| /**********************************************************************
|
| // @@@ START COPYRIGHT @@@ |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| // |
| // @@@ END COPYRIGHT @@@ |
| **********************************************************************/
|
| /*
|
| * HISTORY
|
| * $Log: from_GB2312.c,v $
|
| * Revision 1.1.10.1 2001/12/07 15:37:39
|
| * * Check for UDC & add __UDC_to_gb2312().
|
| *
|
| * Revision 1.1.6.1 2000/01/13 20:25:30
|
| * Remove the old conversion routine in favor of the enhanced
|
| * __<codeset>_index() routine, and add algorithmic UDC conversion
|
| * support. Also add a number of conversion routines to support
|
| * special font charset to Unicode conversion.
|
| *
|
| * Revision 1.1.4.1 1999/09/28 21:10:10
|
| * Cosixsteelos to zincos merge.
|
| *
|
| * Revision 1.1.2.2 1999/08/18 18:36:08
|
| * Add support for Unicode to GBK/GB2312 conversion.
|
| * [1999/08/18 15:04:43 Long_Man]
|
| *
|
| * $EndLog$
|
| */
|
|
|
| /*
|
| * COPYRIGHT NOTICE
|
| *
|
| * Copyright (c) 1990, 1991, 1992, 1993 Open Software Foundation, Inc.
|
| * ALL RIGHTS RESERVED (OSF/1). See /usr/include/COPYRIGHT.OSF1 .
|
| */
|
|
|
| #include "fcconv.h"
|
| #include "multi-byte.h"
|
|
|
| /*
|
| * This routine converts one GB2312 character from the input stream to table
|
| * index.
|
| *
|
| * Return Value:
|
| * Table index if no error
|
| * -1 - Invalid sequence (EILSEQ)
|
| * -2 - Input incomplete
|
| */
|
| #if 0 // Don't need these since we chose to support GBK (a superset of GB2312) instead
|
| NA_EIDPROC
|
| int
|
| __gb2312_index(_LC_fcconv_iconv_t *cd, uchar_t **in, int len)
|
| {
|
| uint ch1, ch2 ;
|
| uchar *ip = *in ;
|
|
|
| if (len < 2)
|
| return(ERR_INPUT_INCOMPLETE) ;
|
|
|
| ch1 = *ip++ ;
|
| ch2 = *ip++ ;
|
|
|
| if (!GB2312_VALID1(ch1) || !GB2312_VALID2(ch2))
|
| return(ERR_INVALID_CHAR) ;
|
|
|
| *in = ip ; /* Adjust input pointer */
|
| return((GB2312_UDC11(ch1, ch2) || GB2312_UDC12(ch1, ch2))
|
| ? GB2312_IDXU(ch1, ch2) : GB2312_IDX(ch1, ch2)) ;
|
| }
|
|
|
| /*
|
| * This routine convert a GB2312-GL character to table index
|
| */
|
| NA_EIDPROC
|
| int
|
| __gb2312gl_index(_LC_fcconv_iconv_t *cd, uchar_t **in, int len)
|
| {
|
| uint ch1, ch2 ;
|
| uchar *ip = *in ;
|
|
|
| if (len < 2)
|
| return(ERR_INPUT_INCOMPLETE) ;
|
|
|
| ch1 = *ip++ ;
|
| ch2 = *ip++ ;
|
|
|
| if ((ch1 >= 0x80) || (ch2 >= 0x80))
|
| return(ERR_INVALID_CHAR) ;
|
| ch1 |= 0x80 ;
|
| ch2 |= 0x80 ;
|
|
|
| if (!GB2312_VALID1(ch1) || !GB2312_VALID2(ch2))
|
| return(ERR_INVALID_CHAR) ;
|
|
|
| *in = ip ; /* Adjust input pointer */
|
| return(GB2312_IDX(ch1, ch2)) ;
|
| }
|
|
|
| /*
|
| * This routine maps the UCS UDC codepoint to GB2312
|
| */
|
| NA_EIDPROC
|
| WChar_t __UDC_to_gb2312(ucs4_t udc) //JAC
|
| {
|
| if (udc <= UCS_UDC_START + GB2312_UCNT) {
|
| int uidx = UCS_UIDX(udc) ;
|
| return(UIDX_GB2312(uidx)) ;
|
| }
|
| /* Lookup table for mapping for BMP UDC */
|
| return((udc <= UCS_UDC_END) ? 0 : BAD) ;
|
| }
|
|
|
| /*---------------------------------------------------------------------------*/
|
|
|
| /*
|
| * This routine performs the conversion from a GB2312 code to GB2312-GL
|
| * code.
|
| */
|
| NA_EIDPROC
|
| int
|
| __gb2312_to_gb2312gl(WChar_t code) //JAC
|
| {
|
| if (code > 0xff)
|
| return(code & 0x7f7f) ;
|
| return(BAD) ;
|
| }
|
|
|
| /*
|
| * This routine performs the conversion from a GB2312 code to GB2312-GR
|
| * code.
|
| */
|
| NA_EIDPROC
|
| int
|
| __gb2312_to_gb2312gr(WChar_t code) //JAC
|
| {
|
| if (code > 0xff)
|
| return(code) ;
|
| return(BAD) ;
|
| }
|
| #endif // Don't need these since we chose to support GBK (a superset of GB2312) instead
|
