Annotation of mandoc/tbl_term.c, Revision 1.41
1.41 ! schwarze 1: /* $Id: tbl_term.c,v 1.40 2015/03/06 15:48:53 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;
1.39 schwarze 68:
1.11 kristaps 69: rmargin = tp->rmargin;
70: maxrmargin = tp->maxrmargin;
71:
72: tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
1.1 kristaps 73:
1.4 kristaps 74: /* Inhibit printing of spaces: we do padding ourselves. */
75:
76: tp->flags |= TERMP_NONOSPACE;
77: tp->flags |= TERMP_NOSPACE;
78:
79: /*
1.11 kristaps 80: * The first time we're invoked for a given table block,
81: * calculate the table widths and decimal positions.
1.4 kristaps 82: */
83:
1.37 schwarze 84: if (tp->tbl.cols == NULL) {
1.11 kristaps 85: tp->tbl.len = term_tbl_len;
86: tp->tbl.slen = term_tbl_strlen;
87: tp->tbl.arg = tp;
1.4 kristaps 88:
1.30 schwarze 89: tblcalc(&tp->tbl, sp, rmargin - tp->offset);
1.1 kristaps 90:
1.34 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;
1.36 schwarze 97: for (ic = 0; ic < sp->opts->cols; ic++)
98: tsz += tp->tbl.cols[ic].width + 3;
1.34 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:
1.33 schwarze 106: /* Horizontal frame at the start of boxed tables. */
1.4 kristaps 107:
1.33 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);
1.21 schwarze 112: }
1.1 kristaps 113:
1.4 kristaps 114: /* Vertical frame at the start of each row. */
1.1 kristaps 115:
1.33 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 kristaps 124:
1.4 kristaps 125: /*
126: * Now print the actual data itself depending on the span type.
1.36 schwarze 127: * Match data cells to column numbers.
1.4 kristaps 128: */
129:
1.33 schwarze 130: if (sp->pos == TBL_SPAN_DATA) {
131: cp = sp->layout->first;
1.4 kristaps 132: dp = sp->first;
1.16 kristaps 133: spans = 0;
1.36 schwarze 134: for (ic = 0; ic < sp->opts->cols; ic++) {
1.22 schwarze 135:
1.27 schwarze 136: /*
1.33 schwarze 137: * Remeber whether we need a vertical bar
138: * after this cell.
1.16 kristaps 139: */
1.11 kristaps 140:
1.33 schwarze 141: vert = cp == NULL ? 0 : cp->vert;
1.21 schwarze 142:
1.33 schwarze 143: /*
144: * Print the data and advance to the next cell.
145: */
1.21 schwarze 146:
1.33 schwarze 147: if (spans == 0) {
1.36 schwarze 148: tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
1.33 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;
1.1 kristaps 157:
1.27 schwarze 158: /*
1.33 schwarze 159: * Separate columns, except in the middle
160: * of spans and after the last cell.
1.16 kristaps 161: */
162:
1.36 schwarze 163: if (ic + 1 == sp->opts->cols || spans)
1.33 schwarze 164: continue;
165:
166: tbl_char(tp, ASCII_NBRSP, 1);
167: if (vert > 0)
168: tbl_char(tp, '|', vert);
1.36 schwarze 169: if (vert < 2)
1.33 schwarze 170: tbl_char(tp, ASCII_NBRSP, 2 - vert);
1.1 kristaps 171: }
1.33 schwarze 172: } else if (horiz)
173: tbl_hrule(tp, sp, 0);
1.1 kristaps 174:
1.21 schwarze 175: /* Vertical frame at the end of each row. */
176:
1.33 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);
1.1 kristaps 183: term_flushln(tp);
184:
1.4 kristaps 185: /*
186: * If we're the last row, clean up after ourselves: clear the
187: * existing table configuration and set it to NULL.
