Annotation of src/usr.bin/mandoc/tbl_term.c, Revision 1.23
1.23 ! schwarze 1: /* $OpenBSD: tbl_term.c,v 1.22 2015/01/28 04:18:31 schwarze Exp $ */
1.1 schwarze 2: /*
1.9 schwarze 3: * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.21 schwarze 4: * Copyright (c) 2011, 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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: */
1.17 schwarze 18: #include <sys/types.h>
19:
1.1 schwarze 20: #include <assert.h>
21: #include <stdio.h>
22: #include <stdlib.h>
23: #include <string.h>
24:
1.5 schwarze 25: #include "mandoc.h"
1.2 schwarze 26: #include "out.h"
27: #include "term.h"
1.1 schwarze 28:
1.6 schwarze 29: static size_t term_tbl_len(size_t, void *);
30: static size_t term_tbl_strlen(const char *, void *);
31: static void tbl_char(struct termp *, char, size_t);
1.14 schwarze 32: static void tbl_data(struct termp *, const struct tbl_opts *,
1.16 schwarze 33: const struct tbl_dat *,
1.6 schwarze 34: const struct roffcol *);
1.16 schwarze 35: static void tbl_literal(struct termp *, const struct tbl_dat *,
1.6 schwarze 36: const struct roffcol *);
1.16 schwarze 37: static void tbl_number(struct termp *, const struct tbl_opts *,
38: const struct tbl_dat *,
1.6 schwarze 39: const struct roffcol *);
1.21 schwarze 40: static void tbl_hrule(struct termp *, const struct tbl_span *, int);
1.17 schwarze 41: static void tbl_word(struct termp *, const struct tbl_dat *);
1.1 schwarze 42:
1.6 schwarze 43:
44: static size_t
45: term_tbl_strlen(const char *p, void *arg)
46: {
47:
48: return(term_strlen((const struct termp *)arg, p));
49: }
50:
51: static size_t
52: term_tbl_len(size_t sz, void *arg)
53: {
54:
55: return(term_len((const struct termp *)arg, sz));
56: }
1.5 schwarze 57:
58: void
59: term_tbl(struct termp *tp, const struct tbl_span *sp)
60: {
1.6 schwarze 61: const struct tbl_head *hp;
1.21 schwarze 62: const struct tbl_cell *cp;
1.6 schwarze 63: const struct tbl_dat *dp;
1.22 schwarze 64: static size_t offset;
65: size_t rmargin, maxrmargin, tsz;
1.21 schwarze 66: int horiz, spans, vert;
1.6 schwarze 67:
68: rmargin = tp->rmargin;
69: maxrmargin = tp->maxrmargin;
70:
71: tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
1.5 schwarze 72:
73: /* Inhibit printing of spaces: we do padding ourselves. */
74:
75: tp->flags |= TERMP_NONOSPACE;
76: tp->flags |= TERMP_NOSPACE;
1.1 schwarze 77:
78: /*
1.6 schwarze 79: * The first time we're invoked for a given table block,
80: * calculate the table widths and decimal positions.
1.1 schwarze 81: */
82:
1.21 schwarze 83: if (sp->flags & TBL_SPAN_FIRST) {
1.6 schwarze 84: term_flushln(tp);
85:
86: tp->tbl.len = term_tbl_len;
87: tp->tbl.slen = term_tbl_strlen;
88: tp->tbl.arg = tp;
1.5 schwarze 89:
1.18 schwarze 90: tblcalc(&tp->tbl, sp, rmargin - tp->offset);
1.2 schwarze 91:
1.22 schwarze 92: /* Center the table as a whole. */
93:
94: offset = tp->offset;
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;
98: for (hp = sp->head; hp != NULL; hp = hp->next)
99: tsz += tp->tbl.cols[hp->ident].width + 3;
100: tsz -= 3;
101: if (offset + tsz > rmargin)
102: tsz -= 1;
103: tp->offset = (offset + rmargin > tsz) ?
