Annotation of mandoc/tbl_term.c, Revision 1.47
1.47 ! schwarze 1: /* $Id: tbl_term.c,v 1.46 2017/06/08 18:11:22 schwarze Exp $ */
1.1 kristaps 2: /*
1.20 kristaps 3: * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.44 schwarze 4: * Copyright (c) 2011,2012,2014,2015,2017 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 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"
1.28 schwarze 19:
20: #include <sys/types.h>
1.1 kristaps 21:
22: #include <assert.h>
23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26:
27: #include "mandoc.h"
28: #include "out.h"
29: #include "term.h"
30:
1.11 kristaps 31: static size_t term_tbl_len(size_t, void *);
32: static size_t term_tbl_strlen(const char *, void *);
1.46 schwarze 33: static size_t term_tbl_sulen(const struct roffsu *, void *);
1.12 kristaps 34: static void tbl_char(struct termp *, char, size_t);
1.25 schwarze 35: static void tbl_data(struct termp *, const struct tbl_opts *,
1.27 schwarze 36: const struct tbl_dat *,
1.11 kristaps 37: const struct roffcol *);
1.27 schwarze 38: static void tbl_literal(struct termp *, const struct tbl_dat *,
1.11 kristaps 39: const struct roffcol *);
1.27 schwarze 40: static void tbl_number(struct termp *, const struct tbl_opts *,
41: const struct tbl_dat *,
1.11 kristaps 42: const struct roffcol *);
1.33 schwarze 43: static void tbl_hrule(struct termp *, const struct tbl_span *, int);
1.29 schwarze 44: static void tbl_word(struct termp *, const struct tbl_dat *);
1.11 kristaps 45:
46:
47: static size_t
1.46 schwarze 48: term_tbl_sulen(const struct roffsu *su, void *arg)
49: {
50: return term_hspan((const struct termp *)arg, su) / 24;
51: }
52:
53: static size_t
1.11 kristaps 54: term_tbl_strlen(const char *p, void *arg)
55: {
1.42 schwarze 56: return term_strlen((const struct termp *)arg, p);
1.11 kristaps 57: }
58:
59: static size_t
60: term_tbl_len(size_t sz, void *arg)
61: {
1.42 schwarze 62: return term_len((const struct termp *)arg, sz);
1.11 kristaps 63: }
1.1 kristaps 64:
65: void
66: term_tbl(struct termp *tp, const struct tbl_span *sp)
67: {
1.33 schwarze 68: const struct tbl_cell *cp;
1.11 kristaps 69: const struct tbl_dat *dp;
1.34 schwarze 70: static size_t offset;
1.47 ! schwarze 71: size_t coloff, tsz;
! 72: int ic, horiz, spans, vert, more;
! 73: char fc;
1.39 schwarze 74:
1.4 kristaps 75: /* Inhibit printing of spaces: we do padding ourselves. */
76:
1.47 ! schwarze 77: tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE;
1.4 kristaps 78:
79: /*
1.11 kristaps 80: * The first time we're invoked for a given table block,
81: * calculate the table widths and decimal positions.
1.4 kristaps 82: */
83:
1.37 schwarze 84: if (tp->tbl.cols == NULL) {
1.11 kristaps 85: tp->tbl.len = term_tbl_len;
86: tp->tbl.slen = term_tbl_strlen;
1.46 schwarze 87: tp->tbl.sulen = term_tbl_sulen;
1.11 kristaps 88: tp->tbl.arg = tp;
1.4 kristaps 89:
1.45 schwarze 90: tblcalc(&tp->tbl, sp, tp->tcol->rmargin - tp->tcol->offset);
1.1 kristaps 91:
1.34 schwarze 92: /* Center the table as a whole. */
93:
1.45 schwarze 94: offset = tp->tcol->offset;
1.34 schwarze 95: if (sp->opts->opts & TBL_OPT_CENTRE) {
96: tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
97: ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
1.36 schwarze 98: for (ic = 0; ic < sp->opts->cols; ic++)
99: tsz += tp->tbl.cols[ic].width + 3;
1.34 schwarze 100: tsz -= 3;
1.45 schwarze 101: if (offset + tsz > tp->tcol->rmargin)
1.34 schwarze 102: tsz -= 1;
1.45 schwarze 103: tp->tcol->offset = offset + tp->tcol->rmargin > tsz ?
