/* $Id$ */
/*
* Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011,2012,2014,2015,2017 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"
#define IS_HORIZ(cp) ((cp)->pos == TBL_CELL_HORIZ || \
(cp)->pos == TBL_CELL_DHORIZ)
static size_t term_tbl_len(size_t, void *);
static size_t term_tbl_strlen(const char *, void *);
static size_t term_tbl_sulen(const struct roffsu *, void *);
static void tbl_char(struct termp *, char, size_t);
static void tbl_data(struct termp *, const struct tbl_opts *,
const struct tbl_cell *,
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_sulen(const struct roffsu *su, void *arg)
{
return term_hen((const struct termp *)arg, su);
}
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, *cpn, *cpp;
const struct tbl_dat *dp;
static size_t offset;
size_t coloff, tsz;
int ic, horiz, spans, vert, more;
char fc;
/* Inhibit printing of spaces: we do padding ourselves. */
tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE;
/*
* The first time we're invoked for a given table block,
* calculate the table widths and decimal positions.
*/
if (tp->tbl.cols == NULL) {
tp->tbl.len = term_tbl_len;
tp->tbl.slen = term_tbl_strlen;
tp->tbl.sulen = term_tbl_sulen;
tp->tbl.arg = tp;
tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin);
/* Tables leak .ta settings to subsequent text. */
term_tab_set(tp, NULL);
coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
sp->opts->lvert;
for (ic = 0; ic < sp->opts->cols; ic++) {
coloff += tp->tbl.cols[ic].width;
term_tab_iset(coloff);
coloff += tp->tbl.cols[ic].spacing;
}
/* Center the table as a whole. */
offset = tp->tcol->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 + 1 < sp->opts->cols; ic++)
tsz += tp->tbl.cols[ic].width +
tp->tbl.cols[ic].spacing;
if (sp->opts->cols)
tsz += tp->tbl.cols[sp->opts->cols - 1].width;
if (offset + tsz > tp->tcol->rmargin)
tsz -= 1;
tp->tcol->offset = offset + tp->tcol->rmargin > tsz ?
(offset + tp->tcol->rmargin - tsz) / 2 : 0;
}
/* Horizontal frame at the start of boxed tables. */
if (sp->opts->opts & TBL_OPT_DBOX)
tbl_hrule(tp, sp, 3);
if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
tbl_hrule(tp, sp, 2);
}
/* Set up the columns. */
tp->flags |= TERMP_MULTICOL;
horiz = 0;
switch (sp->pos) {
case TBL_SPAN_HORIZ:
case TBL_SPAN_DHORIZ:
horiz = 1;
term_setcol(tp, 1);
break;
case TBL_SPAN_DATA:
term_setcol(tp, sp->opts->cols + 2);
coloff = tp->tcol->offset;
/* Set up a column for a left vertical frame. */
if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
sp->opts->lvert)
coloff++;
tp->tcol->rmargin = coloff;
/* Set up the data columns. */
dp = sp->first;
spans = 0;
for (ic = 0; ic < sp->opts->cols; ic++) {
if (spans == 0) {
tp->tcol++;
tp->tcol->offset = coloff;
}
coloff += tp->tbl.cols[ic].width;
tp->tcol->rmargin = coloff;
if (ic + 1 < sp->opts->cols)
coloff += tp->tbl.cols[ic].spacing;
if (spans) {
spans--;
continue;
}
if (dp == NULL)
continue;
spans = dp->spans;
dp = dp->next;
}
/* Set up a column for a right vertical frame. */
tp->tcol++;
tp->tcol->offset = coloff + 1;
tp->tcol->rmargin = tp->maxrmargin;
/* Spans may have reduced the number of columns. */
tp->lasttcol = tp->tcol - tp->tcols;
/* Fill the buffers for all data columns. */
tp->tcol = tp->tcols;
cp = cpn = sp->layout->first;
dp = sp->first;
spans = 0;
for (ic = 0; ic < sp->opts->cols; ic++) {
if (cpn != NULL) {
cp = cpn;
cpn = cpn->next;
}
if (spans) {
spans--;
continue;
}
tp->tcol++;
tp->col = 0;
tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic);
if (dp == NULL)
continue;
spans = dp->spans;
dp = dp->next;
}
break;
}
do {
/* Print the vertical frame at the start of each row. */
tp->tcol = tp->tcols;
fc = '\0';
if (sp->layout->vert ||
(sp->next != NULL && sp->next->layout->vert &&
sp->next->pos == TBL_SPAN_DATA) ||
(sp->prev != NULL && sp->prev->layout->vert &&
(horiz || (IS_HORIZ(sp->layout->first) &&
!IS_HORIZ(sp->prev->layout->first)))) ||
sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
fc = horiz || IS_HORIZ(sp->layout->first) ? '+' : '|';
else if (horiz && sp->opts->lvert)
fc = '-';
if (fc != '\0') {
(*tp->advance)(tp, tp->tcols->offset);
(*tp->letter)(tp, fc);
tp->viscol = tp->tcol->offset + 1;
}
/* Print the data cells. */
more = 0;
if (horiz) {
tbl_hrule(tp, sp, 0);
term_flushln(tp);
} else {
cp = sp->layout->first;
cpn = sp->next == NULL ? NULL :
sp->next->layout->first;
cpp = sp->prev == NULL ? NULL :
sp->prev->layout->first;
dp = sp->first;
spans = 0;
for (ic = 0; ic < sp->opts->cols; ic++) {
/*
* Figure out whether to print a
* vertical line after this cell
* and advance to next layout cell.
