mirror of
https://github.com/lexborisov/Modest
synced 2024-11-22 13:51:39 +03:00
1245 lines
34 KiB
C
1245 lines
34 KiB
C
/*
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Copyright (C) 2015-2017 Alexander Borisov
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Author: lex.borisov@gmail.com (Alexander Borisov)
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*/
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#include "myencoding/encoding.h"
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#include "myencoding/resource.h"
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#include "mycore/utils/resources.h"
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myencoding_custom_f myencoding_get_function_by_id(myencoding_t idx)
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{
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return myencoding_function_index[idx];
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}
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myencoding_status_t myencoding_decode_utf_8(unsigned const char data, myencoding_result_t *res)
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{
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// res->first -- lower boundary
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// res->second -- upper boundary
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// res->result -- code point
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// res->third -- bytes seen
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// res->flag -- bytes needed
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if(res->flag == 0)
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{
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if(data <= 0x7F) {
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res->result = data;
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return MyENCODING_STATUS_OK;
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}
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else if(data >= 0xC2 && data <= 0xDF) {
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res->flag = 1;
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res->result = data - 0xC0;
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}
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else if(data >= 0xE0 && data <= 0xEF) {
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if(data == 0xE0) {
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res->first = 0xA0;
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}
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else if(data == 0xED){
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res->second = 0x9F;
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}
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res->flag = 2;
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res->result = data - 0xE0;
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}
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else if(data >= 0xF0 && data <= 0xF4) {
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if(data == 0xF0) {
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res->first = 0x90;
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}
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else if(data == 0xF4){
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res->second = 0x8F;
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}
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res->flag = 2;
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res->result = data - 0xF0;
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}
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else
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return MyENCODING_STATUS_ERROR;
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res->result = res->result << (6 * res->flag);
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return MyENCODING_STATUS_CONTINUE;
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}
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if(data < res->first && data > res->second)
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{
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res->result = 0x00;
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res->flag = 0x00;
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res->third = 0x00;
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res->first = 0x80;
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res->second = 0xBF;
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return MyENCODING_STATUS_DONE|MyENCODING_STATUS_ERROR;
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}
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res->first = 0x80;
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res->second = 0xBF;
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res->third++;
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res->result += (unsigned long)(data - 0x80) << (6 * (res->flag - res->third));
