Annotation of src/usr.bin/mandoc/tbl_term.c, Revision 1.8
1.8 ! schwarze 1: /* $Id: tbl_term.c,v 1.7 2011/01/16 01:11:50 schwarze Exp $ */
1.1 schwarze 2: /*
1.5 schwarze 3: * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@kth.se>
1.8 ! schwarze 4: * Copyright (c) 2011 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: */
18: #include <assert.h>
19: #include <stdio.h>
20: #include <stdlib.h>
21: #include <string.h>
22:
1.5 schwarze 23: #include "mandoc.h"
1.2 schwarze 24: #include "out.h"
25: #include "term.h"
1.1 schwarze 26:
1.6 schwarze 27: static size_t term_tbl_len(size_t, void *);
28: static size_t term_tbl_strlen(const char *, void *);
29: static void tbl_char(struct termp *, char, size_t);
30: static void tbl_data(struct termp *, const struct tbl *,
31: const struct tbl_dat *,
32: const struct roffcol *);
33: static void tbl_hframe(struct termp *, const struct tbl_span *);
34: static void tbl_literal(struct termp *, const struct tbl_dat *,
35: const struct roffcol *);
36: static void tbl_number(struct termp *, const struct tbl *,
37: const struct tbl_dat *,
38: const struct roffcol *);
39: static void tbl_hrule(struct termp *, const struct tbl_span *);
40: static void tbl_vframe(struct termp *, const struct tbl *);
41: static void tbl_vrule(struct termp *, const struct tbl_head *);
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;
62: const struct tbl_dat *dp;
63: struct roffcol *col;
1.7 schwarze 64: int spans;
1.6 schwarze 65: size_t rmargin, maxrmargin;
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:
1.5 schwarze 82: if (TBL_SPAN_FIRST & sp->flags) {
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:
1.6 schwarze 89: tblcalc(&tp->tbl, sp);
1.5 schwarze 90: }
1.2 schwarze 91:
1.5 schwarze 92: /* Horizontal frame at the start of boxed tables. */
1.1 schwarze 93:
1.5 schwarze 94: if (TBL_SPAN_FIRST & sp->flags)
95: tbl_hframe(tp, sp);
96:
97: /* Vertical frame at the start of each row. */
98:
99: tbl_vframe(tp, sp->tbl);
1.1 schwarze 100:
101: /*
1.5 schwarze 102: * Now print the actual data itself depending on the span type.
103: * Spanner spans get a horizontal rule; data spanners have their
104: * data printed by matching data to header.
1.1 schwarze 105: */
106:
1.5 schwarze 107: switch (sp->pos) {
108: case (TBL_SPAN_HORIZ):
109: /* FALLTHROUGH */
110: case (TBL_SPAN_DHORIZ):
111: tbl_hrule(tp, sp);
112: break;
113: case (TBL_SPAN_DATA):
114: /* Iterate over template headers. */
115: dp = sp->first;
1.7 schwarze 116: spans = 0;
1.5 schwarze 117: for (hp = sp->head; hp; hp = hp->next) {
1.7 schwarze 118: /*
119: * If the current data header is invoked during
120: * a spanner ("spans" > 0), don't emit anything
121: * at all.
122: */
1.5 schwarze 123: switch (hp->pos) {
1.1 schwarze 124: case (TBL_HEAD_VERT):
125: /* FALLTHROUGH */
126: case (TBL_HEAD_DVERT):
1.7 schwarze 127: if (spans <= 0)
128: tbl_vrule(tp, hp);
1.5 schwarze 129: continue;
1.1 schwarze 130: case (TBL_HEAD_DATA):
131: break;
132: }
1.6 schwarze 133:
1.7 schwarze 134: if (--spans >= 0)
135: continue;
136:
1.6 schwarze 137: col = &tp->tbl.cols[hp->ident];
138: tbl_data(tp, sp->tbl, dp, col);
1.5 schwarze 139:
1.7 schwarze 140: /*
141: * Go to the next data cell and assign the
142: * number of subsequent spans, if applicable.
