1 /* $Id: tbl_term.c,v 1.19 2011/01/25 12:07:30 schwarze Exp $ */
3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@kth.se>
4 * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
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.
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.
31 static size_t term_tbl_len(size_t, void *);
32 static size_t term_tbl_strlen(const char *, void *);
33 static void tbl_char(struct termp *, char, size_t);
34 static void tbl_data(struct termp *, const struct tbl *,
35 const struct tbl_dat *,
36 const struct roffcol *);
37 static void tbl_hframe(struct termp *, const struct tbl_span *);
38 static void tbl_literal(struct termp *, const struct tbl_dat *,
39 const struct roffcol *);
40 static void tbl_number(struct termp *, const struct tbl *,
41 const struct tbl_dat *,
42 const struct roffcol *);
43 static void tbl_hrule(struct termp *, const struct tbl_span *);
44 static void tbl_vframe(struct termp *, const struct tbl *);
45 static void tbl_vrule(struct termp *, const struct tbl_head *);
49 term_tbl_strlen(const char *p, void *arg)
52 return(term_strlen((const struct termp *)arg, p));
56 term_tbl_len(size_t sz, void *arg)
59 return(term_len((const struct termp *)arg, sz));
63 term_tbl(struct termp *tp, const struct tbl_span *sp)
65 const struct tbl_head *hp;
66 const struct tbl_dat *dp;
69 size_t rmargin, maxrmargin;
71 rmargin = tp->rmargin;
72 maxrmargin = tp->maxrmargin;
74 tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
76 /* Inhibit printing of spaces: we do padding ourselves. */
78 tp->flags |= TERMP_NONOSPACE;
79 tp->flags |= TERMP_NOSPACE;
82 * The first time we're invoked for a given table block,
83 * calculate the table widths and decimal positions.
86 if (TBL_SPAN_FIRST & sp->flags) {
89 tp->tbl.len = term_tbl_len;
90 tp->tbl.slen = term_tbl_strlen;
93 tblcalc(&tp->tbl, sp);
96 /* Horizontal frame at the start of boxed tables. */
98 if (TBL_SPAN_FIRST & sp->flags)
101 /* Vertical frame at the start of each row. */
103 tbl_vframe(tp, sp->tbl);
106 * Now print the actual data itself depending on the span type.
107 * Spanner spans get a horizontal rule; data spanners have their
108 * data printed by matching data to header.
112 case (TBL_SPAN_HORIZ):
114 case (TBL_SPAN_DHORIZ):
117 case (TBL_SPAN_DATA):
118 /* Iterate over template headers. */
121 for (hp = sp->head; hp; hp = hp->next) {
123 * If the current data header is invoked during
124 * a spanner ("spans" > 0), don't emit anything
128 case (TBL_HEAD_VERT):
130 case (TBL_HEAD_DVERT):
134 case (TBL_HEAD_DATA):
141 col = &tp->tbl.cols[hp->ident];
142 tbl_data(tp, sp->tbl, dp, col);
145 * Go to the next data cell and assign the
146 * number of subsequent spans, if applicable.
157 tbl_vframe(tp, sp->tbl);
161 * If we're the last row, clean up after ourselves: clear the
162 * existing table configuration and set it to NULL.
165 if (TBL_SPAN_LAST & sp->flags) {
167 assert(tp->tbl.cols);
172 tp->flags &= ~TERMP_NONOSPACE;
173 tp->rmargin = rmargin;
174 tp->maxrmargin = maxrmargin;
179 tbl_hrule(struct termp *tp, const struct tbl_span *sp)
181 const struct tbl_head *hp;
186 * An hrule extends across the entire table and is demarked by a
187 * standalone `_' or whatnot in lieu of a table row. Spanning
188 * headers are marked by a `+', as are table boundaries.
192 if (TBL_SPAN_DHORIZ == sp->pos)
195 /* FIXME: don't use `+' between data and a spanner! */
197 for (hp = sp->head; hp; hp = hp->next) {
198 width = tp->tbl.cols[hp->ident].width;
200 case (TBL_HEAD_DATA):
203 tbl_char(tp, c, width);
205 case (TBL_HEAD_DVERT):
206 tbl_char(tp, '+', width);
208 case (TBL_HEAD_VERT):
209 tbl_char(tp, '+', width);
219 tbl_hframe(struct termp *tp, const struct tbl_span *sp)
221 const struct tbl_head *hp;
224 if ( ! (TBL_OPT_BOX & sp->tbl->opts ||
225 TBL_OPT_DBOX & sp->tbl->opts))
229 * Print out the horizontal part of a frame or double frame. A
230 * double frame has an unbroken `-' outer line the width of the
231 * table, bordered by `+'. The frame (or inner frame, in the
232 * case of the double frame) is a `-' bordered by `+' and broken
233 * by `+' whenever a span is encountered.