*/
if (cp != NULL) {
vert = cp->vert;
switch (cp->pos) {
case TBL_CELL_HORIZ:
fc = '-';
break;
case TBL_CELL_DHORIZ:
fc = '=';
break;
default:
fc = ' ';
break;
}
} else {
vert = 0;
fc = ' ';
}
if (cpp != NULL) {
if (vert == 0 &&
cp != NULL &&
((IS_HORIZ(cp) &&
!IS_HORIZ(cpp)) ||
(cp->next != NULL &&
cpp->next != NULL &&
IS_HORIZ(cp->next) &&
!IS_HORIZ(cpp->next))))
vert = cpp->vert;
cpp = cpp->next;
}
if (vert == 0 &&
sp->opts->opts & TBL_OPT_ALLBOX)
vert = 1;
if (cpn != NULL) {
if (vert == 0)
vert = cpn->vert;
cpn = cpn->next;
}
if (cp != NULL)
cp = cp->next;
/*
* Skip later cells in a span,
* figure out whether to start a span,
* and advance to next data cell.
*/
if (spans) {
spans--;
continue;
}
if (dp != NULL) {
spans = dp->spans;
dp = dp->next;
}
/*
* Print one line of text in the cell
* and remember whether there is more.
*/
tp->tcol++;
if (tp->tcol->col < tp->tcol->lastcol)
term_flushln(tp);
if (tp->tcol->col < tp->tcol->lastcol)
more = 1;
/*
* Vertical frames between data cells,
* but not after the last column.
*/
if (fc == ' ' && ((vert == 0 &&
(cp == NULL || !IS_HORIZ(cp))) ||
tp->tcol + 1 == tp->tcols + tp->lasttcol))
continue;
if (tp->viscol < tp->tcol->rmargin) {
(*tp->advance)(tp, tp->tcol->rmargin
- tp->viscol);
tp->viscol = tp->tcol->rmargin;
}
while (tp->viscol < tp->tcol->rmargin +
tp->tbl.cols[ic].spacing / 2) {
(*tp->letter)(tp, fc);
tp->viscol++;
}
if (tp->tcol + 1 == tp->tcols + tp->lasttcol)
continue;
if (fc == ' ' && cp != NULL) {
switch (cp->pos) {
case TBL_CELL_HORIZ:
fc = '-';
break;
case TBL_CELL_DHORIZ:
fc = '=';
break;
default:
break;
}
}
if (tp->tbl.cols[ic].spacing) {
(*tp->letter)(tp, fc == ' ' ? '|' :
vert ? '+' : fc);
tp->viscol++;
}
if (fc != ' ') {
if (cp != NULL &&
cp->pos == TBL_CELL_HORIZ)
fc = '-';
else if (cp != NULL &&
cp->pos == TBL_CELL_DHORIZ)
fc = '=';
else
fc = ' ';
}
if (tp->tbl.cols[ic].spacing > 2 &&
(vert > 1 || fc != ' ')) {
(*tp->letter)(tp, fc == ' ' ? '|' :
vert > 1 ? '+' : fc);
tp->viscol++;
}
}
}
/* Print the vertical frame at the end of each row. */
fc = '\0';
if ((sp->layout->last->vert &&
sp->layout->last->col + 1 == sp->opts->cols) ||
(sp->next != NULL &&
sp->next->layout->last->vert &&
sp->next->layout->last->col + 1 == sp->opts->cols) ||
(sp->prev != NULL &&
sp->prev->layout->last->vert &&
sp->prev->layout->last->col + 1 == sp->opts->cols &&
(horiz || (IS_HORIZ(sp->layout->last) &&
!IS_HORIZ(sp->prev->layout->last)))) ||
(sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
fc = horiz || IS_HORIZ(sp->layout->last) ? '+' : '|';
else if (horiz && sp->opts->rvert)
fc = '-';
if (fc != '\0') {
if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 ||
sp->layout->last->col + 1 < sp->opts->cols)) {
tp->tcol++;
(*tp->advance)(tp,
tp->tcol->offset > tp->viscol ?