143: */
144:
145: if (dp) {
146: spans = dp->spans;
1.5 schwarze 147: dp = dp->next;
1.7 schwarze 148: }
1.1 schwarze 149: }
1.5 schwarze 150: break;
1.1 schwarze 151: }
152:
1.5 schwarze 153: tbl_vframe(tp, sp->tbl);
154: term_flushln(tp);
1.1 schwarze 155:
1.5 schwarze 156: /*
157: * If we're the last row, clean up after ourselves: clear the
158: * existing table configuration and set it to NULL.
159: */
1.1 schwarze 160:
1.5 schwarze 161: if (TBL_SPAN_LAST & sp->flags) {
162: tbl_hframe(tp, sp);
1.6 schwarze 163: assert(tp->tbl.cols);
164: free(tp->tbl.cols);
165: tp->tbl.cols = NULL;
1.1 schwarze 166: }
167:
1.5 schwarze 168: tp->flags &= ~TERMP_NONOSPACE;
1.6 schwarze 169: tp->rmargin = rmargin;
170: tp->maxrmargin = maxrmargin;
1.1 schwarze 171:
172: }
173:
174: static void
1.5 schwarze 175: tbl_hrule(struct termp *tp, const struct tbl_span *sp)
1.1 schwarze 176: {
1.5 schwarze 177: const struct tbl_head *hp;
178: char c;
1.6 schwarze 179: size_t width;
1.1 schwarze 180:
181: /*
182: * An hrule extends across the entire table and is demarked by a
183: * standalone `_' or whatnot in lieu of a table row. Spanning
184: * headers are marked by a `+', as are table boundaries.
185: */
186:
187: c = '-';
1.5 schwarze 188: if (TBL_SPAN_DHORIZ == sp->pos)
1.1 schwarze 189: c = '=';
190:
191: /* FIXME: don't use `+' between data and a spanner! */
192:
1.5 schwarze 193: for (hp = sp->head; hp; hp = hp->next) {
1.6 schwarze 194: width = tp->tbl.cols[hp->ident].width;
1.5 schwarze 195: switch (hp->pos) {
1.1 schwarze 196: case (TBL_HEAD_DATA):
1.8 ! schwarze 197: if (hp->next)
! 198: width += 2;
1.5 schwarze 199: tbl_char(tp, c, width);
1.1 schwarze 200: break;
201: case (TBL_HEAD_DVERT):
1.5 schwarze 202: tbl_char(tp, '+', width);
1.1 schwarze 203: /* FALLTHROUGH */
204: case (TBL_HEAD_VERT):
1.5 schwarze 205: tbl_char(tp, '+', width);
1.1 schwarze 206: break;
207: default:
208: abort();
209: /* NOTREACHED */
210: }
211: }
212: }
213:
214: static void
1.5 schwarze 215: tbl_hframe(struct termp *tp, const struct tbl_span *sp)
1.1 schwarze 216: {
1.5 schwarze 217: const struct tbl_head *hp;
1.6 schwarze 218: size_t width;
1.1 schwarze 219:
1.5 schwarze 220: if ( ! (TBL_OPT_BOX & sp->tbl->opts ||
221: TBL_OPT_DBOX & sp->tbl->opts))
1.1 schwarze 222: return;
223:
224: /*
225: * Print out the horizontal part of a frame or double frame. A
226: * double frame has an unbroken `-' outer line the width of the
227: * table, bordered by `+'. The frame (or inner frame, in the
228: * case of the double frame) is a `-' bordered by `+' and broken
229: * by `+' whenever a span is encountered.
