File: [cvsweb.bsd.lv] / mandoc / tbl_term.c (download)
Revision 1.1, Sun Jan 2 12:21:07 2011 UTC (13 years, 5 months ago) by kristaps
Branch: MAIN
Turn on -Tascii tbl printing. The output still has some issues---I'm
not sure whether it's in the header calculation or term.c squashing
spaces or whatever, but let's get this in for general testing as soon as
possible.
|
/* $Id: tbl_term.c,v 1.1 2011/01/02 12:21:07 kristaps Exp $ */
/*
* Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc.h"
#include "out.h"
#include "term.h"
/* FIXME: `n' modifier doesn't always do the right thing. */
/* FIXME: `n' modifier doesn't use the cell-spacing buffer. */
static inline void tbl_char(struct termp *, char, int);
static void tbl_hframe(struct termp *,
const struct tbl_span *);
static void tbl_data_number(struct termp *,
const struct tbl *,
const struct tbl_dat *, int);
static void tbl_data_literal(struct termp *,
const struct tbl_dat *, int);
static void tbl_data_spanner(struct termp *,
const struct tbl_dat *, int);
static void tbl_data(struct termp *, const struct tbl *,
const struct tbl_dat *, int);
static void tbl_spanner(struct termp *,
const struct tbl_head *);
static void tbl_hrule(struct termp *,
const struct tbl_span *);
static void tbl_vframe(struct termp *, const struct tbl *);
void
term_tbl(struct termp *tp, const struct tbl_span *sp)
{
const struct tbl_head *hp;
const struct tbl_dat *dp;
if (TBL_SPAN_FIRST & sp->flags)
term_flushln(tp);
if (TBL_SPAN_FIRST & sp->flags)
tbl_hframe(tp, sp);
tp->flags |= TERMP_NONOSPACE;
tp->flags |= TERMP_NOSPACE;
tbl_vframe(tp, sp->tbl);
switch (sp->pos) {
case (TBL_SPAN_HORIZ):
/* FALLTHROUGH */
case (TBL_SPAN_DHORIZ):
tbl_hrule(tp, sp);
tbl_vframe(tp, sp->tbl);
term_newln(tp);
tp->flags &= ~TERMP_NONOSPACE;
return;
default:
break;
}
dp = sp->first;
for (hp = sp->head; hp; hp = hp->next) {
switch (hp->pos) {
case (TBL_HEAD_VERT):
/* FALLTHROUGH */
case (TBL_HEAD_DVERT):
tbl_spanner(tp, hp);
break;
case (TBL_HEAD_DATA):
tbl_data(tp, sp->tbl, dp, hp->width);
if (dp)
dp = dp->next;
break;
default:
abort();
/* NOTREACHED */
}
}
tbl_vframe(tp, sp->tbl);
term_flushln(tp);
if (TBL_SPAN_LAST & sp->flags)
tbl_hframe(tp, sp);
tp->flags &= ~TERMP_NONOSPACE;
}
static void
tbl_hrule(struct termp *tp, const struct tbl_span *sp)
{
const struct tbl_head *hp;
char c;
/*
* An hrule extends across the entire table and is demarked by a
* standalone `_' or whatnot in lieu of a table row. Spanning
* headers are marked by a `+', as are table boundaries.
*/
c = '-';
if (TBL_SPAN_DHORIZ == sp->pos)
c = '=';
/* FIXME: don't use `+' between data and a spanner! */
for (hp = sp->head; hp; hp = hp->next) {
switch (hp->pos) {
case (TBL_HEAD_DATA):
tbl_char(tp, c, hp->width);
break;
case (TBL_HEAD_DVERT):
tbl_char(tp, '+', hp->width);
/* FALLTHROUGH */
case (TBL_HEAD_VERT):
tbl_char(tp, '+', hp->width);
break;
default:
abort();
/* NOTREACHED */
}
}
}
static void
tbl_hframe(struct termp *tp, const struct tbl_span *sp)
{
const struct tbl_head *hp;
if ( ! (TBL_OPT_BOX & sp->tbl->opts ||
TBL_OPT_DBOX & sp->tbl->opts))
return;
tp->flags |= TERMP_NONOSPACE;
tp->flags |= TERMP_NOSPACE;
/*
* Print out the horizontal part of a frame or double frame. A
* double frame has an unbroken `-' outer line the width of the
* table, bordered by `+'. The frame (or inner frame, in the
* case of the double frame) is a `-' bordered by `+' and broken
* by `+' whenever a span is encountered.
