1 /*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1992, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * Copyright (c) 2011, 2012 7 * Zhihao Yuan. All rights reserved. 8 * 9 * See the LICENSE file for redistribution information. 10 */ 11 12 #ifdef USE_ICONV 13 #include <iconv.h> 14 #ifdef ICONV_TRADITIONAL 15 typedef char ** iconv_src_t; 16 #else 17 typedef char const ** iconv_src_t; 18 #endif 19 #else 20 typedef int iconv_t; 21 #endif 22 23 /* 24 * XXX 25 * We can not use MB_CUR_MAX here, since UTF-8 may report it as 6, but 26 * a sequence longer than 4 is deprecated by RFC 3629. 27 */ 28 #define KEY_NEEDSWIDE(sp, ch) \ 29 (INTISWIDE(ch) && KEY_LEN(sp, ch) <= 4) 30 #define KEY_COL(sp, ch) \ 31 (KEY_NEEDSWIDE(sp, ch) ? XCHAR_WIDTH(sp, ch) : KEY_LEN(sp, ch)) 32 33 enum { IC_FE_CHAR2INT, IC_FE_INT2CHAR, IC_IE_CHAR2INT, IC_IE_TO_UTF16 }; 34 35 struct _conv_win { 36 union { 37 char *c; 38 CHAR_T *wc; 39 } bp1; 40 size_t blen1; 41 }; 42 43 typedef int (*char2wchar_t) 44 (SCR *, const char *, ssize_t, struct _conv_win *, size_t *, CHAR_T **); 45 typedef int (*wchar2char_t) 46 (SCR *, const CHAR_T *, ssize_t, struct _conv_win *, size_t *, char **); 47 48 struct _conv { 49 char2wchar_t sys2int; 50 wchar2char_t int2sys; 51 char2wchar_t file2int; 52 wchar2char_t int2file; 53 char2wchar_t input2int; 54 iconv_t id[IC_IE_TO_UTF16 + 1]; 55 }; 56