| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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|
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#include <stdlib.h> |
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|
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const int KErrorIllFormedInput=-1; |
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|
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int Utf8ToUnicode(wchar_t* aUnicode, const char* aUtf8) |
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// must '\0'-terminate the output |
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{
|
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wchar_t* startOfUnicode=aUnicode; |
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for (;;) |
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{
|
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unsigned int currentUtf8Byte=*aUtf8; |
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if (currentUtf8Byte=='\0') |
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{
|
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break; |
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} |
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if ((currentUtf8Byte&0x80)==0x00) |
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{
|
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if (startOfUnicode!=NULL) |
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{
|
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*aUnicode=(wchar_t)currentUtf8Byte; |
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} |
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} |
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else if ((currentUtf8Byte&0xe0)==0xc0) |
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{
|
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unsigned int currentUnicodeCharacter=((currentUtf8Byte&0x1f)<<6); |
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++aUtf8; |
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currentUtf8Byte=*aUtf8; |
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if ((currentUtf8Byte&0xc0)!=0x80) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter|=(currentUtf8Byte&0x3f); |
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if (startOfUnicode!=NULL) |
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{
|
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*aUnicode=(wchar_t)currentUnicodeCharacter; |
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} |
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} |
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else if ((currentUtf8Byte&0xf0)==0xe0) |
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{
|
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unsigned int currentUnicodeCharacter=((currentUtf8Byte&0x0f)<<12); |
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++aUtf8; |
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currentUtf8Byte=*aUtf8; |
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if ((currentUtf8Byte&0xc0)!=0x80) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter|=((currentUtf8Byte&0x3f)<<6); |
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++aUtf8; |
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currentUtf8Byte=*aUtf8; |
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if ((currentUtf8Byte&0xc0)!=0x80) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter|=(currentUtf8Byte&0x3f); |
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if (startOfUnicode!=NULL) |
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{
|
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*aUnicode=(wchar_t)currentUnicodeCharacter; |
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} |
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} |
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else if ((currentUtf8Byte&0xf8)==0xf0) |
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{
|
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unsigned int currentUnicodeCharacter=((currentUtf8Byte&0x07)<<8); |
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++aUtf8; |
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currentUtf8Byte=*aUtf8; |
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if ((currentUtf8Byte&0xc0)!=0x80) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter|=((currentUtf8Byte&0x3f)<<2); |
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if (currentUnicodeCharacter<0x0040) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter-=0x0040; |
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if (currentUnicodeCharacter>=0x0400) |
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{
|
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return KErrorIllFormedInput; |
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} |
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++aUtf8; |
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currentUtf8Byte=*aUtf8; |
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if ((currentUtf8Byte&0xc0)!=0x80) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter|=((currentUtf8Byte&0x30)>>4); |
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if (startOfUnicode!=NULL) |
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{
|
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*aUnicode=(wchar_t)(0xd800|currentUnicodeCharacter); |
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} |
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currentUnicodeCharacter=((currentUtf8Byte&0x0f)<<6); |
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++aUtf8; |
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currentUtf8Byte=*aUtf8; |
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if ((currentUtf8Byte&0xc0)!=0x80) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUnicodeCharacter|=(currentUtf8Byte&0x3f); |
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++aUnicode; |
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if (startOfUnicode!=NULL) |
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{
|
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*aUnicode=(wchar_t)(0xdc00|currentUnicodeCharacter); |
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} |
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} |
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else |
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{
|
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return KErrorIllFormedInput; |
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} |
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++aUnicode; |
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++aUtf8; |
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} |
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if (startOfUnicode!=NULL) |
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{
|
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*aUnicode='\0'; |
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} |
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return aUnicode-startOfUnicode; |
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} |
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#include <stdio.h> |
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int UnicodeToUtf8(char* aUtf8, const wchar_t* aUnicode) |
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// must '\0'-terminate the output |
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{
|
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char* startOfUtf8=aUtf8; |
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for (;;) |
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{
|
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unsigned int currentUnicodeCharacter=*aUnicode; |
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if (currentUnicodeCharacter=='\0') |
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{
|
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break; |
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} |
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if ((currentUnicodeCharacter&0xff80)==0x0000) |
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{
|
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)currentUnicodeCharacter; |
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} |
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} |
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else if ((currentUnicodeCharacter&0xf800)==0x0000) |
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{
|
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0xc0|(currentUnicodeCharacter>>6)); |
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} |
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++aUtf8; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0x80|(currentUnicodeCharacter&0x3f)); |
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} |
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} |
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else if ((currentUnicodeCharacter&0xfc00)==0xd800) |
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{
|
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currentUnicodeCharacter+=0x0040; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0xf0|((currentUnicodeCharacter>>8)&0x07)); |
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} |
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++aUtf8; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0x80|((currentUnicodeCharacter>>2)&0x3f)); |
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} |
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{
|
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unsigned int currentUtf8Byte=(0x80|((currentUnicodeCharacter&0x03)<<4)); |
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++aUnicode; |
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currentUnicodeCharacter=*aUnicode; |
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if ((currentUnicodeCharacter&0xfc00)!=0xdc00) |
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{
|
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return KErrorIllFormedInput; |
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} |
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currentUtf8Byte|=((currentUnicodeCharacter>>6)&0x0f); |
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++aUtf8; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)currentUtf8Byte; |
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} |
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} |
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++aUtf8; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0x80|(currentUnicodeCharacter&0x3f)); |
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} |
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} |
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else |
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{
|
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0xe0|(currentUnicodeCharacter>>12)); |
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} |
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++aUtf8; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0x80|((currentUnicodeCharacter>>6)&0x3f)); |
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} |
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++aUtf8; |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8=(char)(0x80|(currentUnicodeCharacter&0x3f)); |
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} |
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} |
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++aUtf8; |
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++aUnicode; |
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} |
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if (startOfUtf8!=NULL) |
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{
|
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*aUtf8='\0'; |
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} |
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return aUtf8-startOfUtf8; |
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} |
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|
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