1 /* $Id: tbl_term.c,v 1.13 2011/01/07 14:59:52 kristaps Exp $ */
3 * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
30 /* FIXME: `n' modifier doesn't always do the right thing. */
31 /* FIXME: `n' modifier doesn't use the cell-spacing buffer. */
33 static size_t term_tbl_len(size_t, void *);
34 static size_t term_tbl_strlen(const char *, void *);
35 static void tbl_char(struct termp *, char, size_t);
36 static void tbl_data(struct termp *, const struct tbl *,
37 const struct tbl_dat *,
38 const struct roffcol *);
39 static void tbl_hframe(struct termp *, const struct tbl_span *);
40 static void tbl_literal(struct termp *, const struct tbl_dat *,
41 const struct roffcol *);
42 static void tbl_number(struct termp *, const struct tbl *,
43 const struct tbl_dat *,
44 const struct roffcol *);
45 static void tbl_hrule(struct termp *, const struct tbl_span *);
46 static void tbl_vframe(struct termp *, const struct tbl *);
47 static void tbl_vrule(struct termp *, const struct tbl_head *);
51 term_tbl_strlen(const char *p, void *arg)
54 return(term_strlen((const struct termp *)arg, p));
58 term_tbl_len(size_t sz, void *arg)
61 return(term_len((const struct termp *)arg, sz));
65 term_tbl(struct termp *tp, const struct tbl_span *sp)
67 const struct tbl_head *hp;
68 const struct tbl_dat *dp;
70 size_t rmargin, maxrmargin;
72 rmargin = tp->rmargin;
73 maxrmargin = tp->maxrmargin;
75 tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
77 /* Inhibit printing of spaces: we do padding ourselves. */
79 tp->flags |= TERMP_NONOSPACE;
80 tp->flags |= TERMP_NOSPACE;
83 * The first time we're invoked for a given table block,
84 * calculate the table widths and decimal positions.
87 if (TBL_SPAN_FIRST & sp->flags) {
90 tp->tbl.len = term_tbl_len;
91 tp->tbl.slen = term_tbl_strlen;
94 tblcalc(&tp->tbl, sp);
97 /* Horizontal frame at the start of boxed tables. */
99 if (TBL_SPAN_FIRST & sp->flags)
102 /* Vertical frame at the start of each row. */
104 tbl_vframe(tp, sp->tbl);
107 * Now print the actual data itself depending on the span type.
108 * Spanner spans get a horizontal rule; data spanners have their
109 * data printed by matching data to header.
113 case (TBL_SPAN_HORIZ):
115 case (TBL_SPAN_DHORIZ):
118 case (TBL_SPAN_DATA):
119 /* Iterate over template headers. */
121 for (hp = sp->head; hp; hp = hp->next) {
123 case (TBL_HEAD_VERT):
125 case (TBL_HEAD_DVERT):
128 case (TBL_HEAD_DATA):
132 col = &tp->tbl.cols[hp->ident];
133 tbl_data(tp, sp->tbl, dp, col);
135 /* Go to the next data cell. */
142 tbl_vframe(tp, sp->tbl);
146 * If we're the last row, clean up after ourselves: clear the
147 * existing table configuration and set it to NULL.
150 if (TBL_SPAN_LAST & sp->flags) {
152 assert(tp->tbl.cols);
157 tp->flags &= ~TERMP_NONOSPACE;
158 tp->rmargin = rmargin;
159 tp->maxrmargin = maxrmargin;
164 tbl_hrule(struct termp *tp, const struct tbl_span *sp)
166 const struct tbl_head *hp;
171 * An hrule extends across the entire table and is demarked by a
172 * standalone `_' or whatnot in lieu of a table row. Spanning
173 * headers are marked by a `+', as are table boundaries.
177 if (TBL_SPAN_DHORIZ == sp->pos)
180 /* FIXME: don't use `+' between data and a spanner! */
182 for (hp = sp->head; hp; hp = hp->next) {
183 width = tp->tbl.cols[hp->ident].width;
185 case (TBL_HEAD_DATA):
186 tbl_char(tp, c, width);
188 case (TBL_HEAD_DVERT):
189 tbl_char(tp, '+', width);
191 case (TBL_HEAD_VERT):
192 tbl_char(tp, '+', width);
202 tbl_hframe(struct termp *tp, const struct tbl_span *sp)
204 const struct tbl_head *hp;
207 if ( ! (TBL_OPT_BOX & sp->tbl->opts ||
208 TBL_OPT_DBOX & sp->tbl->opts))
212 * Print out the horizontal part of a frame or double frame. A
213 * double frame has an unbroken `-' outer line the width of the
214 * table, bordered by `+'. The frame (or inner frame, in the
215 * case of the double frame) is a `-' bordered by `+' and broken
216 * by `+' whenever a span is encountered.
