1 /* $Id: tbl_term.c,v 1.72 2019/07/01 22:56:24 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 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 /* Tables leak .ta settings to subsequent text. */ 194 195 term_tab_set(tp, NULL); 196 coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || 197 sp->opts->lvert; 198 for (ic = 0; ic < sp->opts->cols; ic++) { 199 coloff += tp->tbl.cols[ic].width; 200 term_tab_iset(coloff); 201 coloff += tp->tbl.cols[ic].spacing; 202 } 203 204 /* Center the table as a whole. */ 205 206 offset = tp->tcol->offset; 207 if (sp->opts->opts & TBL_OPT_CENTRE) { 208 tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) 209 ? 2 : !!sp->opts->lvert + !!sp->opts->rvert; 210 for (ic = 0; ic + 1 < sp->opts->cols; ic++) 211 tsz += tp->tbl.cols[ic].width + 212 tp->tbl.cols[ic].spacing; 213 if (sp->opts->cols) 214 tsz += tp->tbl.cols[sp->opts->cols - 1].width; 215 if (offset + tsz > tp->tcol->rmargin) 216 tsz -= 1; 217 offset = offset + tp->tcol->rmargin > tsz ? 218 (offset + tp->tcol->rmargin - tsz) / 2 : 0; 219 tp->tcol->offset = offset; 220 } 221 222 /* Horizontal frame at the start of boxed tables. */ 223 224 if (tp->enc == TERMENC_ASCII && 225 sp->opts->opts & TBL_OPT_DBOX) 226 tbl_hrule(tp, NULL, sp, sp, TBL_OPT_DBOX); 227 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) 228 tbl_hrule(tp, NULL, sp, sp, TBL_OPT_BOX); 229 } 230 231 /* Set up the columns. */ 232 233 tp->flags |= TERMP_MULTICOL; 234 tp->tcol->offset = offset; 235 horiz = 0; 236 switch (sp->pos) { 237 case TBL_SPAN_HORIZ: 238 case TBL_SPAN_DHORIZ: 239 horiz = 1; 240 term_setcol(tp, 1); 241 break; 242 case TBL_SPAN_DATA: 243 term_setcol(tp, sp->opts->cols + 2); 244 coloff = tp->tcol->offset; 245 246 /* Set up a column for a left vertical frame. */ 247 248 if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || 249 sp->opts->lvert) 250 coloff++; 251 tp->tcol->rmargin = coloff; 252 253 /* Set up the data columns. */ 254 255 dp = sp->first; 256 hspans = 0; 257 for (ic = 0; ic < sp->opts->cols; ic++) { 258 if (hspans == 0) { 259 tp->tcol++; 260 tp->tcol->offset = coloff; 261 } 262 coloff += tp->tbl.cols[ic].width; 263 tp->tcol->rmargin = coloff; 264 if (ic + 1 < sp->opts->cols) 265 coloff += tp->tbl.cols[ic].spacing; 266 if (hspans) { 267 hspans--; 268 continue; 269 } 270 if (dp == NULL) 271 continue; 272 hspans = dp->hspans; 273 if (ic || sp->layout->first->pos != TBL_CELL_SPAN) 274 dp = dp->next; 275 } 276 277 /* Set up a column for a right vertical frame. */ 278 279 tp->tcol++; 280 tp->tcol->offset = coloff + 1; 281 tp->tcol->rmargin = tp->maxrmargin; 282 283 /* Spans may have reduced the number of columns. */ 284 285 tp->lasttcol = tp->tcol - tp->tcols; 286 287 /* Fill the buffers for all data columns. */ 288 289 tp->tcol = tp->tcols; 290 cp = cpn = sp->layout->first; 291 dp = sp->first; 292 