104: (offset + tp->tcol->rmargin - tsz) / 2 : 0;
1.34 schwarze 105: }
106:
1.33 schwarze 107: /* Horizontal frame at the start of boxed tables. */
1.4 kristaps 108:
1.33 schwarze 109: if (sp->opts->opts & TBL_OPT_DBOX)
110: tbl_hrule(tp, sp, 2);
111: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
112: tbl_hrule(tp, sp, 1);
1.21 schwarze 113: }
1.1 kristaps 114:
1.47 ! schwarze 115: /* Set up the columns. */
1.1 kristaps 116:
1.47 ! schwarze 117: tp->flags |= TERMP_MULTICOL;
! 118: horiz = 0;
! 119: switch (sp->pos) {
! 120: case TBL_SPAN_HORIZ:
! 121: case TBL_SPAN_DHORIZ:
! 122: horiz = 1;
! 123: term_setcol(tp, 1);
! 124: break;
! 125: case TBL_SPAN_DATA:
! 126: term_setcol(tp, sp->opts->cols + 2);
! 127: coloff = tp->tcol->offset;
! 128:
! 129: /* Set up a column for a left vertical frame. */
! 130:
! 131: if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
! 132: sp->opts->lvert)
! 133: coloff++;
! 134: tp->tcol->rmargin = coloff;
1.33 schwarze 135:
1.47 ! schwarze 136: /* Set up the data columns. */
1.1 kristaps 137:
1.47 ! schwarze 138: dp = sp->first;
! 139: spans = 0;
! 140: for (ic = 0; ic < sp->opts->cols; ic++) {
! 141: if (spans == 0) {
! 142: tp->tcol++;
! 143: tp->tcol->offset = coloff;
! 144: }
! 145: coloff += tp->tbl.cols[ic].width;
! 146: tp->tcol->rmargin = coloff;
! 147: coloff++;
! 148: if (ic + 1 < sp->opts->cols)
! 149: coloff += 2;
! 150: if (spans) {
! 151: spans--;
! 152: continue;
! 153: }
! 154: if (dp == NULL)
! 155: continue;
! 156: spans = dp->spans;
! 157: dp = dp->next;
! 158: }
! 159:
! 160: /* Set up a column for a right vertical frame. */
! 161:
! 162: tp->tcol++;
! 163: tp->tcol->offset = coloff;
! 164: if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
! 165: sp->opts->rvert)
! 166: coloff++;
! 167: tp->tcol->rmargin = coloff;
! 168:
! 169: /* Spans may have reduced the number of columns. */
! 170:
! 171: tp->lasttcol = tp->tcol - tp->tcols;
! 172:
! 173: /* Fill the buffers for all data columns. */
1.4 kristaps 174:
1.47 ! schwarze 175: tp->tcol = tp->tcols;
1.4 kristaps 176: dp = sp->first;
1.16 kristaps 177: spans = 0;
1.36 schwarze 178: for (ic = 0; ic < sp->opts->cols; ic++) {
1.47 ! schwarze 179: if (spans) {
! 180: spans--;
! 181: continue;
! 182: }
! 183: tp->tcol++;
! 184: tp->col = 0;
! 185: tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
! 186: if (dp == NULL)
! 187: continue;
! 188: spans = dp->spans;
! 189: dp = dp->next;
! 190: }
! 191: break;
! 192: }
! 193:
! 194: do {
! 195: /* Print the vertical frame at the start of each row. */
