static EphemeralRangeTemplate<Strategy> findPlainTextAlgorithm(
const EphemeralRangeTemplate<Strategy>& inputRange,
const String& target,
FindOptions options) {
// CharacterIterator requires layoutObjects to be up to date.
if (!inputRange.startPosition().isConnected())
return EphemeralRangeTemplate<Strategy>();
DCHECK_EQ(inputRange.startPosition().document(),
inputRange.endPosition().document());
// FIXME: Reduce the code duplication with above (but how?).
size_t matchStart;
size_t matchLength;
{
TextIteratorBehaviorFlags behavior = iteratorFlagsForFindPlainText;
if (options & FindAPICall)
behavior |= TextIteratorForWindowFind;
CharacterIteratorAlgorithm<Strategy> findIterator(inputRange, behavior);
matchLength =
findPlainTextInternal(findIterator, target, options, matchStart);
if (!matchLength)
return EphemeralRangeTemplate<Strategy>(options & Backwards
? inputRange.startPosition()
: inputRange.endPosition());
}
CharacterIteratorAlgorithm<Strategy> computeRangeIterator(
inputRange, iteratorFlagsForFindPlainText);
return computeRangeIterator.calculateCharacterSubrange(matchStart,
matchLength);
}
static String extractString(const Element& element)
{
const EphemeralRangeTemplate<Strategy> range = EphemeralRangeTemplate<Strategy>::rangeOfContents(element);
Vector<UChar> buffer;
for (SimplifiedBackwardsTextIteratorAlgorithm<Strategy> it(range.startPosition(), range.endPosition()); !it.atEnd(); it.advance()) {
it.prependTextTo(buffer);
}
return String(buffer);
}
static String extractString(const Element& element) {
const EphemeralRangeTemplate<Strategy> range =
EphemeralRangeTemplate<Strategy>::rangeOfContents(element);
BackwardsTextBuffer buffer;
for (SimplifiedBackwardsTextIteratorAlgorithm<Strategy> it(
range.startPosition(), range.endPosition());
!it.atEnd(); it.advance()) {
it.copyTextTo(&buffer);
}
return String(buffer.data(), buffer.size());
}
EphemeralRangeTemplate<Strategy>::EphemeralRangeTemplate(const EphemeralRangeTemplate<Strategy>& other)
: EphemeralRangeTemplate(other.m_startPosition, other.m_endPosition)
{
ASSERT(other.isValid());
}
CharacterIteratorAlgorithm<Strategy>::CharacterIteratorAlgorithm(const EphemeralRangeTemplate<Strategy>& range, TextIteratorBehaviorFlags behavior)
: CharacterIteratorAlgorithm(range.startPosition(), range.endPosition(), behavior)
{
}