hspans = 0; 293 for (ic = 0; ic < sp->opts->cols; ic++) { 294 if (cpn != NULL) { 295 cp = cpn; 296 cpn = cpn->next; 297 } 298 if (hspans) { 299 hspans--; 300 continue; 301 } 302 tp->tcol++; 303 tp->col = 0; 304 tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic); 305 if (dp == NULL) 306 continue; 307 hspans = dp->hspans; 308 if (cp->pos != TBL_CELL_SPAN) 309 dp = dp->next; 310 } 311 break; 312 } 313 314 do { 315 /* Print the vertical frame at the start of each row. */ 316 317 tp->tcol = tp->tcols; 318 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : 319 sp->opts->opts & TBL_OPT_BOX ? 1 : 0; 320 if (sp->pos == TBL_SPAN_DATA && uvert < sp->layout->vert) 321 uvert = dvert = sp->layout->vert; 322 if (sp->next != NULL && sp->next->pos == TBL_SPAN_DATA && 323 dvert < sp->next->layout->vert) 324 dvert = sp->next->layout->vert; 325 if (sp->prev != NULL && uvert < sp->prev->layout->vert && 326 (horiz || (IS_HORIZ(sp->layout->first) && 327 !IS_HORIZ(sp->prev->layout->first)))) 328 uvert = sp->prev->layout->vert; 329 rhori = sp->pos == TBL_SPAN_DHORIZ || 330 (sp->first != NULL && sp->first->pos == TBL_DATA_DHORIZ) || 331 sp->layout->first->pos == TBL_CELL_DHORIZ ? 2 : 332 sp->pos == TBL_SPAN_HORIZ || 333 (sp->first != NULL && sp->first->pos == TBL_DATA_HORIZ) || 334 sp->layout->first->pos == TBL_CELL_HORIZ ? 1 : 0; 335 fc = BUP * uvert + BDOWN * dvert + BRIGHT * rhori; 336 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->lvert)) { 337 (*tp->advance)(tp, tp->tcols->offset); 338 tp->viscol = tp->tcol->offset; 339 tbl_direct_border(tp, fc, 1); 340 } 341 342 /* Print the data cells. */ 343 344 more = 0; 345 if (horiz) 346 tbl_hrule(tp, sp->prev, sp, sp->next, 0); 347 else { 348 cp = sp->layout->first; 349 cpn = sp->next == NULL ? NULL : 350 sp->next->layout->first; 351 cpp = sp->prev == NULL ? NULL : 352 sp->prev->layout->first; 353 dp = sp->first; 354 hspans = 0; 355 for (ic = 0; ic < sp->opts->cols; ic++) { 356 357 /* 358 * Figure out whether to print a 359 * vertical line after this cell 360 * and advance to next layout cell. 361 */ 362 363 uvert = dvert = fc = 0; 364 if (cp != NULL) { 365 cps = cp; 366 while (cps->next != NULL && 367 cps->next->pos == TBL_CELL_SPAN) 368 cps = cps->next; 369 if (sp->pos == TBL_SPAN_DATA) 370 uvert = dvert = cps->vert; 371 switch (cp->pos) { 372 case TBL_CELL_HORIZ: 373 fc = BHORIZ; 374 break; 375 case TBL_CELL_DHORIZ: 376 fc = BHORIZ * 2; 377 break; 378 default: 379 break; 380 } 381 } 382 if (cpp != NULL) { 383 if (uvert < cpp->vert && 384 cp != NULL && 385 ((IS_HORIZ(cp) && 386 !IS_HORIZ(cpp)) || 387 (cp->next != NULL && 388 cpp->next != NULL && 389 IS_HORIZ(cp->next) && 390 !IS_HORIZ(cpp->next)))) 391 uvert = cpp->vert; 392 cpp = cpp->next; 393 } 394 if (sp->opts->opts & TBL_OPT_ALLBOX) { 395 if (uvert == 0) 396 uvert = 1; 397 if (dvert == 0) 398 dvert = 1; 399 } 400 if (cpn != NULL) { 401 if (dvert == 0 || 402 (dvert < cpn->vert && 403 tp->enc == TERMENC_UTF8)) 404 dvert = cpn->vert; 405 cpn = cpn->next; 406 } 407 408 lhori = (cp != NULL && 409 cp->pos == TBL_CELL_DHORIZ) || 410 (dp != NULL && 411 dp->pos == TBL_DATA_DHORIZ) ? 