public static getWordAtPosition(textSource:ITextSource, position:EditorCommon.IPosition): EditorCommon.IWordAtPosition {

		if (!textSource._lineIsTokenized(position.lineNumber)) {
			return WordHelper._getWordAtText(position.column, WordHelper.massageWordDefinitionOf(textSource.getMode()), textSource.getLineContent(position.lineNumber), 0);
		}

		var result: EditorCommon.IWordAtPosition = null;
		var txt = textSource.getLineContent(position.lineNumber),
			modeTransitions = textSource._getLineModeTransitions(position.lineNumber),
			columnIndex = position.column - 1,
			modeIndex = Arrays.findIndexInSegmentsArray(modeTransitions, columnIndex);

		result = WordHelper._getWordAtColumn(txt, position.column, modeIndex, modeTransitions);

		if (!result && modeIndex > 0 && modeTransitions[modeIndex].startIndex === columnIndex) {
			// The position is right at the beginning of `modeIndex`, so try looking at `modeIndex` - 1 too
			result = WordHelper._getWordAtColumn(txt, position.column, modeIndex - 1, modeTransitions);
		}

		return result;
	}

	public findIndexOfOffset(offset:number): number {
		return Arrays.findIndexInSegmentsArray(this._tokens, offset);
	}

	public static findIndexInSegmentsArray(arr:ViewLineToken[], desiredIndex: number): number {
		return Arrays.findIndexInSegmentsArray(arr, desiredIndex);
	}

	public static findIndexInSegmentsArray(arr:ModeTransition[], desiredIndex: number): number {
		return Arrays.findIndexInSegmentsArray(arr, desiredIndex);
	}