Annotation of mandoc/tbl_term.c, Revision 1.39
1.39 ! schwarze 1: /* $Id: tbl_term.c,v 1.38 2015/01/31 00:12:41 schwarze Exp $ */
1.1 kristaps 2: /*
1.20 kristaps 3: * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.33 schwarze 4: * Copyright (c) 2011, 2012, 2014, 2015 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:
50: return(term_strlen((const struct termp *)arg, p));
51: }
52:
53: static size_t
54: term_tbl_len(size_t sz, void *arg)
55: {
56:
57: return(term_len((const struct termp *)arg, sz));
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;
66: size_t rmargin, maxrmargin, tsz;
1.36 schwarze 67: int ic, horiz, spans, vert;
1.11 kristaps 68:
1.39 ! schwarze 69: if (tp->tbl.cols == NULL)
! 70: term_flushln(tp);
! 71:
1.11 kristaps 72: rmargin = tp->rmargin;
73: maxrmargin = tp->maxrmargin;
74:
75: tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
1.1 kristaps 76:
1.4 kristaps 77: /* Inhibit printing of spaces: we do padding ourselves. */
78:
79: tp->flags |= TERMP_NONOSPACE;
80: tp->flags |= TERMP_NOSPACE;
81:
82: /*
1.11 kristaps 83: * The first time we're invoked for a given table block,
84: * calculate the table widths and decimal positions.
1.4 kristaps 85: */
86:
1.37 schwarze 87: if (tp->tbl.cols == NULL) {
1.11 kristaps 88: tp->tbl.len = term_tbl_len;
89: tp->tbl.slen = term_tbl_strlen;
90: tp->tbl.arg = tp;
1.4 kristaps 91:
1.30 schwarze 92: tblcalc(&tp->tbl, sp, rmargin - tp->offset);
1.1 kristaps 93:
1.34 schwarze 94: /* Center the table as a whole. */
95:
96: offset = tp->offset;
97: if (sp->opts->opts & TBL_OPT_CENTRE) {
98: tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
99: ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
1.36 schwarze 100: for (ic = 0; ic < sp->opts->cols; ic++)
101: tsz += tp->tbl.cols[ic].width + 3;
1.34 schwarze 102: tsz -= 3;
103: if (offset + tsz > rmargin)
104: tsz -= 1;
105: tp->offset = (offset + rmargin > tsz) ?
106: (offset + rmargin - tsz) / 2 : 0;
107: }
108:
1.33 schwarze 109: /* Horizontal frame at the start of boxed tables. */
1.4 kristaps 110:
1.33 schwarze 111: if (sp->opts->opts & TBL_OPT_DBOX)
112: tbl_hrule(tp, sp, 2);
113: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
114: tbl_hrule(tp, sp, 1);
1.21 schwarze 115: }
1.1 kristaps 116:
1.4 kristaps 117: /* Vertical frame at the start of each row. */
1.1 kristaps 118:
1.33 schwarze 119: horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
120:
121: if (sp->layout->vert ||
122: (sp->prev != NULL && sp->prev->layout->vert) ||
123: sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
124: term_word(tp, horiz ? "+" : "|");
125: else if (sp->opts->lvert)
126: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 kristaps 127:
1.4 kristaps 128: /*
129: * Now print the actual data itself depending on the span type.
1.36 schwarze 130: * Match data cells to column numbers.
1.4 kristaps 131: */
132:
1.33 schwarze 133: if (sp->pos == TBL_SPAN_DATA) {
134: cp = sp->layout->first;
1.4 kristaps 135: dp = sp->first;
1.16 kristaps 136: spans = 0;
1.36 schwarze 137: for (ic = 0; ic < sp->opts->cols; ic++) {
1.22 schwarze 138:
1.27 schwarze 139: /*
1.33 schwarze 140: * Remeber whether we need a vertical bar
141: * after this cell.
1.16 kristaps 142: */
1.11 kristaps 143:
1.33 schwarze 144: vert = cp == NULL ? 0 : cp->vert;
1.21 schwarze 145:
1.33 schwarze 146: /*
147: * Print the data and advance to the next cell.
148: */
1.21 schwarze 149:
1.33 schwarze 150: if (spans == 0) {
1.36 schwarze 151: tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
1.33 schwarze 152: if (dp != NULL) {
153: spans = dp->spans;
154: dp = dp->next;
155: }
156: } else
157: spans--;
158: if (cp != NULL)
159: cp = cp->next;
1.1 kristaps 160:
1.27 schwarze 161: /*
1.33 schwarze 162: * Separate columns, except in the middle
163: * of spans and after the last cell.