2 : 412 (cp != NULL && 413 cp->pos == TBL_CELL_HORIZ) || 414 (dp != NULL && 415 dp->pos == TBL_DATA_HORIZ) ? 1 : 0; 416 417 /* 418 * Skip later cells in a span, 419 * figure out whether to start a span, 420 * and advance to next data cell. 421 */ 422 423 if (hspans) { 424 hspans--; 425 cp = cp->next; 426 continue; 427 } 428 if (dp != NULL) { 429 hspans = dp->hspans; 430 if (ic || sp->layout->first->pos 431 != TBL_CELL_SPAN) 432 dp = dp->next; 433 } 434 435 /* 436 * Print one line of text in the cell 437 * and remember whether there is more. 438 */ 439 440 tp->tcol++; 441 if (tp->tcol->col < tp->tcol->lastcol) 442 term_flushln(tp); 443 if (tp->tcol->col < tp->tcol->lastcol) 444 more = 1; 445 446 /* 447 * Vertical frames between data cells, 448 * but not after the last column. 449 */ 450 451 if (fc == 0 && 452 ((uvert == 0 && dvert == 0 && 453 cp != NULL && (cp->next == NULL || 454 !IS_HORIZ(cp->next))) || 455 tp->tcol + 1 == 456 tp->tcols + tp->lasttcol)) { 457 if (cp != NULL) 458 cp = cp->next; 459 continue; 460 } 461 462 if (tp->viscol < tp->tcol->rmargin) { 463 (*tp->advance)(tp, tp->tcol->rmargin 464 - tp->viscol); 465 tp->viscol = tp->tcol->rmargin; 466 } 467 while (tp->viscol < tp->tcol->rmargin + 468 tp->tbl.cols[ic].spacing / 2) 469 tbl_direct_border(tp, 470 BHORIZ * lhori, 1); 471 472 if (tp->tcol + 1 == tp->tcols + tp->lasttcol) 473 continue; 474 475 if (cp != NULL) 476 cp = cp->next; 477 478 rhori = (cp != NULL && 479 cp->pos == TBL_CELL_DHORIZ) || 480 (dp != NULL && 481 dp->pos == TBL_DATA_DHORIZ) ? 2 : 482 (cp != NULL && 483 cp->pos == TBL_CELL_HORIZ) || 484 (dp != NULL && 485 dp->pos == TBL_DATA_HORIZ) ? 1 : 0; 486 487 if (tp->tbl.cols[ic].spacing) 488 tbl_direct_border(tp, 489 BLEFT * lhori + BRIGHT * rhori + 490 BUP * uvert + BDOWN * dvert, 1); 491 492 if (tp->enc == TERMENC_UTF8) 493 uvert = dvert = 0; 494 495 if (tp->tbl.cols[ic].spacing > 2 && 496 (uvert > 1 || dvert > 1 || rhori)) 497 tbl_direct_border(tp, 498 BHORIZ * rhori + 499 BUP * (uvert > 1) + 500 BDOWN * (dvert > 1), 1); 501 } 502 } 503 504 /* Print the vertical frame at the end of each row. */ 505 506 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : 507 sp->opts->opts & TBL_OPT_BOX ? 