Annotation of src/usr.bin/mandoc/tbl_term.c, Revision 1.25
1.25 ! schwarze 1: /* $OpenBSD: tbl_term.c,v 1.24 2015/01/30 04:08:37 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: {
1.21 schwarze 61: const struct tbl_cell *cp;
1.6 schwarze 62: const struct tbl_dat *dp;
1.22 schwarze 63: static size_t offset;
64: size_t rmargin, maxrmargin, tsz;
1.24 schwarze 65: int ic, horiz, spans, vert;
1.6 schwarze 66:
67: rmargin = tp->rmargin;
68: maxrmargin = tp->maxrmargin;
69:
70: tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
1.5 schwarze 71:
72: /* Inhibit printing of spaces: we do padding ourselves. */
73:
74: tp->flags |= TERMP_NONOSPACE;
75: tp->flags |= TERMP_NOSPACE;
1.1 schwarze 76:
77: /*
1.6 schwarze 78: * The first time we're invoked for a given table block,
79: * calculate the table widths and decimal positions.
1.1 schwarze 80: */
81:
1.25 ! schwarze 82: if (tp->tbl.cols == NULL) {
1.6 schwarze 83: term_flushln(tp);
84:
85: tp->tbl.len = term_tbl_len;
86: tp->tbl.slen = term_tbl_strlen;
87: tp->tbl.arg = tp;
1.5 schwarze 88:
1.18 schwarze 89: tblcalc(&tp->tbl, sp, rmargin - tp->offset);
1.2 schwarze 90:
1.22 schwarze 91: /* Center the table as a whole. */
92:
93: offset = tp->offset;
94: if (sp->opts->opts & TBL_OPT_CENTRE) {
95: tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
96: ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
1.24 schwarze 97: for (ic = 0; ic < sp->opts->cols; ic++)
98: tsz += tp->tbl.cols[ic].width + 3;
1.22 schwarze 99: tsz -= 3;
100: if (offset + tsz > rmargin)
101: tsz -= 1;
102: tp->offset = (offset + rmargin > tsz) ?
103: (offset + rmargin - tsz) / 2 : 0;
104: }
105:
1.21 schwarze 106: /* Horizontal frame at the start of boxed tables. */
1.1 schwarze 107:
1.21 schwarze 108: if (sp->opts->opts & TBL_OPT_DBOX)
109: tbl_hrule(tp, sp, 2);
110: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
111: tbl_hrule(tp, sp, 1);
1.10 schwarze 112: }
1.5 schwarze 113:
114: /* Vertical frame at the start of each row. */
115:
1.21 schwarze 116: horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
117:
118: if (sp->layout->vert ||
119: (sp->prev != NULL && sp->prev->layout->vert) ||
120: sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
121: term_word(tp, horiz ? "+" : "|");
122: else if (sp->opts->lvert)
123: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 schwarze 124:
125: /*
1.5 schwarze 126: * Now print the actual data itself depending on the span type.
1.24 schwarze 127: * Match data cells to column numbers.
1.1 schwarze 128: */
129:
1.21 schwarze 130: if (sp->pos == TBL_SPAN_DATA) {
131: cp = sp->layout->first;
1.5 schwarze 132: dp = sp->first;
1.7 schwarze 133: spans = 0;
1.24 schwarze 134: for (ic = 0; ic < sp->opts->cols; ic++) {
1.11 schwarze 135:
1.16 schwarze 136: /*
1.21 schwarze 137: * Remeber whether we need a vertical bar
138: * after this cell.
1.7 schwarze 139: */
1.6 schwarze 140:
1.21 schwarze 141: vert = cp == NULL ? 0 : cp->vert;
1.10 schwarze 142:
1.21 schwarze 143: /*
144: * Print the data and advance to the next cell.
145: */
1.10 schwarze 146:
1.21 schwarze 147: if (spans == 0) {
1.24 schwarze 148: tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
1.21 schwarze 149: if (dp != NULL) {
150: spans = dp->spans;
151: dp = dp->next;
152: }
153: } else
154: spans--;
155: if (cp != NULL)
156: cp = cp->next;
1.5 schwarze 157:
1.16 schwarze 158: /*
1.21 schwarze 159: * Separate columns, except in the middle
160: * of spans and after the last cell.
1.7 schwarze 161: */
162:
1.24 schwarze 163: if (ic + 1 == sp->opts->cols || spans)
1.21 schwarze 164: continue;
165:
166: tbl_char(tp, ASCII_NBRSP, 1);
167: if (vert > 0)
168: tbl_char(tp, '|', vert);
1.24 schwarze 169: if (vert < 2)
1.21 schwarze 170: tbl_char(tp, ASCII_NBRSP, 2 - vert);
1.1 schwarze 171: }
1.21 schwarze 172: } else if (horiz)
173: tbl_hrule(tp, sp, 0);
1.1 schwarze 174:
1.10 schwarze 175: /* Vertical frame at the end of each row. */
176:
1.21 schwarze 177: if (sp->layout->last->vert ||
178: (sp->prev != NULL && sp->prev->layout->last->vert) ||
179: (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
180: term_word(tp, horiz ? "+" : " |");
181: else if (sp->opts->rvert)
182: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.5 schwarze 183: term_flushln(tp);
1.1 schwarze 184:
1.5 schwarze 185: /*
186: * If we're the last row, clean up after ourselves: clear the
187: * existing table configuration and set it to NULL.