230: */
231:
1.5 schwarze 232: if (TBL_OPT_DBOX & sp->tbl->opts) {
233: term_word(tp, "+");
234: for (hp = sp->head; hp; hp = hp->next) {
1.6 schwarze 235: width = tp->tbl.cols[hp->ident].width;
1.5 schwarze 236: tbl_char(tp, '-', width);
237: }
238: term_word(tp, "+");
239: term_flushln(tp);
1.1 schwarze 240: }
241:
1.5 schwarze 242: term_word(tp, "+");
243: for (hp = sp->head; hp; hp = hp->next) {
1.6 schwarze 244: width = tp->tbl.cols[hp->ident].width;
1.5 schwarze 245: switch (hp->pos) {
1.1 schwarze 246: case (TBL_HEAD_DATA):
1.5 schwarze 247: tbl_char(tp, '-', width);
1.1 schwarze 248: break;
249: default:
1.5 schwarze 250: tbl_char(tp, '+', width);
1.1 schwarze 251: break;
252: }
253: }
1.5 schwarze 254: term_word(tp, "+");
255: term_flushln(tp);
1.1 schwarze 256: }
257:
258: static void
1.5 schwarze 259: tbl_data(struct termp *tp, const struct tbl *tbl,
260: const struct tbl_dat *dp,
1.6 schwarze 261: const struct roffcol *col)
1.1 schwarze 262: {
263:
1.5 schwarze 264: if (NULL == dp) {
1.6 schwarze 265: tbl_char(tp, ASCII_NBRSP, col->width);
1.1 schwarze 266: return;
1.5 schwarze 267: }
1.7 schwarze 268: assert(dp->layout);
1.1 schwarze 269:
1.5 schwarze 270: switch (dp->pos) {
271: case (TBL_DATA_NONE):
1.6 schwarze 272: tbl_char(tp, ASCII_NBRSP, col->width);
1.5 schwarze 273: return;
274: case (TBL_DATA_HORIZ):
275: /* FALLTHROUGH */
276: case (TBL_DATA_NHORIZ):
1.6 schwarze 277: tbl_char(tp, '-', col->width);
1.5 schwarze 278: return;
279: case (TBL_DATA_NDHORIZ):
1.1 schwarze 280: /* FALLTHROUGH */
1.5 schwarze 281: case (TBL_DATA_DHORIZ):
1.6 schwarze 282: tbl_char(tp, '=', col->width);
1.5 schwarze 283: return;
1.1 schwarze 284: default:
285: break;
286: }
1.5 schwarze 287:
1.7 schwarze 288: switch (dp->layout->pos) {
1.1 schwarze 289: case (TBL_CELL_HORIZ):
1.6 schwarze 290: tbl_char(tp, '-', col->width);
1.5 schwarze 291: break;
1.1 schwarze 292: case (TBL_CELL_DHORIZ):
1.6 schwarze 293: tbl_char(tp, '=', col->width);
1.1 schwarze 294: break;
295: case (TBL_CELL_LONG):
296: /* FALLTHROUGH */
297: case (TBL_CELL_CENTRE):
298: /* FALLTHROUGH */
299: case (TBL_CELL_LEFT):
300: /* FALLTHROUGH */
301: case (TBL_CELL_RIGHT):
1.6 schwarze 302: tbl_literal(tp, dp, col);
1.1 schwarze 303: break;
304: case (TBL_CELL_NUMBER):
1.6 schwarze 305: tbl_number(tp, tbl, dp, col);
1.4 schwarze 306: break;
1.7 schwarze 307: case (TBL_CELL_DOWN):
308: tbl_char(tp, ASCII_NBRSP, col->width);
309: break;
1.1 schwarze 310: default:
311: abort();
312: /* NOTREACHED */
313: }
314: }
1.6 schwarze 315:
1.1 schwarze 316: static void
1.6 schwarze 317: tbl_vrule(struct termp *tp, const struct tbl_head *hp)
1.1 schwarze 318: {
319:
1.5 schwarze 320: switch (hp->pos) {
321: case (TBL_HEAD_VERT):
322: term_word(tp, "|");
323: break;
324: case (TBL_HEAD_DVERT):
325: term_word(tp, "||");
326: break;
327: default:
328: break;
329: }
1.1 schwarze 330: }
331:
332: static void
1.5 schwarze 333: tbl_vframe(struct termp *tp, const struct tbl *tbl)
1.1 schwarze 334: {
335:
1.5 schwarze 336: if (TBL_OPT_BOX & tbl->opts || TBL_OPT_DBOX & tbl->opts)
