void TestHasScript() {
if(!(
!uscript_hasScript(0x063f, USCRIPT_COMMON) &&
uscript_hasScript(0x063f, USCRIPT_ARABIC) && /* main Script value */
!uscript_hasScript(0x063f, USCRIPT_SYRIAC) &&
!uscript_hasScript(0x063f, USCRIPT_THAANA))
) {
log_err("uscript_hasScript(U+063F, ...) is wrong\n");
}
if(!(
!uscript_hasScript(0x0640, USCRIPT_COMMON) && /* main Script value */
uscript_hasScript(0x0640, USCRIPT_ARABIC) &&
uscript_hasScript(0x0640, USCRIPT_SYRIAC) &&
!uscript_hasScript(0x0640, USCRIPT_THAANA))
) {
log_err("uscript_hasScript(U+0640, ...) is wrong\n");
}
if(!(
!uscript_hasScript(0x0650, USCRIPT_INHERITED) && /* main Script value */
uscript_hasScript(0x0650, USCRIPT_ARABIC) &&
uscript_hasScript(0x0650, USCRIPT_SYRIAC) &&
!uscript_hasScript(0x0650, USCRIPT_THAANA))
) {
log_err("uscript_hasScript(U+0650, ...) is wrong\n");
}
if(!(
!uscript_hasScript(0x0660, USCRIPT_COMMON) && /* main Script value */
uscript_hasScript(0x0660, USCRIPT_ARABIC) &&
!uscript_hasScript(0x0660, USCRIPT_SYRIAC) &&
uscript_hasScript(0x0660, USCRIPT_THAANA))
) {
log_err("uscript_hasScript(U+0660, ...) is wrong\n");
}
if(!(
!uscript_hasScript(0xfdf2, USCRIPT_COMMON) &&
uscript_hasScript(0xfdf2, USCRIPT_ARABIC) && /* main Script value */
!uscript_hasScript(0xfdf2, USCRIPT_SYRIAC) &&
uscript_hasScript(0xfdf2, USCRIPT_THAANA))
) {
log_err("uscript_hasScript(U+FDF2, ...) is wrong\n");
}
if(uscript_hasScript(0x0640, 0xaffe)) {
/* An unguarded implementation might go into an infinite loop. */
log_err("uscript_hasScript(U+0640, bogus 0xaffe) is wrong\n");
}
}
static UBool scriptExtensionsFilter(UChar32 ch, void* context) {
return uscript_hasScript(ch, *(UScriptCode*)context);
}
bool HarfBuzzShaper::collectHarfBuzzRuns()
{
const UChar* normalizedBufferEnd = m_normalizedBuffer.get() + m_normalizedBufferLength;
SurrogatePairAwareTextIterator iterator(m_normalizedBuffer.get(), 0, m_normalizedBufferLength, m_normalizedBufferLength);
UChar32 character;
unsigned clusterLength = 0;
unsigned startIndexOfCurrentRun = 0;
if (!iterator.consume(character, clusterLength))
return false;
const SimpleFontData* nextFontData = m_font->glyphDataForCharacter(character, false).fontData;
UErrorCode errorCode = U_ZERO_ERROR;
UScriptCode nextScript = uscript_getScript(character, &errorCode);
if (U_FAILURE(errorCode))
return false;
do {
const UChar* currentCharacterPosition = iterator.characters();
const SimpleFontData* currentFontData = nextFontData;
UScriptCode currentScript = nextScript;
for (iterator.advance(clusterLength); iterator.consume(character, clusterLength); iterator.advance(clusterLength)) {
if (Font::treatAsZeroWidthSpace(character))
continue;
if (U_GET_GC_MASK(character) & U_GC_M_MASK) {
int markLength = clusterLength;
const UChar* markCharactersEnd = iterator.characters() + clusterLength;
while (markCharactersEnd < normalizedBufferEnd) {
UChar32 nextCharacter;
int nextCharacterLength = 0;
U16_NEXT(markCharactersEnd, nextCharacterLength, normalizedBufferEnd - markCharactersEnd, nextCharacter);
if (!(U_GET_GC_MASK(nextCharacter) & U_GC_M_MASK))
break;
markLength += nextCharacterLength;
markCharactersEnd += nextCharacterLength;
}
if (currentFontData->canRenderCombiningCharacterSequence(currentCharacterPosition, markCharactersEnd - currentCharacterPosition)) {
clusterLength = markLength;
continue;
}
nextFontData = m_font->glyphDataForCharacter(character, false).fontData;
} else
nextFontData = m_font->glyphDataForCharacter(character, false).fontData;
nextScript = uscript_getScript(character, &errorCode);
if (U_FAILURE(errorCode))
return false;
if ((nextFontData != currentFontData) || ((currentScript != nextScript) && (nextScript != USCRIPT_INHERITED) && (!uscript_hasScript(character, currentScript))))
break;
if (nextScript == USCRIPT_INHERITED)
nextScript = currentScript;
currentCharacterPosition = iterator.characters();
}
unsigned numCharactersOfCurrentRun = iterator.currentCharacter() - startIndexOfCurrentRun;
hb_script_t script = hb_icu_script_to_script(currentScript);
m_harfBuzzRuns.append(HarfBuzzRun::create(currentFontData, startIndexOfCurrentRun, numCharactersOfCurrentRun, m_run.direction(), script));
currentFontData = nextFontData;
startIndexOfCurrentRun = iterator.currentCharacter();
} while (iterator.consume(character, clusterLength));
return !m_harfBuzzRuns.isEmpty();
}
