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      1 /*	$NetBSD: conv.h,v 1.4 2018/08/01 02:48:47 rin Exp $	*/
      2 
      3 /*
      4  * We ensure that every wide char occupies at least one display width.
      5  * See vs_line.c for more details.
      6  */
      7 #define WIDE_COL(sp, ch)						\
      8 	(CHAR_WIDTH(sp, ch) > 0 ? CHAR_WIDTH(sp, ch) : 1)
      9 
     10 #define KEY_COL(sp, ch)							\
     11 	(INTISWIDE(ch) ? (size_t)WIDE_COL(sp, ch) : KEY_LEN(sp, ch))
     12 
     13 struct _conv_win {
     14     void    *bp1;
     15     size_t   blen1;
     16 };
     17 
     18 typedef int (*char2wchar_t)
     19     (SCR *, const char *, ssize_t, struct _conv_win *, size_t *, const CHAR_T **);
     20 typedef int (*wchar2char_t)
     21     (SCR *, const CHAR_T *, ssize_t, struct _conv_win *, size_t *, const char **);
     22 
     23 struct _conv {
     24 	char2wchar_t	sys2int;
     25 	wchar2char_t	int2sys;
     26 	char2wchar_t	file2int;
     27 	wchar2char_t	int2file;
     28 	char2wchar_t	input2int;
     29 	wchar2char_t	int2disp;
     30 };
     31 void conv_init __P((SCR *, SCR *));
     32 int conv_enc __P((SCR *, int, const char *));
     33