! 196:
! 197: tp->tcol = tp->tcols;
! 198: fc = '\0';
! 199: if (sp->layout->vert ||
! 200: (sp->prev != NULL && sp->prev->layout->vert) ||
! 201: sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
! 202: fc = horiz ? '+' : '|';
! 203: else if (horiz && sp->opts->lvert)
! 204: fc = '-';
! 205: if (fc != '\0') {
! 206: (*tp->advance)(tp, tp->tcols->offset);
! 207: (*tp->letter)(tp, fc);
! 208: tp->viscol = tp->tcol->offset + 1;
! 209: }
1.22 schwarze 210:
1.47 ! schwarze 211: /* Print the data cells. */
1.21 schwarze 212:
1.47 ! schwarze 213: more = 0;
! 214: if (horiz) {
! 215: tbl_hrule(tp, sp, 0);
! 216: term_flushln(tp);
! 217: } else {
! 218: cp = sp->layout->first;
! 219: dp = sp->first;
! 220: spans = 0;
! 221: for (ic = 0; ic < sp->opts->cols; ic++) {
! 222: if (spans == 0) {
! 223: tp->tcol++;
! 224: if (dp != NULL) {
! 225: spans = dp->spans;
! 226: dp = dp->next;
! 227: }
! 228: if (tp->tcol->col < tp->tcol->lastcol)
! 229: term_flushln(tp);
! 230: if (tp->tcol->col < tp->tcol->lastcol)
! 231: more = 1;
! 232: if (tp->tcol + 1 ==
! 233: tp->tcols + tp->lasttcol)
! 234: continue;
! 235: } else
! 236: spans--;
! 237:
! 238: /* Vertical frames between data cells. */
! 239:
! 240: if (cp != NULL) {
! 241: vert = cp->vert;
! 242: cp = cp->next;
! 243: } else
! 244: vert = 0;
! 245: if (vert == 0)
! 246: continue;
! 247:
! 248: if (tp->tcol->rmargin + 1 > tp->viscol) {
! 249: (*tp->advance)(tp, tp->tcol->rmargin
! 250: + 1 - tp->viscol);
! 251: tp->viscol = tp->tcol->rmargin + 1;
! 252: }
! 253: while (vert--) {
! 254: (*tp->letter)(tp, '|');
! 255: tp->viscol++;
1.33 schwarze 256: }
1.47 ! schwarze 257: }
! 258: }
1.1 kristaps 259:
1.47 ! schwarze 260: /* Print the vertical frame at the end of each row. */
1.16 kristaps 261:
1.47 ! schwarze 262: fc = '\0';
! 263: if (sp->layout->last->vert ||
! 264: (sp->prev != NULL && sp->prev->layout->last->vert) ||
! 265: (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
! 266: fc = horiz ? '+' : '|';
! 267: else if (horiz && sp->opts->rvert)
! 268: fc = '-';
! 269: if (fc != '\0') {
! 270: if (horiz == 0) {
! 271: tp->tcol++;
! 272: (*tp->advance)(tp,
! 273: tp->tcol->offset > tp->viscol ?
! 274: tp->tcol->offset - tp->viscol : 1);
! 275: }
! 276: (*tp->letter)(tp, fc);
! 277: }
! 278: (*tp->endline)(tp);
! 279: tp->viscol = 0;
! 280: } while (more);
1.1 kristaps 281:
1.4 kristaps 282: /*
283: * If we're the last row, clean up after ourselves: clear the
284: * existing table configuration and set it to NULL.
