1 /* $OpenBSD: tbl_term.c,v 1.61 2020/01/11 16:24:33 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2011-2020 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 <sys/types.h> 19 20 #include <assert.h> 21 #include <ctype.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 26 #include "mandoc.h" 27 #include "tbl.h" 28 #include "out.h" 29 #include "term.h" 30 31 #define IS_HORIZ(cp) ((cp)->pos == TBL_CELL_HORIZ || \ 32 (cp)->pos == TBL_CELL_DHORIZ) 33 34 35 static size_t term_tbl_len(size_t, void *); 36 static size_t term_tbl_strlen(const char *, void *); 37 static size_t term_tbl_sulen(const struct roffsu *, void *); 38 static void tbl_data(struct termp *, const struct tbl_opts *, 39 const struct tbl_cell *, 40 const struct tbl_dat *, 41 const struct roffcol *); 42 static void tbl_direct_border(struct termp *, int, size_t); 43 static void tbl_fill_border(struct termp *, int, size_t); 44 static void tbl_fill_char(struct termp *, char, size_t); 45 static void tbl_fill_string(struct termp *, const char *, size_t); 46 static void tbl_hrule(struct termp *, const struct tbl_span *, 47 const struct tbl_span *, const struct tbl_span *, 48 int); 49 static void tbl_literal(struct termp *, const struct tbl_dat *, 50 const struct roffcol *); 51 static void tbl_number(struct termp *, const struct tbl_opts *, 52 const struct tbl_dat *, 53 const struct roffcol *); 54 static void tbl_word(struct termp *, const struct tbl_dat *); 55 56 57 /* 58 * The following border-character tables are indexed 59 * by ternary (3-based) numbers, as opposed to binary or decimal. 60 * Each ternary digit describes the line width in one direction: 61 * 0 means no line, 1 single or light line, 2 double or heavy line. 62 */ 63 64 /* Positional values of the four directions. */ 65 #define BRIGHT 1 66 #define BDOWN 3 67 #define BLEFT (3 * 3) 68 #define BUP (3 * 3 * 3) 69 #define BHORIZ (BLEFT + BRIGHT) 70 71 /* Code points to use for each combination of widths. */ 72 static const int borders_utf8[81] = { 73 0x0020, 0x2576, 0x257a, /* 000 right */ 74 0x2577, 0x250c, 0x250d, /* 001 down */ 75 0x257b, 0x250e, 0x250f, /* 002 */ 76 0x2574, 0x2500, 0x257c, /* 010 left */ 77 0x2510, 0x252c, 0x252e, /* 011 left down */ 78 0x2512, 0x2530, 0x2532, /* 012 */ 79 0x2578, 0x257e, 0x2501, /* 020 left */ 80 0x2511, 0x252d, 0x252f, /* 021 left down */ 81 0x2513, 0x2531, 0x2533, /* 022 */ 82 0x2575, 0x2514, 0x2515, /* 100 up */ 83 0x2502, 0x251c, 0x251d, /* 101 up down */ 84 0x257d, 0x251f, 0x2522, /* 102 */ 85 0x2518, 0x2534, 0x2536, /* 110 up left */ 86 0x2524, 0x253c, 0x253e, /* 111 all */ 87 0x2527, 0x2541, 0x2546, /* 112 */ 88 0x2519, 0x2535, 0x2537, /* 120 up left */ 89 0x2525, 0x253d, 0x253f, /* 121 all */ 90 0x252a, 0x2545, 0x2548, /* 122 */ 91 0x2579, 0x2516, 0x2517, /* 200 up */ 92 0x257f, 0x251e, 0x2521, /* 201 up down */ 93 0x2503, 0x2520, 0x2523, /* 202 */ 94 0x251a, 0x2538, 0x253a, /* 210 up left */ 95 0x2526, 0x2540, 0x2544, /* 211 all */ 96 0x2528, 0x2542, 0x254a, /* 212 */ 97 0x251b, 0x2539, 0x253b, /* 220 up left */ 98 0x2529, 0x2543, 0x2547, /* 221 all */ 99 0x252b, 0x2549, 0x254b, /* 222 */ 100 }; 101 102 /* ASCII approximations for these code points, compatible with groff. */ 103 static const int borders_ascii[81] = { 104 ' ', '-', '=', /* 000 right */ 105 '|', '+', '+', /* 001 down */ 106 '|', '+', '+', /* 002 */ 107 '-', '-', '=', /* 010 left */ 108 '+', '+', '+', /* 011 left down */ 109 '+', '+', '+', /* 012 */ 110 '=', '=', '=', /* 020 left */ 111 '+', '+', '+', /* 021 left down */ 112 '+', '+', '+', /* 022 */ 113 '|', '+', '+', /* 100 up */ 114 '|', '+', '+', /* 101 up down */ 115 '|', '+', '+', /* 102 */ 116 '+', '+', '+', /* 110 up left */ 117 '+', '+', '+', /* 111 all */ 118 '+', '+', '+', /* 112 */ 119 '+', '+', '+', /* 120 up left */ 120 '+', '+', '+', /* 121 all */ 121 '+', '+', '+', /* 122 */ 122 '|', '+', '+', /* 200 up */ 123 '|', '+', '+', /* 201 up down */ 124 '|', '+', '+', /* 202 */ 125 '+', '+', '+', /* 210 up left */ 126 '+', '+', '+', /* 211 all */ 127 '+', '+', '+', /* 212 */ 128 '+', '+', '+', /* 220 up left */ 129 '+', '+', '+', /* 221 all */ 130 '+', '+', '+', /* 222 */ 131 }; 132 133 /* Either of the above according to the selected output encoding. */ 134 static const int *borders_locale; 135 136 137 static size_t 138 term_tbl_sulen(const struct roffsu *su, void *arg) 139 { 140 int i; 141 142 i = term_hen((const struct termp *)arg, su); 143 return i > 0 ? i : 0; 144 } 145 146 static size_t 147 term_tbl_strlen(const char *p, void *arg) 148 { 149 return term_strlen((const struct termp *)arg, p); 150 } 151 152 static size_t 153 term_tbl_len(size_t sz, void *arg) 154 { 155 return term_len((const struct termp *)arg, sz); 156 } 157 158 159 void 160 term_tbl(struct termp *tp, const struct tbl_span *sp) 161 { 162 const struct tbl_cell *cp, *cpn, *cpp, *cps; 163 const struct tbl_dat *dp; 164 static size_t offset; 165 size_t save_offset; 166 size_t coloff, tsz; 167 int hspans, ic, more; 168 int dvert, fc, horiz, lhori, rhori, uvert; 169 170 /* Inhibit printing of spaces: we do padding ourselves. */ 171 172 tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE; 173 save_offset = tp->tcol->offset; 174 175 /* 176 * The first time we're invoked for a given table block, 177 * calculate the table widths and decimal positions. 178 */ 179 180 if (tp->tbl.cols == NULL) { 181 borders_locale = tp->enc == TERMENC_UTF8 ? 182 borders_utf8 : borders_ascii; 183 184 tp->tbl.len = term_tbl_len; 185 tp->tbl.slen = term_tbl_strlen; 186 tp->tbl.sulen = term_tbl_sulen; 187 tp->tbl.arg = tp; 188 189 tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin); 190 191 /* Tables leak .ta settings to subsequent text. */ 192 193 term_tab_set(tp, NULL); 194 coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || 195 sp->opts->lvert; 196 for (ic = 0; ic < sp->opts->cols; ic++) { 197 coloff += tp->tbl.cols[ic].width; 198 term_tab_iset(coloff); 199 coloff += tp->tbl.cols[ic].spacing; 200 } 201 202 /* Center the table as a whole. */ 203 204 offset = tp->tcol->offset; 205 if (sp->opts->opts & TBL_OPT_CENTRE) { 206 tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) 207 ? 