Annotation of mandoc/tbl_term.c, Revision 1.45
1.45 ! schwarze 1: /* $Id: tbl_term.c,v 1.44 2017/06/04 22:44:15 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 *);
1.12 kristaps 33: static void tbl_char(struct termp *, char, size_t);
1.25 schwarze 34: static void tbl_data(struct termp *, const struct tbl_opts *,
1.27 schwarze 35: const struct tbl_dat *,
1.11 kristaps 36: const struct roffcol *);
1.27 schwarze 37: static void tbl_literal(struct termp *, const struct tbl_dat *,
1.11 kristaps 38: const struct roffcol *);
1.27 schwarze 39: static void tbl_number(struct termp *, const struct tbl_opts *,
40: const struct tbl_dat *,
1.11 kristaps 41: const struct roffcol *);
1.33 schwarze 42: static void tbl_hrule(struct termp *, const struct tbl_span *, int);
1.29 schwarze 43: static void tbl_word(struct termp *, const struct tbl_dat *);
1.11 kristaps 44:
45:
46: static size_t
47: term_tbl_strlen(const char *p, void *arg)
48: {
49:
1.42 schwarze 50: return term_strlen((const struct termp *)arg, p);
1.11 kristaps 51: }
52:
53: static size_t
54: term_tbl_len(size_t sz, void *arg)
55: {
56:
1.42 schwarze 57: return term_len((const struct termp *)arg, sz);
1.11 kristaps 58: }
1.1 kristaps 59:
60: void
61: term_tbl(struct termp *tp, const struct tbl_span *sp)
62: {
1.33 schwarze 63: const struct tbl_cell *cp;
1.11 kristaps 64: const struct tbl_dat *dp;
1.34 schwarze 65: static size_t offset;
1.44 schwarze 66: size_t tsz;
1.36 schwarze 67: int ic, horiz, spans, vert;
1.39 schwarze 68:
1.4 kristaps 69: /* Inhibit printing of spaces: we do padding ourselves. */
70:
1.44 schwarze 71: tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE | TERMP_BRNEVER;
1.4 kristaps 72:
73: /*
1.11 kristaps 74: * The first time we're invoked for a given table block,
75: * calculate the table widths and decimal positions.
1.4 kristaps 76: */
77:
1.37 schwarze 78: if (tp->tbl.cols == NULL) {
1.11 kristaps 79: tp->tbl.len = term_tbl_len;
80: tp->tbl.slen = term_tbl_strlen;
81: tp->tbl.arg = tp;
1.4 kristaps 82:
1.45 ! schwarze 83: tblcalc(&tp->tbl, sp, tp->tcol->rmargin - tp->tcol->offset);
1.1 kristaps 84:
1.34 schwarze 85: /* Center the table as a whole. */
86:
1.45 ! schwarze 87: offset = tp->tcol->offset;
1.34 schwarze 88: if (sp->opts->opts & TBL_OPT_CENTRE) {
89: tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
90: ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
1.36 schwarze 91: for (ic = 0; ic < sp->opts->cols; ic++)
92: tsz += tp->tbl.cols[ic].width + 3;
1.34 schwarze 93: tsz -= 3;
1.45 ! schwarze 94: if (offset + tsz > tp->tcol->rmargin)
1.34 schwarze 95: tsz -= 1;
1.45 ! schwarze 96: tp->tcol->offset = offset + tp->tcol->rmargin > tsz ?
! 97: (offset + tp->tcol->rmargin - tsz) / 2 : 0;
1.34 schwarze 98: }
99:
1.33 schwarze 100: /* Horizontal frame at the start of boxed tables. */
1.4 kristaps 101:
1.33 schwarze 102: if (sp->opts->opts & TBL_OPT_DBOX)
103: tbl_hrule(tp, sp, 2);
104: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
105: tbl_hrule(tp, sp, 1);
1.21 schwarze 106: }
1.1 kristaps 107:
1.4 kristaps 108: /* Vertical frame at the start of each row. */
1.1 kristaps 109:
1.33 schwarze 110: horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
111:
112: if (sp->layout->vert ||
113: (sp->prev != NULL && sp->prev->layout->vert) ||
114: sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
115: term_word(tp, horiz ? "+" : "|");
116: else if (sp->opts->lvert)
117: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 kristaps 118:
1.4 kristaps 119: /*
120: * Now print the actual data itself depending on the span type.
