pith/charset.h

   1 /*
   2  * $Id: charset.h 765 2007-10-23 23:51:37Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2013-2017 Eduardo Chappa
   6  * Copyright 2006 University of Washington
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * ========================================================================
  15  */
  16
  17 #ifndef PITH_CHARSET_INCLUDED
  18 #define PITH_CHARSET_INCLUDED
  19
  20
  21 #include "../pith/filttype.h"
  22
  23
  24 typedef struct conversion_table {
  25     char          *from_charset;
  26     char          *to_charset;
  27     int            quality;
  28     void          *table;
  29     filter_t       convert;
  30 } CONV_TABLE;
  31
  32
  33 /* Conversion table quality of tranlation */
  34 #define CV_NO_TRANSLATE_POSSIBLE        1       /* We don't know how to      */
  35                                                 /* translate this pair       */
  36 #define CV_NO_TRANSLATE_NEEDED          2       /* Not necessary, no-op      */
  37 #define CV_LOSES_SPECIAL_CHARS          3       /* Letters will translate    */
  38                                                 /* ok but some special chars */
  39                                                 /* may be lost               */
  40 #define CV_LOSES_SOME_LETTERS           4       /* Some special chars and    */
  41                                                 /* some letters may be lost  */
  42
  43
  44 #define CSET_MAX                64
  45
  46
  47 /* exported protoypes */
  48 char          *body_charset(MAILSTREAM *, long, unsigned char *);
  49 unsigned char *trans_euc_to_2022_jp(unsigned char *);
  50 unsigned char *rfc1522_decode_to_utf8(unsigned char *, size_t, char *);
  51 char          *rfc1522_encode(char *, size_t, unsigned char *, char *);
  52 CONV_TABLE    *conversion_table(char *, char *);
  53 void           decode_addr_names_to_utf8(ADDRESS *);
  54 void           convert_possibly_encoded_str_to_utf8(char **);
  55
  56
  57 #endif /* PITH_CHARSET_INCLUDED */