1 /* $Id: tbl_term.c,v 1.25 2013/05/31 21:37:17 schwarze Exp $ */
3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2011, 2012 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_opts *,
35 const struct tbl_dat *,
36 const struct roffcol *);
37 static size_t tbl_rulewidth(struct termp *, const struct tbl_head *);
38 static void tbl_hframe(struct termp *, const struct tbl_span *, int);
39 static void tbl_literal(struct termp *, const struct tbl_dat *,
40 const struct roffcol *);
41 static void tbl_number(struct termp *, const struct tbl_opts *,
42 const struct tbl_dat *,
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 *);
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) {
99 if (TBL_OPT_DBOX & sp->opts->opts)
100 tbl_hframe(tp, sp, 1);
101 if (TBL_OPT_DBOX & sp->opts->opts ||
102 TBL_OPT_BOX & sp->opts->opts)
103 tbl_hframe(tp, sp, 0);
106 /* Vertical frame at the start of each row. */
108 if (TBL_OPT_BOX & sp->opts->opts || TBL_OPT_DBOX & sp->opts->opts)
109 term_word(tp, TBL_SPAN_HORIZ == sp->pos ||
110 TBL_SPAN_DHORIZ == sp->pos ? "+" : "|");
113 * Now print the actual data itself depending on the span type.
114 * Spanner spans get a horizontal rule; data spanners have their
115 * data printed by matching data to header.
119 case (TBL_SPAN_HORIZ):
121 case (TBL_SPAN_DHORIZ):
124 case (TBL_SPAN_DATA):
125 /* Iterate over template headers. */
128 for (hp = sp->head; hp; hp = hp->next) {
131 * If the current data header is invoked during
132 * a spanner ("spans" > 0), don't emit anything
139 /* Separate columns. */
141 if (NULL != hp->prev)
144 col = &tp->tbl.cols[hp->ident];
145 tbl_data(tp, sp->opts, dp, col);
148 * Go to the next data cell and assign the
149 * number of subsequent spans, if applicable.
160 /* Vertical frame at the end of each row. */
162 if (TBL_OPT_BOX & sp->opts->opts || TBL_OPT_DBOX & sp->opts->opts)
163 term_word(tp, TBL_SPAN_HORIZ == sp->pos ||
164 TBL_SPAN_DHORIZ == sp->pos ? "+" : " |");
168 * If we're the last row, clean up after ourselves: clear the
169 * existing table configuration and set it to NULL.
172 if (TBL_SPAN_LAST & sp->flags) {
173 if (TBL_OPT_DBOX & sp->opts->opts ||
174 TBL_OPT_BOX & sp->opts->opts) {
175 tbl_hframe(tp, sp, 0);
178 if (TBL_OPT_DBOX & sp->opts->opts) {
179 tbl_hframe(tp, sp, 1);
182 assert(tp->tbl.cols);
187 tp->flags &= ~TERMP_NONOSPACE;
188 tp->rmargin = rmargin;
189 tp->maxrmargin = maxrmargin;
194 * Horizontal rules extend across the entire table.
195 * Calculate the width by iterating over columns.
198 tbl_rulewidth(struct termp *tp, const struct tbl_head *hp)
202 width = tp->tbl.cols[hp->ident].width;
204 /* Account for leading blanks. */
206 width += 2 - hp->vert;
208 /* Account for trailing blank. */
215 * Rules inside the table can be single or double
216 * and have crossings with vertical rules marked with pluses.
219 tbl_hrule(struct termp *tp, const struct tbl_span *sp)
221 const struct tbl_head *hp;
225 if (TBL_SPAN_DHORIZ == sp->pos)
228 for (hp = sp->head; hp; hp = hp->next) {
229 if (hp->prev && hp->vert)
230 tbl_char(tp, '+', hp->vert);
231 tbl_char(tp, c, tbl_rulewidth(tp, hp));
236 * Rules above and below the table are always single
237 * and have an additional plus at the beginning and end.