337: term_word(tp, "|");
338: }
1.1 schwarze 339:
1.6 schwarze 340: static void
341: tbl_char(struct termp *tp, char c, size_t len)
1.5 schwarze 342: {
1.6 schwarze 343: size_t i, sz;
1.5 schwarze 344: char cp[2];
1.1 schwarze 345:
1.5 schwarze 346: cp[0] = c;
347: cp[1] = '\0';
1.1 schwarze 348:
1.5 schwarze 349: sz = term_strlen(tp, cp);
1.1 schwarze 350:
1.5 schwarze 351: for (i = 0; i < len; i += sz)
352: term_word(tp, cp);
1.1 schwarze 353: }
354:
355: static void
1.6 schwarze 356: tbl_literal(struct termp *tp, const struct tbl_dat *dp,
357: const struct roffcol *col)
1.1 schwarze 358: {
1.6 schwarze 359: size_t padl, padr, ssz;
1.1 schwarze 360:
361: padl = padr = 0;
362:
1.7 schwarze 363: assert(dp->string);
1.6 schwarze 364:
1.5 schwarze 365: ssz = term_len(tp, 1);
366:
1.7 schwarze 367: switch (dp->layout->pos) {
1.1 schwarze 368: case (TBL_CELL_LONG):
1.5 schwarze 369: padl = ssz;
1.7 schwarze 370: padr = col->width - term_strlen(tp, dp->string) - ssz;
1.1 schwarze 371: break;
372: case (TBL_CELL_CENTRE):
1.8 ! schwarze 373: padr = col->width - term_strlen(tp, dp->string);
! 374: if (3 > padr)
! 375: break;
! 376: padl = (padr - 1) / 2;
! 377: padr -= padl;
1.1 schwarze 378: break;
379: case (TBL_CELL_RIGHT):
1.7 schwarze 380: padl = col->width - term_strlen(tp, dp->string);
1.1 schwarze 381: break;
382: default:
1.7 schwarze 383: padr = col->width - term_strlen(tp, dp->string);
1.1 schwarze 384: break;
385: }
386:
1.5 schwarze 387: tbl_char(tp, ASCII_NBRSP, padl);
1.7 schwarze 388: term_word(tp, dp->string);
1.8 ! schwarze 389: tbl_char(tp, ASCII_NBRSP, padr + 2);
1.1 schwarze 390: }
391:
1.5 schwarze 392: static void
1.6 schwarze 393: tbl_number(struct termp *tp, const struct tbl *tbl,
1.5 schwarze 394: const struct tbl_dat *dp,
1.6 schwarze 395: const struct roffcol *col)
1.5 schwarze 396: {
1.6 schwarze 397: char *cp;
398: char buf[2];
399: size_t sz, psz, ssz, d, padl;
400: int i;
1.5 schwarze 401:
402: /*
403: * See calc_data_number(). Left-pad by taking the offset of our
404: * and the maximum decimal; right-pad by the remaining amount.
405: */
406:
1.7 schwarze 407: assert(dp->string);
1.5 schwarze 408:
1.7 schwarze 409: sz = term_strlen(tp, dp->string);
1.5 schwarze 410:
1.6 schwarze 411: buf[0] = tbl->decimal;
412: buf[1] = '\0';
1.5 schwarze 413:
1.6 schwarze 414: psz = term_strlen(tp, buf);
1.5 schwarze 415:
1.7 schwarze 416: if (NULL != (cp = strrchr(dp->string, tbl->decimal))) {
1.5 schwarze 417: buf[1] = '\0';
1.7 schwarze 418: for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
419: buf[0] = dp->string[i];
1.5 schwarze 420: ssz += term_strlen(tp, buf);
421: }
422: d = ssz + psz;
423: } else
424: d = sz + psz;
425:
426: sz += term_len(tp, 2);
1.6 schwarze 427: d += term_len(tp, 1);
1.5 schwarze 428:
1.6 schwarze 429: padl = col->decimal - d;
1.5 schwarze 430:
1.6 schwarze 431: tbl_char(tp, ASCII_NBRSP, padl);
1.7 schwarze 432: term_word(tp, dp->string);
1.6 schwarze 433: tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
1.5 schwarze 434: }
1.1 schwarze 435:
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