Annotation of mandoc/tbl_term.c, Revision 1.28
1.28 ! schwarze 1: /* $Id: tbl_term.c,v 1.27 2014/04/20 16:46:05 schwarze Exp $ */
1.1 kristaps 2: /*
1.20 kristaps 3: * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.26 schwarze 4: * Copyright (c) 2011, 2012, 2014 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 *);
1.21 schwarze 37: static size_t tbl_rulewidth(struct termp *, const struct tbl_head *);
38: static void tbl_hframe(struct termp *, const struct tbl_span *, int);
1.27 schwarze 39: static void tbl_literal(struct termp *, const struct tbl_dat *,
1.11 kristaps 40: const struct roffcol *);
1.27 schwarze 41: static void tbl_number(struct termp *, const struct tbl_opts *,
42: const struct tbl_dat *,
1.11 kristaps 43: const struct roffcol *);
44: static void tbl_hrule(struct termp *, const struct tbl_span *);
45: static void tbl_vrule(struct termp *, const struct tbl_head *);
46:
47:
48: static size_t
49: term_tbl_strlen(const char *p, void *arg)
50: {
51:
52: return(term_strlen((const struct termp *)arg, p));
53: }
54:
55: static size_t
56: term_tbl_len(size_t sz, void *arg)
57: {
58:
59: return(term_len((const struct termp *)arg, sz));
60: }
1.1 kristaps 61:
62: void
63: term_tbl(struct termp *tp, const struct tbl_span *sp)
64: {
1.11 kristaps 65: const struct tbl_head *hp;
66: const struct tbl_dat *dp;
67: struct roffcol *col;
1.16 kristaps 68: int spans;
1.27 schwarze 69: size_t rmargin, maxrmargin;
1.11 kristaps 70:
71: rmargin = tp->rmargin;
72: maxrmargin = tp->maxrmargin;
73:
74: tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
1.1 kristaps 75:
1.4 kristaps 76: /* Inhibit printing of spaces: we do padding ourselves. */
77:
78: tp->flags |= TERMP_NONOSPACE;
79: tp->flags |= TERMP_NOSPACE;
80:
81: /*
1.11 kristaps 82: * The first time we're invoked for a given table block,
83: * calculate the table widths and decimal positions.
1.4 kristaps 84: */
85:
1.2 kristaps 86: if (TBL_SPAN_FIRST & sp->flags) {
1.11 kristaps 87: term_flushln(tp);
88:
89: tp->tbl.len = term_tbl_len;
90: tp->tbl.slen = term_tbl_strlen;
91: tp->tbl.arg = tp;
1.4 kristaps 92:
1.11 kristaps 93: tblcalc(&tp->tbl, sp);
1.2 kristaps 94: }
1.1 kristaps 95:
1.4 kristaps 96: /* Horizontal frame at the start of boxed tables. */
97:
1.21 schwarze 98: if (TBL_SPAN_FIRST & sp->flags) {
1.25 schwarze 99: if (TBL_OPT_DBOX & sp->opts->opts)
1.21 schwarze 100: tbl_hframe(tp, sp, 1);
1.25 schwarze 101: if (TBL_OPT_DBOX & sp->opts->opts ||
102: TBL_OPT_BOX & sp->opts->opts)
1.21 schwarze 103: tbl_hframe(tp, sp, 0);
104: }
1.1 kristaps 105:
1.4 kristaps 106: /* Vertical frame at the start of each row. */
1.1 kristaps 107:
1.26 schwarze 108: if ((TBL_OPT_BOX | TBL_OPT_DBOX) & sp->opts->opts ||
109: sp->head->vert)
1.21 schwarze 110: term_word(tp, TBL_SPAN_HORIZ == sp->pos ||
1.27 schwarze 111: TBL_SPAN_DHORIZ == sp->pos ? "+" : "|");
1.1 kristaps 112:
1.4 kristaps 113: /*
114: * Now print the actual data itself depending on the span type.
115: * Spanner spans get a horizontal rule; data spanners have their
116: * data printed by matching data to header.