285: */
286:
1.47 ! schwarze 287: term_setcol(tp, 1);
! 288: tp->flags &= ~TERMP_MULTICOL;
! 289: tp->tcol->rmargin = tp->maxrmargin;
1.37 schwarze 290: if (sp->next == NULL) {
1.33 schwarze 291: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
292: tbl_hrule(tp, sp, 1);
1.24 schwarze 293: tp->skipvsp = 1;
294: }
1.33 schwarze 295: if (sp->opts->opts & TBL_OPT_DBOX) {
296: tbl_hrule(tp, sp, 2);
1.24 schwarze 297: tp->skipvsp = 2;
298: }
1.11 kristaps 299: assert(tp->tbl.cols);
300: free(tp->tbl.cols);
301: tp->tbl.cols = NULL;
1.45 schwarze 302: tp->tcol->offset = offset;
1.2 kristaps 303: }
1.47 ! schwarze 304: tp->flags &= ~TERMP_NONOSPACE;
1.1 kristaps 305: }
306:
1.21 schwarze 307: /*
1.33 schwarze 308: * Kinds of horizontal rulers:
309: * 0: inside the table (single or double line with crossings)
310: * 1: inner frame (single line with crossings and ends)
311: * 2: outer frame (single line without crossings with ends)
1.21 schwarze 312: */
1.1 kristaps 313: static void
1.33 schwarze 314: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 kristaps 315: {
1.33 schwarze 316: const struct tbl_cell *c1, *c2;
317: int vert;
318: char line, cross;
319:
320: line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
321: cross = (kind < 2) ? '+' : '-';
322:
323: if (kind)
324: term_word(tp, "+");
325: c1 = sp->layout->first;
326: c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
327: if (c2 == c1)
328: c2 = NULL;
329: for (;;) {
1.36 schwarze 330: tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
1.33 schwarze 331: vert = c1->vert;
332: if ((c1 = c1->next) == NULL)
333: break;
334: if (c2 != NULL) {
335: if (vert < c2->vert)
336: vert = c2->vert;
337: c2 = c2->next;
338: }
339: if (vert)
340: tbl_char(tp, cross, vert);
341: if (vert < 2)
342: tbl_char(tp, line, 2 - vert);
1.22 schwarze 343: }
1.33 schwarze 344: if (kind) {
345: term_word(tp, "+");
346: term_flushln(tp);
1.22 schwarze 347: }
1.1 kristaps 348: }
349:
350: static void
1.25 schwarze 351: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.27 schwarze 352: const struct tbl_dat *dp,
353: const struct roffcol *col)
1.1 kristaps 354: {
355:
1.35 schwarze 356: if (dp == NULL) {
1.11 kristaps 357: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 358: return;
359: }
360:
361: switch (dp->pos) {
1.27 schwarze 362: case TBL_DATA_NONE:
1.11 kristaps 363: tbl_char(tp, ASCII_NBRSP, col->width);
1.10 kristaps 364: return;
1.27 schwarze 365: case TBL_DATA_HORIZ:
366: case TBL_DATA_NHORIZ:
1.11 kristaps 367: tbl_char(tp, '-', col->width);
1.7 kristaps 368: return;
1.27 schwarze 369: case TBL_DATA_NDHORIZ:
370: case TBL_DATA_DHORIZ:
1.11 kristaps 371: tbl_char(tp, '=', col->width);
1.1 kristaps 372: return;
373: default:
374: break;
375: }
1.27 schwarze 376:
1.16 kristaps 377: switch (dp->layout->pos) {
1.27 schwarze 378: case TBL_CELL_HORIZ:
1.11 kristaps 379: tbl_char(tp, '-', col->width);
1.7 kristaps 380: break;
1.27 schwarze 381: case TBL_CELL_DHORIZ:
1.11 kristaps 382: tbl_char(tp, '=', col->width);
1.1 kristaps 383: break;
1.27 schwarze 384: case TBL_CELL_LONG:
385: case TBL_CELL_CENTRE:
386: case TBL_CELL_LEFT:
387: case TBL_CELL_RIGHT:
1.11 kristaps 388: tbl_literal(tp, dp, col);
1.1 kristaps 389: break;
1.27 schwarze 390: case TBL_CELL_NUMBER:
1.25 schwarze 391: tbl_number(tp, opts, dp, col);
1.18 kristaps 392: break;
1.27 schwarze 393: case TBL_CELL_DOWN:
1.18 kristaps 394: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 395: break;
396: default:
397: abort();
398: }
399: }
400:
401: static void
