In our requirements, we set out a master list of tags that our parser is going to handle. In order to identify these tags, we are going to add an enumeration consisting of the tags we are making available to our users:
enum TagType { Paragraph, Header1, Header2, Header3, HorizontalRule}
From our requirements, we also know that we need to translate between these tags and their equivalent opening and closing HTML tags. The way that we are going to do this is to map tagType to an equivalent HTML tag. To do this, we are going to create a class that has the sole responsibility of handling this mapping for us. The following code shows this:
class TagTypeToHtml { private readonly tagType : Map<TagType, ...