2 : !!sp->opts->lvert + !!sp->opts->rvert; 208 for (ic = 0; ic + 1 < sp->opts->cols; ic++) 209 tsz += tp->tbl.cols[ic].width + 210 tp->tbl.cols[ic].spacing; 211 if (sp->opts->cols) 212 tsz += tp->tbl.cols[sp->opts->cols - 1].width; 213 if (offset + tsz > tp->tcol->rmargin) 214 tsz -= 1; 215 offset = offset + tp->tcol->rmargin > tsz ? 216 (offset + tp->tcol->rmargin - tsz) / 2 : 0; 217 tp->tcol->offset = offset; 218 } 219 220 /* Horizontal frame at the start of boxed tables. */ 221 222 if (tp->enc == TERMENC_ASCII && 223 sp->opts->opts & TBL_OPT_DBOX) 224 tbl_hrule(tp, NULL, sp, sp, TBL_OPT_DBOX); 225 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) 226 tbl_hrule(tp, NULL, sp, sp, TBL_OPT_BOX); 227 } 228 229 /* Set up the columns. */ 230 231 tp->flags |= TERMP_MULTICOL; 232 tp->tcol->offset = offset; 233 horiz = 0; 234 switch (sp->pos) { 235 case TBL_SPAN_HORIZ: 236 case TBL_SPAN_DHORIZ: 237 horiz = 1; 238 term_setcol(tp, 1); 239 break; 240 case TBL_SPAN_DATA: 241 term_setcol(tp, sp->opts->cols + 2); 242 coloff = tp->tcol->offset; 243 244 /* Set up a column for a left vertical frame. */ 245 246 if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || 247 sp->opts->lvert) 248 coloff++; 249 tp->tcol->rmargin = coloff; 250 251 /* Set up the data columns. */ 252 253 dp = sp->first; 254 hspans = 0; 255 for (ic = 0; ic < sp->opts->cols; ic++) { 256 if (hspans == 0) { 257 tp->tcol++; 258 tp->tcol->offset = coloff; 259 } 260 coloff += tp->tbl.cols[ic].width; 261 tp->tcol->rmargin = coloff; 262 if (ic + 1 < sp->opts->cols) 263 coloff += tp->tbl.cols[ic].spacing; 264 if (hspans) { 265 hspans--; 266 continue; 267 } 268 if (dp != NULL && 269 (ic || sp->layout->first->pos != TBL_CELL_SPAN)) { 270 hspans = dp->hspans; 271 dp = dp->next; 272 } 273 } 274 275 /* Set up a column for a right vertical frame. */ 276 277 tp->tcol++; 278 tp->tcol->offset = coloff + 1; 279 tp->tcol->rmargin = tp->maxrmargin; 280 281 /* Spans may have reduced the number of columns. */ 282 283 tp->lasttcol = tp->tcol - tp->tcols; 284 285 /* Fill the buffers for all data columns. */ 286 287 tp->tcol = tp->tcols; 288 cp = cpn = sp->layout->first; 289 dp = sp->first; 290 hspans = 0; 291 for (ic = 0; ic < sp->opts->cols; ic++) { 292 if (cpn != NULL) { 293 cp = cpn; 294 cpn = cpn->next; 295 } 296 if (hspans) { 297 hspans--; 298 continue; 299 } 300 tp->tcol++; 301 tp->col = 0; 302 tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic); 303 if (dp != NULL && 304 (ic || sp->layout->first->pos != TBL_CELL_SPAN)) { 305 hspans = dp->hspans; 306 dp = dp->next; 307 } 308 } 309 break; 310 } 311 312 do { 313 /* Print the vertical frame at the start of each row. */ 314 315 tp->tcol = tp->tcols; 316 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : 317 sp->opts->opts & TBL_OPT_BOX ? 