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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_i18npool.hxx"
#include <assert.h>
#include <textconversion.hxx>
#include <com/sun/star/i18n/TextConversionType.hpp>
#include <com/sun/star/i18n/TextConversionOption.hpp>
#include <com/sun/star/linguistic2/ConversionDirection.hpp>
#include <com/sun/star/linguistic2/ConversionDictionaryType.hpp>
#include <rtl/ustrbuf.hxx>
#include <i18nutil/x_rtl_ustring.h>
#include <unicode/uchar.h>
using namespace com::sun::star::lang;
using namespace com::sun::star::i18n;
using namespace com::sun::star::linguistic2;
using namespace com::sun::star::uno;
using namespace rtl;
namespace com { namespace sun { namespace star { namespace i18n {
#define SCRIPT_OTHERS 0
#define SCRIPT_HANJA 1
#define SCRIPT_HANGUL 2
TextConversion_ko::TextConversion_ko( const Reference < XMultiServiceFactory >& xMSF )
{
Reference < XInterface > xI;
xI = xMSF->createInstance(
OUString::createFromAscii("com.sun.star.i18n.ConversionDictionary_ko"));
if ( xI.is() )
xI->queryInterface( getCppuType((const Reference< XConversionDictionary>*)0) ) >>= xCD;
xI = xMSF->createInstance(
OUString::createFromAscii( "com.sun.star.linguistic2.ConversionDictionaryList" ));
if ( xI.is() )
xI->queryInterface( getCppuType((const Reference< XConversionDictionaryList>*)0) ) >>= xCDL;
maxLeftLength = maxRightLength = 1;
// get maximum length of word in dictionary
if (xCDL.is()) {
Locale loc(OUString::createFromAscii("ko"),
OUString::createFromAscii("KR"),
OUString());
maxLeftLength = xCDL->queryMaxCharCount(loc,
ConversionDictionaryType::HANGUL_HANJA,
ConversionDirection_FROM_LEFT);
maxRightLength = xCDL->queryMaxCharCount(loc,
ConversionDictionaryType::HANGUL_HANJA,
ConversionDirection_FROM_RIGHT);
if (xCD.is()) {
sal_Int32 tmp = xCD->getMaxCharCount(ConversionDirection_FROM_LEFT);
if (tmp > maxLeftLength)
maxLeftLength = tmp;
tmp = xCD->getMaxCharCount(ConversionDirection_FROM_RIGHT);
if (tmp > maxRightLength)
maxRightLength = tmp;
}
} else if (xCD.is()) {
maxLeftLength = xCD->getMaxCharCount(ConversionDirection_FROM_LEFT);
maxRightLength = xCD->getMaxCharCount(ConversionDirection_FROM_RIGHT);
}
implementationName = "com.sun.star.i18n.TextConversion_ko";
}
sal_Int16 SAL_CALL checkScriptType(sal_Unicode c)
{
typedef struct {
UBlockCode from;
UBlockCode to;
sal_Int16 script;
} UBlock2Script;
static UBlock2Script scriptList[] = {
{UBLOCK_HANGUL_JAMO, UBLOCK_HANGUL_JAMO, SCRIPT_HANGUL},
{UBLOCK_CJK_RADICALS_SUPPLEMENT, UBLOCK_BOPOMOFO, SCRIPT_HANJA},
{UBLOCK_HANGUL_COMPATIBILITY_JAMO, UBLOCK_HANGUL_COMPATIBILITY_JAMO, SCRIPT_HANGUL},
{UBLOCK_KANBUN, UBLOCK_YI_RADICALS, SCRIPT_HANJA},
{UBLOCK_HANGUL_SYLLABLES, UBLOCK_HANGUL_SYLLABLES, SCRIPT_HANGUL},
{UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS, UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS, SCRIPT_HANJA},
{UBLOCK_COMBINING_HALF_MARKS, UBLOCK_SMALL_FORM_VARIANTS, SCRIPT_HANJA},
{UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS, UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS, SCRIPT_HANJA},
};
#define scriptListCount sizeof (scriptList) / sizeof (UBlock2Script)
UBlockCode block=ublock_getCode((sal_uInt32) c);