1 : 0; 508 if (sp->pos == TBL_SPAN_DATA && 509 uvert < sp->layout->last->vert && 510 sp->layout->last->col + 1 == sp->opts->cols) 511 uvert = dvert = sp->layout->last->vert; 512 if (sp->next != NULL && 513 dvert < sp->next->layout->last->vert && 514 sp->next->layout->last->col + 1 == sp->opts->cols) 515 dvert = sp->next->layout->last->vert; 516 if (sp->prev != NULL && 517 uvert < sp->prev->layout->last->vert && 518 sp->prev->layout->last->col + 1 == sp->opts->cols && 519 (horiz || (IS_HORIZ(sp->layout->last) && 520 !IS_HORIZ(sp->prev->layout->last)))) 521 uvert = sp->prev->layout->last->vert; 522 lhori = sp->pos == TBL_SPAN_DHORIZ || 523 (sp->last != NULL && 524 sp->last->pos == TBL_DATA_DHORIZ && 525 sp->last->layout->col + 1 == sp->opts->cols) || 526 (sp->layout->last->pos == TBL_CELL_DHORIZ && 527 sp->layout->last->col + 1 == sp->opts->cols) ? 2 : 528 sp->pos == TBL_SPAN_HORIZ || 529 (sp->last != NULL && 530 sp->last->pos == TBL_DATA_HORIZ && 531 sp->last->layout->col + 1 == sp->opts->cols) || 532 (sp->layout->last->pos == TBL_CELL_HORIZ && 533 sp->layout->last->col + 1 == sp->opts->cols) ? 1 : 0; 534 fc = BUP * uvert + BDOWN * dvert + BLEFT * lhori; 535 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->rvert)) { 536 if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 || 537 sp->layout->last->col + 1 < sp->opts->cols)) { 538 tp->tcol++; 539 do { 540 tbl_direct_border(tp, 541 BHORIZ * lhori, 1); 542 } while (tp->viscol < tp->tcol->offset); 543 } 544 tbl_direct_border(tp, fc, 1); 545 } 546 (*tp->endline)(tp); 547 tp->viscol = 0; 548 } while (more); 549 550 /* 551 * Clean up after this row. If it is the last line 552 * of the table, print the box line and clean up 553 * column data; otherwise, print the allbox line. 554 */ 555 556 term_setcol(tp, 1); 557 tp->flags &= ~TERMP_MULTICOL; 558 tp->tcol->rmargin = tp->maxrmargin; 559 if (sp->next == NULL) { 560 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) { 561 tbl_hrule(tp, sp, sp, NULL, TBL_OPT_BOX); 562 tp->skipvsp = 1; 563 } 564 if (tp->enc == TERMENC_ASCII && 565 sp->opts->opts & TBL_OPT_DBOX) { 566 tbl_hrule(tp, sp, sp, NULL, TBL_OPT_DBOX); 567 tp->skipvsp = 2; 568 } 569 assert(tp->tbl.cols); 570 free(tp->tbl.cols); 571 tp->tbl.cols = NULL; 572 } else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX && 573 (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA || 574 sp->next->next != NULL)) 575 tbl_hrule(tp, sp, sp, sp->next, TBL_OPT_ALLBOX); 576 577 tp->tcol->offset = save_offset; 578 tp->flags &= ~TERMP_NONOSPACE; 579 } 580 581 static void 582 tbl_hrule(struct termp *tp, const struct tbl_span *spp, 583 const struct tbl_span *sp, const struct tbl_span *spn, int flags) 584 { 585 const struct tbl_cell *cpp; /* Layout cell above this line. */ 586 const struct tbl_cell *cp; /* Layout cell in this line. */ 587 const struct tbl_cell *cpn; /* Layout cell below this line. */ 588 const struct tbl_dat *dpn; /* Data cell below this line. */ 589 const struct roffcol *col; /* Contains width and spacing. */ 590 int opts; /* For the table as a whole. */ 591 int bw; /* Box line width. */ 592 int hw; /* Horizontal line width. */ 593 int lw, rw; /* Left and right line widths. */ 594 int