*/
if (TBL_OPT_DBOX & sp->tbl->opts) {
term_word(tp, "+");
for (hp = sp->head; hp; hp = hp->next)
tbl_char(tp, '-', hp->width);
term_word(tp, "+");
term_flushln(tp);
}
term_word(tp, "+");
for (hp = sp->head; hp; hp = hp->next) {
switch (hp->pos) {
case (TBL_HEAD_DATA):
tbl_char(tp, '-', hp->width);
break;
default:
tbl_char(tp, '+', hp->width);
break;
}
}
term_word(tp, "+");
term_flushln(tp);
}
static void
tbl_data(struct termp *tp, const struct tbl *tbl,
const struct tbl_dat *dp, int width)
{
enum tbl_cellt pos;
if (NULL == dp) {
tbl_char(tp, ASCII_NBRSP, width);
return;
}
switch (dp->pos) {
case (TBL_DATA_HORIZ):
/* FALLTHROUGH */
case (TBL_DATA_DHORIZ):
tbl_data_spanner(tp, dp, width);
return;
default:
break;
}
pos = dp->layout ? dp->layout->pos : TBL_CELL_LEFT;
switch (pos) {
case (TBL_CELL_HORIZ):
/* FALLTHROUGH */
case (TBL_CELL_DHORIZ):
tbl_data_spanner(tp, dp, width);
break;
case (TBL_CELL_LONG):
/* FALLTHROUGH */
case (TBL_CELL_CENTRE):
/* FALLTHROUGH */
case (TBL_CELL_LEFT):
/* FALLTHROUGH */
case (TBL_CELL_RIGHT):
tbl_data_literal(tp, dp, width);
break;
case (TBL_CELL_NUMBER):
tbl_data_number(tp, tbl, dp, width);
break;
default:
abort();
/* NOTREACHED */
}
}
static void
tbl_spanner(struct termp *tp, const struct tbl_head *hp)
{
switch (hp->pos) {
case (TBL_HEAD_VERT):
term_word(tp, "|");
break;
case (TBL_HEAD_DVERT):
term_word(tp, "||");
break;
default:
break;
}
}
static void
tbl_vframe(struct termp *tp, const struct tbl *tbl)
{
/* Always just a single vertical line. */
if (TBL_OPT_BOX & tbl->opts || TBL_OPT_DBOX & tbl->opts)
term_word(tp, "|");
}
static inline void
tbl_char(struct termp *tp, char c, int len)
{
int i;
char cp[2];
cp[0] = c;
cp[1] = '\0';
for (i = 0; i < len; i++)
term_word(tp, cp);
}
static void
tbl_data_spanner(struct termp *tp, const struct tbl_dat *dp, int width)
{
switch (dp->pos) {
case (TBL_DATA_HORIZ):
case (TBL_DATA_NHORIZ):
tbl_char(tp, '-', width);
break;
case (TBL_DATA_DHORIZ):
case (TBL_DATA_NDHORIZ):
tbl_char(tp, '=', width);
break;
default:
break;
}
}
static void
tbl_data_literal(struct termp *tp, const struct tbl_dat *dp, int width)
{
int padl, padr;
enum tbl_cellt pos;
padl = padr = 0;
pos = dp->layout ? dp->layout->pos : TBL_CELL_LEFT;
switch (pos) {
case (TBL_CELL_LONG):
padl = 1;
padr = width - (int)strlen(dp->string) - 1;
break;
case (TBL_CELL_CENTRE):
padl = width - (int)strlen(dp->string);
if (padl % 2)
padr++;
padl /= 2;
padr += padl;
break;
case (TBL_CELL_RIGHT):
padl = width - (int)strlen(dp->string);
break;
default:
padr = width - (int)strlen(dp->string);
break;
}
tbl_char(tp, ASCII_NBRSP, padl);
term_word(tp, dp->string);
tbl_char(tp, ASCII_NBRSP, padr);
}
static void
tbl_data_number(struct termp *tp, const struct tbl *tbl,
const struct tbl_dat *dp, int width)
{
char *decp, pnt;
int d, padl, sz;
/*
* See calc_data_number(). Left-pad by taking the offset of our
* and the maximum decimal; right-pad by the remaining amount.
*/
sz = (int)strlen(dp->string);
pnt = tbl->decimal;
if (NULL == (decp = strchr(dp->string, pnt))) {
d = sz + 1;
} else {
d = (int)(decp - dp->string) + 1;
}
assert(d <= dp->layout->head->decimal);
assert(sz - d <= dp->layout->head->width -
dp->layout->head->decimal);
padl = dp->layout->head->decimal - d + 1;
assert(width - sz - padl);
tbl_char(tp, ASCII_NBRSP, padl);
term_word(tp, dp->string);
tbl_char(tp, ASCII_NBRSP, width - sz - padl);
}