// -----------------------------------------------------------------------------
// JPLangUtil::ConvertFullHiragnaToFullKatakana
// Converts Full-width Hiragana and Special Character text found in
// aUnicodeSource to their Full-width counterparts and places the
// resulting text into aUnicodeTarget.
// -----------------------------------------------------------------------------
//
EXPORT_C TInt JPLangUtil::ConvertFullHiragnaToFullKatakana
( const TDesC16& aUnicodeSource, TDes16& aUnicodeTarget )
{
TInt totalConverted( 0 );
const TInt length( aUnicodeSource.Length() );
const TInt maxLength( aUnicodeTarget.MaxLength() );
if( length > maxLength )
{
return KErrTooBig;
}
const TUint comp = KFullWidthKatakanaSmallA - KFullWidthHiraganaSmallA;
aUnicodeTarget.Zero();
for( TInt i( 0 ); i < length; ++i )
{
const TText uniChar( aUnicodeSource[i] );
TText uniChar2(0);
if (i + 1 < length)
{
uniChar2 = aUnicodeSource[i+1];
}
// First check if this is this Full Width Katakana
if (KFullWidthHiraganaSmallA <= uniChar && uniChar <= KFullWidthHiraganaVU)
{
if (uniChar == KFullWidthHiraganaU
&& uniChar2 == KFullWidthHiraganaVoicedSound)
{
aUnicodeTarget.Append(KFullWidthKatakanaSmallVU);
totalConverted++;
i++;
}
else
{
TUint katakana = uniChar + comp;
if (IsKatakana(katakana))
{
aUnicodeTarget.Append(katakana);
totalConverted++;
}
}
}
else
{
aUnicodeTarget.Append(uniChar);
totalConverted++;
}
}
// Now handle special characters
// This logic may be moved into this function to avoid another loop over
// the text
totalConverted +=
UnicodeTextUtil::ConvertSpecialCharactersInPlace( EFullToHalfWidth,
aUnicodeTarget );
return totalConverted;
}
int IsJap(wchar_t c)
{
return (IsHiragana(c) || IsKatakana(c) || IsKanji(c) || IsHalfWidthKatakana(c));
}