/* $Id$ */
/*
* Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011, 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc.h"
#include "out.h"
#include "term.h"
static size_t term_tbl_len(size_t, void *);
static size_t term_tbl_strlen(const char *, void *);
static void tbl_char(struct termp *, char, size_t);
static void tbl_data(struct termp *, const struct tbl_opts *,
const struct tbl_dat *,
const struct roffcol *);
static void tbl_literal(struct termp *, const struct tbl_dat *,
const struct roffcol *);
static void tbl_number(struct termp *, const struct tbl_opts *,
const struct tbl_dat *,
const struct roffcol *);
static void tbl_hrule(struct termp *, const struct tbl_span *, int);
static void tbl_word(struct termp *, const struct tbl_dat *);
static size_t
term_tbl_strlen(const char *p, void *arg)
{
return(term_strlen((const struct termp *)arg, p));
}
static size_t
term_tbl_len(size_t sz, void *arg)
{
return(term_len((const struct termp *)arg, sz));
}
void
term_tbl(struct termp *tp, const struct tbl_span *sp)
{
const struct tbl_cell *cp;
const struct tbl_dat *dp;
static size_t offset;
size_t rmargin, maxrmargin, tsz;
int ic, horiz, spans, vert;
rmargin = tp->rmargin;
maxrmargin = tp->maxrmargin;
tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
/* Inhibit printing of spaces: we do padding ourselves. */
tp->flags |= TERMP_NONOSPACE;
tp->flags |= TERMP_NOSPACE;
/*
* The first time we're invoked for a given table block,
* calculate the table widths and decimal positions.
*/
if (tp->tbl.cols == NULL) {
term_flushln(tp);
tp->tbl.len = term_tbl_len;
tp->tbl.slen = term_tbl_strlen;
tp->tbl.arg = tp;
tblcalc(&tp->tbl, sp, rmargin - tp->offset);
/* Center the table as a whole. */
offset = tp->offset;
if (sp->opts->opts & TBL_OPT_CENTRE) {
tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
for (ic = 0; ic < sp->opts->cols; ic++)
tsz += tp->tbl.cols[ic].width + 3;
tsz -= 3;
if (offset + tsz > rmargin)
tsz -= 1;
tp->offset = (offset + rmargin > tsz) ?
(offset + rmargin - tsz) / 2 : 0;
}
/* Horizontal frame at the start of boxed tables. */
if (sp->opts->opts & TBL_OPT_DBOX)
tbl_hrule(tp, sp, 2);
if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
tbl_hrule(tp, sp, 1);
}
/* Vertical frame at the start of each row. */
horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
if (sp->layout->vert ||
(sp->prev != NULL && sp->prev->layout->vert) ||
sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
term_word(tp, horiz ? "+" : "|");
else if (sp->opts->lvert)
tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
/*
* Now print the actual data itself depending on the span type.
* Match data cells to column numbers.
*/
if (sp->pos == TBL_SPAN_DATA) {
cp = sp->layout->first;
dp = sp->first;
spans = 0;
for (ic = 0; ic < sp->opts->cols; ic++) {
/*
* Remeber whether we need a vertical bar
* after this cell.
*/
vert = cp == NULL ? 0 : cp->vert;
/*
* Print the data and advance to the next cell.
*/
if (spans == 0) {
tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
if (dp != NULL) {
spans = dp->spans;
dp = dp->next;
}
} else
spans--;
if (cp != NULL)
cp = cp->next;
/*
* Separate columns, except in the middle
* of spans and after the last cell.
*/
if (ic + 1 == sp->opts->cols || spans)
continue;
tbl_char(tp, ASCII_NBRSP, 1);
if (vert > 0)
tbl_char(tp, '|', vert);
if (vert < 2)
tbl_char(tp, ASCII_NBRSP, 2 - vert);
}
} else if (horiz)
tbl_hrule(tp, sp, 0);
/* Vertical frame at the end of each row. */
if (sp->layout->last->vert ||
(sp->prev != NULL && sp->prev->layout->last->vert) ||
(sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
term_word(tp, horiz ? "+" : " |");
else if (sp->opts->rvert)
tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
term_flushln(tp);
/*
* If we're the last row, clean up after ourselves: clear the
* existing table configuration and set it to NULL.
