ErrorReport * SpellingChecker::CheckDocument(const string & fileName)
{
	open document file
	if (document file cannot be opened)
		throw IOException

	errors = new ErrorReport()
	int lineNumber = 0

	for (each line in document)
	{
		++lineNumber

		for (each word in line)
		{
			if (!dictionary->Contains(word))
			{
				errors->AddError(word, lineNumber)
			}
		}
	}

	return errors;
}