104: (offset + rmargin - tsz) / 2 : 0;
105: }
106:
1.21 schwarze 107: /* Horizontal frame at the start of boxed tables. */
1.1 schwarze 108:
1.21 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);
1.10 schwarze 113: }
1.5 schwarze 114:
115: /* Vertical frame at the start of each row. */
116:
1.21 schwarze 117: horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
118:
119: if (sp->layout->vert ||
120: (sp->prev != NULL && sp->prev->layout->vert) ||
121: sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
122: term_word(tp, horiz ? "+" : "|");
123: else if (sp->opts->lvert)
124: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 schwarze 125:
126: /*
1.5 schwarze 127: * Now print the actual data itself depending on the span type.
128: * Spanner spans get a horizontal rule; data spanners have their
129: * data printed by matching data to header.
1.1 schwarze 130: */
131:
1.21 schwarze 132: if (sp->pos == TBL_SPAN_DATA) {
1.5 schwarze 133: /* Iterate over template headers. */
1.21 schwarze 134: cp = sp->layout->first;
1.5 schwarze 135: dp = sp->first;
1.7 schwarze 136: spans = 0;
1.21 schwarze 137: for (hp = sp->head; hp != NULL; hp = hp->next) {
1.11 schwarze 138:
1.16 schwarze 139: /*
1.21 schwarze 140: * Remeber whether we need a vertical bar
141: * after this cell.
1.7 schwarze 142: */
1.6 schwarze 143:
1.21 schwarze 144: vert = cp == NULL ? 0 : cp->vert;
1.10 schwarze 145:
1.21 schwarze 146: /*
147: * Print the data and advance to the next cell.
148: */
1.10 schwarze 149:
1.21 schwarze 150: if (spans == 0) {
151: tbl_data(tp, sp->opts, dp,
152: tp->tbl.cols + hp->ident);
153: if (dp != NULL) {
154: spans = dp->spans;
155: dp = dp->next;
156: }
157: } else
158: spans--;
159: if (cp != NULL)
160: cp = cp->next;
1.5 schwarze 161:
1.16 schwarze 162: /*
1.21 schwarze 163: * Separate columns, except in the middle
164: * of spans and after the last cell.
1.7 schwarze 165: */
166:
1.21 schwarze 167: if (hp->next == NULL || spans)
168: continue;
169:
170: tbl_char(tp, ASCII_NBRSP, 1);
171: if (vert > 0)
172: tbl_char(tp, '|', vert);
173: if (vert < 2 && hp->next != NULL)
174: tbl_char(tp, ASCII_NBRSP, 2 - vert);
1.1 schwarze 175: }
1.21 schwarze 176: } else if (horiz)
177: tbl_hrule(tp, sp, 0);
1.1 schwarze 178:
1.10 schwarze 179: /* Vertical frame at the end of each row. */
180:
1.21 schwarze 181: if (sp->layout->last->vert ||
182: (sp->prev != NULL && sp->prev->layout->last->vert) ||
183: (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
184: term_word(tp, horiz ? "+" : " |");
185: else if (sp->opts->rvert)
186: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.5 schwarze 187: term_flushln(tp);
1.1 schwarze 188:
1.5 schwarze 189: /*
190: * If we're the last row, clean up after ourselves: clear the
191: * existing table configuration and set it to NULL.
192: */
1.1 schwarze 193:
1.21 schwarze 194: if (sp->flags & TBL_SPAN_LAST) {
195: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
196: tbl_hrule(tp, sp, 1);
1.13 schwarze 197: tp->skipvsp = 1;
198: }
1.21 schwarze 199: if (sp->opts->opts & TBL_OPT_DBOX) {
200: tbl_hrule(tp, sp, 2);
1.13 schwarze 201: tp->skipvsp = 2;
202: }
1.6 schwarze 203: assert(tp->tbl.cols);
204: free(tp->tbl.cols);
205: tp->tbl.cols = NULL;
1.22 schwarze 206: tp->offset = offset;
1.1 schwarze 207: }
208:
1.5 schwarze 209: tp->flags &= ~TERMP_NONOSPACE;
1.6 schwarze 210: tp->rmargin = rmargin;
211: tp->maxrmargin = maxrmargin;