117: */
118:
1.1 kristaps 119: switch (sp->pos) {
1.27 schwarze 120: case TBL_SPAN_HORIZ:
1.1 kristaps 121: /* FALLTHROUGH */
1.27 schwarze 122: case TBL_SPAN_DHORIZ:
1.1 kristaps 123: tbl_hrule(tp, sp);
124: break;
1.27 schwarze 125: case TBL_SPAN_DATA:
1.4 kristaps 126: /* Iterate over template headers. */
127: dp = sp->first;
1.16 kristaps 128: spans = 0;
1.4 kristaps 129: for (hp = sp->head; hp; hp = hp->next) {
1.22 schwarze 130:
1.27 schwarze 131: /*
1.16 kristaps 132: * If the current data header is invoked during
133: * a spanner ("spans" > 0), don't emit anything
134: * at all.
135: */
1.11 kristaps 136:
1.16 kristaps 137: if (--spans >= 0)
138: continue;
139:
1.22 schwarze 140: /* Separate columns. */
1.21 schwarze 141:
1.22 schwarze 142: if (NULL != hp->prev)
143: tbl_vrule(tp, hp);
1.21 schwarze 144:
1.11 kristaps 145: col = &tp->tbl.cols[hp->ident];
1.25 schwarze 146: tbl_data(tp, sp->opts, dp, col);
1.1 kristaps 147:
1.27 schwarze 148: /*
1.16 kristaps 149: * Go to the next data cell and assign the
150: * number of subsequent spans, if applicable.
151: */
152:
153: if (dp) {
154: spans = dp->spans;
1.1 kristaps 155: dp = dp->next;
1.16 kristaps 156: }
1.1 kristaps 157: }
1.4 kristaps 158: break;
1.1 kristaps 159: }
160:
1.21 schwarze 161: /* Vertical frame at the end of each row. */
162:
1.26 schwarze 163: if ((TBL_OPT_BOX | TBL_OPT_DBOX) & sp->opts->opts ||
164: sp->layout->vert)
1.21 schwarze 165: term_word(tp, TBL_SPAN_HORIZ == sp->pos ||
1.27 schwarze 166: TBL_SPAN_DHORIZ == sp->pos ? "+" : " |");
1.1 kristaps 167: term_flushln(tp);
168:
1.4 kristaps 169: /*
170: * If we're the last row, clean up after ourselves: clear the
171: * existing table configuration and set it to NULL.
172: */
173:
1.2 kristaps 174: if (TBL_SPAN_LAST & sp->flags) {
1.25 schwarze 175: if (TBL_OPT_DBOX & sp->opts->opts ||
176: TBL_OPT_BOX & sp->opts->opts) {
1.21 schwarze 177: tbl_hframe(tp, sp, 0);
1.24 schwarze 178: tp->skipvsp = 1;
179: }
1.25 schwarze 180: if (TBL_OPT_DBOX & sp->opts->opts) {
1.21 schwarze 181: tbl_hframe(tp, sp, 1);
1.24 schwarze 182: tp->skipvsp = 2;
183: }
1.11 kristaps 184: assert(tp->tbl.cols);
185: free(tp->tbl.cols);
186: tp->tbl.cols = NULL;
1.2 kristaps 187: }
1.1 kristaps 188:
189: tp->flags &= ~TERMP_NONOSPACE;
1.11 kristaps 190: tp->rmargin = rmargin;
191: tp->maxrmargin = maxrmargin;
1.1 kristaps 192:
193: }
194:
1.21 schwarze 195: /*
196: * Horizontal rules extend across the entire table.
197: * Calculate the width by iterating over columns.
198: */
199: static size_t
200: tbl_rulewidth(struct termp *tp, const struct tbl_head *hp)
201: {
202: size_t width;
203:
204: width = tp->tbl.cols[hp->ident].width;
1.22 schwarze 205:
206: /* Account for leading blanks. */
207: if (hp->prev)
208: width += 2 - hp->vert;
209:
210: /* Account for trailing blank. */
211: width++;
212:
1.21 schwarze 213: return(width);
214: }
215:
216: /*
217: * Rules inside the table can be single or double
218: * and have crossings with vertical rules marked with pluses.