*/
if (sp->next == NULL) {
if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
tbl_hrule(tp, sp, 1);
tp->skipvsp = 1;
}
if (sp->opts->opts & TBL_OPT_DBOX) {
tbl_hrule(tp, sp, 2);
tp->skipvsp = 2;
}
assert(tp->tbl.cols);
free(tp->tbl.cols);
tp->tbl.cols = NULL;
tp->offset = offset;
}
tp->flags &= ~TERMP_NONOSPACE;
tp->rmargin = rmargin;
tp->maxrmargin = maxrmargin;
}
/*
* Kinds of horizontal rulers:
* 0: inside the table (single or double line with crossings)
* 1: inner frame (single line with crossings and ends)
* 2: outer frame (single line without crossings with ends)
*/
static void
tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
{
const struct tbl_cell *c1, *c2;
int vert;
char line, cross;
line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
cross = (kind < 2) ? '+' : '-';
if (kind)
term_word(tp, "+");
c1 = sp->layout->first;
c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
if (c2 == c1)
c2 = NULL;
for (;;) {
tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
vert = c1->vert;
if ((c1 = c1->next) == NULL)
break;
if (c2 != NULL) {
if (vert < c2->vert)
vert = c2->vert;
c2 = c2->next;
}
if (vert)
tbl_char(tp, cross, vert);
if (vert < 2)
tbl_char(tp, line, 2 - vert);
}
if (kind) {
term_word(tp, "+");
term_flushln(tp);
}
}
static void
tbl_data(struct termp *tp, const struct tbl_opts *opts,
const struct tbl_dat *dp,
const struct roffcol *col)
{
if (dp == NULL) {
tbl_char(tp, ASCII_NBRSP, col->width);
return;
}
switch (dp->pos) {
case TBL_DATA_NONE:
tbl_char(tp, ASCII_NBRSP, col->width);
return;
case TBL_DATA_HORIZ:
/* FALLTHROUGH */
case TBL_DATA_NHORIZ:
tbl_char(tp, '-', col->width);
return;
case TBL_DATA_NDHORIZ:
/* FALLTHROUGH */
case TBL_DATA_DHORIZ:
tbl_char(tp, '=', col->width);
return;
default:
break;
}
switch (dp->layout->pos) {
case TBL_CELL_HORIZ:
tbl_char(tp, '-', col->width);
break;
case TBL_CELL_DHORIZ:
tbl_char(tp, '=', col->width);
break;
case TBL_CELL_LONG:
/* FALLTHROUGH */
case TBL_CELL_CENTRE:
/* FALLTHROUGH */
case TBL_CELL_LEFT:
/* FALLTHROUGH */
case TBL_CELL_RIGHT:
tbl_literal(tp, dp, col);
break;
case TBL_CELL_NUMBER:
tbl_number(tp, opts, dp, col);
break;
case TBL_CELL_DOWN:
tbl_char(tp, ASCII_NBRSP, col->width);
break;
default:
abort();
/* NOTREACHED */
}
}
static void
tbl_char(struct termp *tp, char c, size_t len)
{
size_t i, sz;
char cp[2];
cp[0] = c;
cp[1] = '\0';
sz = term_strlen(tp, cp);
for (i = 0; i < len; i += sz)
term_word(tp, cp);
}
static void
tbl_literal(struct termp *tp, const struct tbl_dat *dp,
const struct roffcol *col)
{
size_t len, padl, padr, width;
int ic, spans;
assert(dp->string);
len = term_strlen(tp, dp->string);
width = col->width;
ic = dp->layout->col;
spans = dp->spans;
while (spans--)
width += tp->tbl.cols[++ic].width + 3;
padr = width > len ? width - len : 0;
padl = 0;
switch (dp->layout->pos) {
case TBL_CELL_LONG:
padl = term_len(tp, 1);
padr = padr > padl ? padr - padl : 0;
break;
case TBL_CELL_CENTRE:
if (2 > padr)
break;
padl = padr / 2;
padr -= padl;
break;
case TBL_CELL_RIGHT:
padl = padr;
padr = 0;
break;
default:
break;
}
tbl_char(tp, ASCII_NBRSP, padl);
tbl_word(tp, dp);
tbl_char(tp, ASCII_NBRSP, padr);
}
static void
tbl_number(struct termp *tp, const struct tbl_opts *opts,
const struct tbl_dat *dp,
const struct roffcol *col)
{
char *cp;
char buf[2];
size_t sz, psz, ssz, d, padl;
int i;
/*
* See calc_data_number(). Left-pad by taking the offset of our
* and the maximum decimal; right-pad by the remaining amount.
*/
assert(dp->string);
sz = term_strlen(tp, dp->string);
buf[0] = opts->decimal;
buf[1] = '\0';
psz = term_strlen(tp, buf);
if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
buf[0] = dp->string[i];
ssz += term_strlen(tp, buf);
}
d = ssz + psz;
} else
d = sz + psz;
if (col->decimal > d && col->width > sz) {
padl = col->decimal - d;
if (padl + sz > col->width)
padl = col->width - sz;
tbl_char(tp, ASCII_NBRSP, padl);
} else
padl = 0;
tbl_word(tp, dp);
if (col->width > sz + padl)
tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
}
static void
tbl_word(struct termp *tp, const struct tbl_dat *dp)
{
int prev_font;
prev_font = tp->fonti;
if (dp->layout->flags & TBL_CELL_BOLD)
term_fontpush(tp, TERMFONT_BOLD);
else if (dp->layout->flags & TBL_CELL_ITALIC)
term_fontpush(tp, TERMFONT_UNDER);
term_word(tp, dp->string);
term_fontpopq(tp, prev_font);
}