1 : 0; 318 if (sp->pos == TBL_SPAN_DATA && uvert < sp->layout->vert) 319 uvert = dvert = sp->layout->vert; 320 if (sp->next != NULL && sp->next->pos == TBL_SPAN_DATA && 321 dvert < sp->next->layout->vert) 322 dvert = sp->next->layout->vert; 323 if (sp->prev != NULL && uvert < sp->prev->layout->vert && 324 (horiz || (IS_HORIZ(sp->layout->first) && 325 !IS_HORIZ(sp->prev->layout->first)))) 326 uvert = sp->prev->layout->vert; 327 rhori = sp->pos == TBL_SPAN_DHORIZ || 328 (sp->first != NULL && sp->first->pos == TBL_DATA_DHORIZ) || 329 sp->layout->first->pos == TBL_CELL_DHORIZ ? 2 : 330 sp->pos == TBL_SPAN_HORIZ || 331 (sp->first != NULL && sp->first->pos == TBL_DATA_HORIZ) || 332 sp->layout->first->pos == TBL_CELL_HORIZ ? 1 : 0; 333 fc = BUP * uvert + BDOWN * dvert + BRIGHT * rhori; 334 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->lvert)) { 335 (*tp->advance)(tp, tp->tcols->offset); 336 tp->viscol = tp->tcol->offset; 337 tbl_direct_border(tp, fc, 1); 338 } 339 340 /* Print the data cells. */ 341 342 more = 0; 343 if (horiz) 344 tbl_hrule(tp, sp->prev, sp, sp->next, 0); 345 else { 346 cp = sp->layout->first; 347 cpn = sp->next == NULL ? NULL : 348 sp->next->layout->first; 349 cpp = sp->prev == NULL ? NULL : 350 sp->prev->layout->first; 351 dp = sp->first; 352 hspans = 0; 353 for (ic = 0; ic < sp->opts->cols; ic++) { 354 355 /* 356 * Figure out whether to print a 357 * vertical line after this cell 358 * and advance to next layout cell. 359 */ 360 361 uvert = dvert = fc = 0; 362 if (cp != NULL) { 363 cps = cp; 364 while (cps->next != NULL && 365 cps->next->pos == TBL_CELL_SPAN) 366 cps = cps->next; 367 if (sp->pos == TBL_SPAN_DATA) 368 uvert = dvert = cps->vert; 369 switch (cp->pos) { 370 case TBL_CELL_HORIZ: 371 fc = BHORIZ; 372 break; 373 case TBL_CELL_DHORIZ: 374 fc = BHORIZ * 2; 375 break; 376 default: 377 break; 378 } 379 } 380 if (cpp != NULL) { 381 if (uvert < cpp->vert && 382 cp != NULL && 383 ((IS_HORIZ(cp) && 384 !IS_HORIZ(cpp)) || 385 (cp->next != NULL && 386 cpp->next != NULL && 387 IS_HORIZ(cp->next) && 388 !IS_HORIZ(cpp->next)))) 389 uvert = cpp->vert; 390 cpp = cpp->next; 391 } 392 if (sp->opts->opts & TBL_OPT_ALLBOX) { 393 if (uvert == 0) 394 uvert = 1; 395 if (dvert == 0) 396 dvert = 1; 397 } 398 if (cpn != NULL) { 399 if (dvert == 0 || 400 (dvert < cpn->vert && 401 tp->enc == TERMENC_UTF8)) 402 dvert = cpn->vert; 403 cpn = cpn->next; 404 } 405 406 lhori = (cp != NULL && 407 cp->pos == TBL_CELL_DHORIZ) || 408 (dp != NULL && 409 dp->pos == TBL_DATA_DHORIZ) ? 2 : 410 (cp != NULL && 411 cp->pos == TBL_CELL_HORIZ) || 412 (dp != NULL && 413 dp->pos == TBL_DATA_HORIZ) ? 1 : 0; 414 415 /* 416 * Skip later cells in a span, 417 * figure out whether to start a span, 418 * and advance to next data cell. 419 */ 420 421 if (hspans) { 422 hspans--; 423 cp = cp->next; 424 continue; 425 } 426 if (dp != NULL && (ic || 427 sp->layout->first->pos != TBL_CELL_SPAN)) { 428 hspans = dp->hspans; 429 dp = dp->next; 430 } 431 432 /* 433 * Print one line of text in the cell 434 * and remember whether there is more. 435 */ 436 437 tp->tcol++; 438 if (tp->tcol->col < tp->tcol->lastcol) 439 term_flushln(tp); 440 if (tp->tcol->col < tp->tcol->lastcol) 441 more = 1; 442 443 /* 444 * Vertical frames between data cells, 445 * but not after the last column. 