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if(res->third != res->flag)
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return MyENCODING_STATUS_CONTINUE;
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res->flag = 0x00;
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res->third = 0x00;
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_ibm866(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_ibm866[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_2(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_2[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_3(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_3[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_4(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_4[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_5(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_5[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_6(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_6[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_7(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_7[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_8(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_8[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_8_i(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_8[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_10(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_10[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_13(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_13[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_14(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_14[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_15(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_15[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_iso_8859_16(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_iso_8859_16[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_koi8_r(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_koi8_r[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_koi8_u(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_koi8_u[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_macintosh(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_macintosh[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_874(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_874[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1250(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1250[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1251(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1251[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1252(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1252[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1253(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1253[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1254(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1254[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1255(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1255[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1256(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1256[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1257(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1257[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_windows_1258(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_windows_1258[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_x_mac_cyrillic(unsigned const char data, myencoding_result_t *res)
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{
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if(data <= 0x7F)
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(res->result = data);
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else
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(res->result = myencoding_map_x_mac_cyrillic[(data - 0x80)]);
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return MyENCODING_STATUS_OK;
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}
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myencoding_status_t myencoding_decode_gbk(unsigned const char data, myencoding_result_t *res)
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{
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return myencoding_decode_gb18030(data, res);
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}
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unsigned long myencoding_index_gb18030_ranges_code_point(unsigned long pointer)
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{
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// step 1
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if((pointer > 39419 && pointer < 189000) || pointer > 1237575)
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return 0;
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// step 2
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if(pointer == 7457)
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return 0xe7c7;
