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StringReference.cs
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261 lines (211 loc) · 5.28 KB
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/* Date: 15.7.2015, Time: 21:45 */
using System;
using System.Linq;
using System.Text;
using IllidanS4.SharpUtils.Accessing;
namespace IllidanS4.SharpUtils.Text
{
/// <summary>
/// Represents a mutable string.
/// </summary>
public abstract class StringReference
{
public StringReference()
{
}
public abstract void Clear();
public abstract override string ToString();
public abstract void Append(string value);
public abstract int Length{get;}
public abstract void Insert(int index, string value);
public abstract void Remove(int startIndex, int count);
public abstract void Replace(string oldValue, string newValue);
public virtual void Insert(int index, string value, int count)
{
Insert(index, String.Concat(Enumerable.Repeat(value, count)));
}
public virtual void AppendLine()
{
Append(Environment.NewLine);
}
public virtual void AppendLine(string value)
{
Append(value+Environment.NewLine);
}
public static implicit operator StringReference(StringBuilder builder)
{
return Create(builder);
}
public static implicit operator StringReference(string r)
{
return new StringRef(AtomicContainer.Create(r));
}
public static StringReference Create(StringBuilder builder)
{
return new StringBuilderRef(builder);
}
public static StringReference Create(IReadWriteAccessor<string> acc)
{
return new StringRef(acc);
}
public static StringReference Create(IReadWriteAccessor<StringChunk> acc)
{
return new StringChunkRef(acc);
}
public static void Create(ref string reference, Action<StringReference> outputAct)
{
ReferenceAccessor.Create(ref reference, r => outputAct(Create(r)));
}
public static TRet Create<TRet>(ref string reference, Func<StringReference, TRet> outputFunc)
{
return ReferenceAccessor.Create(ref reference, r => outputFunc(Create(r)));
}
public static void Create(ref StringChunk reference, Action<StringReference> outputAct)
{
ReferenceAccessor.Create(ref reference, r => outputAct(Create(r)));
}
public static TRet Create<TRet>(ref StringChunk reference, Func<StringReference, TRet> outputFunc)
{
return ReferenceAccessor.Create(ref reference, r => outputFunc(Create(r)));
}
private sealed class StringBuilderRef : StringReference
{
readonly StringBuilder builder;
public StringBuilderRef(StringBuilder builder)
{
this.builder = builder;
}
public override void Clear()
{
builder.Clear();
}
public override string ToString()
{
return builder.ToString();
}
public override void Append(string value)
{
builder.Append(value);
}
public override void AppendLine()
{
builder.AppendLine();
}
public override void AppendLine(string value)
{
builder.AppendLine(value);
}
public override int Length{
get{
return builder.Length;
}
}
public override void Insert(int index, string value)
{
builder.Insert(index, value);
}
public override void Insert(int index, string value, int count)
{
builder.Insert(index, value, count);
}
public override void Remove(int startIndex, int count)
{
builder.Remove(startIndex, count);
}
public override void Replace(string oldValue, string newValue)
{
builder.Replace(oldValue, newValue);
}
}
private sealed class StringRef : StringReference
{
readonly IReadWriteAccessor<string> acc;
private string Item{
get{
return acc.Item;
}
set{
acc.Item = value;
}
}
public StringRef(IReadWriteAccessor<string> acc)
{
this.acc = acc;
}
public override string ToString()
{
return Item;
}
public override void Replace(string oldValue, string newValue)
{
Item = Item.Replace(oldValue, newValue);
}
public override void Remove(int startIndex, int count)
{
Item = Item.Remove(startIndex, count);
}
public override int Length{
get{
return Item.Length;
}
}
public override void Insert(int index, string value)
{
Item = Item.Insert(index, value);
}
public override void Clear()
{
Item = String.Empty;
}
public override void Append(string value)
{
Item += value;
}
}
private sealed class StringChunkRef : StringReference
{
readonly IReadWriteAccessor<StringChunk> acc;
private StringChunk Item{
get{
return acc.Item;
}
set{
acc.Item = value;
}
}
public StringChunkRef(IReadWriteAccessor<StringChunk> acc)
{
this.acc = acc;
}
public override string ToString()
{
return Item.ToString();
}
public override void Replace(string oldValue, string newValue)
{
Item = Item.ToString().Replace(oldValue, newValue);
}
public override void Remove(int startIndex, int count)
{
Item = Item.ToString().Remove(startIndex, count);
}
public override int Length{
get{
return Item.Length;
}
}
public override void Insert(int index, string value)
{
Item = Item.ToString().Insert(index, value);
}
public override void Clear()
{
Item = default(StringChunk);
}
public override void Append(string value)
{
Item = Item.ToString()+value;
}
}
}
}