uw, dw; /* Vertical line widths. */ 595 596 cpp = spp == NULL ? NULL : spp->layout->first; 597 cp = sp == NULL ? NULL : sp->layout->first; 598 cpn = spn == NULL ? NULL : spn->layout->first; 599 dpn = NULL; 600 if (spn != NULL) { 601 if (spn->pos == TBL_SPAN_DATA) 602 dpn = spn->first; 603 else if (spn->next != NULL) 604 dpn = spn->next->first; 605 } 606 opts = sp->opts->opts; 607 bw = opts & TBL_OPT_DBOX ? (tp->enc == TERMENC_UTF8 ? 2 : 1) : 608 opts & (TBL_OPT_BOX | TBL_OPT_ALLBOX) ? 1 : 0; 609 hw = flags == TBL_OPT_DBOX || flags == TBL_OPT_BOX ? bw : 610 sp->pos == TBL_SPAN_DHORIZ ? 2 : 1; 611 612 /* Print the left end of the line. */ 613 614 if (tp->viscol == 0) { 615 (*tp->advance)(tp, tp->tcols->offset); 616 tp->viscol = tp->tcols->offset; 617 } 618 if (flags != 0) 619 tbl_direct_border(tp, 620 (spp == NULL ? 0 : BUP * bw) + 621 (spn == NULL ? 0 : BDOWN * bw) + 622 (spp == NULL || cpn == NULL || 623 cpn->pos != TBL_CELL_DOWN ? BRIGHT * hw : 0), 1); 624 625 col = tp->tbl.cols; 626 for (;;) { 627 if (cp == NULL) 628 col++; 629 else 630 col = tp->tbl.cols + cp->col; 631 632 /* Print the horizontal line inside this column. */ 633 634 lw = cpp == NULL || cpn == NULL || 635 (cpn->pos != TBL_CELL_DOWN && 636 (dpn == NULL || dpn->string == NULL || 637 strcmp(dpn->string, "\\^") != 0)) 638 ? hw : 0; 639 tbl_direct_border(tp, BHORIZ * lw, 640 col->width + col->spacing / 2); 641 642 /* 643 * Figure out whether a vertical line is crossing 644 * at the end of this column, 645 * and advance to the next column. 646 */ 647 648 uw = dw = 0; 649 if (cpp != NULL) { 650 if (flags != TBL_OPT_DBOX) { 651 uw = cpp->vert; 652 if (uw == 0 && opts & TBL_OPT_ALLBOX) 653 uw = 1; 654 } 655 cpp = cpp->next; 656 } else if (spp != NULL && opts & TBL_OPT_ALLBOX) 657 uw = 1; 658 if (cp != NULL) 659 cp = cp->next; 660 if (cpn != NULL) { 661 if (flags != TBL_OPT_DBOX) { 662 dw = cpn->vert; 663 if (dw == 0 && opts & TBL_OPT_ALLBOX) 664 dw = 1; 665 } 666 cpn = cpn->next; 667 while (dpn != NULL && dpn->layout != cpn) 668 dpn = dpn->next; 669 } else if (spn != NULL && opts & TBL_OPT_ALLBOX) 670 dw = 1; 671 if (col + 1 == tp->tbl.cols + sp->opts->cols) 672 break; 673 674 /* Vertical lines do not cross spanned cells. */ 675 676 if (cpp != NULL && cpp->pos == TBL_CELL_SPAN) 677 uw = 0; 678 if (cpn != NULL && cpn->pos == TBL_CELL_SPAN) 679 dw = 0; 680 681 /* The horizontal line inside the next column. */ 682 683 rw = cpp == NULL || cpn == NULL || 684 (cpn->pos != TBL_CELL_DOWN && 685 (dpn == NULL || dpn->string == NULL || 686 strcmp(dpn->string, "\\^") != 0)) 687 ? hw : 0; 688 689 /* The line crossing at the end of this column. */ 690 691 if (col->spacing) 692 tbl_direct_border(tp, BLEFT * lw + 693 BRIGHT * rw + BUP * uw + BDOWN * dw, 1); 694 695 /* 696 * In ASCII output, a crossing may print two characters. 