// TODO(drott): crbug.com/623940 Fix lack of context sensitive case mapping here.
void CaseMappingHarfBuzzBufferFiller::fillSlowCase(
CaseMapIntend caseMapIntend,
AtomicString locale,
const UChar* buffer,
unsigned bufferLength,
unsigned startIndex,
unsigned numCharacters)
{
// Record pre-context.
hb_buffer_add_utf16(m_harfBuzzBuffer, toUint16(buffer), bufferLength, startIndex, 0);
for (unsigned charIndex = startIndex; charIndex < startIndex + numCharacters;) {
unsigned newCharIndex = charIndex;
U16_FWD_1(buffer, newCharIndex, numCharacters);
String charByChar(&buffer[charIndex], newCharIndex - charIndex);
String caseMappedChar;
if (caseMapIntend == CaseMapIntend::UpperCase)
caseMappedChar = charByChar.upper(locale);
else
caseMappedChar = charByChar.lower(locale);
for (unsigned j = 0; j < caseMappedChar.length();) {
UChar32 codepoint = 0;
U16_NEXT(caseMappedChar.characters16(), j, caseMappedChar.length(), codepoint);
// Add all characters of the case mapping result at the same cluster position.
hb_buffer_add(m_harfBuzzBuffer, codepoint, charIndex);
}
charIndex = newCharIndex;
}
// Record post-context
hb_buffer_add_utf16(m_harfBuzzBuffer, toUint16(buffer), bufferLength, startIndex + numCharacters, 0);
}
static void
fixture_init (fixture_t *fixture, gconstpointer user_data)
{
hb_buffer_t *b;
unsigned int i;
b = fixture->buffer = hb_buffer_create ();
switch (GPOINTER_TO_INT (user_data))
{
case BUFFER_EMPTY:
break;
case BUFFER_ONE_BY_ONE:
for (i = 1; i < G_N_ELEMENTS (utf32) - 1; i++)
hb_buffer_add (b, utf32[i], i);
break;
case BUFFER_UTF32:
hb_buffer_add_utf32 (b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2);
break;
case BUFFER_UTF16:
hb_buffer_add_utf16 (b, utf16, G_N_ELEMENTS (utf16), 1, G_N_ELEMENTS (utf16) - 2);
break;
case BUFFER_UTF8:
hb_buffer_add_utf8 (b, utf8, G_N_ELEMENTS (utf8), 1, G_N_ELEMENTS (utf8) - 2);
break;
default:
g_assert_not_reached ();
}
}