219: */
1.1 kristaps 220: static void
221: tbl_hrule(struct termp *tp, const struct tbl_span *sp)
222: {
223: const struct tbl_head *hp;
224: char c;
225:
226: c = '-';
227: if (TBL_SPAN_DHORIZ == sp->pos)
228: c = '=';
229:
1.22 schwarze 230: for (hp = sp->head; hp; hp = hp->next) {
231: if (hp->prev && hp->vert)
232: tbl_char(tp, '+', hp->vert);
233: tbl_char(tp, c, tbl_rulewidth(tp, hp));
234: }
1.1 kristaps 235: }
236:
1.21 schwarze 237: /*
238: * Rules above and below the table are always single
239: * and have an additional plus at the beginning and end.
240: * For double frames, this function is called twice,
241: * and the outer one does not have crossings.
242: */
1.1 kristaps 243: static void
1.21 schwarze 244: tbl_hframe(struct termp *tp, const struct tbl_span *sp, int outer)
1.1 kristaps 245: {
246: const struct tbl_head *hp;
247:
248: term_word(tp, "+");
1.22 schwarze 249: for (hp = sp->head; hp; hp = hp->next) {
250: if (hp->prev && hp->vert)
251: tbl_char(tp, (outer ? '-' : '+'), hp->vert);
252: tbl_char(tp, '-', tbl_rulewidth(tp, hp));
253: }
1.1 kristaps 254: term_word(tp, "+");
255: term_flushln(tp);
256: }
257:
258: static void
1.25 schwarze 259: tbl_data(struct termp *tp, const struct tbl_opts *opts,
1.27 schwarze 260: const struct tbl_dat *dp,
261: const struct roffcol *col)
1.1 kristaps 262: {
263:
264: if (NULL == dp) {
1.11 kristaps 265: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 266: return;
267: }
1.16 kristaps 268: assert(dp->layout);
1.1 kristaps 269:
270: switch (dp->pos) {
1.27 schwarze 271: case TBL_DATA_NONE:
1.11 kristaps 272: tbl_char(tp, ASCII_NBRSP, col->width);
1.10 kristaps 273: return;
1.27 schwarze 274: case TBL_DATA_HORIZ:
1.1 kristaps 275: /* FALLTHROUGH */
1.27 schwarze 276: case TBL_DATA_NHORIZ:
1.11 kristaps 277: tbl_char(tp, '-', col->width);
1.7 kristaps 278: return;
1.27 schwarze 279: case TBL_DATA_NDHORIZ:
1.7 kristaps 280: /* FALLTHROUGH */
1.27 schwarze 281: case TBL_DATA_DHORIZ:
1.11 kristaps 282: tbl_char(tp, '=', col->width);
1.1 kristaps 283: return;
284: default:
285: break;
286: }
1.27 schwarze 287:
1.16 kristaps 288: switch (dp->layout->pos) {
1.27 schwarze 289: case TBL_CELL_HORIZ:
1.11 kristaps 290: tbl_char(tp, '-', col->width);
1.7 kristaps 291: break;
1.27 schwarze 292: case TBL_CELL_DHORIZ:
1.11 kristaps 293: tbl_char(tp, '=', col->width);
1.1 kristaps 294: break;
1.27 schwarze 295: case TBL_CELL_LONG:
1.1 kristaps 296: /* FALLTHROUGH */
1.27 schwarze 297: case TBL_CELL_CENTRE:
1.1 kristaps 298: /* FALLTHROUGH */
1.27 schwarze 299: case TBL_CELL_LEFT:
1.1 kristaps 300: /* FALLTHROUGH */
1.27 schwarze 301: case TBL_CELL_RIGHT:
1.11 kristaps 302: tbl_literal(tp, dp, col);
1.1 kristaps 303: break;
1.27 schwarze 304: case TBL_CELL_NUMBER:
1.25 schwarze 305: tbl_number(tp, opts, dp, col);
1.18 kristaps 306: break;
1.27 schwarze 307: case TBL_CELL_DOWN:
1.18 kristaps 308: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 kristaps 309: break;
310: default:
311: abort();
312: /* NOTREACHED */
313: }
314: }
1.11 kristaps 315:
1.1 kristaps 316: static void
1.11 kristaps 317: tbl_vrule(struct termp *tp, const struct tbl_head *hp)
1.1 kristaps 318: {
319:
1.22 schwarze 320: tbl_char(tp, ASCII_NBRSP, 1);
321: if (0 < hp->vert)