1.16 kristaps 164: */
165:
1.36 schwarze 166: if (ic + 1 == sp->opts->cols || spans)
1.33 schwarze 167: continue;
168:
169: tbl_char(tp, ASCII_NBRSP, 1);
170: if (vert > 0)
171: tbl_char(tp, '|', vert);
1.36 schwarze 172: if (vert < 2)
1.33 schwarze 173: tbl_char(tp, ASCII_NBRSP, 2 - vert);
1.1 kristaps 174: }
1.33 schwarze 175: } else if (horiz)
176: tbl_hrule(tp, sp, 0);
1.1 kristaps 177:
1.21 schwarze 178: /* Vertical frame at the end of each row. */
179:
1.33 schwarze 180: if (sp->layout->last->vert ||
181: (sp->prev != NULL && sp->prev->layout->last->vert) ||
182: (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
183: term_word(tp, horiz ? "+" : " |");
184: else if (sp->opts->rvert)
185: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 kristaps 186: term_flushln(tp);
187:
1.4 kristaps 188: /*
189: * If we're the last row, clean up after ourselves: clear the
190: * existing table configuration and set it to NULL.
191: */
192:
1.37 schwarze 193: if (sp->next == NULL) {
1.33 schwarze 194: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
195: tbl_hrule(tp, sp, 1);
1.24 schwarze 196: tp->skipvsp = 1;
197: }
1.33 schwarze 198: if (sp->opts->opts & TBL_OPT_DBOX) {
199: tbl_hrule(tp, sp, 2);
1.24 schwarze 200: tp->skipvsp = 2;
201: }
1.11 kristaps 202: assert(tp->tbl.cols);
203: free(tp->tbl.cols);
204: tp->tbl.cols = NULL;
1.34 schwarze 205: tp->offset = offset;
1.2 kristaps 206: }
1.1 kristaps 207:
208: tp->flags &= ~TERMP_NONOSPACE;
1.11 kristaps 209: tp->rmargin = rmargin;
210: tp->maxrmargin = maxrmargin;
1.1 kristaps 211: }
212:
1.21 schwarze 213: /*
1.33 schwarze 214: * Kinds of horizontal rulers:
215: * 0: inside the table (single or double line with crossings)
216: * 1: inner frame (single line with crossings and ends)
217: * 2: outer frame (single line without crossings with ends)
1.21 schwarze 218: */
1.1 kristaps 219: static void
1.33 schwarze 220: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 kristaps 221: {
1.33 schwarze 222: const struct tbl_cell *c1, *c2;
223: int vert;
224: char line, cross;
225:
226: line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
227: cross = (kind < 2) ? '+' : '-';
228:
229: if (kind)
230: term_word(tp, "+");
231: c1 = sp->layout->first;
232: c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
233: if (c2 == c1)
234: c2 = NULL;
235: for (;;) {
1.36 schwarze 236: tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
1.33 schwarze 237: vert = c1->vert;
238: if ((c1 = c1->next) == NULL)
239: break;
240: if (c2 != NULL) {
241: if (vert < c2->vert)
242: vert = c2->vert;
243: c2 = c2->next;
244: }
245: if (vert)
246: tbl_char(tp, cross, vert);
247: if (vert < 2)
248: tbl_char(tp, line, 2 - vert);
1.22 schwarze 249: }
1.33 schwarze 250: if (kind) {
251: term_word(tp, "+");
252: term_flushln(tp);
1.22 schwarze 253: }
1.1 kristaps 254: }
255:
256: static void
1.25 schwarze 257: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.27 schwarze 258: const struct tbl_dat *dp,
259: const struct roffcol *col)
1.1 kristaps 260: {
261:
1.35 schwarze 262: if (dp == NULL) {
1.11 kristaps 263: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 264: return;
265: }
266:
267: switch (dp->pos) {
1.27 schwarze 268: case TBL_DATA_NONE:
1.11 kristaps 269: tbl_char(tp, ASCII_NBRSP, col->width);
1.10 kristaps 270: return;
1.27 schwarze 271: case TBL_DATA_HORIZ:
1.1 kristaps 272: /* FALLTHROUGH */
1.27 schwarze 273: case TBL_DATA_NHORIZ:
1.11 kristaps 274: tbl_char(tp, '-', col->width);
1.7 kristaps 275: return;
1.27 schwarze 276: case TBL_DATA_NDHORIZ:
1.7 kristaps 277: /* FALLTHROUGH */
1.27 schwarze 278: case TBL_DATA_DHORIZ:
1.11 kristaps 279: tbl_char(tp, '=', col->width);
1.1 kristaps 280: return;
281: default:
282: break;
283: }
1.27 schwarze 284:
1.16 kristaps 285: switch (dp->layout->pos) {
1.27 schwarze 286: case TBL_CELL_HORIZ:
1.11 kristaps 287: tbl_char(tp, '-', col->width);
1.7 kristaps 288: break;
1.27 schwarze 289: case TBL_CELL_DHORIZ:
1.11 kristaps 290: tbl_char(tp, '=', col->width);
1.1 kristaps 291: break;
1.27 schwarze 292: case TBL_CELL_LONG:
1.1 kristaps 293: /* FALLTHROUGH */
1.27 schwarze 294: case TBL_CELL_CENTRE:
