1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
2 /*  GMime
3  *  Copyright (C) 2000-2009 Jeffrey Stedfast
4  *
5  *  This library is free software; you can redistribute it and/or
6  *  modify it under the terms of the GNU Lesser General Public License
7  *  as published by the Free Software Foundation; either version 2.1
8  *  of the License, or (at your option) any later version.
9  *
10  *  This library is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  *  Lesser General Public License for more details.
14  *
15  *  You should have received a copy of the GNU Lesser General Public
16  *  License along with this library; if not, write to the Free
17  *  Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
18  *  02110-1301, USA.
19  */
20 
21 
22 #ifndef __GMIME_FILTER_BEST_H__
23 #define __GMIME_FILTER_BEST_H__
24 
25 #include <gmime/gmime-filter.h>
26 #include <gmime/gmime-charset.h>
27 #include <gmime/gmime-utils.h>
28 
29 G_BEGIN_DECLS
30 
31 #define GMIME_TYPE_FILTER_BEST            (g_mime_filter_best_get_type ())
32 #define GMIME_FILTER_BEST(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GMIME_TYPE_FILTER_BEST, GMimeFilterBest))
33 #define GMIME_FILTER_BEST_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GMIME_TYPE_FILTER_BEST, GMimeFilterBestClass))
34 #define GMIME_IS_FILTER_BEST(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GMIME_TYPE_FILTER_BEST))
35 #define GMIME_IS_FILTER_BEST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GMIME_TYPE_FILTER_BEST))
36 #define GMIME_FILTER_BEST_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GMIME_TYPE_FILTER_BEST, GMimeFilterBestClass))
37 
38 typedef struct _GMimeFilterBest GMimeFilterBest;
39 typedef struct _GMimeFilterBestClass GMimeFilterBestClass;
40 
41 enum {
42 	GMIME_FILTER_BEST_CHARSET      = (1 << 0),
43 	GMIME_FILTER_BEST_ENCODING     = (1 << 1)
44 };
45 
46 typedef enum {
47 	GMIME_BEST_ENCODING_7BIT,
48 	GMIME_BEST_ENCODING_8BIT,
49 	GMIME_BEST_ENCODING_BINARY
50 } GMimeBestEncoding;
51 
52 struct _GMimeFilterBest {
53 	GMimeFilter parent_object;
54 
55 	unsigned int flags;
56 
57 	/* for best charset detection */
58 	GMimeCharset charset;
59 
60 	/* for best encoding detection */
61 	unsigned int count0;      /* count of null bytes */
62 	unsigned int count8;      /* count of 8bit bytes */
63 	unsigned int total;       /* total octets */
64 
65 	unsigned int maxline;     /* longest line length */
66 	unsigned int linelen;     /* current line length */
67 
68 	unsigned char frombuf[6];
69 	unsigned int fromlen : 4;
70 	unsigned int hadfrom : 1;
71 
72 	unsigned int startline : 1;
73 	unsigned int midline : 1;
74 };
75 
76 struct _GMimeFilterBestClass {
77 	GMimeFilterClass parent_class;
78 
79 };
80 
81 
82 GType g_mime_filter_best_get_type (void);
83 
84 GMimeFilter *g_mime_filter_best_new (unsigned int flags);
85 
86 const char *g_mime_filter_best_charset (GMimeFilterBest *best);
87 
88 GMimePartEncodingType g_mime_filter_best_encoding (GMimeFilterBest *best, GMimeBestEncoding required);
89 
90 G_END_DECLS
91 
92 #endif /* __GMIME_FILTER_BEST_H__ */
93