188: */
189:
1.37 schwarze 190: if (sp->next == NULL) {
1.33 schwarze 191: if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
192: tbl_hrule(tp, sp, 1);
1.24 schwarze 193: tp->skipvsp = 1;
194: }
1.33 schwarze 195: if (sp->opts->opts & TBL_OPT_DBOX) {
196: tbl_hrule(tp, sp, 2);
1.24 schwarze 197: tp->skipvsp = 2;
198: }
1.11 kristaps 199: assert(tp->tbl.cols);
200: free(tp->tbl.cols);
201: tp->tbl.cols = NULL;
1.34 schwarze 202: tp->offset = offset;
1.2 kristaps 203: }
1.1 kristaps 204:
205: tp->flags &= ~TERMP_NONOSPACE;
1.11 kristaps 206: tp->rmargin = rmargin;
207: tp->maxrmargin = maxrmargin;
1.1 kristaps 208: }
209:
1.21 schwarze 210: /*
1.33 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)
1.21 schwarze 215: */
1.1 kristaps 216: static void
1.33 schwarze 217: tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
1.1 kristaps 218: {
1.33 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 (;;) {
1.36 schwarze 233: tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
1.33 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);
1.22 schwarze 246: }
1.33 schwarze 247: if (kind) {
248: term_word(tp, "+");
249: term_flushln(tp);
1.22 schwarze 250: }
1.1 kristaps 251: }
252:
253: static void
1.25 schwarze 254: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.27 schwarze 255: const struct tbl_dat *dp,
256: const struct roffcol *col)
1.1 kristaps 257: {
258:
1.35 schwarze 259: if (dp == NULL) {
1.11 kristaps 260: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 261: return;
262: }
263:
264: switch (dp->pos) {
1.27 schwarze 265: case TBL_DATA_NONE:
1.11 kristaps 266: tbl_char(tp, ASCII_NBRSP, col->width);
1.10 kristaps 267: return;
1.27 schwarze 268: case TBL_DATA_HORIZ:
1.1 kristaps 269: /* FALLTHROUGH */
1.27 schwarze 270: case TBL_DATA_NHORIZ:
1.11 kristaps 271: tbl_char(tp, '-', col->width);
1.7 kristaps 272: return;
1.27 schwarze 273: case TBL_DATA_NDHORIZ:
1.7 kristaps 274: /* FALLTHROUGH */
1.27 schwarze 275: case TBL_DATA_DHORIZ:
1.11 kristaps 276: tbl_char(tp, '=', col->width);
1.1 kristaps 277: return;
278: default:
279: break;
280: }
1.27 schwarze 281:
1.16 kristaps 282: switch (dp->layout->pos) {
1.27 schwarze 283: case TBL_CELL_HORIZ:
1.11 kristaps 284: tbl_char(tp, '-', col->width);
1.7 kristaps 285: break;
1.27 schwarze 286: case TBL_CELL_DHORIZ:
1.11 kristaps 287: tbl_char(tp, '=', col->width);
1.1 kristaps 288: break;
1.27 schwarze 289: case TBL_CELL_LONG:
1.1 kristaps 290: /* FALLTHROUGH */
1.27 schwarze 291: case TBL_CELL_CENTRE:
1.1 kristaps 292: /* FALLTHROUGH */
1.27 schwarze 293: case TBL_CELL_LEFT:
1.1 kristaps 294: /* FALLTHROUGH */
1.27 schwarze 295: case TBL_CELL_RIGHT:
1.11 kristaps 296: tbl_literal(tp, dp, col);
1.1 kristaps 297: break;
1.27 schwarze 298: case TBL_CELL_NUMBER:
1.25 schwarze 299: tbl_number(tp, opts, dp, col);
1.18 kristaps 300: break;
1.27 schwarze 301: case TBL_CELL_DOWN:
1.18 kristaps 302: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 303: break;
304: default:
305: abort();
306: }
307: }
308:
309: static void
1.12 kristaps 310: tbl_char(struct termp *tp, char c, size_t len)
1.1 kristaps 311: {
1.12 kristaps 312: size_t i, sz;
313: char cp[2];
314:
315: cp[0] = c;
316: cp[1] = '\0';
1.1 kristaps 317:
1.3 kristaps 318: sz = term_strlen(tp, cp);
319:
320: for (i = 0; i < len; i += sz)