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// step 3
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unsigned long offset = sizeof(myencoding_map_gb18030_ranges) / (sizeof(unsigned long) * 2);
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unsigned long code_point_offset = 0;
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while (offset) {
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offset--;
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if(myencoding_map_gb18030_ranges[offset][0] == pointer ||
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myencoding_map_gb18030_ranges[offset][0] < pointer)
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{
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code_point_offset = myencoding_map_gb18030_ranges[offset][1];
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break;
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}
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}
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// step 4
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return (code_point_offset + pointer - offset);
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}
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myencoding_status_t myencoding_decode_gb18030(unsigned const char data, myencoding_result_t *res)
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{
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if(res->third) {
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if(data >= 0x30 && data <= 0x39) {
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res->result = myencoding_index_gb18030_ranges_code_point((((res->first - 0x81) * 10 + res->second - 0x30) *
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126 + res->third - 0x81) * 10 + data - 0x30);
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}
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res->first = 0;
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res->second = 0;
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res->third = 0;
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if(res->result)
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return MyENCODING_STATUS_OK;
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return MyENCODING_STATUS_ERROR;
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}
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else if(res->second) {
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if(data >= 0x81 && data <= 0xFE) {
|
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res->third = data;
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return MyENCODING_STATUS_CONTINUE;
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}
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res->first = 0;
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res->second = 0;
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return MyENCODING_STATUS_ERROR;
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}
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else if(res->first) {
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if(data >= 0x30 && data <= 0x39) {
|
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res->second = data;
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return MyENCODING_STATUS_CONTINUE;
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}
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unsigned long lead = res->first, pointer = 0x00;
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res->first = 0x00;
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unsigned char offset;
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if(data < 0x7F)
|
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offset = 0x40;
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else
|
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offset = 0x41;
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if((data >= 0x40 && data <= 0x7E) ||
|
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(data >= 0x80 && data <= 0xFE))
|
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{
|
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pointer = (lead - 0x81) * 190 + (data - offset);
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}
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else {
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return MyENCODING_STATUS_ERROR;
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}
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res->result = myencoding_map_gb18030[pointer];
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return MyENCODING_STATUS_OK;
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}
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|
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if(data <= 0x7F) {
|
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res->result = data;
|
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return MyENCODING_STATUS_OK;
