Annotation of src/usr.bin/mandoc/tbl_term.c, Revision 1.33
1.33 ! schwarze 1: /* $OpenBSD: tbl_term.c,v 1.32 2017/06/04 22:43:50 schwarze Exp $ */
1.1 schwarze 2: /*
1.9 schwarze 3: * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.32 schwarze 4: * Copyright (c) 2011,2012,2014,2015,2017 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:
1.30 schwarze 48: return term_strlen((const struct termp *)arg, p);
1.6 schwarze 49: }
50:
51: static size_t
52: term_tbl_len(size_t sz, void *arg)
53: {
54:
1.30 schwarze 55: return term_len((const struct termp *)arg, sz);
1.6 schwarze 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;
1.32 schwarze 64: size_t tsz;
1.24 schwarze 65: int ic, horiz, spans, vert;
1.27 schwarze 66:
1.5 schwarze 67: /* Inhibit printing of spaces: we do padding ourselves. */
68:
1.32 schwarze 69: tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE | TERMP_BRNEVER;
1.1 schwarze 70:
71: /*
1.6 schwarze 72: * The first time we're invoked for a given table block,
73: * calculate the table widths and decimal positions.
1.1 schwarze 74: */
75:
1.25 schwarze 76: if (tp->tbl.cols == NULL) {
1.6 schwarze 77: tp->tbl.len = term_tbl_len;
78: tp->tbl.slen = term_tbl_strlen;
79: tp->tbl.arg = tp;
1.5 schwarze 80:
1.33 ! schwarze 81: tblcalc(&tp->tbl, sp, tp->tcol->rmargin - tp->tcol->offset);
1.2 schwarze 82:
1.22 schwarze 83: /* Center the table as a whole. */
84:
1.33 ! schwarze 85: offset = tp->tcol->offset;
1.22 schwarze 86: if (sp->opts->opts & TBL_OPT_CENTRE) {
87: tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
88: ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
1.24 schwarze 89: for (ic = 0; ic < sp->opts->cols; ic++)
90: tsz += tp->tbl.cols[ic].width + 3;
1.22 schwarze 91: tsz -= 3;
1.33 ! schwarze 92: if (offset + tsz > tp->tcol->rmargin)
1.22 schwarze 93: tsz -= 1;
1.33 ! schwarze 94: tp->tcol->offset = offset + tp->tcol->rmargin > tsz ?
! 95: (offset + tp->tcol->rmargin - tsz) / 2 : 0;
1.22 schwarze 96: }
97:
1.21 schwarze 98: /* Horizontal frame at the start of boxed tables. */
1.1 schwarze 99:
1.21 schwarze 100: if (sp->opts->opts & TBL_OPT_DBOX)
101: tbl_hrule(tp, sp, 2);
102: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
103: tbl_hrule(tp, sp, 1);
1.10 schwarze 104: }
1.5 schwarze 105:
106: /* Vertical frame at the start of each row. */
107:
1.21 schwarze 108: horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
109:
110: if (sp->layout->vert ||
111: (sp->prev != NULL && sp->prev->layout->vert) ||
112: sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
113: term_word(tp, horiz ? "+" : "|");
114: else if (sp->opts->lvert)
115: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.1 schwarze 116:
117: /*
1.5 schwarze 118: * Now print the actual data itself depending on the span type.
1.24 schwarze 119: * Match data cells to column numbers.
1.1 schwarze 120: */
121:
1.21 schwarze 122: if (sp->pos == TBL_SPAN_DATA) {
123: cp = sp->layout->first;
1.5 schwarze 124: dp = sp->first;
1.7 schwarze 125: spans = 0;
1.24 schwarze 126: for (ic = 0; ic < sp->opts->cols; ic++) {
1.11 schwarze 127:
1.16 schwarze 128: /*
1.21 schwarze 129: * Remeber whether we need a vertical bar
130: * after this cell.
1.7 schwarze 131: */
1.6 schwarze 132:
1.21 schwarze 133: vert = cp == NULL ? 0 : cp->vert;
1.10 schwarze 134:
1.21 schwarze 135: /*
136: * Print the data and advance to the next cell.
137: */
1.10 schwarze 138:
1.21 schwarze 139: if (spans == 0) {
1.24 schwarze 140: tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
1.21 schwarze 141: if (dp != NULL) {
142: spans = dp->spans;
143: dp = dp->next;
144: }
145: } else
146: spans--;
147: if (cp != NULL)
148: cp = cp->next;
1.5 schwarze 149:
1.16 schwarze 150: /*
1.21 schwarze 151: * Separate columns, except in the middle
152: * of spans and after the last cell.