1.36 schwarze 121: * Match data cells to column numbers.
1.4 kristaps 122: */
123:
1.33 schwarze 124: if (sp->pos == TBL_SPAN_DATA) {
125: cp = sp->layout->first;
1.4 kristaps 126: dp = sp->first;
1.16 kristaps 127: spans = 0;
1.36 schwarze 128: for (ic = 0; ic < sp->opts->cols; ic++) {
1.22 schwarze 129:
1.27 schwarze 130: /*
1.33 schwarze 131: * Remeber whether we need a vertical bar
132: * after this cell.
1.16 kristaps 133: */
1.11 kristaps 134:
1.33 schwarze 135: vert = cp == NULL ? 0 : cp->vert;
1.21 schwarze 136:
1.33 schwarze 137: /*
138: * Print the data and advance to the next cell.
139: */
1.21 schwarze 140:
1.33 schwarze 141: if (spans == 0) {
1.36 schwarze 142: tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
1.33 schwarze 143: if (dp != NULL) {
144: spans = dp->spans;
145: dp = dp->next;
146: }
147: } else
148: spans--;
149: if (cp != NULL)
150: cp = cp->next;
1.1 kristaps 151:
1.27 schwarze 152: /*
1.33 schwarze 153: * Separate columns, except in the middle
154: * of spans and after the last cell.
1.16 kristaps 155: */
156:
1.36 schwarze 157: if (ic + 1 == sp->opts->cols || spans)
1.33 schwarze 158: continue;
159:
160: tbl_char(tp, ASCII_NBRSP, 1);
161: if (vert > 0)
162: tbl_char(tp, '|', vert);
1.36 schwarze 163: if (vert < 2)
1.33 schwarze 164: tbl_char(tp, ASCII_NBRSP, 2 - vert);
1.1 kristaps 165: }
1.33 schwarze 166: } else if (horiz)
167: tbl_hrule(tp, sp, 0);
1.1 kristaps 168:
1.21 schwarze 169: /* Vertical frame at the end of each row. */
170:
1.33 schwarze 171: if (sp->layout->last->vert ||
172: (sp->prev != NULL && sp->prev->layout->last->vert) ||
173: (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
174: term_word(tp, horiz ? "+" : " |");
175: else if (sp->opts->rvert)
176: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 kristaps 177: term_flushln(tp);
178:
1.4 kristaps 179: /*
180: * If we're the last row, clean up after ourselves: clear the
181: * existing table configuration and set it to NULL.