697 */ 698 699 if (tp->enc != TERMENC_ASCII || (uw < 2 && dw < 2)) 700 uw = dw = 0; 701 if (col->spacing > 2) 702 tbl_direct_border(tp, 703 BHORIZ * rw + BUP * uw + BDOWN * dw, 1); 704 705 /* Padding before the start of the next column. */ 706 707 if (col->spacing > 4) 708 tbl_direct_border(tp, 709 BHORIZ * rw, (col->spacing - 3) / 2); 710 } 711 712 /* Print the right end of the line. */ 713 714 if (flags != 0) { 715 tbl_direct_border(tp, 716 (spp == NULL ? 0 : BUP * bw) + 717 (spn == NULL ? 0 : BDOWN * bw) + 718 (spp == NULL || spn == NULL || 719 spn->layout->last->pos != TBL_CELL_DOWN ? 720 BLEFT * hw : 0), 1); 721 (*tp->endline)(tp); 722 tp->viscol = 0; 723 } 724 } 725 726 static void 727 tbl_data(struct termp *tp, const struct tbl_opts *opts, 728 const struct tbl_cell *cp, const struct tbl_dat *dp, 729 const struct roffcol *col) 730 { 731 switch (cp->pos) { 732 case TBL_CELL_HORIZ: 733 tbl_fill_border(tp, BHORIZ, col->width); 734 return; 735 case TBL_CELL_DHORIZ: 736 tbl_fill_border(tp, BHORIZ * 2, col->width); 737 return; 738 default: 739 break; 740 } 741 742 if (dp == NULL) 743 return; 744 745 switch (dp->pos) { 746 case TBL_DATA_NONE: 747 return; 748 case TBL_DATA_HORIZ: 749 case TBL_DATA_NHORIZ: 750 tbl_fill_border(tp, BHORIZ, col->width); 751 return; 752 case TBL_DATA_NDHORIZ: 753 case TBL_DATA_DHORIZ: 754 tbl_fill_border(tp, BHORIZ * 2, col->width); 755 return; 756 default: 757 break; 758 } 759 760 switch (cp->pos) { 761 case TBL_CELL_LONG: 762 case TBL_CELL_CENTRE: 763 case TBL_CELL_LEFT: 764 case TBL_CELL_RIGHT: 765 tbl_literal(tp, dp, col); 766 break; 767 case TBL_CELL_NUMBER: 768 tbl_number(tp, opts, dp, col); 769 break; 770 case TBL_CELL_DOWN: 771 case TBL_CELL_SPAN: 772 break; 773 default: 774 abort(); 775 } 776 } 777 778 static void 779 tbl_fill_string(struct termp *tp, const char *cp, size_t len) 780 { 781 size_t i, sz; 782 783 sz = term_strlen(tp, cp); 784 for (i = 0; i < len; i += sz) 785 term_word(tp, cp); 786 } 787 788 static void 789 tbl_fill_char(struct termp *tp, char c, size_t len) 790 { 791 char cp[2]; 792 793 cp[0] = c; 794 cp[1] = '\0'; 795 tbl_fill_string(tp, cp, len); 796 } 797 798 static void 799 tbl_fill_border(struct termp *tp, int c, size_t len) 800 { 801 char buf[12]; 802 803 if ((c = borders_locale[c]) > 127) { 804 (void)snprintf(buf, sizeof(buf), "\\[u%04x]", c); 805 tbl_fill_string(tp, buf, len); 806 } else 807 tbl_fill_char(tp, c, len); 808 } 809 810 static void 811 tbl_direct_border(struct termp *tp, int c, size_t len) 812 { 813 size_t i, sz; 814 815 c = borders_locale[c]; 816 sz = (*tp->width)(tp, c); 817 for (i = 0; i < len; i += sz) { 818 (*tp->letter)(tp, c); 819 tp->viscol += sz; 820 } 821 } 822 823 static void 824 tbl_literal(struct termp *tp, const struct tbl_dat *dp, 825 const struct roffcol *col) 826 { 827 size_t len, padl, padr, width; 828 int ic, hspans; 829 830 