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using System;
namespace VersOne.Epub.Schema
{
/// <summary>
/// <para>Represents a description of the EPUB book.</para>
/// <para>
/// See <see href="https://www.w3.org/TR/epub-33/#sec-opf-dcmes-optional-def" />,
/// <see href="https://idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.2.4" />,
/// and <see href="http://purl.org/dc/elements/1.1/description" /> for more information.
/// </para>
/// </summary>
public class EpubMetadataDescription
{
/// <summary>
/// Initializes a new instance of the <see cref="EpubMetadataDescription" /> class.
/// </summary>
/// <param name="description">The text content of this description.</param>
/// <param name="id">The unique ID of this description or <c>null</c> if the description doesn't have an ID.</param>
/// <param name="textDirection">The text direction of this description or <c>null</c> if the description doesn't specify a text direction.</param>
/// <param name="language">The language of this description or <c>null</c> if the description doesn't specify the language.</param>
/// <exception cref="ArgumentNullException">The <paramref name="description" /> parameter is <c>null</c>.</exception>
public EpubMetadataDescription(string description, string? id = null, EpubTextDirection? textDirection = null, string? language = null)
{
Description = description ?? throw new ArgumentNullException(nameof(description));
Id = id;
TextDirection = textDirection;
Language = language;
}
/// <summary>
/// <para>Gets the text content of this description.</para>
/// <para>
/// See <see href="https://www.w3.org/TR/epub-33/#sec-opf-dcmes-optional-def" />,
/// <see href="https://idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.2.4" />,
/// and <see href="http://purl.org/dc/elements/1.1/description" /> for more information.
/// </para>
/// </summary>
public string Description { get; }
/// <summary>
/// <para>Gets the unique ID of this description or <c>null</c> if the description doesn't have an ID.</para>
/// <para>See <see href="https://www.w3.org/TR/epub-33/#attrdef-id" /> for more information.</para>
/// </summary>
public string? Id { get; }
/// <summary>
/// <para>Gets the text direction of this description or <c>null</c> if the description doesn't specify a text direction.</para>
/// <para>See <see href="https://www.w3.org/TR/epub-33/#attrdef-dir" /> for more information.</para>
/// </summary>
public EpubTextDirection? TextDirection { get; }
/// <summary>
/// <para>Gets the language of this description or <c>null</c> if the description doesn't specify the language.</para>
/// <para>See <see href="https://www.w3.org/TR/epub-33/#attrdef-xml-lang" /> for more information.</para>
/// </summary>
public string? Language { get; }
}
}
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