446 */ 447 448 if (fc == 0 && 449 ((uvert == 0 && dvert == 0 && 450 cp != NULL && (cp->next == NULL || 451 !IS_HORIZ(cp->next))) || 452 tp->tcol + 1 == 453 tp->tcols + tp->lasttcol)) { 454 if (cp != NULL) 455 cp = cp->next; 456 continue; 457 } 458 459 if (tp->viscol < tp->tcol->rmargin) { 460 (*tp->advance)(tp, tp->tcol->rmargin 461 - tp->viscol); 462 tp->viscol = tp->tcol->rmargin; 463 } 464 while (tp->viscol < tp->tcol->rmargin + 465 tp->tbl.cols[ic].spacing / 2) 466 tbl_direct_border(tp, 467 BHORIZ * lhori, 1); 468 469 if (tp->tcol + 1 == tp->tcols + tp->lasttcol) 470 continue; 471 472 if (cp != NULL) 473 cp = cp->next; 474 475 rhori = (cp != NULL && 476 cp->pos == TBL_CELL_DHORIZ) || 477 (dp != NULL && 478 dp->pos == TBL_DATA_DHORIZ) ? 2 : 479 (cp != NULL && 480 cp->pos == TBL_CELL_HORIZ) || 481 (dp != NULL && 482 dp->pos == TBL_DATA_HORIZ) ? 1 : 0; 483 484 if (tp->tbl.cols[ic].spacing) 485 tbl_direct_border(tp, 486 BLEFT * lhori + BRIGHT * rhori + 487 BUP * uvert + BDOWN * dvert, 1); 488 489 if (tp->enc == TERMENC_UTF8) 490 uvert = dvert = 0; 491 492 if (tp->tbl.cols[ic].spacing > 2 && 493 (uvert > 1 || dvert > 1 || rhori)) 494 tbl_direct_border(tp, 495 BHORIZ * rhori + 496 BUP * (uvert > 1) + 497 BDOWN * (dvert > 1), 1); 498 } 499 } 500 501 /* Print the vertical frame at the end of each row. */ 502 503 uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : 504 sp->opts->opts & TBL_OPT_BOX ? 1 : 0; 505 if (sp->pos == TBL_SPAN_DATA && 506 uvert < sp->layout->last->vert && 507 sp->layout->last->col + 1 == sp->opts->cols) 508 uvert = dvert = sp->layout->last->vert; 509 if (sp->next != NULL && 510 dvert < sp->next->layout->last->vert && 511 sp->next->layout->last->col + 1 == sp->opts->cols) 512 dvert = sp->next->layout->last->vert; 513 if (sp->prev != NULL && 514 uvert < sp->prev->layout->last->vert && 515 sp->prev->layout->last->col + 1 == sp->opts->cols && 516 (horiz || (IS_HORIZ(sp->layout->last) && 517 !IS_HORIZ(sp->prev->layout->last)))) 518 uvert = sp->prev->layout->last->vert; 519 lhori = sp->pos == TBL_SPAN_DHORIZ || 520 (sp->last != NULL && 521 sp->last->pos == TBL_DATA_DHORIZ && 522 sp->last->layout->col + 1 == sp->opts->cols) || 523 (sp->layout->last->pos == TBL_CELL_DHORIZ && 524 sp->layout->last->col + 1 == sp->opts->cols) ? 2 : 525 sp->pos == TBL_SPAN_HORIZ || 526 (sp->last != NULL && 527 sp->last->pos == TBL_DATA_HORIZ && 528 sp->last->layout->col + 1 == sp->opts->cols) || 529 (sp->layout->last->pos == TBL_CELL_HORIZ && 530 sp->layout->last->col + 1 == sp->opts->cols) ? 