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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2002 Ximian, Inc.
*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h>
#include "camel-mime-filter-chomp.h"
static void filter (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
char **out, size_t *outlen, size_t *outprespace);
static void complete (CamelMimeFilter *f, char *in, size_t len,
size_t prespace, char **out, size_t *outlen,
size_t *outprespace);
static void reset (CamelMimeFilter *f);
static void
camel_mime_filter_chomp_class_init (CamelMimeFilterChompClass *klass)
{
CamelMimeFilterClass *mime_filter_class =
(CamelMimeFilterClass *) klass;
mime_filter_class->filter = filter;
mime_filter_class->complete = complete;
mime_filter_class->reset = reset;
}
CamelType
camel_mime_filter_chomp_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
type = camel_type_register (camel_mime_filter_get_type(), "CamelMimeFilterChomp",
sizeof (CamelMimeFilterChomp),
sizeof (CamelMimeFilterChompClass),
(CamelObjectClassInitFunc) camel_mime_filter_chomp_class_init,
NULL,
NULL,
NULL);
}
return type;
}
static void
filter (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
char **out, size_t *outlen, size_t *outprespace)
{
register unsigned char *inptr, *s;
const unsigned char *inend;
register char *outptr;
camel_mime_filter_set_size (f, len + prespace, FALSE);
inend = in + len;
inptr = in;
outptr = f->outbuf;
while (inptr < inend) {
s = inptr;
while (inptr < inend && isspace ((int) *inptr))
inptr++;
if (inptr < inend) {
while (s < inptr)
*outptr++ = (char) *s++;
while (inptr < inend && !isspace ((int) *inptr))
*outptr++ = (char) *inptr++;
} else {
#if 0
if ((inend - s) >= 2 && *s == '\r' && *(s + 1) == '\n')
*outptr++ = *s++;
if (*s == '\n')
*outptr++ = *s++;
#endif
if (s < inend)
camel_mime_filter_backup (f, s, inend - s);
break;
}
}
*out = f->outbuf;
*outlen = outptr - f->outbuf;
*outprespace = f->outpre;
}
static void
complete (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
char **out, size_t *outlen, size_t *outprespace)
{
unsigned char *inptr;
char *outptr;
if (len)
filter (f, in, len, prespace, out, outlen, outprespace);
if (f->backlen) {
inptr = (unsigned char *) f->backbuf;
outptr = f->outbuf + *outlen;
/* in the case of a canonical eoln */
if (*inptr == '\r' && *(inptr + 1) == '\n') {
*outptr++ = *inptr++;
(*outlen)++;
}
if (*inptr == '\n') {
*outptr++ = *inptr++;
(*outlen)++;
}
/* to protect against further complete calls */
camel_mime_filter_backup (f, "", 0);
}
}
static void
reset (CamelMimeFilter *f)
{
/* no-op */
}
CamelMimeFilter *
camel_mime_filter_chomp_new (void)
{
CamelMimeFilterChomp *chomp = CAMEL_MIME_FILTER_CHOMP (camel_object_new (CAMEL_MIME_FILTER_CHOMP_TYPE));
return (CamelMimeFilter *) chomp;
}
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