f0957ccae4
This is the gsoc-2011 project to clean up and backport multibyte support from other nvi forks in a form we can use. USE_WIDECHAR is on unless building for the rescue crunchgen. This should allow editing in the native locale encoding. USE_ICONV depends on make.conf having 'WITH_ICONV=YES' for now. This adds the ability to do things like edit a KOI8-R file while having $LANG set to (say) en_US.UTF-8. iconv is used to transcode the characters for display. Other points: * It uses gencat and catopen/etc instead of homegrown msg catalog stuff. * A lot of stuff has been trimmed out, eg: the perl and tcl bindings which we could never use in base anyway. * It uses ncursesw when in widechar mode. This could be interesting. GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1 Repo at: https://github.com/lichray/nvi2 Obtained from: Zhihao Yuan <lichray@gmail.com>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1992, 1993, 1994, 1995, 1996
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* Keith Bostic. All rights reserved.
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* Copyright (c) 2011, 2012
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* Zhihao Yuan. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*
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* $Id: conv.h,v 2.32 2013/03/11 01:20:53 zy Exp $
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*/
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#ifdef USE_ICONV
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#include <iconv.h>
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#ifdef ICONV_TRADITIONAL
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typedef char ** iconv_src_t;
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#else
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typedef char const ** iconv_src_t;
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#endif
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#else
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typedef int iconv_t;
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#endif
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/*
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* XXX
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* We can not use MB_CUR_MAX here, since UTF-8 may report it as 6, but
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* a sequence longer than 4 is deprecated by RFC 3629.
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*/
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#define KEY_NEEDSWIDE(sp, ch) \
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(INTISWIDE(ch) && KEY_LEN(sp, ch) <= 4)
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#define KEY_COL(sp, ch) \
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(KEY_NEEDSWIDE(sp, ch) ? CHAR_WIDTH(sp, ch) : KEY_LEN(sp, ch))
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enum { IC_FE_CHAR2INT, IC_FE_INT2CHAR, IC_IE_CHAR2INT, IC_IE_TO_UTF16 };
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struct _conv_win {
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union {
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char *c;
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CHAR_T *wc;
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} bp1;
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size_t blen1;
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};
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typedef int (*char2wchar_t)
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(SCR *, const char *, ssize_t, struct _conv_win *, size_t *, CHAR_T **);
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typedef int (*wchar2char_t)
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(SCR *, const CHAR_T *, ssize_t, struct _conv_win *, size_t *, char **);
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struct _conv {
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char2wchar_t sys2int;
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wchar2char_t int2sys;
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char2wchar_t file2int;
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wchar2char_t int2file;
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char2wchar_t input2int;
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iconv_t id[IC_IE_TO_UTF16 + 1];
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};
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