1.1 kristaps 295: /* FALLTHROUGH */
1.27 schwarze 296: case TBL_CELL_LEFT:
1.1 kristaps 297: /* FALLTHROUGH */
1.27 schwarze 298: case TBL_CELL_RIGHT:
1.11 kristaps 299: tbl_literal(tp, dp, col);
1.1 kristaps 300: break;
1.27 schwarze 301: case TBL_CELL_NUMBER:
1.25 schwarze 302: tbl_number(tp, opts, dp, col);
1.18 kristaps 303: break;
1.27 schwarze 304: case TBL_CELL_DOWN:
1.18 kristaps 305: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 306: break;
307: default:
308: abort();
309: /* NOTREACHED */
310: }
311: }
312:
313: static void
1.12 kristaps 314: tbl_char(struct termp *tp, char c, size_t len)
1.1 kristaps 315: {
1.12 kristaps 316: size_t i, sz;
317: char cp[2];
318:
319: cp[0] = c;
320: cp[1] = '\0';
1.1 kristaps 321:
1.3 kristaps 322: sz = term_strlen(tp, cp);
323:
324: for (i = 0; i < len; i += sz)
1.1 kristaps 325: term_word(tp, cp);
326: }
327:
328: static void
1.27 schwarze 329: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.11 kristaps 330: const struct roffcol *col)
1.1 kristaps 331: {
1.36 schwarze 332: size_t len, padl, padr, width;
333: int ic, spans;
1.1 kristaps 334:
1.17 kristaps 335: assert(dp->string);
1.21 schwarze 336: len = term_strlen(tp, dp->string);
1.23 schwarze 337: width = col->width;
1.36 schwarze 338: ic = dp->layout->col;
339: spans = dp->spans;
340: while (spans--)
341: width += tp->tbl.cols[++ic].width + 3;
1.23 schwarze 342:
343: padr = width > len ? width - len : 0;
1.21 schwarze 344: padl = 0;
1.1 kristaps 345:
1.16 kristaps 346: switch (dp->layout->pos) {
1.27 schwarze 347: case TBL_CELL_LONG:
1.21 schwarze 348: padl = term_len(tp, 1);
349: padr = padr > padl ? padr - padl : 0;
1.1 kristaps 350: break;
1.27 schwarze 351: case TBL_CELL_CENTRE:
1.21 schwarze 352: if (2 > padr)
1.19 schwarze 353: break;
1.21 schwarze 354: padl = padr / 2;
1.19 schwarze 355: padr -= padl;
1.1 kristaps 356: break;
1.27 schwarze 357: case TBL_CELL_RIGHT:
1.21 schwarze 358: padl = padr;
359: padr = 0;
1.1 kristaps 360: break;
361: default:
362: break;
363: }
364:
365: tbl_char(tp, ASCII_NBRSP, padl);
1.29 schwarze 366: tbl_word(tp, dp);
1.21 schwarze 367: tbl_char(tp, ASCII_NBRSP, padr);
1.1 kristaps 368: }
369:
370: static void
1.25 schwarze 371: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.2 kristaps 372: const struct tbl_dat *dp,
1.11 kristaps 373: const struct roffcol *col)
1.1 kristaps 374: {
1.11 kristaps 375: char *cp;
376: char buf[2];
377: size_t sz, psz, ssz, d, padl;
378: int i;
1.1 kristaps 379:
380: /*
381: * See calc_data_number(). Left-pad by taking the offset of our
382: * and the maximum decimal; right-pad by the remaining amount.
383: */
384:
1.17 kristaps 385: assert(dp->string);
1.2 kristaps 386:
1.17 kristaps 387: sz = term_strlen(tp, dp->string);
1.2 kristaps 388:
1.25 schwarze 389: buf[0] = opts->decimal;
1.11 kristaps 390: buf[1] = '\0';
1.2 kristaps 391:
1.11 kristaps 392: psz = term_strlen(tp, buf);
1.10 kristaps 393:
1.35 schwarze 394: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.17 kristaps 395: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
396: buf[0] = dp->string[i];
1.5 kristaps 397: ssz += term_strlen(tp, buf);
398: }
399: d = ssz + psz;
400: } else
401: d = sz + psz;
1.2 kristaps 402:
1.32 schwarze 403: if (col->decimal > d && col->width > sz) {
404: padl = col->decimal - d;
405: if (padl + sz > col->width)
406: padl = col->width - sz;
407: tbl_char(tp, ASCII_NBRSP, padl);
408: } else
409: padl = 0;
1.29 schwarze 410: tbl_word(tp, dp);
1.21 schwarze 411: if (col->width > sz + padl)
412: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.2 kristaps 413: }
414:
1.29 schwarze 415: static void
416: tbl_word(struct termp *tp, const struct tbl_dat *dp)
417: {
1.38 schwarze 418: int prev_font;
1.29 schwarze 419:
1.38 schwarze 420: prev_font = tp->fonti;
1.29 schwarze 421: if (dp->layout->flags & TBL_CELL_BOLD)
422: term_fontpush(tp, TERMFONT_BOLD);
423: else if (dp->layout->flags & TBL_CELL_ITALIC)
424: term_fontpush(tp, TERMFONT_UNDER);
425:
426: term_word(tp, dp->string);
427:
428: term_fontpopq(tp, prev_font);
429: }
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