1.12 kristaps 402: tbl_char(struct termp *tp, char c, size_t len)
1.1 kristaps 403: {
1.12 kristaps 404: size_t i, sz;
405: char cp[2];
406:
407: cp[0] = c;
408: cp[1] = '\0';
1.1 kristaps 409:
1.3 kristaps 410: sz = term_strlen(tp, cp);
411:
412: for (i = 0; i < len; i += sz)
1.1 kristaps 413: term_word(tp, cp);
414: }
415:
416: static void
1.27 schwarze 417: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.11 kristaps 418: const struct roffcol *col)
1.1 kristaps 419: {
1.36 schwarze 420: size_t len, padl, padr, width;
421: int ic, spans;
1.1 kristaps 422:
1.17 kristaps 423: assert(dp->string);
1.21 schwarze 424: len = term_strlen(tp, dp->string);
1.23 schwarze 425: width = col->width;
1.36 schwarze 426: ic = dp->layout->col;
427: spans = dp->spans;
428: while (spans--)
429: width += tp->tbl.cols[++ic].width + 3;
1.23 schwarze 430:
431: padr = width > len ? width - len : 0;
1.21 schwarze 432: padl = 0;
1.1 kristaps 433:
1.16 kristaps 434: switch (dp->layout->pos) {
1.27 schwarze 435: case TBL_CELL_LONG:
1.21 schwarze 436: padl = term_len(tp, 1);
437: padr = padr > padl ? padr - padl : 0;
1.1 kristaps 438: break;
1.27 schwarze 439: case TBL_CELL_CENTRE:
1.21 schwarze 440: if (2 > padr)
1.19 schwarze 441: break;
1.21 schwarze 442: padl = padr / 2;
1.19 schwarze 443: padr -= padl;
1.1 kristaps 444: break;
1.27 schwarze 445: case TBL_CELL_RIGHT:
1.21 schwarze 446: padl = padr;
447: padr = 0;
1.1 kristaps 448: break;
449: default:
450: break;
451: }
452:
453: tbl_char(tp, ASCII_NBRSP, padl);
1.29 schwarze 454: tbl_word(tp, dp);
1.21 schwarze 455: tbl_char(tp, ASCII_NBRSP, padr);
1.1 kristaps 456: }
457:
458: static void
1.25 schwarze 459: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.2 kristaps 460: const struct tbl_dat *dp,
1.11 kristaps 461: const struct roffcol *col)
1.1 kristaps 462: {
1.11 kristaps 463: char *cp;
464: char buf[2];
465: size_t sz, psz, ssz, d, padl;
466: int i;
1.1 kristaps 467:
468: /*
469: * See calc_data_number(). Left-pad by taking the offset of our
470: * and the maximum decimal; right-pad by the remaining amount.
471: */
472:
1.17 kristaps 473: assert(dp->string);
1.2 kristaps 474:
1.17 kristaps 475: sz = term_strlen(tp, dp->string);
1.2 kristaps 476:
1.25 schwarze 477: buf[0] = opts->decimal;
1.11 kristaps 478: buf[1] = '\0';
1.2 kristaps 479:
1.11 kristaps 480: psz = term_strlen(tp, buf);
1.10 kristaps 481:
1.35 schwarze 482: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.17 kristaps 483: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
484: buf[0] = dp->string[i];
1.5 kristaps 485: ssz += term_strlen(tp, buf);
486: }
487: d = ssz + psz;
488: } else
489: d = sz + psz;
1.2 kristaps 490:
1.32 schwarze 491: if (col->decimal > d && col->width > sz) {
492: padl = col->decimal - d;
493: if (padl + sz > col->width)
494: padl = col->width - sz;
495: tbl_char(tp, ASCII_NBRSP, padl);
496: } else
497: padl = 0;
1.29 schwarze 498: tbl_word(tp, dp);
1.21 schwarze 499: if (col->width > sz + padl)
500: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.2 kristaps 501: }
502:
1.29 schwarze 503: static void
504: tbl_word(struct termp *tp, const struct tbl_dat *dp)
505: {
1.38 schwarze 506: int prev_font;
1.29 schwarze 507:
1.38 schwarze 508: prev_font = tp->fonti;
1.29 schwarze 509: if (dp->layout->flags & TBL_CELL_BOLD)
510: term_fontpush(tp, TERMFONT_BOLD);
511: else if (dp->layout->flags & TBL_CELL_ITALIC)
512: term_fontpush(tp, TERMFONT_UNDER);
513:
514: term_word(tp, dp->string);
515:
516: term_fontpopq(tp, prev_font);
517: }
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