sal_uInt16 i;
for ( i = 0; i < scriptListCount; i++) {
if (block <= scriptList[i].to) break;
}
return (i < scriptListCount && block >= scriptList[i].from) ? scriptList[i].script : SCRIPT_OTHERS;
}
Sequence< OUString > SAL_CALL
TextConversion_ko::getCharConversions(const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength, sal_Bool toHanja)
{
sal_Unicode ch;
Sequence< OUString > output;
const sal_Unicode* (*getHangul2HanjaData)() = (const sal_Unicode* (*)())getFunctionBySymbol("getHangul2HanjaData");
const Hangul_Index* (*getHangul2HanjaIndex)() = (const Hangul_Index* (*)()) getFunctionBySymbol("getHangul2HanjaIndex");
sal_Int16 (*getHangul2HanjaIndexCount)() = (sal_Int16 (*)()) getFunctionBySymbol("getHangul2HanjaIndexCount");
const sal_uInt16* (*getHanja2HangulIndex)() = (const sal_uInt16* (*)()) getFunctionBySymbol("getHanja2HangulIndex");
const sal_Unicode* (*getHanja2HangulData)() = (const sal_Unicode* (*)()) getFunctionBySymbol("getHanja2HangulData");
if (toHanja && getHangul2HanjaIndex && getHangul2HanjaIndexCount && getHangul2HanjaData) {
ch = aText[nStartPos];
const Hangul_Index *Hangul_ko = getHangul2HanjaIndex();
sal_Int16 top = getHangul2HanjaIndexCount();
--top;
sal_Int16 bottom = 0;
while (bottom <= top) {
sal_Int16 current = (top + bottom) / 2;
sal_Unicode current_ch = Hangul_ko[current].code;
if (ch < current_ch)
top = current - 1;
else if (ch > current_ch)
bottom = current + 1;
else {
const sal_Unicode *ptr = getHangul2HanjaData() + Hangul_ko[current].address;
sal_Int16 count = Hangul_ko[current].count;
output.realloc(count);
for (sal_Int16 i = 0; i < count; i++)
output[i] = OUString(ptr + i, 1);
break;
}
}
} else if (! toHanja && getHanja2HangulIndex && getHanja2HangulData) {
rtl_uString * newStr = x_rtl_uString_new_WithLength( nLength ); // defined in x_rtl_ustring.h
sal_Int32 count = 0;
while (count < nLength) {
ch = aText[nStartPos + count];
sal_Unicode address = getHanja2HangulIndex()[ch>>8];
if (address != 0xFFFF)
address = getHanja2HangulData()[address + (ch & 0xFF)];
if (address != 0xFFFF)
newStr->buffer[count++] = address;
else
break;
}
if (count > 0) {
output.realloc(1);
output[0] = OUString( newStr->buffer, count);
}
}
return output;
}
static Sequence< OUString >& operator += (Sequence< OUString > &rSeq1, Sequence< OUString > &rSeq2 )
{
if (! rSeq1.hasElements() && rSeq2.hasElements())
rSeq1 = rSeq2;
else if (rSeq2.hasElements()) {
sal_Int32 i, j, k, l;
k = l = rSeq1.getLength();
rSeq1.realloc(l + rSeq2.getLength());
for (i = 0; i < rSeq2.getLength(); i++) {
for (j = 0; j < l; j++)
if (rSeq1[j] == rSeq2[i])
break;
if (j == l)
rSeq1[k++] = rSeq2[i];
}
if (rSeq1.getLength() > k)
rSeq1.realloc(k);
}
return rSeq1;
}
TextConversionResult SAL_CALL
TextConversion_ko::getConversions( const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength,
const Locale& aLocale, sal_Int16 nConversionType, sal_Int32 nConversionOptions)
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
TextConversionResult result;
Sequence <OUString> candidates;
result.Boundary.startPos = result.Boundary.endPos = 0;
// do conversion only when there are right conversion type and dictionary services.
