conv.h revision 254225
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 * $Id: conv.h,v 2.32 2013/03/11 01:20:53 zy Exp $ 12 */ 13 14#ifdef USE_ICONV 15#include <iconv.h> 16#ifdef ICONV_TRADITIONAL 17typedef char ** iconv_src_t; 18#else 19typedef char const ** iconv_src_t; 20#endif 21#else 22typedef int iconv_t; 23#endif 24 25/* 26 * XXX 27 * We can not use MB_CUR_MAX here, since UTF-8 may report it as 6, but 28 * a sequence longer than 4 is deprecated by RFC 3629. 29 */ 30#define KEY_NEEDSWIDE(sp, ch) \ 31 (INTISWIDE(ch) && KEY_LEN(sp, ch) <= 4) 32#define KEY_COL(sp, ch) \ 33 (KEY_NEEDSWIDE(sp, ch) ? CHAR_WIDTH(sp, ch) : KEY_LEN(sp, ch)) 34 35enum { IC_FE_CHAR2INT, IC_FE_INT2CHAR, IC_IE_CHAR2INT, IC_IE_TO_UTF16 }; 36 37struct _conv_win { 38 union { 39 char *c; 40 CHAR_T *wc; 41 } bp1; 42 size_t blen1; 43}; 44 45typedef int (*char2wchar_t) 46 (SCR *, const char *, ssize_t, struct _conv_win *, size_t *, CHAR_T **); 47typedef int (*wchar2char_t) 48 (SCR *, const CHAR_T *, ssize_t, struct _conv_win *, size_t *, char **); 49 50struct _conv { 51 char2wchar_t sys2int; 52 wchar2char_t int2sys; 53 char2wchar_t file2int; 54 wchar2char_t int2file; 55 char2wchar_t input2int; 56 iconv_t id[IC_IE_TO_UTF16 + 1]; 57}; 58