1 : 0; 531 fc = BUP * uvert + BDOWN * dvert + BLEFT * lhori; 532 if (uvert > 0 || dvert > 0 || (horiz && sp->opts->rvert)) { 533 if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 || 534 sp->layout->last->col + 1 < sp->opts->cols)) { 535 tp->tcol++; 536 do { 537 tbl_direct_border(tp, 538 BHORIZ * lhori, 1); 539 } while (tp->viscol < tp->tcol->offset); 540 } 541 tbl_direct_border(tp, fc, 1); 542 } 543 (*tp->endline)(tp); 544 tp->viscol = 0; 545 } while (more); 546 547 /* 548 * Clean up after this row. If it is the last line 549 * of the table, print the box line and clean up 550 * column data; otherwise, print the allbox line. 551 */ 552 553 term_setcol(tp, 1); 554 tp->flags &= ~TERMP_MULTICOL; 555 tp->tcol->rmargin = tp->maxrmargin; 556 if (sp->next == NULL) { 557 if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) { 558 tbl_hrule(tp, sp, sp, NULL, TBL_OPT_BOX); 559 tp->skipvsp = 1; 560 } 561 if (tp->enc == TERMENC_ASCII && 562 sp->opts->opts & TBL_OPT_DBOX) { 563 tbl_hrule(tp, sp, sp, NULL, TBL_OPT_DBOX); 564 tp->skipvsp = 2; 565 } 566 assert(tp->tbl.cols); 567 free(tp->tbl.cols); 568 tp->tbl.cols = NULL; 569 } else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX && 570 (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA || 571 sp->next->next != NULL)) 572 tbl_hrule(tp, sp, sp, sp->next, TBL_OPT_ALLBOX); 573 574 tp->tcol->offset = save_offset; 575 tp->flags &= ~TERMP_NONOSPACE; 576 } 577 578 static void 579 tbl_hrule(struct termp *tp, const struct tbl_span *spp, 580 const struct tbl_span *sp, const struct tbl_span *spn, int flags) 581 { 582 const struct tbl_cell *cpp; /* Layout cell above this line. */ 583 const struct tbl_cell *cp; /* Layout cell in 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 cp = sp == NULL ? NULL : sp->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 = sp->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 sp->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 col = tp->tbl.cols; 623 for (;;) { 624 if (cp == NULL) 625 col++; 626 else 627 col = tp->tbl.cols + cp->col; 628 629 /* Print the horizontal line inside this column. */ 630 631 lw = cpp == NULL || cpn == NULL || 632 (cpn->pos != TBL_CELL_DOWN && 633 (dpn == NULL || dpn->string == NULL || 634 strcmp(dpn->string, "\\^") != 0)) 635 ? hw : 0; 636 tbl_direct_border(tp, BHORIZ * lw, 637 col->width + col->spacing / 2); 638 639 /* 640 * Figure out whether a vertical line is crossing 641 * at the end of this column, 642 * and advance to the next column. 643 */ 644 645 uw = dw = 0; 646 if (cpp != NULL) { 647 if (flags != TBL_OPT_DBOX) { 648 uw = cpp->vert; 649 if (uw == 0 && opts & TBL_OPT_ALLBOX) 650 uw = 1; 651 } 652 cpp = cpp->next; 653 } else if (spp != NULL && opts & TBL_OPT_ALLBOX) 654 uw = 1; 655 if (cp != NULL) 656 cp = cp->next; 657 if (cpn != NULL) { 658 if (flags != TBL_OPT_DBOX) { 659 dw = cpn->vert; 660 if (dw == 0 && opts & TBL_OPT_ALLBOX) 661 dw = 1; 662 } 663 cpn = cpn->next; 664 while (dpn != NULL && dpn->layout != cpn) 665 dpn = dpn->next; 666 } else if (spn != NULL && opts & TBL_OPT_ALLBOX) 667 dw = 1; 668 if (col + 1 == tp->tbl.cols + sp->opts->cols) 669 break; 670 671 /* Vertical lines do not cross spanned cells. */ 672 673 if (cpp != NULL && cpp->pos == TBL_CELL_SPAN) 674 uw = 0; 675 if (cpn != NULL && cpn->pos == TBL_CELL_SPAN) 676 dw = 0; 677 678 /* The horizontal line inside the next column. */ 679 680 rw = cpp == NULL || cpn == NULL || 681 (cpn->pos != TBL_CELL_DOWN && 682 (dpn == NULL || dpn->string == NULL || 683 strcmp(dpn->string, "\\^") != 0)) 684 ? hw : 0; 685 686 /* The line crossing at the end of this column. */ 687 688 if (col->spacing) 689 tbl_direct_border(tp, BLEFT * lw + 690 BRIGHT * rw + BUP * uw + BDOWN * dw, 1); 691 692 /* 693 * In ASCII output, a crossing may print two characters. 