Method FillRange

scintilla/src/RunStyles.cxx:117–164

}

bool RunStyles::FillRange(int &position, int value, int &fillLength) {
	if (fillLength <= 0) {
		return false;
	}
	int end = position + fillLength;
	if (end > Length()) {
		return false;
	}
	int runEnd = RunFromPosition(end);
	if (styles->ValueAt(runEnd) == value) {
		// End already has value so trim range.
		end = starts->PositionFromPartition(runEnd);
		if (position >= end) {
			// Whole range is already same as value so no action
			return false;
		}
		fillLength = end - position;
	} else {
		runEnd = SplitRun(end);
	}
	int runStart = RunFromPosition(position);
	if (styles->ValueAt(runStart) == value) {
		// Start is in expected value so trim range.
		runStart++;
		position = starts->PositionFromPartition(runStart);
		fillLength = end - position;
	} else {
		if (starts->PositionFromPartition(runStart) < position) {
			runStart = SplitRun(position);
			runEnd++;
		}
	}
	if (runStart < runEnd) {
		styles->SetValueAt(runStart, value);
		// Remove each old run over the range
		for (int run=runStart+1; run<runEnd; run++) {
			RemoveRun(runStart+1);
		}
		runEnd = RunFromPosition(end);
		RemoveRunIfSameAsPrevious(runEnd);
		RemoveRunIfSameAsPrevious(runStart);
		runEnd = RunFromPosition(end);
		RemoveRunIfEmpty(runEnd);
		return true;
	} else {
		return false;
	}
}

void RunStyles::SetValueAt(int position, int value) {
	int len = 1;