lib/charsets.h

   1 /** \file charsets.h
   2  *  \brief Header: Text conversion from one charset to another
   3  */
   4
   5 #ifndef MC__CHARSETS_H
   6 #define MC__CHARSETS_H
   7
   8 #include "lib/global.h"
   9
  10
  11 /*** typedefs(not structures) and defined constants **********************************************/
  12
  13 #ifdef HAVE_CHARSET
  14 #define UNKNCHAR '\001'
  15 #else
  16 #define convert_to_display_c(c) (c)
  17 #define convert_from_input_c(c) (c)
  18 #define convert_to_display(str) do {} while (0)
  19 #define convert_from_input(str) do {} while (0)
  20 #endif /* HAVE_CHARSET */
  21
  22 /*** enums ***************************************************************************************/
  23
  24 /*** structures declarations (and typedefs of structures)*****************************************/
  25 #ifdef HAVE_CHARSET
  26
  27 typedef struct
  28 {
  29     char *id;
  30     char *name;
  31 } codepage_desc;
  32
  33 /*** global variables defined in .c file *********************************************************/
  34
  35 extern unsigned char conv_displ[256];
  36 extern unsigned char conv_input[256];
  37
  38 extern const char *cp_display;
  39 extern const char *cp_source;
  40 extern GPtrArray *codepages;
  41
  42 /*** declarations of public functions ************************************************************/
  43
  44 const char *get_codepage_id (const int n);
  45 int get_codepage_index (const char *id);
  46 void load_codepages_list (void);
  47 void free_codepages_list (void);
  48 gboolean is_supported_encoding (const char *encoding);
  49 char *init_translation_table (int cpsource, int cpdisplay);
  50 void convert_to_display (char *str);
  51 void convert_from_input (char *str);
  52 void convert_string (unsigned char *str);
  53
  54 /*
  55  * Converter from utf to selected codepage
  56  * param str, utf char
  57  * return char in needle codepage (by global int source_codepage)
  58  */
  59 unsigned char convert_from_utf_to_current (const char *str);
  60
  61 /*
  62  * Converter from utf to selected codepage
  63  * param input_char, gunichar
  64  * return char in needle codepage (by global int source_codepage)
  65  */
  66 unsigned char convert_from_utf_to_current_c (const int input_char, GIConv conv);
  67
  68 /*
  69  * Converter from selected codepage 8-bit
  70  * param char input_char, GIConv converter
  71  * return int utf char
  72  */
  73 int convert_from_8bit_to_utf_c (const char input_char, GIConv conv);
  74
  75 /*
  76  * Converter from display codepage 8-bit to utf-8
  77  * param char input_char, GIConv converter
  78  * return int utf char
  79  */
  80 int convert_from_8bit_to_utf_c2 (const char input_char);
  81
  82 GString *str_convert_to_input (char *str);
  83 GString *str_nconvert_to_input (char *str, int len);
  84
  85 GString *str_convert_to_display (char *str);
  86 GString *str_nconvert_to_display (char *str, int len);
  87
  88 /*** inline functions ****************************************************************************/
  89
  90 /* Convert single characters */
  91 static inline int
  92 convert_to_display_c (int c)
  93 {
  94     if (c < 0 || c >= 256)
  95         return c;
  96     return conv_displ[c];
  97 }
  98
  99 static inline int
 100 convert_from_input_c (int c)
 101 {
 102     if (c < 0 || c >= 256)
 103         return c;
 104     return conv_input[c];
 105 }
 106
 107 #endif /* HAVE_CHARSET */
 108
 109 #endif /* MC__CHARSETS_H */