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}
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if(data == 0x80) {
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res->result = 0x20ac;
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return MyENCODING_STATUS_OK;
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}
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if(data >= 0x81 && data <= 0xFE) {
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res->first = data;
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return MyENCODING_STATUS_CONTINUE;
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}
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return MyENCODING_STATUS_ERROR;
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}
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myencoding_status_t myencoding_decode_big5(unsigned const char data, myencoding_result_t *res)
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{
|
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if(res->first)
|
|
{
|
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unsigned long lead = res->first;
|
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unsigned long pointer = 0x00;
|
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unsigned long offset;
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|
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res->first = 0x00;
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|
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if(data < 0x7F)
|
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offset = 0x40;
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else
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offset = 0x62;
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if((data >= 0x40 && data <= 0x7E) ||
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(data >= 0xA1 && data <= 0xFE))
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{
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pointer = (lead - 0x81) * 157 + (data - offset);
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}
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|
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switch (pointer) {
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|
case 1133:
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// U+00CA U+0304
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res->result = 0x00ca;
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res->result_aux = 0x0304;
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return MyENCODING_STATUS_OK;
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case 1135:
|
|
// U+00CA U+030C
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res->result = 0x00ca;
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res->result_aux = 0x030c;
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return MyENCODING_STATUS_OK;
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case 1164:
|
|
// U+00EA U+0304
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res->result = 0x00ea;
|
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res->result_aux = 0x0304;
|
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return MyENCODING_STATUS_OK;
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case 1166:
|
|
// U+00EA U+030C
|
|
res->result = 0x00ea;
|
|
res->result_aux = 0x030c;
|
|
return MyENCODING_STATUS_OK;
|
|
default:
|
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break;
|
|
}
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|
|
if(pointer == 0)
|
|
return MyENCODING_STATUS_ERROR;
|
|
|
|
res->result = myencoding_map_big5[pointer];
|
|
res->result_aux = 0;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
if(data <= 0x7F) {
|
|
res->result = data;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
if(data >= 0x81 && data <= 0xFE) {
|
|
res->first = data;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_euc_jp(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
if(res->first == 0x8E && (data >= 0xA1 && data <= 0xDF)) {
|
|
res->first = 0x00;
|
|
res->result = 0xFF61 + data - 0xA1;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
else if(res->first == 0x8F && (data >= 0xA1 && data <= 0xFE)) {
|
|
res->flag = 1;
|
|
res->first = data;
|
|
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
else if(res->first)
|
|
{
|
|
unsigned long lead = res->first;
|
|
res->first = 0x00;
|
|
|
|
if((lead >= 0xA1 && lead <= 0xFE) &&
|
|
(data >= 0xA1 && data <= 0xFE))
|
|
{
|
|
unsigned long idx = (lead - 0xA1) * 94 + data - 0xA1;
|
|
if(res->flag) {
|
|
res->result = myencoding_map_jis0212[idx];
|
|
}
|
|
else {
|
|
res->result = myencoding_map_jis0208[idx];
|
|
}
|
|
|
|
res->flag = 0;
|
|
|
|
if(res->result == 0)
|
|
return MyENCODING_STATUS_ERROR;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
}
|
|
|
|
if(data <= 0x7F) {
|
|
res->result = data;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
if((data >= 0x8E && data <= 0x8F) ||
|
|
(data >= 0xA1 && data <= 0xFE))
|
|
{
|
|
