertical frames between data cells, 447 * but not after the last column. 448 */ 449 450 if (fc == 0 && 451 ((uvert == 0 && dvert == 0 && 452 cp != NULL && (cp->next == NULL || 453 !IS_HORIZ(cp->next))) || 454 tp->tcol + 1 == 455 tp->tcols + tp->lasttcol)) { 456 if (cp != NULL) 457 cp = cp->next; 458 continue; 459 } 460 461 if (tp->viscol < tp->tcol->rmargin) { 462 (*tp->advance)(tp, tp->tcol->rmargin 463 - tp->viscol); 464 tp->viscol = tp->tcol->rmargin; 465 } 466 while (tp->viscol < tp->tcol->rmargin + 467 tp->tbl.cols[ic].spacing / 2) 468 tbl_direct_border(tp, 469 BHORIZ * lhori, 1); 470 471 if (tp->tcol + 1 == tp->tcols + tp->lasttcol) 472 continue; 473 474 if (cp != NULL) 475 cp = cp->next; 476 477 rhori = (cp != NULL && 478 cp->pos == TBL_CELL_DHORIZ) || 479 (dp != NULL && 480 dp->pos == TBL_DATA_DHORIZ) ? 2 : 481 (cp != NULL && 482 cp->pos == TBL_CELL_HORIZ) || 483 (dp != NULL && 484 dp->pos == TBL_DATA_HORIZ) ? 1 : 0; 485 486 if (tp->tbl.cols[ic].spacing) 487 tbl_direct_border(tp, 488 BLEFT * lhori + BRIGHT * rhori + 489 BUP * uvert + BDOWN * dvert, 1); 490 491 if (tp->enc == TERMENC_UTF8) 492 uvert = dvert = 0; 493 494 if (tp->tbl.cols[ic].spacing > 2 && 495 (uvert > 1 || dvert > 1 || rhori)) 496 tbl_direct_border(tp, 497 BHORIZ * rhori + 498 BUP * (uvert > 1) + 499 BDOWN * (dvert > 1), 1); 500 } 501 } 502 503 /* Print the vertical frame at the end of each row. */ 504 505 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : 506 sp->opts->opts & TBL_OPT_BOX ? 1 : 0; 507 if (sp->pos == TBL_SPAN_DATA && 508 uvert < sp->layout->last->vert && 509 sp->layout->last->col + 1 == sp->opts->cols) 510 uvert = dvert = sp->layout->last->vert; 511 if (sp->next != NULL && 512 dvert < sp->next->layout->last->vert && 513 sp->next->layout->last->col + 1 == sp->opts->cols) 514 dvert = sp->next->layout->last->vert; 515 if (sp->prev != NULL && 516 uvert < sp->prev->layout->last->vert && 517 sp->prev->layout->last->col + 1 == sp->opts->cols && 518 (horiz || (IS_HORIZ(sp->layout->last) && 519 !IS_HORIZ(sp->prev->layout->last)))) 520 uvert = sp->prev->layout->last->vert; 521 lhori = sp->pos == TBL_SPAN_DHORIZ || 522 (sp->last != NULL && 523 sp->last->pos == TBL_DATA_DHORIZ && 524 sp->last->layout->col + 1 == sp->opts->cols) || 525 (sp->layout->last->pos == TBL_CELL_DHORIZ && 526 sp->layout->last->col + 1 == sp->opts->cols) ? 2 : 527 sp->pos == TBL_SPAN_HORIZ || 528 (sp->last != NULL && 529 sp->last->pos == TBL_DATA_HORIZ && 530 sp->last->layout->col + 1 == sp->opts->cols) || 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 * lhori; 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 do { 539 tbl_direct_border(tp, 540 BHORIZ * lhori, 1); 541 } while (tp->viscol < tp->tcol->offset); 542 } 543 tbl_direct_border(tp, fc, 1); 544 } 545 (*tp->endline)(tp); 546 tp->viscol = 0; 547 } while (more); 548 549 /* 550 * Clean up after this row. If it is the last line 551 * of the table, print the box line and clean up 552 * column data; otherwise, print the allbox line. 553 */ 554 555 term_setcol(tp, 