188: */
1.1 schwarze 189:
1.25 ! schwarze 190: if (sp->next == NULL) {
1.21 schwarze 191: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
192: tbl_hrule(tp, sp, 1);
1.13 schwarze 193: tp->skipvsp = 1;
194: }
1.21 schwarze 195: if (sp->opts->opts & TBL_OPT_DBOX) {
196: tbl_hrule(tp, sp, 2);
1.13 schwarze 197: tp->skipvsp = 2;
198: }
1.6 schwarze 199: assert(tp->tbl.cols);
200: free(tp->tbl.cols);
201: tp->tbl.cols = NULL;
1.22 schwarze 202: tp->offset = offset;
1.1 schwarze 203: }
204:
1.5 schwarze 205: tp->flags &= ~TERMP_NONOSPACE;
1.6 schwarze 206: tp->rmargin = rmargin;
207: tp->maxrmargin = maxrmargin;
1.1 schwarze 208: }
209:
1.10 schwarze 210: /*
1.21 schwarze 211: * Kinds of horizontal rulers:
212: * 0: inside the table (single or double line with crossings)
213: * 1: inner frame (single line with crossings and ends)
214: * 2: outer frame (single line without crossings with ends)
1.10 schwarze 215: */
1.1 schwarze 216: static void
1.21 schwarze 217: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 schwarze 218: {
1.21 schwarze 219: const struct tbl_cell *c1, *c2;
220: int vert;
221: char line, cross;
222:
223: line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
224: cross = (kind < 2) ? '+' : '-';
225:
226: if (kind)
227: term_word(tp, "+");
228: c1 = sp->layout->first;
229: c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
230: if (c2 == c1)
231: c2 = NULL;
232: for (;;) {
1.24 schwarze 233: tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
1.21 schwarze 234: vert = c1->vert;
235: if ((c1 = c1->next) == NULL)
236: break;
237: if (c2 != NULL) {
238: if (vert < c2->vert)
239: vert = c2->vert;
240: c2 = c2->next;
241: }
242: if (vert)
243: tbl_char(tp, cross, vert);
244: if (vert < 2)
245: tbl_char(tp, line, 2 - vert);
1.11 schwarze 246: }
1.21 schwarze 247: if (kind) {
248: term_word(tp, "+");
249: term_flushln(tp);
1.11 schwarze 250: }
1.1 schwarze 251: }
252:
253: static void
1.14 schwarze 254: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.16 schwarze 255: const struct tbl_dat *dp,
256: const struct roffcol *col)
1.1 schwarze 257: {
258:
1.23 schwarze 259: if (dp == NULL) {
1.6 schwarze 260: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 schwarze 261: return;
1.5 schwarze 262: }
1.1 schwarze 263:
1.5 schwarze 264: switch (dp->pos) {
1.16 schwarze 265: case TBL_DATA_NONE:
1.6 schwarze 266: tbl_char(tp, ASCII_NBRSP, col->width);
1.5 schwarze 267: return;
1.16 schwarze 268: case TBL_DATA_HORIZ:
1.5 schwarze 269: /* FALLTHROUGH */
1.16 schwarze 270: case TBL_DATA_NHORIZ:
1.6 schwarze 271: tbl_char(tp, '-', col->width);
1.5 schwarze 272: return;
1.16 schwarze 273: case TBL_DATA_NDHORIZ:
1.1 schwarze 274: /* FALLTHROUGH */
1.16 schwarze 275: case TBL_DATA_DHORIZ:
1.6 schwarze 276: tbl_char(tp, '=', col->width);
1.5 schwarze 277: return;
1.1 schwarze 278: default:
279: break;
280: }
1.16 schwarze 281:
1.7 schwarze 282: switch (dp->layout->pos) {
1.16 schwarze 283: case TBL_CELL_HORIZ:
1.6 schwarze 284: tbl_char(tp, '-', col->width);
1.5 schwarze 285: break;
1.16 schwarze 286: case TBL_CELL_DHORIZ:
1.6 schwarze 287: tbl_char(tp, '=', col->width);
1.1 schwarze 288: break;
1.16 schwarze 289: case TBL_CELL_LONG:
1.1 schwarze 290: /* FALLTHROUGH */
1.16 schwarze 291: case TBL_CELL_CENTRE:
1.1 schwarze 292: /* FALLTHROUGH */
1.16 schwarze 293: case TBL_CELL_LEFT:
1.1 schwarze 294: /* FALLTHROUGH */
1.16 schwarze 295: case TBL_CELL_RIGHT:
1.6 schwarze 296: tbl_literal(tp, dp, col);
1.1 schwarze 297: break;
1.16 schwarze 298: case TBL_CELL_NUMBER:
1.14 schwarze 299: tbl_number(tp, opts, dp, col);
1.4 schwarze 300: break;
1.16 schwarze 301: case TBL_CELL_DOWN:
1.7 schwarze 302: tbl_char(tp, ASCII_NBRSP, col->width);