1.1 kristaps 321: term_word(tp, cp);
322: }
323:
324: static void
1.27 schwarze 325: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.11 kristaps 326: const struct roffcol *col)
1.1 kristaps 327: {
1.36 schwarze 328: size_t len, padl, padr, width;
329: int ic, spans;
1.1 kristaps 330:
1.17 kristaps 331: assert(dp->string);
1.21 schwarze 332: len = term_strlen(tp, dp->string);
1.23 schwarze 333: width = col->width;
1.36 schwarze 334: ic = dp->layout->col;
335: spans = dp->spans;
336: while (spans--)
337: width += tp->tbl.cols[++ic].width + 3;
1.23 schwarze 338:
339: padr = width > len ? width - len : 0;
1.21 schwarze 340: padl = 0;
1.1 kristaps 341:
1.16 kristaps 342: switch (dp->layout->pos) {
1.27 schwarze 343: case TBL_CELL_LONG:
1.21 schwarze 344: padl = term_len(tp, 1);
345: padr = padr > padl ? padr - padl : 0;
1.1 kristaps 346: break;
1.27 schwarze 347: case TBL_CELL_CENTRE:
1.21 schwarze 348: if (2 > padr)
1.19 schwarze 349: break;
1.21 schwarze 350: padl = padr / 2;
1.19 schwarze 351: padr -= padl;
1.1 kristaps 352: break;
1.27 schwarze 353: case TBL_CELL_RIGHT:
1.21 schwarze 354: padl = padr;
355: padr = 0;
1.1 kristaps 356: break;
357: default:
358: break;
359: }
360:
361: tbl_char(tp, ASCII_NBRSP, padl);
1.29 schwarze 362: tbl_word(tp, dp);
1.21 schwarze 363: tbl_char(tp, ASCII_NBRSP, padr);
1.1 kristaps 364: }
365:
366: static void
1.25 schwarze 367: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.2 kristaps 368: const struct tbl_dat *dp,
1.11 kristaps 369: const struct roffcol *col)
1.1 kristaps 370: {
1.11 kristaps 371: char *cp;
372: char buf[2];
373: size_t sz, psz, ssz, d, padl;
374: int i;
1.1 kristaps 375:
376: /*
377: * See calc_data_number(). Left-pad by taking the offset of our
378: * and the maximum decimal; right-pad by the remaining amount.
379: */
380:
1.17 kristaps 381: assert(dp->string);
1.2 kristaps 382:
1.17 kristaps 383: sz = term_strlen(tp, dp->string);
1.2 kristaps 384:
1.25 schwarze 385: buf[0] = opts->decimal;
1.11 kristaps 386: buf[1] = '\0';
1.2 kristaps 387:
1.11 kristaps 388: psz = term_strlen(tp, buf);
1.10 kristaps 389:
1.35 schwarze 390: if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
1.17 kristaps 391: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
392: buf[0] = dp->string[i];
1.5 kristaps 393: ssz += term_strlen(tp, buf);
394: }
395: d = ssz + psz;
396: } else
397: d = sz + psz;
1.2 kristaps 398:
1.32 schwarze 399: if (col->decimal > d && col->width > sz) {
400: padl = col->decimal - d;
401: if (padl + sz > col->width)
402: padl = col->width - sz;
403: tbl_char(tp, ASCII_NBRSP, padl);
404: } else
405: padl = 0;
1.29 schwarze 406: tbl_word(tp, dp);
1.21 schwarze 407: if (col->width > sz + padl)
408: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.2 kristaps 409: }
410:
1.29 schwarze 411: static void
412: tbl_word(struct termp *tp, const struct tbl_dat *dp)
413: {
1.38 schwarze 414: int prev_font;
1.29 schwarze 415:
1.38 schwarze 416: prev_font = tp->fonti;
1.29 schwarze 417: if (dp->layout->flags & TBL_CELL_BOLD)
418: term_fontpush(tp, TERMFONT_BOLD);
419: else if (dp->layout->flags & TBL_CELL_ITALIC)
420: term_fontpush(tp, TERMFONT_UNDER);
421:
422: term_word(tp, dp->string);
423:
424: term_fontpopq(tp, prev_font);
425: }
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