1.1 schwarze 212: }
213:
1.10 schwarze 214: /*
1.21 schwarze 215: * Kinds of horizontal rulers:
216: * 0: inside the table (single or double line with crossings)
217: * 1: inner frame (single line with crossings and ends)
218: * 2: outer frame (single line without crossings with ends)
1.10 schwarze 219: */
1.1 schwarze 220: static void
1.21 schwarze 221: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 schwarze 222: {
1.21 schwarze 223: const struct tbl_cell *c1, *c2;
224: int vert;
225: char line, cross;
226:
227: line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
228: cross = (kind < 2) ? '+' : '-';
229:
230: if (kind)
231: term_word(tp, "+");
232: c1 = sp->layout->first;
233: c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
234: if (c2 == c1)
235: c2 = NULL;
236: for (;;) {
237: tbl_char(tp, line, tp->tbl.cols[c1->head->ident].width + 1);
238: vert = c1->vert;
239: if ((c1 = c1->next) == NULL)
240: break;
241: if (c2 != NULL) {
242: if (vert < c2->vert)
243: vert = c2->vert;
244: c2 = c2->next;
245: }
246: if (vert)
247: tbl_char(tp, cross, vert);
248: if (vert < 2)
249: tbl_char(tp, line, 2 - vert);
1.11 schwarze 250: }
1.21 schwarze 251: if (kind) {
252: term_word(tp, "+");
253: term_flushln(tp);
1.11 schwarze 254: }
1.1 schwarze 255: }
256:
257: static void
1.14 schwarze 258: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.16 schwarze 259: const struct tbl_dat *dp,
260: const struct roffcol *col)
1.1 schwarze 261: {
262:
1.23 ! schwarze 263: if (dp == NULL) {
1.6 schwarze 264: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 schwarze 265: return;
1.5 schwarze 266: }
1.1 schwarze 267:
1.5 schwarze 268: switch (dp->pos) {
1.16 schwarze 269: case TBL_DATA_NONE:
1.6 schwarze 270: tbl_char(tp, ASCII_NBRSP, col->width);
1.5 schwarze 271: return;
1.16 schwarze 272: case TBL_DATA_HORIZ:
1.5 schwarze 273: /* FALLTHROUGH */
1.16 schwarze 274: case TBL_DATA_NHORIZ:
1.6 schwarze 275: tbl_char(tp, '-', col->width);
1.5 schwarze 276: return;
1.16 schwarze 277: case TBL_DATA_NDHORIZ:
1.1 schwarze 278: /* FALLTHROUGH */
1.16 schwarze 279: case TBL_DATA_DHORIZ:
1.6 schwarze 280: tbl_char(tp, '=', col->width);
1.5 schwarze 281: return;
1.1 schwarze 282: default:
283: break;
284: }
1.16 schwarze 285:
1.7 schwarze 286: switch (dp->layout->pos) {
1.16 schwarze 287: case TBL_CELL_HORIZ:
1.6 schwarze 288: tbl_char(tp, '-', col->width);
1.5 schwarze 289: break;
1.16 schwarze 290: case TBL_CELL_DHORIZ:
1.6 schwarze 291: tbl_char(tp, '=', col->width);
1.1 schwarze 292: break;
1.16 schwarze 293: case TBL_CELL_LONG:
1.1 schwarze 294: /* FALLTHROUGH */
1.16 schwarze 295: case TBL_CELL_CENTRE:
1.1 schwarze 296: /* FALLTHROUGH */
1.16 schwarze 297: case TBL_CELL_LEFT:
1.1 schwarze 298: /* FALLTHROUGH */
1.16 schwarze 299: case TBL_CELL_RIGHT:
1.6 schwarze 300: tbl_literal(tp, dp, col);
1.1 schwarze 301: break;
1.16 schwarze 302: case TBL_CELL_NUMBER:
1.14 schwarze 303: tbl_number(tp, opts, dp, col);
1.4 schwarze 304: break;
1.16 schwarze 305: case TBL_CELL_DOWN:
1.7 schwarze 306: tbl_char(tp, ASCII_NBRSP, col->width);
307: break;
1.1 schwarze 308: default:
309: abort();
310: /* NOTREACHED */
311: }
312: }
313:
314: static void
1.6 schwarze 315: tbl_char(struct termp *tp, char c, size_t len)
1.5 schwarze 316: {
1.6 schwarze 317: size_t i, sz;
1.5 schwarze 318: char cp[2];
1.1 schwarze 319:
1.5 schwarze 320: cp[0] = c;
321: cp[1] = '\0';