1); 556 tp->flags &= ~TERMP_MULTICOL; 557 tp->tcol->rmargin = tp->maxrmargin; 558 if (sp->next == NULL) { 559 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) { 560 tbl_hrule(tp, sp, NULL, TBL_OPT_BOX); 561 tp->skipvsp = 1; 562 } 563 if (tp->enc == TERMENC_ASCII && 564 sp->opts->opts & TBL_OPT_DBOX) { 565 tbl_hrule(tp, sp, NULL, TBL_OPT_DBOX); 566 tp->skipvsp = 2; 567 } 568 assert(tp->tbl.cols); 569 free(tp->tbl.cols); 570 tp->tbl.cols = NULL; 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->tcol->offset = save_offset; 577 tp->flags &= ~TERMP_NONOSPACE; 578} 579 580static void 581tbl_hrule(struct termp *tp, const struct tbl_span *spp, 582 const struct tbl_span *spn, int flags) 583{ 584 const struct tbl_cell *cpp; /* Layout cell above this line. */ 585 const struct tbl_cell *cpn; /* Layout cell below this line. */ 586 const struct tbl_dat *dpn; /* Data cell below this line. */ 587 const struct roffcol *col; /* Contains width and spacing. */ 588 int opts; /* For the table as a whole. */ 589 int bw; /* Box line width. */ 590 int hw; /* Horizontal line width. */ 591 int lw, rw; /* Left and right line widths. */ 592 int uw, dw; /* Vertical line widths. */ 593 594 cpp = spp == NULL ? NULL : spp->layout->first; 595 cpn = spn == NULL ? NULL : spn->layout->first; 596 dpn = NULL; 597 if (spn != NULL) { 598 if (spn->pos == TBL_SPAN_DATA) 599 dpn = spn->first; 600 else if (spn->next != NULL) 601 dpn = spn->next->first; 602 } 603 opts = spn == NULL ? spp->opts->opts : spn->opts->opts; 604 bw = opts & TBL_OPT_DBOX ? (tp->enc == TERMENC_UTF8 ? 2 : 1) : 605 opts & (TBL_OPT_BOX | TBL_OPT_ALLBOX) ? 1 : 0; 606 hw = flags == TBL_OPT_DBOX || flags == TBL_OPT_BOX ? bw : 607 spn->pos == TBL_SPAN_DHORIZ ? 2 : 1; 608 609 /* Print the left end of the line. */ 610 611 if (tp->viscol == 0) { 612 (*tp->advance)(tp, tp->tcols->offset); 613 tp->viscol = tp->tcols->offset; 614 } 615 if (flags != 0) 616 tbl_direct_border(tp, 617 (spp == NULL ? 0 : BUP * bw) + 618 (spn == NULL ? 0 : BDOWN * bw) + 619 (spp == NULL || cpn == NULL || 620 cpn->pos != TBL_CELL_DOWN ? BRIGHT * hw : 0), 1); 621 622 for (;;) { 623 col = tp->tbl.cols + (cpn == NULL ? cpp->col : cpn->col); 624 625 /* Print the horizontal line inside this column. */ 626 627 lw = cpp == NULL || cpn == NULL || 628 (cpn->pos != TBL_CELL_DOWN && 629 (dpn == NULL || strcmp(dpn->string, "\\^") != 0)) 630 ? hw : 0; 631 tbl_direct_border(tp, BHORIZ * lw, 632 col->width + col->spacing / 2); 633 634 /* 635 * Figure out whether a vertical line is crossing 636 * at the end of this column, 637 * and advance to the next column. 638 */ 639 640 uw = dw = 0; 641 if (cpp != NULL) { 642 if (flags != TBL_OPT_DBOX) { 643 uw = cpp->vert; 644 if (uw == 0 && opts & TBL_OPT_ALLBOX) 645 uw = 1; 646 } 647 cpp = cpp->next; 648 } 649 if (cpn != NULL) { 650 if (flags != TBL_OPT_DBOX) { 651 dw = cpn->vert; 652 if (dw == 0 && opts & TBL_OPT_ALLBOX) 653 dw = 1; 654 } 655 cpn = cpn->next; 656 while (dpn != NULL && dpn->layout != cpn) 657 dpn = dpn->next; 658 } 659 if (cpp == NULL && cpn == NULL) 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 || strcmp(dpn->string, "\\^") != 0)) 674 ? hw : 0; 675 676 /* The line crossing at the end of this column. */ 677 678 if (col->spacing) 679 tbl_direct_border(tp, BLEFT * lw + 680 BRIGHT * rw + BUP * uw + BDOWN * dw, 1); 681 682 /* 683 * In ASCII output, a crossing may print two characters. 