1.7 schwarze 153: */
154:
1.24 schwarze 155: if (ic + 1 == sp->opts->cols || spans)
1.21 schwarze 156: continue;
157:
158: tbl_char(tp, ASCII_NBRSP, 1);
159: if (vert > 0)
160: tbl_char(tp, '|', vert);
1.24 schwarze 161: if (vert < 2)
1.21 schwarze 162: tbl_char(tp, ASCII_NBRSP, 2 - vert);
1.1 schwarze 163: }
1.21 schwarze 164: } else if (horiz)
165: tbl_hrule(tp, sp, 0);
1.1 schwarze 166:
1.10 schwarze 167: /* Vertical frame at the end of each row. */
168:
1.21 schwarze 169: if (sp->layout->last->vert ||
170: (sp->prev != NULL && sp->prev->layout->last->vert) ||
171: (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
172: term_word(tp, horiz ? "+" : " |");
173: else if (sp->opts->rvert)
174: tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
1.5 schwarze 175: term_flushln(tp);
1.1 schwarze 176:
1.5 schwarze 177: /*
178: * If we're the last row, clean up after ourselves: clear the
179: * existing table configuration and set it to NULL.
180: */
1.1 schwarze 181:
1.25 schwarze 182: if (sp->next == NULL) {
1.21 schwarze 183: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
184: tbl_hrule(tp, sp, 1);
1.13 schwarze 185: tp->skipvsp = 1;
186: }
1.21 schwarze 187: if (sp->opts->opts & TBL_OPT_DBOX) {
188: tbl_hrule(tp, sp, 2);
1.13 schwarze 189: tp->skipvsp = 2;
190: }
1.6 schwarze 191: assert(tp->tbl.cols);
192: free(tp->tbl.cols);
193: tp->tbl.cols = NULL;
1.33 ! schwarze 194: tp->tcol->offset = offset;
1.1 schwarze 195: }
1.32 schwarze 196: tp->flags &= ~(TERMP_NONOSPACE | TERMP_BRNEVER);
1.1 schwarze 197: }
198:
1.10 schwarze 199: /*
1.21 schwarze 200: * Kinds of horizontal rulers:
201: * 0: inside the table (single or double line with crossings)
202: * 1: inner frame (single line with crossings and ends)
203: * 2: outer frame (single line without crossings with ends)
1.10 schwarze 204: */
1.1 schwarze 205: static void
1.21 schwarze 206: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 schwarze 207: {
1.21 schwarze 208: const struct tbl_cell *c1, *c2;
209: int vert;
210: char line, cross;
211:
212: line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
213: cross = (kind < 2) ? '+' : '-';
214:
215: if (kind)
216: term_word(tp, "+");
217: c1 = sp->layout->first;
218: c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
219: if (c2 == c1)
220: c2 = NULL;
221: for (;;) {
1.24 schwarze 222: tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
1.21 schwarze 223: vert = c1->vert;
224: if ((c1 = c1->next) == NULL)
225: break;
226: if (c2 != NULL) {
227: if (vert < c2->vert)
228: vert = c2->vert;
229: c2 = c2->next;
230: }
231: if (vert)
232: tbl_char(tp, cross, vert);
233: if (vert < 2)
234: tbl_char(tp, line, 2 - vert);
1.11 schwarze 235: }
1.21 schwarze 236: if (kind) {
237: term_word(tp, "+");
238: term_flushln(tp);
1.11 schwarze 239: }
1.1 schwarze 240: }
241:
242: static void
1.14 schwarze 243: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.16 schwarze 244: const struct tbl_dat *dp,
245: const struct roffcol *col)
1.1 schwarze 246: {
247:
1.23 schwarze 248: if (dp == NULL) {
1.6 schwarze 249: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 schwarze 250: return;
1.5 schwarze 251: }
1.1 schwarze 252:
1.5 schwarze 253: switch (dp->pos) {
1.16 schwarze 254: case TBL_DATA_NONE:
1.6 schwarze 255: tbl_char(tp, ASCII_NBRSP, col->width);
1.5 schwarze 256: return;
1.16 schwarze 257: case TBL_DATA_HORIZ:
258: case TBL_DATA_NHORIZ:
1.6 schwarze 259: tbl_char(tp, '-', col->width);
1.5 schwarze 260: return;
1.16 schwarze 261: case TBL_DATA_NDHORIZ:
262: case TBL_DATA_DHORIZ:
1.6 schwarze 263: tbl_char(tp, '=', col->width);
1.5 schwarze 264: return;
1.1 schwarze 265: default:
266: break;
267: }
1.16 schwarze 268:
1.7 schwarze 269: switch (dp->layout->pos) {
1.16 schwarze 270: case TBL_CELL_HORIZ:
1.6 schwarze 271: tbl_char(tp, '-', col->width);
1.5 schwarze 272: break;
1.16 schwarze 273: case TBL_CELL_DHORIZ:
1.6 schwarze 274: tbl_char(tp, '=', col->width);
1.1 schwarze 275: break;
1.16 schwarze 276: case TBL_CELL_LONG:
277: case TBL_CELL_CENTRE:
278: case TBL_CELL_LEFT:
279: case TBL_CELL_RIGHT:
1.6 schwarze 280: tbl_literal(tp, dp, col);
1.1 schwarze 281: break;
1.16 schwarze 282: case TBL_CELL_NUMBER:
1.14 schwarze 283: tbl_number(tp, opts, dp, col);
1.4 schwarze 284: break;
1.16 schwarze 285: case TBL_CELL_DOWN:
1.7 schwarze 286: tbl_char(tp, ASCII_NBRSP, col->width);
287: break;
1.1 schwarze 288: default:
289: abort();
290: }
291: }
292:
293: static void
1.6 schwarze 294: tbl_char(struct termp *tp, char c, size_t len)
1.5 schwarze 295: {
1.6 schwarze 296: size_t i, sz;
1.5 schwarze 297: char cp[2];
1.1 schwarze 298:
1.5 schwarze 299: cp[0] = c;
300: cp[1] = '\0';
1.1 schwarze 301:
1.5 schwarze 302: sz = term_strlen(tp, cp);
1.1 schwarze 303:
1.5 schwarze 304: for (i = 0; i < len; i += sz)
305: term_word(tp, cp);
1.1 schwarze 306: }
307:
308: static void
1.16 schwarze 309: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.6 schwarze 310: const struct roffcol *col)
1.1 schwarze 311: {
1.24 schwarze 312: size_t len, padl, padr, width;
313: int ic, spans;
1.1 schwarze 314:
1.7 schwarze 315: assert(dp->string);
1.10 schwarze 316: len = term_strlen(tp, dp->string);
1.12 schwarze 317: width = col->width;
1.24 schwarze 318: ic = dp->layout->col;
319: spans = dp->spans;
320: while (spans--)
321: width += tp->tbl.cols[++ic].width + 3;
1.12 schwarze 322:
323: padr = width > len ? width - len : 0;
1.10 schwarze 324: padl = 0;
1.5 schwarze 325:
1.7 schwarze 326: switch (dp->layout->pos) {
1.16 schwarze 327: case TBL_CELL_LONG:
1.10 schwarze 328: padl = term_len(tp, 1);
329: padr = padr > padl ? padr - padl : 0;
1.1 schwarze 330: break;
1.16 schwarze 331: case TBL_CELL_CENTRE:
1.10 schwarze 332: if (2 > padr)
1.8 schwarze 333: break;
1.10 schwarze 334: padl = padr / 2;
1.8 schwarze 335: padr -= padl;
1.1 schwarze 336: break;
1.16 schwarze 337: case TBL_CELL_RIGHT:
1.10 schwarze 338: padl = padr;
339: padr = 0;
1.1 schwarze 340: break;
341: default:
342: break;
343: }
344:
1.5 schwarze 345: tbl_char(tp, ASCII_NBRSP, padl);
1.17 schwarze 346: tbl_word(tp, dp);
1.10 schwarze 347: tbl_char(tp, ASCII_NBRSP, padr);
1.1 schwarze 348: }
349:
1.5 schwarze 350: static void
1.14 schwarze 351: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.5 schwarze 352: const struct tbl_dat *dp,
1.6 schwarze 353: const struct roffcol *col)
1.5 schwarze 354: {
1.6 schwarze 355: char *cp;
356: char buf[2];
357: size_t sz, psz, ssz, d, padl;
358: int i;
1.5 schwarze 359:
360: /*
361: * See calc_data_number(). Left-pad by taking the offset of our
362: * and the maximum decimal; right-pad by the remaining amount.
363: */
364:
1.7 schwarze 365: assert(dp->string);
1.5 schwarze 366:
1.7 schwarze 367: sz = term_strlen(tp, dp->string);
1.5 schwarze 368:
1.14 schwarze 369: buf[0] = opts->decimal;
1.6 schwarze 370: buf[1] = '\0';
1.5 schwarze 371:
1.6 schwarze 372: psz = term_strlen(tp, buf);
1.5 schwarze 373:
1.23 schwarze 374: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.7 schwarze 375: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
376: buf[0] = dp->string[i];
1.5 schwarze 377: ssz += term_strlen(tp, buf);
378: }
379: d = ssz + psz;
380: } else
381: d = sz + psz;
382:
1.20 schwarze 383: if (col->decimal > d && col->width > sz) {
384: padl = col->decimal - d;
385: if (padl + sz > col->width)
386: padl = col->width - sz;
387: tbl_char(tp, ASCII_NBRSP, padl);
388: } else
389: padl = 0;
1.17 schwarze 390: tbl_word(tp, dp);
1.10 schwarze 391: if (col->width > sz + padl)
392: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.5 schwarze 393: }
1.1 schwarze 394:
1.17 schwarze 395: static void
396: tbl_word(struct termp *tp, const struct tbl_dat *dp)
397: {
1.26 schwarze 398: int prev_font;
1.17 schwarze 399:
1.26 schwarze 400: prev_font = tp->fonti;
1.17 schwarze 401: if (dp->layout->flags & TBL_CELL_BOLD)
402: term_fontpush(tp, TERMFONT_BOLD);
403: else if (dp->layout->flags & TBL_CELL_ITALIC)
404: term_fontpush(tp, TERMFONT_UNDER);
405:
406: term_word(tp, dp->string);
407:
408: term_fontpopq(tp, prev_font);
409: }
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