1.1 schwarze 322:
1.5 schwarze 323: sz = term_strlen(tp, cp);
1.1 schwarze 324:
1.5 schwarze 325: for (i = 0; i < len; i += sz)
326: term_word(tp, cp);
1.1 schwarze 327: }
328:
329: static void
1.16 schwarze 330: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.6 schwarze 331: const struct roffcol *col)
1.1 schwarze 332: {
1.12 schwarze 333: struct tbl_head *hp;
334: size_t width, len, padl, padr;
335: int spans;
1.1 schwarze 336:
1.7 schwarze 337: assert(dp->string);
1.10 schwarze 338: len = term_strlen(tp, dp->string);
1.12 schwarze 339:
340: hp = dp->layout->head->next;
341: width = col->width;
342: for (spans = dp->spans; spans--; hp = hp->next)
343: width += tp->tbl.cols[hp->ident].width + 3;
344:
345: padr = width > len ? width - len : 0;
1.10 schwarze 346: padl = 0;
1.5 schwarze 347:
1.7 schwarze 348: switch (dp->layout->pos) {
1.16 schwarze 349: case TBL_CELL_LONG:
1.10 schwarze 350: padl = term_len(tp, 1);
351: padr = padr > padl ? padr - padl : 0;
1.1 schwarze 352: break;
1.16 schwarze 353: case TBL_CELL_CENTRE:
1.10 schwarze 354: if (2 > padr)
1.8 schwarze 355: break;
1.10 schwarze 356: padl = padr / 2;
1.8 schwarze 357: padr -= padl;
1.1 schwarze 358: break;
1.16 schwarze 359: case TBL_CELL_RIGHT:
1.10 schwarze 360: padl = padr;
361: padr = 0;
1.1 schwarze 362: break;
363: default:
364: break;
365: }
366:
1.5 schwarze 367: tbl_char(tp, ASCII_NBRSP, padl);
1.17 schwarze 368: tbl_word(tp, dp);
1.10 schwarze 369: tbl_char(tp, ASCII_NBRSP, padr);
1.1 schwarze 370: }
371:
1.5 schwarze 372: static void
1.14 schwarze 373: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.5 schwarze 374: const struct tbl_dat *dp,
1.6 schwarze 375: const struct roffcol *col)
1.5 schwarze 376: {
1.6 schwarze 377: char *cp;
378: char buf[2];
379: size_t sz, psz, ssz, d, padl;
380: int i;
1.5 schwarze 381:
382: /*
383: * See calc_data_number(). Left-pad by taking the offset of our
384: * and the maximum decimal; right-pad by the remaining amount.
385: */
386:
1.7 schwarze 387: assert(dp->string);
1.5 schwarze 388:
1.7 schwarze 389: sz = term_strlen(tp, dp->string);
1.5 schwarze 390:
1.14 schwarze 391: buf[0] = opts->decimal;
1.6 schwarze 392: buf[1] = '\0';
1.5 schwarze 393:
1.6 schwarze 394: psz = term_strlen(tp, buf);
1.5 schwarze 395:
1.23 ! schwarze 396: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.7 schwarze 397: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
398: buf[0] = dp->string[i];
1.5 schwarze 399: ssz += term_strlen(tp, buf);
400: }
401: d = ssz + psz;
402: } else
403: d = sz + psz;
404:
1.20 schwarze 405: if (col->decimal > d && col->width > sz) {
406: padl = col->decimal - d;
407: if (padl + sz > col->width)
408: padl = col->width - sz;
409: tbl_char(tp, ASCII_NBRSP, padl);
410: } else
411: padl = 0;
1.17 schwarze 412: tbl_word(tp, dp);
1.10 schwarze 413: if (col->width > sz + padl)
414: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.5 schwarze 415: }
1.1 schwarze 416:
1.17 schwarze 417: static void
418: tbl_word(struct termp *tp, const struct tbl_dat *dp)
419: {
420: const void *prev_font;
421:
422: prev_font = term_fontq(tp);
423: if (dp->layout->flags & TBL_CELL_BOLD)
424: term_fontpush(tp, TERMFONT_BOLD);
425: else if (dp->layout->flags & TBL_CELL_ITALIC)
426: term_fontpush(tp, TERMFONT_UNDER);
427:
428: term_word(tp, dp->string);
429:
430: term_fontpopq(tp, prev_font);
431: }
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