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SrgsOneOf.cs
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SrgsOneOf.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Speech.Internal;
using System.Speech.Internal.SrgsParser;
using System.Text;
using System.Xml;
namespace System.Speech.Recognition.SrgsGrammar
{
[Serializable]
[DebuggerDisplay("{DebuggerDisplayString ()}")]
[DebuggerTypeProxy(typeof(OneOfDebugDisplay))]
public class SrgsOneOf : SrgsElement, IOneOf
{
#region Constructors
public SrgsOneOf()
{
}
public SrgsOneOf(params string[] items)
: this()
{
Helpers.ThrowIfNull(items, nameof(items));
for (int i = 0; i < items.Length; i++)
{
if (items[i] == null)
{
throw new ArgumentNullException(nameof(items), SR.Get(SRID.ParamsEntryNullIllegal));
}
_items.Add(new SrgsItem(items[i]));
}
}
public SrgsOneOf(params SrgsItem[] items)
: this()
{
Helpers.ThrowIfNull(items, nameof(items));
for (int i = 0; i < items.Length; i++)
{
SrgsItem item = items[i];
if (item == null)
{
throw new ArgumentNullException(nameof(items), SR.Get(SRID.ParamsEntryNullIllegal));
}
_items.Add(item);
}
}
#endregion
#region public Method
public void Add(SrgsItem item)
{
Helpers.ThrowIfNull(item, nameof(item));
Items.Add(item);
}
#endregion
#region public Properties
// ISSUE: Do we need more constructors? Take a look at RuleElementCollection.AddOneOf methods. [Bug# 37115]
public Collection<SrgsItem> Items
{
get
{
return _items;
}
}
#endregion
#region internal Methods
internal override void WriteSrgs(XmlWriter writer)
{
// Write <one-of>...</one-of>
writer.WriteStartElement("one-of");
foreach (SrgsItem element in _items)
{
element.WriteSrgs(writer);
}
writer.WriteEndElement();
}
internal override string DebuggerDisplayString()
{
StringBuilder sb = new("SrgsOneOf Count = ");
sb.Append(_items.Count);
return sb.ToString();
}
#endregion
#region Protected Properties
/// <summary>
/// Allows the Srgs Element base class to implement
/// features requiring recursion in the elements tree.
/// </summary>
internal override SrgsElement[] Children
{
get
{
SrgsElement[] elements = new SrgsElement[_items.Count];
int i = 0;
foreach (SrgsItem item in _items)
{
elements[i++] = item;
}
return elements;
}
}
#endregion
#region Private Fields
private SrgsItemList _items = new();
#endregion
#region Private Types
// Used by the debugger display attribute
internal class OneOfDebugDisplay
{
public OneOfDebugDisplay(SrgsOneOf oneOf)
{
_items = oneOf._items;
}
[DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
public SrgsItem[] AKeys
{
get
{
SrgsItem[] items = new SrgsItem[_items.Count];
for (int i = 0; i < _items.Count; i++)
{
items[i] = _items[i];
}
return items;
}
}
private Collection<SrgsItem> _items;
}
#endregion
}
}