182: */
183:
1.37 schwarze 184: if (sp->next == NULL) {
1.33 schwarze 185: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
186: tbl_hrule(tp, sp, 1);
1.24 schwarze 187: tp->skipvsp = 1;
188: }
1.33 schwarze 189: if (sp->opts->opts & TBL_OPT_DBOX) {
190: tbl_hrule(tp, sp, 2);
1.24 schwarze 191: tp->skipvsp = 2;
192: }
1.11 kristaps 193: assert(tp->tbl.cols);
194: free(tp->tbl.cols);
195: tp->tbl.cols = NULL;
1.45 ! schwarze 196: tp->tcol->offset = offset;
1.2 kristaps 197: }
1.44 schwarze 198: tp->flags &= ~(TERMP_NONOSPACE | TERMP_BRNEVER);
1.1 kristaps 199: }
200:
1.21 schwarze 201: /*
1.33 schwarze 202: * Kinds of horizontal rulers:
203: * 0: inside the table (single or double line with crossings)
204: * 1: inner frame (single line with crossings and ends)
205: * 2: outer frame (single line without crossings with ends)
1.21 schwarze 206: */
1.1 kristaps 207: static void
1.33 schwarze 208: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 kristaps 209: {
1.33 schwarze 210: const struct tbl_cell *c1, *c2;
211: int vert;
212: char line, cross;
213:
214: line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
215: cross = (kind < 2) ? '+' : '-';
216:
217: if (kind)
218: term_word(tp, "+");
219: c1 = sp->layout->first;
220: c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
221: if (c2 == c1)
222: c2 = NULL;
223: for (;;) {
1.36 schwarze 224: tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
1.33 schwarze 225: vert = c1->vert;
226: if ((c1 = c1->next) == NULL)
227: break;
228: if (c2 != NULL) {
229: if (vert < c2->vert)
230: vert = c2->vert;
231: c2 = c2->next;
232: }
233: if (vert)
234: tbl_char(tp, cross, vert);
235: if (vert < 2)
236: tbl_char(tp, line, 2 - vert);
1.22 schwarze 237: }
1.33 schwarze 238: if (kind) {
239: term_word(tp, "+");
240: term_flushln(tp);
1.22 schwarze 241: }
1.1 kristaps 242: }
243:
244: static void
1.25 schwarze 245: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.27 schwarze 246: const struct tbl_dat *dp,
247: const struct roffcol *col)
1.1 kristaps 248: {
249:
1.35 schwarze 250: if (dp == NULL) {
1.11 kristaps 251: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 252: return;
253: }
254:
255: switch (dp->pos) {
1.27 schwarze 256: case TBL_DATA_NONE:
1.11 kristaps 257: tbl_char(tp, ASCII_NBRSP, col->width);
1.10 kristaps 258: return;
1.27 schwarze 259: case TBL_DATA_HORIZ:
260: case TBL_DATA_NHORIZ:
1.11 kristaps 261: tbl_char(tp, '-', col->width);
1.7 kristaps 262: return;
1.27 schwarze 263: case TBL_DATA_NDHORIZ:
264: case TBL_DATA_DHORIZ:
1.11 kristaps 265: tbl_char(tp, '=', col->width);
1.1 kristaps 266: return;
267: default:
268: break;
269: }
1.27 schwarze 270:
1.16 kristaps 271: switch (dp->layout->pos) {
1.27 schwarze 272: case TBL_CELL_HORIZ:
1.11 kristaps 273: tbl_char(tp, '-', col->width);
1.7 kristaps 274: break;
1.27 schwarze 275: case TBL_CELL_DHORIZ:
1.11 kristaps 276: tbl_char(tp, '=', col->width);
1.1 kristaps 277: break;
1.27 schwarze 278: case TBL_CELL_LONG:
279: case TBL_CELL_CENTRE:
280: case TBL_CELL_LEFT:
281: case TBL_CELL_RIGHT:
1.11 kristaps 282: tbl_literal(tp, dp, col);
1.1 kristaps 283: break;
1.27 schwarze 284: case TBL_CELL_NUMBER:
1.25 schwarze 285: tbl_number(tp, opts, dp, col);
1.18 kristaps 286: break;
1.27 schwarze 287: case TBL_CELL_DOWN:
1.18 kristaps 288: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 289: break;
290: default:
291: abort();
292: }
293: }
294:
295: static void
1.12 kristaps 296: tbl_char(struct termp *tp, char c, size_t len)