694 */ 695 696 if (tp->enc != TERMENC_ASCII || (uw < 2 && dw < 2)) 697 uw = dw = 0; 698 if (col->spacing > 2) 699 tbl_direct_border(tp, 700 BHORIZ * rw + BUP * uw + BDOWN * dw, 1); 701 702 /* Padding before the start of the next column. */ 703 704 if (col->spacing > 4) 705 tbl_direct_border(tp, 706 BHORIZ * rw, (col->spacing - 3) / 2); 707 } 708 709 /* Print the right end of the line. */ 710 711 if (flags != 0) { 712 tbl_direct_border(tp, 713 (spp == NULL ? 0 : BUP * bw) + 714 (spn == NULL ? 0 : BDOWN * bw) + 715 (spp == NULL || spn == NULL || 716 spn->layout->last->pos != TBL_CELL_DOWN ? 717 BLEFT * hw : 0), 1); 718 (*tp->endline)(tp); 719 tp->viscol = 0; 720 } 721 } 722 723 static void 724 tbl_data(struct termp *tp, const struct tbl_opts *opts, 725 const struct tbl_cell *cp, const struct tbl_dat *dp, 726 const struct roffcol *col) 727 { 728 switch (cp->pos) { 729 case TBL_CELL_HORIZ: 730 tbl_fill_border(tp, BHORIZ, col->width); 731 return; 732 case TBL_CELL_DHORIZ: 733 tbl_fill_border(tp, BHORIZ * 2, col->width); 734 return; 735 default: 736 break; 737 } 738 739 if (dp == NULL) 740 return; 741 742 switch (dp->pos) { 743 case TBL_DATA_NONE: 744 return; 745 case TBL_DATA_HORIZ: 746 case TBL_DATA_NHORIZ: 747 tbl_fill_border(tp, BHORIZ, col->width); 748 return; 749 case TBL_DATA_NDHORIZ: 750 case TBL_DATA_DHORIZ: 751 tbl_fill_border(tp, BHORIZ * 2, col->width); 752 return; 753 default: 754 break; 755 } 756 757 switch (cp->pos) { 758 case TBL_CELL_LONG: 759 case TBL_CELL_CENTRE: 760 case TBL_CELL_LEFT: 761 case TBL_CELL_RIGHT: 762 tbl_literal(tp, dp, col); 763 break; 764 case TBL_CELL_NUMBER: 765 tbl_number(tp, opts, dp, col); 766 break; 767 case TBL_CELL_DOWN: 768 case TBL_CELL_SPAN: 769 break; 770 default: 771 abort(); 772 } 773 } 774 775 static void 776 tbl_fill_string(struct termp *tp, const char *cp, size_t len) 777 { 778 size_t i, sz; 779 780 sz = term_strlen(tp, cp); 781 for (i = 0; i < len; i += sz) 782 term_word(tp, cp); 783 } 784 785 static void 786 tbl_fill_char(struct termp *tp, char c, size_t len) 787 { 788 char cp[2]; 789 790 cp[0] = c; 791 cp[1] = '\0'; 792 tbl_fill_string(tp, cp, len); 793 } 794 795 static void 796 tbl_fill_border(struct termp *tp, int c, size_t len) 797 { 798 char buf[12]; 799 800 if ((c = borders_locale[c]) > 127) { 801 (void)snprintf(buf, sizeof(buf), "\\[u%04x]", c); 802 tbl_fill_string(tp, buf, len); 803 } else 804 tbl_fill_char(tp, c, len); 805 } 806 807 static void 808 tbl_direct_border(struct termp *tp, int c, size_t len) 809 { 810 size_t i, sz; 811 812 c = borders_locale[c]; 813 sz = (*tp->width)(tp, c); 814 for (i = 0; i < len; i += sz) { 815 (*tp->letter)(tp, c); 816 tp->viscol += sz; 817 } 