tp->tcol->offset - tp->viscol : 1);
}
(*tp->letter)(tp, fc);
}
(*tp->endline)(tp);
tp->viscol = 0;
} while (more);
/*
* Clean up after this row. If it is the last line
* of the table, print the box line and clean up
* column data; otherwise, print the allbox line.
*/
term_setcol(tp, 1);
tp->flags &= ~TERMP_MULTICOL;
tp->tcol->rmargin = tp->maxrmargin;
if (sp->next == NULL) {
if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
tbl_hrule(tp, sp, 2);
tp->skipvsp = 1;
}
if (sp->opts->opts & TBL_OPT_DBOX) {
tbl_hrule(tp, sp, 3);
tp->skipvsp = 2;
}
assert(tp->tbl.cols);
free(tp->tbl.cols);
tp->tbl.cols = NULL;
tp->tcol->offset = offset;
} else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX &&
(sp->next == NULL || sp->next->pos == TBL_SPAN_DATA ||
sp->next->next != NULL))
tbl_hrule(tp, sp, 1);
tp->flags &= ~TERMP_NONOSPACE;
}
/*
* Kinds of horizontal rulers:
* 0: inside the table (single or double line with crossings)
* 1: inside the table (single or double line with crossings and ends)
* 2: inner frame (single line with crossings and ends)
* 3: 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 *cp, *cpn, *cpp;
const struct roffcol *col;
int vert;
char line, cross;
line = (kind < 2 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
cross = (kind < 3) ? '+' : '-';
if (kind)
term_word(tp, "+");
cp = sp->layout->first;
cpp = kind || sp->prev == NULL ? NULL : sp->prev->layout->first;
if (cpp == cp)
cpp = NULL;
cpn = kind > 1 || sp->next == NULL ? NULL : sp->next->layout->first;
if (cpn == cp)
cpn = NULL;
for (;;) {
col = tp->tbl.cols + cp->col;
tbl_char(tp, line, col->width + col->spacing / 2);
vert = cp->vert;
if ((cp = cp->next) == NULL)
break;
if (cpp != NULL) {
if (vert < cpp->vert)
vert = cpp->vert;
cpp = cpp->next;
}
if (cpn != NULL) {
if (vert < cpn->vert)
vert = cpn->vert;
cpn = cpn->next;
}
if (sp->opts->opts & TBL_OPT_ALLBOX && !vert)
vert = 1;
if (col->spacing)
tbl_char(tp, vert ? cross : line, 1);
if (col->spacing > 2)
tbl_char(tp, vert > 1 ? cross : line, 1);
if (col->spacing > 4)
tbl_char(tp, line, (col->spacing - 3) / 2);
}
if (kind) {
term_word(tp, "+");
term_flushln(tp);
}
}
static void
tbl_data(struct termp *tp, const struct tbl_opts *opts,
const struct tbl_cell *cp, const struct tbl_dat *dp,
const struct roffcol *col)
{
switch (cp->pos) {
case TBL_CELL_HORIZ:
tbl_char(tp, '-', col->width);
return;
case TBL_CELL_DHORIZ:
tbl_char(tp, '=', col->width);
return;
default:
break;
}
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:
case TBL_DATA_NHORIZ:
tbl_char(tp, '-', col->width);
return;
case TBL_DATA_NDHORIZ:
case TBL_DATA_DHORIZ:
tbl_char(tp, '=', col->width);
return;
default:
break;
}
switch (cp->pos) {
case TBL_CELL_LONG:
case TBL_CELL_CENTRE:
case TBL_CELL_LEFT:
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();
}
}
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);
}
