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AngleSharp

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3 Jul 2013BSD28 min read 257.3K   4.3K   166  
Bringing the DOM to C# with a HTML5/CSS3 parser written in C#.
using System;
using System.Text;

namespace AngleSharp.DOM
{
    /// <summary>
    /// Represents a text node.
    /// </summary>
    [DOM("Text")]
    public sealed class TextNode : CharacterData
    {
        #region ctor

        /// <summary>
        /// Creates a new empty text node.
        /// </summary>
        internal TextNode()
        {
            _type = NodeType.Text;
            _name = "#text";
        }

        /// <summary>
        /// Creates a new text node with the given text.
        /// </summary>
        /// <param name="text">The text to set.</param>
        internal TextNode(string text)
            : this()
        {
            AppendData(text);
        }

        /// <summary>
        /// Creates a new text node with the given character.
        /// </summary>
        /// <param name="c">The character to set.</param>
        internal TextNode(char c)
            : this()
        {
            AppendData(c);
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets if the TextNode is "empty".
        /// </summary>
        internal Boolean IsEmpty
        {
            get
            {
                for (int i = 0; i < Length; i++)
                {
                    if (!Specification.IsSpaceCharacter(this[i]))
                        return false;
                }

                return true;
            }
        }

        #endregion

        #region Methods

        /// <summary>
        /// Returns a duplicate of the node on which this method was called.
        /// </summary>
        /// <param name="deep">Optional value: true if the children of the node should also be cloned, or false to clone only the specified node.</param>
        /// <returns>The duplicate node.</returns>
        [DOM("cloneNode")]
        public override Node CloneNode(Boolean deep = true)
        {
            var node = new TextNode(Data);
            CopyProperties(this, node, deep);
            return node;
        }

        #endregion

        #region String representation

        /// <summary>
        /// Returns a string containing the text in quotation mark.
        /// </summary>
        /// <returns>A string containing the text content.</returns>
        public override String ToString()
        {
            return '"' + Data + '"';
        }

        /// <summary>
        /// Returns an HTML-code representation of the node.
        /// </summary>
        /// <returns>A string containing the HTML code.</returns>
        public override String ToHtml()
        {
            return Data;
        }

        #endregion
    }
}

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License

This article, along with any associated source code and files, is licensed under The BSD License


Written By
Chief Technology Officer
Germany Germany
Florian lives in Munich, Germany. He started his programming career with Perl. After programming C/C++ for some years he discovered his favorite programming language C#. He did work at Siemens as a programmer until he decided to study Physics.

During his studies he worked as an IT consultant for various companies. After graduating with a PhD in theoretical particle Physics he is working as a senior technical consultant in the field of home automation and IoT.

Florian has been giving lectures in C#, HTML5 with CSS3 and JavaScript, software design, and other topics. He is regularly giving talks at user groups, conferences, and companies. He is actively contributing to open-source projects. Florian is the maintainer of AngleSharp, a completely managed browser engine.

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