res->first = data;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_iso_2022_jp(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
// res->first -- lead
|
|
// res->second -- state
|
|
// res->third -- output state
|
|
// res->flag -- output flag
|
|
|
|
switch (res->second) {
|
|
case 0: // ASCII
|
|
{
|
|
if(data == 0x1B) {
|
|
res->second = 6;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
else if((data <= 0x7F) &&
|
|
data != 0x0E && data != 0x0F && data != 0x1B)
|
|
{
|
|
res->flag = 0;
|
|
res->result = data;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
res->flag = 0;
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
case 1: // Roman
|
|
{
|
|
if(data == 0x1B) {
|
|
res->second = 6;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
else if(data == 0x5C) {
|
|
res->flag = 0;
|
|
res->result = 0x00A5;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
else if(data == 0x7E) {
|
|
res->flag = 0;
|
|
res->result = 0x203E;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
else if((data <= 0x7F) &&
|
|
data != 0x0E && data != 0x0F &&
|
|
data != 0x1B && data != 0x5C &&
|
|
data != 0x7E)
|
|
{
|
|
res->flag = 0;
|
|
res->result = data;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
res->flag = 0;
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
case 3: // Katakana
|
|
{
|
|
if(data == 0x1B) {
|
|
res->second = 6;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
else if(data >= 0x21 && data <= 0x5F) {
|
|
res->flag = 0;
|
|
res->result = 0xFF61 + data - 0x21;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
res->flag = 0;
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
case 4: // Lead byte
|
|
{
|
|
if(data == 0x1B) {
|
|
res->second = 6;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
else if(data >= 0x21 && data <= 0x7E) {
|
|
res->flag = 0;
|
|
res->first = data;
|
|
res->second = 5;
|
|
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
res->flag = 0;
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
case 5: // Trail byte
|
|
{
|
|
if(data == 0x1B) {
|
|
res->second = 6;
|
|
return MyENCODING_STATUS_CONTINUE|MyENCODING_STATUS_ERROR;
|
|
}
|
|
else if(data >= 0x21 && data <= 0x7E) {
|
|
res->second = 4;
|
|
|
|
unsigned long pointer = (res->first - 0x21) * 94 + data - 0x21;
|
|
res->result = myencoding_map_jis0208[pointer];
|
|
|
|
if(res->result == 0)
|
|
return MyENCODING_STATUS_ERROR;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
res->second = 4;
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
case 6: // Escape start
|
|
{
|
|
if(data == 0x24 || data == 0x28) {
|
|
res->first = data;
|
|
res->second = 7;
|
|
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
res->flag = 0;
|
|
res->second = res->third;
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
case 7: // Escape
|
|
{
|
|
unsigned long lead = res->first;
|
|
res->first = 0x00;
|
|
|
|
res->second = 0x00;
|
|
|
|
if(lead == 0x28 && data == 0x42) {
|
|
res->second = 0;
|
|
}
|
|
else if(lead == 0x28 && data == 0x4A) {
|
|
res->second = 1;
|
|
}
|
|
else if(lead == 0x28 && data == 0x49) {
|
|
res->second = 2;
|
|
}
|
|
else if(lead == 0x24 && (data == 0x40 || data == 0x42)) {
|
|
res->second = 4;
|
|
}
|
|
|
|
if(res->second)
|
|
{
|
|
res->third = res->second;
|
|
|
|
unsigned long output_flag = res->flag;
|
|
res->flag = 1;
|
|
|
|
if(output_flag)
|
|
return MyENCODING_STATUS_ERROR;
|
|
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
res->flag = 0;
|
|
res->second = res->third;
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_shift_jis(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
// res->first -- lead
|
|
|
|
if(res->first)
|
|
{
|
|
unsigned long offset;
|
|
unsigned long lead_offset;
|
|
|
|
if(data < 0x7F)
|
|
offset = 0x40;
|
|
else
|
|
offset = 0x41;
|
|
|
|
if(res->first < 0xA0)
|
|
lead_offset = 0x81;
|
|
else
|
|
lead_offset = 0xC1;
|
|
|
|
unsigned long pointer = 0x00;
|
|
if((data >= 0x40 && data <= 0x7E) ||
|
|
(data >= 0x80 && data <= 0xFC))
|
|
{
|
|
pointer = (res->first - lead_offset) * 188 + data - offset;
|
|
}
|
|
|
|
if(pointer)
|
|
res->result = myencoding_map_jis0208[pointer];
|
|
else
|
|
res->result = 0x00;
|
|
|
|
if(res->result == 0x00 && (pointer >= 8836 && pointer <= 10528)) {
|
|
res->result = 0xE000 + pointer - 8836;
|
|
}
|
|
|
|
if(res->result)
|
|
return MyENCODING_STATUS_OK;
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
if((data <= 0x7F) || data == 0x80) {
|
|
res->result = data;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
if(data >= 0xA1 && data <= 0xDF) {
|
|
res->result = 0xFF61 + data - 0xA1;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
if((data >= 0x81 && data <= 0x9F) ||
|
|
(data >= 0xE0 && data <= 0xFC)) {
|
|
res->first = data;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_euc_kr(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
// res->first -- lead
|
|
|
|
if(res->first)
|
|
{
|
|
unsigned long lead = res->first, pointer = 0x00;
|
|
res->first = 0x00;
|
|
|
|
if(data >= 0x41 && data <= 0xFE) {
|
|
pointer = (lead - 0x81) * 190 + (data - 0x41);
|
|
}
|
|
|
|