236 if (TBL_OPT_DBOX & sp->tbl->opts) {
238 for (hp = sp->head; hp; hp = hp->next) {
239 width = tp->tbl.cols[hp->ident].width;
240 tbl_char(tp, '-', width);
247 for (hp = sp->head; hp; hp = hp->next) {
248 width = tp->tbl.cols[hp->ident].width;
250 case (TBL_HEAD_DATA):
251 tbl_char(tp, '-', width);
254 tbl_char(tp, '+', width);
263 tbl_data(struct termp *tp, const struct tbl *tbl,
264 const struct tbl_dat *dp,
265 const struct roffcol *col)
269 tbl_char(tp, ASCII_NBRSP, col->width);
275 case (TBL_DATA_NONE):
276 tbl_char(tp, ASCII_NBRSP, col->width);
278 case (TBL_DATA_HORIZ):
280 case (TBL_DATA_NHORIZ):
281 tbl_char(tp, '-', col->width);
283 case (TBL_DATA_NDHORIZ):
285 case (TBL_DATA_DHORIZ):
286 tbl_char(tp, '=', col->width);
292 switch (dp->layout->pos) {
293 case (TBL_CELL_HORIZ):
294 tbl_char(tp, '-', col->width);
296 case (TBL_CELL_DHORIZ):
297 tbl_char(tp, '=', col->width);
299 case (TBL_CELL_LONG):
301 case (TBL_CELL_CENTRE):
303 case (TBL_CELL_LEFT):
305 case (TBL_CELL_RIGHT):
306 tbl_literal(tp, dp, col);
308 case (TBL_CELL_NUMBER):
309 tbl_number(tp, tbl, dp, col);
311 case (TBL_CELL_DOWN):
312 tbl_char(tp, ASCII_NBRSP, col->width);
321 tbl_vrule(struct termp *tp, const struct tbl_head *hp)
325 case (TBL_HEAD_VERT):
328 case (TBL_HEAD_DVERT):
337 tbl_vframe(struct termp *tp, const struct tbl *tbl)
340 if (TBL_OPT_BOX & tbl->opts || TBL_OPT_DBOX & tbl->opts)
345 tbl_char(struct termp *tp, char c, size_t len)
353 sz = term_strlen(tp, cp);
355 for (i = 0; i < len; i += sz)
360 tbl_literal(struct termp *tp, const struct tbl_dat *dp,
361 const struct roffcol *col)
363 size_t padl, padr, ssz;
369 ssz = term_len(tp, 1);
371 switch (dp->layout->pos) {
372 case (TBL_CELL_LONG):
374 padr = col->width - term_strlen(tp, dp->string) - ssz;
376 case (TBL_CELL_CENTRE):
377 padr = col->width - term_strlen(tp, dp->string);
380 padl = (padr - 1) / 2;
383 case (TBL_CELL_RIGHT):
384 padl = col->width - term_strlen(tp, dp->string);
387 padr = col->width - term_strlen(tp, dp->string);
391 tbl_char(tp, ASCII_NBRSP, padl);
392 term_word(tp, dp->string);
393 tbl_char(tp, ASCII_NBRSP, padr + 2);
397 tbl_number(struct termp *tp, const struct tbl *tbl,
398 const struct tbl_dat *dp,
399 const struct roffcol *col)
403 size_t sz, psz, ssz, d, padl;
407 * See calc_data_number(). Left-pad by taking the offset of our
408 * and the maximum decimal; right-pad by the remaining amount.
413 sz = term_strlen(tp, dp->string);
415 buf[0] = tbl->decimal;
418 psz = term_strlen(tp, buf);
420 if (NULL != (cp = strrchr(dp->string, tbl->decimal))) {
422 for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
423 buf[0] = dp->string[i];
424 ssz += term_strlen(tp, buf);
430 sz += term_len(tp, 2);
431 d += term_len(tp, 1);
433 padl = col->decimal - d;
435 tbl_char(tp, ASCII_NBRSP, padl);
436 term_word(tp, dp->string);
437 tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);