238 * For double frames, this function is called twice,
239 * and the outer one does not have crossings.
242 tbl_hframe(struct termp *tp, const struct tbl_span *sp, int outer)
244 const struct tbl_head *hp;
247 for (hp = sp->head; hp; hp = hp->next) {
248 if (hp->prev && hp->vert)
249 tbl_char(tp, (outer ? '-' : '+'), hp->vert);
250 tbl_char(tp, '-', tbl_rulewidth(tp, hp));
257 tbl_data(struct termp *tp, const struct tbl_opts *opts,
258 const struct tbl_dat *dp,
259 const struct roffcol *col)
263 tbl_char(tp, ASCII_NBRSP, col->width);
269 case (TBL_DATA_NONE):
270 tbl_char(tp, ASCII_NBRSP, col->width);
272 case (TBL_DATA_HORIZ):
274 case (TBL_DATA_NHORIZ):
275 tbl_char(tp, '-', col->width);
277 case (TBL_DATA_NDHORIZ):
279 case (TBL_DATA_DHORIZ):
280 tbl_char(tp, '=', col->width);
286 switch (dp->layout->pos) {
287 case (TBL_CELL_HORIZ):
288 tbl_char(tp, '-', col->width);
290 case (TBL_CELL_DHORIZ):
291 tbl_char(tp, '=', col->width);
293 case (TBL_CELL_LONG):
295 case (TBL_CELL_CENTRE):
297 case (TBL_CELL_LEFT):
299 case (TBL_CELL_RIGHT):
300 tbl_literal(tp, dp, col);
302 case (TBL_CELL_NUMBER):
303 tbl_number(tp, opts, dp, col);
305 case (TBL_CELL_DOWN):
306 tbl_char(tp, ASCII_NBRSP, col->width);
315 tbl_vrule(struct termp *tp, const struct tbl_head *hp)
318 tbl_char(tp, ASCII_NBRSP, 1);
320 tbl_char(tp, '|', hp->vert);
322 tbl_char(tp, ASCII_NBRSP, 2 - hp->vert);
326 tbl_char(struct termp *tp, char c, size_t len)
334 sz = term_strlen(tp, cp);
336 for (i = 0; i < len; i += sz)
341 tbl_literal(struct termp *tp, const struct tbl_dat *dp,
342 const struct roffcol *col)
345 size_t width, len, padl, padr;
349 len = term_strlen(tp, dp->string);
351 hp = dp->layout->head->next;
353 for (spans = dp->spans; spans--; hp = hp->next)
354 width += tp->tbl.cols[hp->ident].width + 3;
356 padr = width > len ? width - len : 0;
359 switch (dp->layout->pos) {
360 case (TBL_CELL_LONG):
361 padl = term_len(tp, 1);
362 padr = padr > padl ? padr - padl : 0;
364 case (TBL_CELL_CENTRE):
370 case (TBL_CELL_RIGHT):
378 tbl_char(tp, ASCII_NBRSP, padl);
379 term_word(tp, dp->string);
380 tbl_char(tp, ASCII_NBRSP, padr);
384 tbl_number(struct termp *tp, const struct tbl_opts *opts,
385 const struct tbl_dat *dp,
386 const struct roffcol *col)
390 size_t sz, psz, ssz, d, padl;
394 * See calc_data_number(). Left-pad by taking the offset of our
395 * and the maximum decimal; right-pad by the remaining amount.
400 sz = term_strlen(tp, dp->string);
402 buf[0] = opts->decimal;
405 psz = term_strlen(tp, buf);
407 if (NULL != (cp = strrchr(dp->string, opts->decimal))) {
409 for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
410 buf[0] = dp->string[i];
411 ssz += term_strlen(tp, buf);
417 padl = col->decimal - d;
419 tbl_char(tp, ASCII_NBRSP, padl);
420 term_word(tp, dp->string);
421 if (col->width > sz + padl)
422 tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);