if(pointer)
|
|
res->result = myencoding_map_euc_kr[pointer];
|
|
|
|
if(res->result)
|
|
return MyENCODING_STATUS_OK;
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
if(data <= 0x7F) {
|
|
res->result = data;
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
if(data >= 0x81 && data <= 0xFE) {
|
|
res->first = data;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_shared_utf_16(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
// res->first -- lead
|
|
// res->second -- lead surrogate
|
|
// res->flag -- flag
|
|
|
|
if(res->first == 0x00) {
|
|
res->first = data;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
unsigned long code_unit;
|
|
if(res->flag)
|
|
(code_unit = (res->first << 8) + data);
|
|
else
|
|
(code_unit = (unsigned long)(data << 8) + res->first);
|
|
|
|
res->first = 0x00;
|
|
|
|
if(res->second) {
|
|
unsigned long lead_surrogate = res->second;
|
|
res->second = 0x00;
|
|
|
|
if(code_unit >= 0xDC00 && code_unit <= 0xDFFF) {
|
|
res->result = 0x10000 + ((lead_surrogate - 0xD800) << 10) + (code_unit - 0xDC00);
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
unsigned char byte1 = (unsigned char)(code_unit >> 8);
|
|
unsigned char byte2 = (unsigned char)(code_unit & 0x00FF);
|
|
|
|
if(res->flag) {
|
|
res->result = byte1;
|
|
res->result_aux = byte2;
|
|
}
|
|
else {
|
|
res->result = byte2;
|
|
res->result_aux = byte1;
|
|
}
|
|
|
|
return MyENCODING_STATUS_DONE|MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
if(code_unit >= 0xD800 && code_unit <= 0xDBFF) {
|
|
res->second = code_unit;
|
|
return MyENCODING_STATUS_CONTINUE;
|
|
}
|
|
|
|
if(code_unit >= 0xDC00 && code_unit <= 0xDFFF) {
|
|
return MyENCODING_STATUS_ERROR;
|
|
}
|
|
|
|
res->result = code_unit;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_utf_16be(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
if(res->flag == 0)
|
|
res->flag = 1;
|
|
|
|
return myencoding_decode_shared_utf_16(data, res);
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_utf_16le(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
if(res->flag)
|
|
res->flag = 0;
|
|
|
|
return myencoding_decode_shared_utf_16(data, res);
|
|
}
|
|
|
|
myencoding_status_t myencoding_decode_x_user_defined(unsigned const char data, myencoding_result_t *res)
|
|
{
|
|
if(data <= 0x7F)
|
|
res->result = data;
|
|
else
|
|
res->result = 0xF780 + data - 0x80;
|
|
|
|
return MyENCODING_STATUS_OK;
|
|
}
|
|
|
|
void myencoding_result_clean(myencoding_result_t *res)
|
|
{
|
|
memset(res, 0, sizeof(myencoding_result_t));
|
|
}
|
|
|
|
size_t myencoding_codepoint_ascii_length(size_t codepoint)
|
|
{
|
|
if (codepoint <= 0x0000007F) {
|
|
return 1;
|
|
}
|
|
else if (codepoint <= 0x000007FF) {
|
|
return 2;
|
|
}
|
|
else if (codepoint <= 0x0000FFFF) {
|
|
return 3;
|
|
}
|
|
else if (codepoint <= 0x001FFFFF) {
|
|
return 4;
|
|
}
|
|
/* not uses in unicode */
|
|
else if (codepoint <= 0x03FFFFFF) {
|
|
return 5;
|
|
}
|
|
else if (codepoint <= 0x7FFFFFFF) {
|
|
return 6;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
size_t myencoding_ascii_utf_8_length(const unsigned char data)
|
|
{
|
|
if (data < 0x80){
|
|
return 1;
|
|
}
|
|
else if ((data & 0xe0) == 0xc0) {
|
|
return 2;
|
|
}
|
|
else if ((data & 0xf0) == 0xe0) {
|
|
return 3;
|
|
}
|
|
else if ((data & 0xf8) == 0xf0) {
|
|
return 4;
|
|
}
|
|
else if ((data & 0xfc) == 0xf8) {
|
|
return 5;
|
|
}
|
|
else if ((data & 0xff) == 0xfc) {
|
|
return 6;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
size_t myencoding_codepoint_to_ascii_utf_8(size_t codepoint, char *data)
|
|
{
|
|
/* 0x80 -- 10xxxxxx */
|
|
/* 0xC0 -- 110xxxxx */
|
|
/* 0xE0 -- 1110xxxx */
|
|
/* 0xF0 -- 11110xxx */
|
|
/* 0xF8 -- 111110xx */
|
|
/* 0xFC -- 1111110x */
|
|
|
|
if (codepoint <= 0x0000007F) {
|
|
/* 0xxxxxxx */
|
|
data[0] = (char)codepoint;
|
|
return 1;
|
|
}
|
|
else if (codepoint <= 0x000007FF) {
|
|
/* 110xxxxx 10xxxxxx */
|
|
data[0] = (char)(0xC0 | (codepoint >> 6 ));
|
|
data[1] = (char)(0x80 | (codepoint & 0x3F));
|
|
|
|
return 2;
|
|
}
|
|
else if (codepoint <= 0x0000FFFF) {
|
|
/* 1110xxxx 10xxxxxx 10xxxxxx */
|
|
data[0] = (char)(0xE0 | ((codepoint >> 12)));
|
|
data[1] = (char)(0x80 | ((codepoint >> 6 ) & 0x3F));
|
|
data[2] = (char)(0x80 | ( codepoint & 0x3F));
|
|
|
|
return 3;
|
|
}
|
|
else if (codepoint <= 0x001FFFFF) {
|
|
/* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
data[0] = (char)(0xF0 | ( codepoint >> 18));
|
|
data[1] = (char)(0x80 | ((codepoint >> 12) & 0x3F));
|
|
data[2] = (char)(0x80 | ((codepoint >> 6 ) & 0x3F));
|
|
data[3] = (char)(0x80 | ( codepoint & 0x3F));
|
|
|
|
return 4;
|
|
}
|
|
/* not uses in unicode */
|
|
// else if (codepoint <= 0x03FFFFFF) {
|
|
// /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
// data[0] = 0xF8 | ( codepoint >> 24);
|
|
// data[1] = 0x80 | ((codepoint >> 18) & 0x3F);
|
|
// data[2] = 0x80 | ((codepoint >> 12) & 0x3F);
|
|
// data[3] = 0x80 | ((codepoint >> 6 ) & 0x3F);
|
|
// data[4] = 0x80 | ( codepoint & 0x3F);
|
|
//
|
|
// return 5;
|
|
// }
|
|
// else if (codepoint <= 0x7FFFFFFF) {
|