684 */ 685 686 if (tp->enc != TERMENC_ASCII || (uw < 2 && dw < 2)) 687 uw = dw = 0; 688 if (col->spacing > 2) 689 tbl_direct_border(tp, 690 BHORIZ * rw + BUP * uw + BDOWN * dw, 1); 691 692 /* Padding before the start of the next column. */ 693 694 if (col->spacing > 4) 695 tbl_direct_border(tp, 696 BHORIZ * rw, (col->spacing - 3) / 2); 697 } 698 699 /* Print the right end of the line. */ 700 701 if (flags != 0) { 702 tbl_direct_border(tp, 703 (spp == NULL ? 0 : BUP * bw) + 704 (spn == NULL ? 0 : BDOWN * bw) + 705 (spp == NULL || spn == NULL || 706 spn->layout->last->pos != TBL_CELL_DOWN ? 707 BLEFT * hw : 0), 1); 708 (*tp->endline)(tp); 709 tp->viscol = 0; 710 } 711} 712 713static void 714tbl_data(struct termp *tp, const struct tbl_opts *opts, 715 const struct tbl_cell *cp, const struct tbl_dat *dp, 716 const struct roffcol *col) 717{ 718 switch (cp->pos) { 719 case TBL_CELL_HORIZ: 720 tbl_fill_border(tp, BHORIZ, col->width); 721 return; 722 case TBL_CELL_DHORIZ: 723 tbl_fill_border(tp, BHORIZ * 2, col->width); 724 return; 725 default: 726 break; 727 } 728 729 if (dp == NULL) 730 return; 731 732 switch (dp->pos) { 733 case TBL_DATA_NONE: 734 return; 735 case TBL_DATA_HORIZ: 736 case TBL_DATA_NHORIZ: 737 tbl_fill_border(tp, BHORIZ, col->width); 738 return; 739 case TBL_DATA_NDHORIZ: 740 case TBL_DATA_DHORIZ: 741 tbl_fill_border(tp, BHORIZ * 2, col->width); 742 return; 743 default: 744 break; 745 } 746 747 switch (cp->pos) { 748 case TBL_CELL_LONG: 749 case TBL_CELL_CENTRE: 750 case TBL_CELL_LEFT: 751 case TBL_CELL_RIGHT: 752 tbl_literal(tp, dp, col); 753 break; 754 case TBL_CELL_NUMBER: 755 tbl_number(tp, opts, dp, col); 756 break; 757 case TBL_CELL_DOWN: 758 case TBL_CELL_SPAN: 759 break; 760 default: 761 abort(); 762 } 763} 764 765static void 766tbl_fill_string(struct termp *tp, const char *cp, size_t len) 767{ 768 size_t i, sz; 769 770 sz = term_strlen(tp, cp); 771 for (i = 0; i < len; i += sz) 772 term_word(tp, cp); 773} 774 775static void 776tbl_fill_char(struct termp *tp, char c, size_t len) 777{ 778 char cp[2]; 779 780 cp[0] = c; 781 cp[1] = '\0'; 782 tbl_fill_string(tp, cp, len); 783} 784 785static void 786tbl_fill_border(struct termp *tp, int c, size_t len) 787{ 788 char buf[12]; 789 790 if ((c = borders_locale[c]) > 127) { 791 (void)snprintf(buf, sizeof(buf), "\\[u%04x]", c); 792 tbl_fill_string(tp, buf, len); 793 } else 794 tbl_fill_char(tp, c, len); 795} 796 797static void 798tbl_direct_border(struct termp *tp, int c, size_t len) 799{ 800 size_t i, sz; 801 802 c = borders_locale[c]; 803 sz = (*tp->width)(tp, c); 804 for (i = 0; i < len; i += sz) { 805 (*tp->letter)(tp, c); 806 tp->viscol += sz; 807 } 808} 809 810static void 811tbl_literal(struct termp *tp, const struct tbl_dat *dp, 812 const struct roffcol *col) 813{ 814 size_t len, padl, padr, width; 815 int ic, hspans; 816 817 assert(dp->string); 818 len = term_strlen(tp, dp->string); 819 width = col->width; 820 ic = dp->layout->col; 821 hspans = dp->hspans; 822 while (hspans--) 823 width += tp->tbl.cols[++ic].width + 3; 824 825 padr = width > len ? width - len : 0; 826 padl = 0; 827 828 switch (dp->layout->pos) { 829 case TBL_CELL_LONG: 830 padl = term_len(tp, 1); 831 padr = padr > padl ? padr - padl : 0; 832 break; 833 case TBL_CELL_CENTRE: 834 if (2 > padr) 835 break; 836 padl = padr / 2; 837 padr -= padl; 838 break; 839 case TBL_CELL_RIGHT: 840 padl = padr; 841 padr = 0; 842 break; 843 default: 844 break; 845 } 846 847 tbl_fill_char(tp, ASCII_NBRSP, padl); 848 tbl_word(tp, dp); 849 tbl_fill_char(tp, ASCII_NBRSP, padr); 850} 851 852static void 853tbl_number(struct termp *tp, const struct tbl_opts *opts, 854 const struct tbl_dat *dp, 855 const struct roffcol *col) 856{ 857 const char *cp, *lastdigit, *lastpoint; 858 size_t intsz, padl, totsz; 859 char buf[2]; 860 861 /* 862 * Almost the same code as in tblcalc_number(): 863 * First find the position of the decimal point. 864 */ 865 866 assert(dp->string); 867 lastdigit = lastpoint = NULL; 868 for (cp = dp->string; cp[0] != '\0'; cp++) { 869 if (cp[0] == '\\' && cp[1] == '&') { 870 lastdigit = lastpoint = cp; 871 break; 872 } else if (cp[0] == opts->decimal && 873 (isdigit((unsigned char)cp[1]) || 874 (cp > dp->string && isdigit((unsigned char)cp[-1])))) 875 lastpoint = cp; 876 else if (isdigit((unsigned char)cp[0])) 877 lastdigit = cp; 878 } 879 880 /* Then measure both widths. */ 881 882 padl = 0; 883 totsz = term_strlen(tp, dp->string); 884 if (lastdigit != NULL) { 885 if (lastpoint == NULL) 886 lastpoint = lastdigit + 1; 887 intsz = 0; 888 buf[1] = '\0'; 889 for (cp = dp->string; cp < lastpoint; cp++) { 890 buf[0] = cp[0]; 891 intsz += term_strlen(tp, buf); 892 } 893 894 /* 895 * Pad left to match the decimal position, 896 * but avoid exceeding the total column width. 897 */ 898 899 if (col->decimal > intsz && col->width > totsz) { 900 padl = col->decimal - intsz; 901 if (padl + totsz > col->width) 902 padl = col->width - totsz; 903 } 904 905 /* If it is not a number, simply center the string. */ 906 907 } else if (col->width > totsz) 908 padl = (col->width - totsz) / 2; 909 910 tbl_fill_char(tp, ASCII_NBRSP, padl); 911 tbl_word(tp, dp); 912 913 /* Pad right to fill the column. */ 914 915 if (col->width > padl + totsz) 916 tbl_fill_char(tp, ASCII_NBRSP, col->width - padl - totsz); 917} 918 919static void 920tbl_word(struct termp *tp, const struct tbl_dat *dp) 921{ 922 int prev_font; 923 924 prev_font = tp->fonti; 925 if (dp->layout->flags & TBL_CELL_BOLD) 926 term_fontpush(tp, TERMFONT_BOLD); 927 else if (dp->layout->flags & TBL_CELL_ITALIC) 928 term_fontpush(tp, TERMFONT_UNDER); 929 930 term_word(tp, dp->string); 931 932 term_fontpopq(tp, prev_font); 933} 934