term_ascii.c revision 95c635efb7c3b86efc493e0447eaec7aecca3f0f
/* $Id: term_ascii.c,v 1.20 2011/12/04 23:10:52 schwarze Exp $ */
/*
* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
*
* 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>
#ifdef USE_WCHAR
# include <locale.h>
#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef USE_WCHAR
# include <wchar.h>
#endif
#include "mandoc.h"
#include "out.h"
#include "term.h"
#include "main.h"
/*
* Sadly, this doesn't seem to be defined on systems even when they
* support it. For the time being, remove it and let those compiling
* the software decide for themselves what to use.
*/
#if 0
#if ! defined(__STDC_ISO_10646__)
#endif
#endif
static double ascii_hspan(const struct termp *,
const struct roffsu *);
static void ascii_begin(struct termp *);
static void ascii_endline(struct termp *);
static void ascii_letter(struct termp *, int);
#ifdef USE_WCHAR
static void locale_endline(struct termp *);
static void locale_letter(struct termp *, int);
#endif
static struct termp *
{
const char *toks[4];
char *v;
struct termp *p;
p->tabwidth = 5;
p->defrmargin = 78;
p->begin = ascii_begin;
p->hspan = ascii_hspan;
p->type = TERMTYPE_CHAR;
p->enc = TERMENC_ASCII;
p->advance = ascii_advance;
p->endline = ascii_endline;
p->letter = ascii_letter;
p->width = ascii_width;
#ifdef USE_WCHAR
if (TERMENC_ASCII != enc) {
v = TERMENC_LOCALE == enc ?
p->advance = locale_advance;
p->endline = locale_endline;
p->letter = locale_letter;
p->width = locale_width;
}
}
#endif
toks[0] = "indent";
case (0):
break;
case (1):
break;
case (2):
/*
* Temporary, undocumented mode
* to imitate mdoc(7) output style.
*/
p->mdocstyle = 1;
p->defindent = 5;
break;
default:
break;
}
/* Enforce a lower boundary. */
if (p->defrmargin < 58)
p->defrmargin = 58;
return(p);
}
void *
ascii_alloc(char *outopts)
{
}
void *
utf8_alloc(char *outopts)
{
}
void *
locale_alloc(char *outopts)
{
}
/* ARGSUSED */
static size_t
ascii_width(const struct termp *p, int c)
{
return(1);
}
void
ascii_free(void *arg)
{
}
/* ARGSUSED */
static void
ascii_letter(struct termp *p, int c)
{
putchar(c);
}
static void
ascii_begin(struct termp *p)
{
}
static void
{
}
/* ARGSUSED */
static void
ascii_endline(struct termp *p)
{
putchar('\n');
}
/* ARGSUSED */
static void
{
size_t i;
for (i = 0; i < len; i++)
putchar(' ');
}
/* ARGSUSED */
static double
{
double r;
/*
* Approximate based on character width. These are generated
* entirely by eyeballing the screen, but appear to be correct.
*/
case (SCALE_CM):
break;
case (SCALE_IN):
break;
case (SCALE_PC):
break;
case (SCALE_PT):
break;
case (SCALE_MM):
break;
case (SCALE_VS):
break;
default:
break;
}
return(r);
}
#ifdef USE_WCHAR
/* ARGSUSED */
static size_t
locale_width(const struct termp *p, int c)
{
int rc;
}
/* ARGSUSED */
static void
{
size_t i;
for (i = 0; i < len; i++)
putwchar(L' ');
}
/* ARGSUSED */
static void
locale_endline(struct termp *p)
{
putwchar(L'\n');
}
/* ARGSUSED */
static void
locale_letter(struct termp *p, int c)
{
putwchar(c);
}
#endif