|
// /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
// data[0] = 0xFC | ( codepoint >> 30);
|
|
// data[1] = 0x80 | ((codepoint >> 24) & 0x3F);
|
|
// data[2] = 0x80 | ((codepoint >> 18) & 0x3F);
|
|
// data[3] = 0x80 | ((codepoint >> 12) & 0x3F);
|
|
// data[4] = 0x80 | ((codepoint >> 6 ) & 0x3F);
|
|
// data[5] = 0x80 | ( codepoint & 0x3F);
|
|
//
|
|
// return 6;
|
|
// }
|
|
|
|
return 0;
|
|
}
|
|
|
|
size_t myencoding_codepoint_to_lowercase_ascii_utf_8(size_t codepoint, char *data)
|
|
{
|
|
/* 0x80 -- 10xxxxxx */
|
|
/* 0xC0 -- 110xxxxx */
|
|
/* 0xE0 -- 1110xxxx */
|
|
/* 0xF0 -- 11110xxx */
|
|
/* 0xF8 -- 111110xx */
|
|
/* 0xFC -- 1111110x */
|
|
|
|
if (codepoint <= 0x0000007F) {
|
|
/* 0xxxxxxx */
|
|
data[0] = (char)mycore_string_chars_lowercase_map[ codepoint ];
|
|
return 1;
|
|
}
|
|
else if (codepoint <= 0x000007FF) {
|
|
/* 110xxxxx 10xxxxxx */
|
|
data[0] = (char)(0xC0 | (codepoint >> 6 ));
|
|
data[1] = (char)(0x80 | (codepoint & 0x3F));
|
|
|
|
return 2;
|
|
}
|
|
else if (codepoint <= 0x0000FFFF) {
|
|
/* 1110xxxx 10xxxxxx 10xxxxxx */
|
|
data[0] = (char)(0xE0 | ((codepoint >> 12)));
|
|
data[1] = (char)(0x80 | ((codepoint >> 6 ) & 0x3F));
|
|
data[2] = (char)(0x80 | ( codepoint & 0x3F));
|
|
|
|
return 3;
|
|
}
|
|
else if (codepoint <= 0x001FFFFF) {
|
|
/* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
data[0] = (char)(0xF0 | ( codepoint >> 18));
|
|
data[1] = (char)(0x80 | ((codepoint >> 12) & 0x3F));
|
|
data[2] = (char)(0x80 | ((codepoint >> 6 ) & 0x3F));
|
|
data[3] = (char)(0x80 | ( codepoint & 0x3F));
|
|
|
|
return 4;
|
|
}
|
|
/* not uses in unicode */
|
|
// else if (codepoint <= 0x03FFFFFF) {
|
|
// /* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
// data[0] = 0xF8 | ( codepoint >> 24);
|
|
// data[1] = 0x80 | ((codepoint >> 18) & 0x3F);
|
|
// data[2] = 0x80 | ((codepoint >> 12) & 0x3F);
|
|
// data[3] = 0x80 | ((codepoint >> 6 ) & 0x3F);
|
|
// data[4] = 0x80 | ( codepoint & 0x3F);
|
|
//
|
|
// return 5;
|
|
// }
|
|
// else if (codepoint <= 0x7FFFFFFF) {
|
|
// /* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
// data[0] = 0xFC | ( codepoint >> 30);
|
|
// data[1] = 0x80 | ((codepoint >> 24) & 0x3F);
|
|
// data[2] = 0x80 | ((codepoint >> 18) & 0x3F);
|
|
// data[3] = 0x80 | ((codepoint >> 12) & 0x3F);
|
|
// data[4] = 0x80 | ((codepoint >> 6 ) & 0x3F);
|
|
// data[5] = 0x80 | ( codepoint & 0x3F);
|
|
//
|
|
// return 6;
|
|
// }
|
|
|
|
return 0;
|
|
}
|
|
|
|
size_t myencoding_ascii_utf_8_to_codepoint(const unsigned char* data, size_t* codepoint)
|
|
{
|
|
if (*data < 0x80){
|
|
/* 0xxxxxxx */
|
|
*codepoint = (size_t)*data;
|
|
return 1;
|
|
}
|
|
else if ((*data & 0xe0) == 0xc0) {
|
|
/* 110xxxxx 10xxxxxx */
|
|
*codepoint = (data[0] ^ (0xC0 & data[0])) << 6;
|
|
*codepoint |= (data[1] ^ (0x80 & data[1]));
|
|
|
|
return 2;
|
|
}
|
|
else if ((*data & 0xf0) == 0xe0) {
|
|
/* 1110xxxx 10xxxxxx 10xxxxxx */
|
|
*codepoint = (data[0] ^ (0xE0 & data[0])) << 12;
|
|
*codepoint |= (data[1] ^ (0x80 & data[1])) << 6;
|
|
*codepoint |= (data[2] ^ (0x80 & data[2]));
|
|
|
|
return 3;
|
|
}
|
|
else if ((*data & 0xf8) == 0xf0) {
|
|
/* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
|
|
*codepoint = (data[0] ^ (0xF0 & data[0])) << 18;
|
|
*codepoint |= (data[1] ^ (0x80 & data[1])) << 12;
|
|
*codepoint |= (data[2] ^ (0x80 & data[2])) << 6;
|
|
*codepoint |= (data[3] ^ (0x80 & data[3]));
|
|
|
|
return 4;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
size_t myencoding_codepoint_to_ascii_utf_16(size_t codepoint, char *data)
|
|
{
|
|
if((codepoint >> 16)) {
|
|
codepoint -= 0x10000;
|
|
|
|
size_t high = 0xD800 | (codepoint >> 10);
|
|
size_t low = 0xDC00 | (codepoint & 0x3FF);
|
|
|
|
data[0] = (char)(high >> 8);
|
|
data[1] = (char)high;
|
|
data[2] = (char)(low >> 8);
|
|
data[3] = (char)low;
|
|
|
|
return 4;
|
|
}
|
|
|
|
data[0] = (char)(codepoint >> 8);
|
|
data[1] = (char)codepoint;
|
|
|
|
return 2;
|
|
}
|
|
|
|
size_t myencoding_convert_to_ascii_utf_8(mycore_string_raw_t* raw_str, const char* buff, size_t length, myencoding_t encoding)
|
|
{
|
|
if(raw_str->data == NULL) {
|
|
raw_str->size = length + 1;
|
|
raw_str->length = 0;
|
|
raw_str->data = mycore_malloc(sizeof(char) * raw_str->size);
|
|
|
|
if(raw_str->data == NULL)
|
|
return 0;
|
|
}
|
|
|
|
myencoding_result_t res = {0};
|
|
|
|
unsigned const char* u_buff = (unsigned const char*)buff;
|
|
const myencoding_custom_f func = myencoding_get_function_by_id(encoding);
|
|
|
|
size_t i;
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
if(func(u_buff[i], &res) == MyENCODING_STATUS_OK) {
|
|
if((raw_str->length + 6) >= raw_str->size) {
|
|
size_t new_size = raw_str->length + 6 + (length / 2);
|
|
char *new_data = mycore_realloc(raw_str->data, sizeof(char) * new_size);
|
|
|
|
if(new_data == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
raw_str->data = new_data;
|
|
raw_str->size = new_size;
|
|
}
|
|
|
|
raw_str->length += myencoding_codepoint_to_ascii_utf_8(res.result, &raw_str->data[raw_str->length]);
|
|
}
|
|
}
|
|
|
|
return i;
|
|
}
|
|
|
|
|