The following HTML tag demonstrates attributes: The source code for the Attribute class can be seen in Listing 1. The Attribute class is used to store individual HTML attributes. I will now show you how each of these classes functions, and how you will use them.
ParseHTML-The main class that you will interface with the ParseHTML class is fed the HTML that you would like to parse. Parse-Holds general text parsing routines. AttributeList-The attribute list holds an individual HTML tag and all of its attributes. Attribute-The attribute class is used to hold an individual attribute inside an HTML tag. The HTML parser consists of the following four classes: I will conclude this article by showing a simple example that uses the HTML parser. I will begin by showing you the main components that make up the HTML parser. In this article, I will show you how my HTML parser was constructed, and how you can use this parser with your own applications. The Solutionīecause of this, I found it necessary to write my own HTML parser. You will want your program to be able to process HTML from any source. Unfortunately, this is not a viable solution because you do not control the sources of HTML. This is line 1īoth an XML parser and any modern browser could understand this. The preceding HTML could be rewritten as in the following example. Of course, you can require HTML to be written in such a way that it is compatible with XML. The following HTML would cause problems for a XML parser. In XML, every beginning tag must have an ending tag. 
Let’s look at one of these examples in code to illustrate the difference. Empty attributes are not allowed in XML.XML does not allow duplicate attributes.All XML attribute values must be fully quoted with either single or double quotes.Consider the following major differences between XML and HTML: However, although XML and HTML look very similar, they are not very compatible. NET framework includes extensive support for Extensible Markup Language (XML). Evidence of this is the numerous questions posted by C# programmers looking for an easy way to parse HTML. NET framework does not provide an easy way to parse HTML. There are many times that you might want to parse HTML in your C# application.
Most data on the Web is stored in the Hypertext Markup Language (HTML) format.
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