322: tbl_char(tp, '|', hp->vert);
323: if (2 > hp->vert)
324: tbl_char(tp, ASCII_NBRSP, 2 - hp->vert);
1.1 kristaps 325: }
326:
327: static void
1.12 kristaps 328: tbl_char(struct termp *tp, char c, size_t len)
1.1 kristaps 329: {
1.12 kristaps 330: size_t i, sz;
331: char cp[2];
332:
333: cp[0] = c;
334: cp[1] = '\0';
1.1 kristaps 335:
1.3 kristaps 336: sz = term_strlen(tp, cp);
337:
338: for (i = 0; i < len; i += sz)
1.1 kristaps 339: term_word(tp, cp);
340: }
341:
342: static void
1.27 schwarze 343: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
1.11 kristaps 344: const struct roffcol *col)
1.1 kristaps 345: {
1.23 schwarze 346: struct tbl_head *hp;
347: size_t width, len, padl, padr;
348: int spans;
1.1 kristaps 349:
1.17 kristaps 350: assert(dp->string);
1.21 schwarze 351: len = term_strlen(tp, dp->string);
1.23 schwarze 352:
353: hp = dp->layout->head->next;
354: width = col->width;
355: for (spans = dp->spans; spans--; hp = hp->next)
356: width += tp->tbl.cols[hp->ident].width + 3;
357:
358: padr = width > len ? width - len : 0;
1.21 schwarze 359: padl = 0;
1.1 kristaps 360:
1.16 kristaps 361: switch (dp->layout->pos) {
1.27 schwarze 362: case TBL_CELL_LONG:
1.21 schwarze 363: padl = term_len(tp, 1);
364: padr = padr > padl ? padr - padl : 0;
1.1 kristaps 365: break;
1.27 schwarze 366: case TBL_CELL_CENTRE:
1.21 schwarze 367: if (2 > padr)
1.19 schwarze 368: break;
1.21 schwarze 369: padl = padr / 2;
1.19 schwarze 370: padr -= padl;
1.1 kristaps 371: break;
1.27 schwarze 372: case TBL_CELL_RIGHT:
1.21 schwarze 373: padl = padr;
374: padr = 0;
1.1 kristaps 375: break;
376: default:
377: break;
378: }
379:
380: tbl_char(tp, ASCII_NBRSP, padl);
1.17 kristaps 381: term_word(tp, dp->string);
1.21 schwarze 382: tbl_char(tp, ASCII_NBRSP, padr);
1.1 kristaps 383: }
384:
385: static void
1.25 schwarze 386: tbl_number(struct termp *tp, const struct tbl_opts *opts,
1.2 kristaps 387: const struct tbl_dat *dp,
1.11 kristaps 388: const struct roffcol *col)
1.1 kristaps 389: {
1.11 kristaps 390: char *cp;
391: char buf[2];
392: size_t sz, psz, ssz, d, padl;
393: int i;
1.1 kristaps 394:
395: /*
396: * See calc_data_number(). Left-pad by taking the offset of our
397: * and the maximum decimal; right-pad by the remaining amount.
398: */
399:
1.17 kristaps 400: assert(dp->string);
1.2 kristaps 401:
1.17 kristaps 402: sz = term_strlen(tp, dp->string);
1.2 kristaps 403:
1.25 schwarze 404: buf[0] = opts->decimal;
1.11 kristaps 405: buf[1] = '\0';
1.2 kristaps 406:
1.11 kristaps 407: psz = term_strlen(tp, buf);
1.10 kristaps 408:
1.25 schwarze 409: if (NULL != (cp = strrchr(dp->string, opts->decimal))) {
1.5 kristaps 410: buf[1] = '\0';
1.17 kristaps 411: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
412: buf[0] = dp->string[i];
1.5 kristaps 413: ssz += term_strlen(tp, buf);
414: }
415: d = ssz + psz;
416: } else
417: d = sz + psz;
1.2 kristaps 418:
1.11 kristaps 419: padl = col->decimal - d;
1.2 kristaps 420:
1.11 kristaps 421: tbl_char(tp, ASCII_NBRSP, padl);
1.17 kristaps 422: term_word(tp, dp->string);
1.21 schwarze 423: if (col->width > sz + padl)
424: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.2 kristaps 425: }
426:
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