219 if (TBL_OPT_DBOX & sp->tbl->opts) {
221 for (hp = sp->head; hp; hp = hp->next) {
222 width = tp->tbl.cols[hp->ident].width;
223 tbl_char(tp, '-', width);
230 for (hp = sp->head; hp; hp = hp->next) {
231 width = tp->tbl.cols[hp->ident].width;
233 case (TBL_HEAD_DATA):
234 tbl_char(tp, '-', width);
237 tbl_char(tp, '+', width);
246 tbl_data(struct termp *tp, const struct tbl *tbl,
247 const struct tbl_dat *dp,
248 const struct roffcol *col)
253 tbl_char(tp, ASCII_NBRSP, col->width);
258 case (TBL_DATA_NONE):
259 tbl_char(tp, ASCII_NBRSP, col->width);
261 case (TBL_DATA_HORIZ):
263 case (TBL_DATA_NHORIZ):
264 tbl_char(tp, '-', col->width);
266 case (TBL_DATA_NDHORIZ):
268 case (TBL_DATA_DHORIZ):
269 tbl_char(tp, '=', col->width);
275 pos = dp && dp->layout ? dp->layout->pos : TBL_CELL_LEFT;
278 case (TBL_CELL_HORIZ):
279 tbl_char(tp, '-', col->width);
281 case (TBL_CELL_DHORIZ):
282 tbl_char(tp, '=', col->width);
284 case (TBL_CELL_LONG):
286 case (TBL_CELL_CENTRE):
288 case (TBL_CELL_LEFT):
290 case (TBL_CELL_RIGHT):
291 tbl_literal(tp, dp, col);
293 case (TBL_CELL_NUMBER):
294 tbl_number(tp, tbl, dp, col);
303 tbl_vrule(struct termp *tp, const struct tbl_head *hp)
307 case (TBL_HEAD_VERT):
310 case (TBL_HEAD_DVERT):
319 tbl_vframe(struct termp *tp, const struct tbl *tbl)
322 if (TBL_OPT_BOX & tbl->opts || TBL_OPT_DBOX & tbl->opts)
327 tbl_char(struct termp *tp, char c, size_t len)
335 sz = term_strlen(tp, cp);
337 for (i = 0; i < len; i += sz)
342 tbl_literal(struct termp *tp, const struct tbl_dat *dp,
343 const struct roffcol *col)
345 size_t padl, padr, ssz;
351 pos = dp && dp->layout ? dp->layout->pos : TBL_CELL_LEFT;
352 str = dp && dp->string ? dp->string : "";
354 ssz = term_len(tp, 1);
357 case (TBL_CELL_LONG):
359 padr = col->width - term_strlen(tp, str) - ssz;
361 case (TBL_CELL_CENTRE):
362 padl = col->width - term_strlen(tp, str);
368 case (TBL_CELL_RIGHT):
369 padl = col->width - term_strlen(tp, str);
372 padr = col->width - term_strlen(tp, str);
376 tbl_char(tp, ASCII_NBRSP, padl);
378 tbl_char(tp, ASCII_NBRSP, padr);
382 tbl_number(struct termp *tp, const struct tbl *tbl,
383 const struct tbl_dat *dp,
384 const struct roffcol *col)
389 size_t sz, psz, ssz, d, padl;
393 * See calc_data_number(). Left-pad by taking the offset of our
394 * and the maximum decimal; right-pad by the remaining amount.
397 str = dp && dp->string ? dp->string : "";
399 sz = term_strlen(tp, str);
401 buf[0] = tbl->decimal;
404 psz = term_strlen(tp, buf);
406 if (NULL != (cp = strchr(str, tbl->decimal))) {
408 for (ssz = 0, i = 0; cp != &str[i]; i++) {
410 ssz += term_strlen(tp, buf);
416 sz += term_len(tp, 2);
417 d += term_len(tp, 1);
419 padl = col->decimal - d;
421 tbl_char(tp, ASCII_NBRSP, padl);
423 tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);