assert(dp->string); 831 len = term_strlen(tp, dp->string); 832 width = col->width; 833 ic = dp->layout->col; 834 hspans = dp->hspans; 835 while (hspans--) 836 width += tp->tbl.cols[++ic].width + 3; 837 838 padr = width > len ? width - len : 0; 839 padl = 0; 840 841 switch (dp->layout->pos) { 842 case TBL_CELL_LONG: 843 padl = term_len(tp, 1); 844 padr = padr > padl ? padr - padl : 0; 845 break; 846 case TBL_CELL_CENTRE: 847 if (2 > padr) 848 break; 849 padl = padr / 2; 850 padr -= padl; 851 break; 852 case TBL_CELL_RIGHT: 853 padl = padr; 854 padr = 0; 855 break; 856 default: 857 break; 858 } 859 860 tbl_fill_char(tp, ASCII_NBRSP, padl); 861 tbl_word(tp, dp); 862 tbl_fill_char(tp, ASCII_NBRSP, padr); 863 } 864 865 static void 866 tbl_number(struct termp *tp, const struct tbl_opts *opts, 867 const struct tbl_dat *dp, 868 const struct roffcol *col) 869 { 870 const char *cp, *lastdigit, *lastpoint; 871 size_t intsz, padl, totsz; 872 char buf[2]; 873 874 /* 875 * Almost the same code as in tblcalc_number(): 876 * First find the position of the decimal point. 877 */ 878 879 assert(dp->string); 880 lastdigit = lastpoint = NULL; 881 for (cp = dp->string; cp[0] != '\0'; cp++) { 882 if (cp[0] == '\\' && cp[1] == '&') { 883 lastdigit = lastpoint = cp; 884 break; 885 } else if (cp[0] == opts->decimal && 886 (isdigit((unsigned char)cp[1]) || 887 (cp > dp->string && isdigit((unsigned char)cp[-1])))) 888 lastpoint = cp; 889 else if (isdigit((unsigned char)cp[0])) 890 lastdigit = cp; 891 } 892 893 /* Then measure both widths. */ 894 895 padl = 0; 896 totsz = term_strlen(tp, dp->string); 897 if (lastdigit != NULL) { 898 if (lastpoint == NULL) 899 lastpoint = lastdigit + 1; 900 intsz = 0; 901 buf[1] = '\0'; 902 for (cp = dp->string; cp < lastpoint; cp++) { 903 buf[0] = cp[0]; 904 intsz += term_strlen(tp, buf); 905 } 906 907 /* 908 * Pad left to match the decimal position, 909 * but avoid exceeding the total column width. 910 */ 911 912 if (col->decimal > intsz && col->width > totsz) { 913 padl = col->decimal - intsz; 914 if (padl + totsz > col->width) 915 padl = col->width - totsz; 916 } 917 918 /* If it is not a number, simply center the string. */ 919 920 } else if (col->width > totsz) 921 padl = (col->width - totsz) / 2; 922 923 tbl_fill_char(tp, ASCII_NBRSP, padl); 924 tbl_word(tp, dp); 925 926 /* Pad right to fill the column. */ 927 928 if (col->width > padl + totsz) 929 tbl_fill_char(tp, ASCII_NBRSP, col->width - padl - totsz); 930 } 931 932 static void 933 tbl_word(struct termp *tp, const struct tbl_dat *dp) 934 { 935 int prev_font; 936 937 prev_font = tp->fonti; 938 if (dp->layout->flags & TBL_CELL_BOLD) 939 term_fontpush(tp, TERMFONT_BOLD); 940 else if (dp->layout->flags & TBL_CELL_ITALIC) 941 term_fontpush(tp, TERMFONT_UNDER); 942 943 term_word(tp, dp->string); 944 945 term_fontpopq(tp, prev_font); 946 } 947