303: break;
1.1 schwarze 304: default:
305: abort();
306: /* NOTREACHED */
307: }
308: }
309:
310: static void
1.6 schwarze 311: tbl_char(struct termp *tp, char c, size_t len)
1.5 schwarze 312: {
1.6 schwarze 313: size_t i, sz;
1.5 schwarze 314: char cp[2];
1.1 schwarze 315:
1.5 schwarze 316: cp[0] = c;
317: cp[1] = '\0';
1.1 schwarze 318:
1.5 schwarze 319: sz = term_strlen(tp, cp);
1.1 schwarze 320:
1.5 schwarze 321: for (i = 0; i < len; i += sz)
322: term_word(tp, cp);
1.1 schwarze 323: }
324:
325: static void
1.16 schwarze 326: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.6 schwarze 327: const struct roffcol *col)
1.1 schwarze 328: {
1.24 schwarze 329: size_t len, padl, padr, width;
330: int ic, spans;
1.1 schwarze 331:
1.7 schwarze 332: assert(dp->string);
1.10 schwarze 333: len = term_strlen(tp, dp->string);
1.12 schwarze 334: width = col->width;
1.24 schwarze 335: ic = dp->layout->col;
336: spans = dp->spans;
337: while (spans--)
338: width += tp->tbl.cols[++ic].width + 3;
1.12 schwarze 339:
340: padr = width > len ? width - len : 0;
1.10 schwarze 341: padl = 0;
1.5 schwarze 342:
1.7 schwarze 343: switch (dp->layout->pos) {
1.16 schwarze 344: case TBL_CELL_LONG:
1.10 schwarze 345: padl = term_len(tp, 1);
346: padr = padr > padl ? padr - padl : 0;
1.1 schwarze 347: break;
1.16 schwarze 348: case TBL_CELL_CENTRE:
1.10 schwarze 349: if (2 > padr)
1.8 schwarze 350: break;
1.10 schwarze 351: padl = padr / 2;
1.8 schwarze 352: padr -= padl;
1.1 schwarze 353: break;
1.16 schwarze 354: case TBL_CELL_RIGHT:
1.10 schwarze 355: padl = padr;
356: padr = 0;
1.1 schwarze 357: break;
358: default:
359: break;
360: }
361:
1.5 schwarze 362: tbl_char(tp, ASCII_NBRSP, padl);
1.17 schwarze 363: tbl_word(tp, dp);
1.10 schwarze 364: tbl_char(tp, ASCII_NBRSP, padr);
1.1 schwarze 365: }
366:
1.5 schwarze 367: static void
1.14 schwarze 368: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.5 schwarze 369: const struct tbl_dat *dp,
1.6 schwarze 370: const struct roffcol *col)
1.5 schwarze 371: {
1.6 schwarze 372: char *cp;
373: char buf[2];
374: size_t sz, psz, ssz, d, padl;
375: int i;
1.5 schwarze 376:
377: /*
378: * See calc_data_number(). Left-pad by taking the offset of our
379: * and the maximum decimal; right-pad by the remaining amount.
380: */
381:
1.7 schwarze 382: assert(dp->string);
1.5 schwarze 383:
1.7 schwarze 384: sz = term_strlen(tp, dp->string);
1.5 schwarze 385:
1.14 schwarze 386: buf[0] = opts->decimal;
1.6 schwarze 387: buf[1] = '\0';
1.5 schwarze 388:
1.6 schwarze 389: psz = term_strlen(tp, buf);
1.5 schwarze 390:
1.23 schwarze 391: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.7 schwarze 392: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
393: buf[0] = dp->string[i];
1.5 schwarze 394: ssz += term_strlen(tp, buf);
395: }
396: d = ssz + psz;
397: } else
398: d = sz + psz;
399:
1.20 schwarze 400: if (col->decimal > d && col->width > sz) {
401: padl = col->decimal - d;
402: if (padl + sz > col->width)
403: padl = col->width - sz;
404: tbl_char(tp, ASCII_NBRSP, padl);
405: } else
406: padl = 0;
1.17 schwarze 407: tbl_word(tp, dp);
1.10 schwarze 408: if (col->width > sz + padl)
409: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.5 schwarze 410: }
1.1 schwarze 411:
1.17 schwarze 412: static void
413: tbl_word(struct termp *tp, const struct tbl_dat *dp)
414: {
415: const void *prev_font;
416:
417: prev_font = term_fontq(tp);
418: if (dp->layout->flags & TBL_CELL_BOLD)
419: term_fontpush(tp, TERMFONT_BOLD);
420: else if (dp->layout->flags & TBL_CELL_ITALIC)
421: term_fontpush(tp, TERMFONT_UNDER);
422:
423: term_word(tp, dp->string);
424:
425: term_fontpopq(tp, prev_font);
426: }
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