mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
// -*- C++ -*-
|
|
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
|
|
Written by James Clark (jjc@jclark.com)
|
|
|
|
This file is part of groff.
|
|
|
|
groff is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
version.
|
|
|
|
groff is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with groff; see the file COPYING. If not, write to the Free Software
|
|
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#include "eqn.h"
|
|
#include "pbox.h"
|
|
|
|
class mark_box : public pointer_box {
|
|
public:
|
|
mark_box(box *);
|
|
int compute_metrics(int);
|
|
void output();
|
|
void debug_print();
|
|
};
|
|
|
|
// we push down marks so that they don't interfere with spacing
|
|
|
|
box *make_mark_box(box *p)
|
|
{
|
|
list_box *b = p->to_list_box();
|
|
if (b != 0) {
|
|
b->list.p[0] = make_mark_box(b->list.p[0]);
|
|
return b;
|
|
}
|
|
else
|
|
return new mark_box(p);
|
|
}
|
|
|
|
mark_box::mark_box(box *pp) : pointer_box(pp)
|
|
{
|
|
}
|
|
|
|
void mark_box::output()
|
|
{
|
|
p->output();
|
|
}
|
|
|
|
int mark_box::compute_metrics(int style)
|
|
{
|
|
int res = p->compute_metrics(style);
|
|
if (res)
|
|
error("multiple marks and lineups");
|
|
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
|
|
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
|
|
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
|
|
printf(".nr " MARK_REG " 0\n");
|
|
return FOUND_MARK;
|
|
}
|
|
|
|
void mark_box::debug_print()
|
|
{
|
|
fprintf(stderr, "mark { ");
|
|
p->debug_print();
|
|
fprintf(stderr, " }");
|
|
}
|
|
|
|
|
|
class lineup_box : public pointer_box {
|
|
public:
|
|
lineup_box(box *);
|
|
void output();
|
|
int compute_metrics(int style);
|
|
void debug_print();
|
|
};
|
|
|
|
// we push down lineups so that they don't interfere with spacing
|
|
|
|
box *make_lineup_box(box *p)
|
|
{
|
|
list_box *b = p->to_list_box();
|
|
if (b != 0) {
|
|
b->list.p[0] = make_lineup_box(b->list.p[0]);
|
|
return b;
|
|
}
|
|
else
|
|
return new lineup_box(p);
|
|
}
|
|
|
|
lineup_box::lineup_box(box *pp) : pointer_box(pp)
|
|
{
|
|
}
|
|
|
|
void lineup_box::output()
|
|
{
|
|
p->output();
|
|
}
|
|
|
|
int lineup_box::compute_metrics(int style)
|
|
{
|
|
int res = p->compute_metrics(style);
|
|
if (res)
|
|
error("multiple marks and lineups");
|
|
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
|
|
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
|
|
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
|
|
printf(".nr " MARK_REG " 0\n");
|
|
return FOUND_LINEUP;
|
|
}
|
|
|
|
void lineup_box::debug_print()
|
|
{
|
|
fprintf(stderr, "lineup { ");
|
|
p->debug_print();
|
|
fprintf(stderr, " }");
|
|
}
|