if (nConversionType == TextConversionType::TO_HANGUL ||
nConversionType == TextConversionType::TO_HANJA) {
sal_Int32 start, end, length = aText.getLength() - nStartPos;
if (length < 0 || nStartPos < 0)
length = 0;
else if (length > nLength)
length = nLength;
sal_Int16 scriptType = SCRIPT_OTHERS;
sal_Int32 len = 1;
sal_Bool toHanja = (nConversionType == TextConversionType::TO_HANJA);
// FROM_LEFT: Hangul -> Hanja
// FROM_RIGHT: Hanja -> Hangul
ConversionDirection eDirection = toHanja ? ConversionDirection_FROM_LEFT : ConversionDirection_FROM_RIGHT;
sal_Int32 maxLength = toHanja ? maxLeftLength : maxRightLength;
if (maxLength == 0) maxLength = 1;
// search for a max length of convertible text
for (start = 0, end = 0; start < length; start++) {
if (end <= start) {
scriptType = checkScriptType(aText[nStartPos + start]);
if (nConversionType == TextConversionType::TO_HANJA) {
if (scriptType != SCRIPT_HANGUL) // skip non-Hangul characters
continue;
} else {
if (scriptType != SCRIPT_HANJA) // skip non-Hanja characters
continue;
}
end = start + 1;
}
if (nConversionOptions & TextConversionOption::CHARACTER_BY_CHARACTER) {
result.Candidates = getCharConversions(aText, nStartPos + start, len, toHanja); // char2char conversion
} else {
for (; end < length && end - start < maxLength; end++)
if (checkScriptType(aText[nStartPos + end]) != scriptType)
break;
for (len = end - start; len > 0; len--) {
if (len > 1) {
try {
if (xCDL.is())
result.Candidates = xCDL->queryConversions(aText, start + nStartPos, len,
aLocale, ConversionDictionaryType::HANGUL_HANJA, eDirection, nConversionOptions); // user dictionary
}
catch ( NoSupportException & ) {
// clear reference (when there is no user dictionary) in order
// to not always have to catch this exception again
// in further calls. (save time)
xCDL = 0;
}
catch (...) {
// catch all other exceptions to allow
// querying the system dictionary in the next line
}
if (xCD.is() && toHanja) { // System dictionary would not do Hanja_to_Hangul conversion.
candidates = xCD->getConversions(aText, start + nStartPos, len, eDirection, nConversionOptions);
result.Candidates += candidates;
}
} else if (! toHanja) { // do whole word character 2 character conversion for Hanja to Hangul conversion
result.Candidates = getCharConversions(aText, nStartPos + start, length - start, toHanja);
if (result.Candidates.hasElements())
len = result.Candidates[0].getLength();
}
if (result.Candidates.hasElements())
break;
}
}
// found match
if (result.Candidates.hasElements()) {
result.Boundary.startPos = start + nStartPos;;
result.Boundary.endPos = start + len + nStartPos;
return result;
}
}
} else
throw NoSupportException(); // Conversion type is not supported in this service.
return result;
}
OUString SAL_CALL
TextConversion_ko::getConversion( const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength,
const Locale& aLocale, sal_Int16 nConversionType, sal_Int32 nConversionOptions)
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
sal_Int32 length = aText.getLength() - nStartPos;
if (length <= 0 || nStartPos < 0)
return OUString();
else if (length > nLength)
length = nLength;
OUStringBuffer aBuf(length + 1);
TextConversionResult result;
const sal_Unicode *str = aText.getStr();
for (sal_Int32 start = nStartPos; length + nStartPos > start; start = result.Boundary.endPos) {
result = getConversions(aText, start, length + nStartPos - start, aLocale, nConversionType, nConversionOptions);
if (result.Boundary.endPos > 0) {
if (result.Boundary.startPos > start)
aBuf.append(str + start, result.Boundary.startPos - start); // append skip portion
aBuf.append(result.Candidates[0]); // append converted portion
} else {
if (length + nStartPos > start)
aBuf.append(str + start, length + nStartPos - start); // append last portion
break;
}
}
return aBuf.makeStringAndClear();
}
OUString SAL_CALL
TextConversion_ko::getConversionWithOffset( const OUString& aText, sal_Int32 nStartPos, sal_Int32 nLength,
const Locale& rLocale, sal_Int16 nConversionType, sal_Int32 nConversionOptions, Sequence<sal_Int32>& offset)
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
offset.realloc(0);
return getConversion(aText, nStartPos, nLength, rLocale, nConversionType, nConversionOptions);
}
sal_Bool SAL_CALL
TextConversion_ko::interactiveConversion( const Locale& /*rLocale*/, sal_Int16 /*nTextConversionType*/, sal_Int32 /*nTextConversionOptions*/ )
throw( RuntimeException, IllegalArgumentException, NoSupportException )
{
return sal_True;
}
} } } }