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58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
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/*
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* PROGRAM: InterBase International support
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* MODULE: cs_utffss.c
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* DESCRIPTION: Character set definition for Unicode FSS format
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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/* Note: all routines have cousins in jrd/intl.c */
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typedef USHORT fss_wchar_t;
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typedef SLONG fss_size_t;
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USHORT CS_UTFFSS_fss_to_unicode(CSCONVERT obj, UNICODE *dest_ptr, USHORT dest_len, NCHAR *src_ptr
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, USHORT src_len, SSHORT *err_code, USHORT *err_position);
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USHORT CS_UTFFSS_unicode_to_fss(CSCONVERT obj, MBCHAR *fss_str, USHORT fss_len, UNICODE *unicode_str,
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USHORT unicode_len, SSHORT *err_code, USHORT *err_position);
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SSHORT CS_UTFFSS_fss_mbtowc(TEXTTYPE obj, UCS2_CHAR *wc, NCHAR *p, USHORT n);
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typedef struct {
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int cmask;
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int cval;
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int shift;
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long lmask;
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long lval;
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} Tab;
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static const Tab tab[] = {
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{ 0x80, 0x00, 0 * 6, 0x7F, 0 }, /* 1 byte sequence */
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{ 0xE0, 0xC0, 1 * 6, 0x7FF, 0x80 }, /* 2 byte sequence */
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{ 0xF0, 0xE0, 2 * 6, 0xFFFF, 0x800 }, /* 3 byte sequence */
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{ 0xF8, 0xF0, 3 * 6, 0x1FFFFF, 0x10000 }, /* 4 byte sequence */
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{ 0xFC, 0xF8, 4 * 6, 0x3FFFFFF, 0x200000 }, /* 5 byte sequence */
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{ 0xFE, 0xFC, 5 * 6, 0x7FFFFFFF, 0x4000000 }, /* 6 byte sequence */
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{ 0, 0, 0, 0, 0} /* end of table */
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};
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static fss_size_t fss_mbtowc( fss_wchar_t * p, UCHAR *s, fss_size_t n);
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static fss_size_t fss_wctomb(MBCHAR *s, fss_wchar_t wc);
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