1.1 kristaps 297: {
1.12 kristaps 298: size_t i, sz;
299: char cp[2];
300:
301: cp[0] = c;
302: cp[1] = '\0';
1.1 kristaps 303:
1.3 kristaps 304: sz = term_strlen(tp, cp);
305:
306: for (i = 0; i < len; i += sz)
1.1 kristaps 307: term_word(tp, cp);
308: }
309:
310: static void
1.27 schwarze 311: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.11 kristaps 312: const struct roffcol *col)
1.1 kristaps 313: {
1.36 schwarze 314: size_t len, padl, padr, width;
315: int ic, spans;
1.1 kristaps 316:
1.17 kristaps 317: assert(dp->string);
1.21 schwarze 318: len = term_strlen(tp, dp->string);
1.23 schwarze 319: width = col->width;
1.36 schwarze 320: ic = dp->layout->col;
321: spans = dp->spans;
322: while (spans--)
323: width += tp->tbl.cols[++ic].width + 3;
1.23 schwarze 324:
325: padr = width > len ? width - len : 0;
1.21 schwarze 326: padl = 0;
1.1 kristaps 327:
1.16 kristaps 328: switch (dp->layout->pos) {
1.27 schwarze 329: case TBL_CELL_LONG:
1.21 schwarze 330: padl = term_len(tp, 1);
331: padr = padr > padl ? padr - padl : 0;
1.1 kristaps 332: break;
1.27 schwarze 333: case TBL_CELL_CENTRE:
1.21 schwarze 334: if (2 > padr)
1.19 schwarze 335: break;
1.21 schwarze 336: padl = padr / 2;
1.19 schwarze 337: padr -= padl;
1.1 kristaps 338: break;
1.27 schwarze 339: case TBL_CELL_RIGHT:
1.21 schwarze 340: padl = padr;
341: padr = 0;
1.1 kristaps 342: break;
343: default:
344: break;
345: }
346:
347: tbl_char(tp, ASCII_NBRSP, padl);
1.29 schwarze 348: tbl_word(tp, dp);
1.21 schwarze 349: tbl_char(tp, ASCII_NBRSP, padr);
1.1 kristaps 350: }
351:
352: static void
1.25 schwarze 353: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.2 kristaps 354: const struct tbl_dat *dp,
1.11 kristaps 355: const struct roffcol *col)
1.1 kristaps 356: {
1.11 kristaps 357: char *cp;
358: char buf[2];
359: size_t sz, psz, ssz, d, padl;
360: int i;
1.1 kristaps 361:
362: /*
363: * See calc_data_number(). Left-pad by taking the offset of our
364: * and the maximum decimal; right-pad by the remaining amount.
365: */
366:
1.17 kristaps 367: assert(dp->string);
1.2 kristaps 368:
1.17 kristaps 369: sz = term_strlen(tp, dp->string);
1.2 kristaps 370:
1.25 schwarze 371: buf[0] = opts->decimal;
1.11 kristaps 372: buf[1] = '\0';
1.2 kristaps 373:
1.11 kristaps 374: psz = term_strlen(tp, buf);
1.10 kristaps 375:
1.35 schwarze 376: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.17 kristaps 377: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
378: buf[0] = dp->string[i];
1.5 kristaps 379: ssz += term_strlen(tp, buf);
380: }
381: d = ssz + psz;
382: } else
383: d = sz + psz;
1.2 kristaps 384:
1.32 schwarze 385: if (col->decimal > d && col->width > sz) {
386: padl = col->decimal - d;
387: if (padl + sz > col->width)
388: padl = col->width - sz;
389: tbl_char(tp, ASCII_NBRSP, padl);
390: } else
391: padl = 0;
1.29 schwarze 392: tbl_word(tp, dp);
1.21 schwarze 393: if (col->width > sz + padl)
394: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.2 kristaps 395: }
396:
1.29 schwarze 397: static void
398: tbl_word(struct termp *tp, const struct tbl_dat *dp)
399: {
1.38 schwarze 400: int prev_font;
1.29 schwarze 401:
1.38 schwarze 402: prev_font = tp->fonti;
1.29 schwarze 403: if (dp->layout->flags & TBL_CELL_BOLD)
404: term_fontpush(tp, TERMFONT_BOLD);
405: else if (dp->layout->flags & TBL_CELL_ITALIC)
406: term_fontpush(tp, TERMFONT_UNDER);
407:
408: term_word(tp, dp->string);
409:
410: term_fontpopq(tp, prev_font);
411: }
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