818 } 819 820 static void 821 tbl_literal(struct termp *tp, const struct tbl_dat *dp, 822 const struct roffcol *col) 823 { 824 size_t len, padl, padr, width; 825 int ic, hspans; 826 827 assert(dp->string); 828 len = term_strlen(tp, dp->string); 829 width = col->width; 830 ic = dp->layout->col; 831 hspans = dp->hspans; 832 while (hspans--) 833 width += tp->tbl.cols[++ic].width + 3; 834 835 padr = width > len ? width - len : 0; 836 padl = 0; 837 838 switch (dp->layout->pos) { 839 case TBL_CELL_LONG: 840 padl = term_len(tp, 1); 841 padr = padr > padl ? padr - padl : 0; 842 break; 843 case TBL_CELL_CENTRE: 844 if (2 > padr) 845 break; 846 padl = padr / 2; 847 padr -= padl; 848 break; 849 case TBL_CELL_RIGHT: 850 padl = padr; 851 padr = 0; 852 break; 853 default: 854 break; 855 } 856 857 tbl_fill_char(tp, ASCII_NBRSP, padl); 858 tbl_word(tp, dp); 859 tbl_fill_char(tp, ASCII_NBRSP, padr); 860 } 861 862 static void 863 tbl_number(struct termp *tp, const struct tbl_opts *opts, 864 const struct tbl_dat *dp, 865 const struct roffcol *col) 866 { 867 const char *cp, *lastdigit, *lastpoint; 868 size_t intsz, padl, totsz; 869 char buf[2]; 870 871 /* 872 * Almost the same code as in tblcalc_number(): 873 * First find the position of the decimal point. 874 */ 875 876 assert(dp->string); 877 lastdigit = lastpoint = NULL; 878 for (cp = dp->string; cp[0] != '\0'; cp++) { 879 if (cp[0] == '\\' && cp[1] == '&') { 880 lastdigit = lastpoint = cp; 881 break; 882 } else if (cp[0] == opts->decimal && 883 (isdigit((unsigned char)cp[1]) || 884 (cp > dp->string && isdigit((unsigned char)cp[-1])))) 885 lastpoint = cp; 886 else if (isdigit((unsigned char)cp[0])) 887 lastdigit = cp; 888 } 889 890 /* Then measure both widths. */ 891 892 padl = 0; 893 totsz = term_strlen(tp, dp->string); 894 if (lastdigit != NULL) { 895 if (lastpoint == NULL) 896 lastpoint = lastdigit + 1; 897 intsz = 0; 898 buf[1] = '\0'; 899 for (cp = dp->string; cp < lastpoint; cp++) { 900 buf[0] = cp[0]; 901 intsz += term_strlen(tp, buf); 902 } 903 904 /* 905 * Pad left to match the decimal position, 906 * but avoid exceeding the total column width. 907 */ 908 909 if (col->decimal > intsz && col->width > totsz) { 910 padl = col->decimal - intsz; 911 if (padl + totsz > col->width) 912 padl = col->width - totsz; 913 } 914 915 /* If it is not a number, simply center the string. */ 916 917 } else if (col->width > totsz) 918 padl = (col->width - totsz) / 2; 919 920 tbl_fill_char(tp, ASCII_NBRSP, padl); 921 tbl_word(tp, dp); 922 923 /* Pad right to fill the column. */ 924 925 if (col->width > padl + totsz) 926 tbl_fill_char(tp, ASCII_NBRSP, col->width - padl - totsz); 927 } 928 929 static void 930 tbl_word(struct termp *tp, const struct tbl_dat *dp) 931 { 932 int prev_font; 933 934 prev_font = tp->fonti; 935 if (dp->layout->flags & TBL_CELL_BOLD) 936 term_fontpush(tp, TERMFONT_BOLD); 937 else if (dp->layout->flags & TBL_CELL_ITALIC) 938 term_fontpush(tp, TERMFONT_UNDER); 939 940 term_word(tp, dp->string); 941 942 term_fontpopq(tp, prev_font); 943 } 944