//

// https://github.com/ServiceStack/ServiceStack.Text

// ServiceStack.Text: .NET C# POCO JSON, JSV and CSV Text Serializers.

//

// Authors:

// Peter Townsend (townsend.pete@gmail.com)

// Demis Bellot (demis.bellot@gmail.com)

//

// Copyright 2012 ServiceStack, Inc. All Rights Reserved.

//

// Licensed under the same terms of ServiceStack.

//

using System;

using System.Collections.Generic;

using System.Text;

using ServiceStack.Text.Common;

namespace ServiceStack.Text

{

public static class JsvFormatter

{

public static string Format(string serializedText)

{

if (string.IsNullOrEmpty(serializedText)) return null;

var tabCount = 0;

var sb = StringBuilderThreadStatic.Allocate();

var firstKeySeparator = true;

var inString = false;

for (var i = 0; i < serializedText.Length; i++)

{

var current = serializedText[i];

var previous = i - 1 >= 0 ? serializedText[i - 1] : 0;

var next = i < serializedText.Length - 1 ? serializedText[i + 1] : 0;

if (current == JsWriter.MapStartChar || current == JsWriter.ListStartChar)

{

if (previous == JsWriter.MapKeySeperator)

{

if (next == JsWriter.MapEndChar || next == JsWriter.ListEndChar)

{

sb.Append(current);

sb.Append(serializedText[++i]); //eat next

continue;

}

AppendTabLine(sb, tabCount);

}

sb.Append(current);

AppendTabLine(sb, ++tabCount);

firstKeySeparator = true;

continue;

}

if (current == JsWriter.MapEndChar || current == JsWriter.ListEndChar)

{

AppendTabLine(sb, --tabCount);

sb.Append(current);

firstKeySeparator = true;

continue;

}

if (current == JsWriter.QuoteChar)

{

sb.Append(current);

inString = !inString;

continue;

}

if (current == JsWriter.ItemSeperator && !inString)

{

sb.Append(current);

AppendTabLine(sb, tabCount);

firstKeySeparator = true;

continue;

}

sb.Append(current);

if (current == JsWriter.MapKeySeperator && firstKeySeparator)

{

sb.Append(" ");

firstKeySeparator = false;

}

}

return StringBuilderThreadStatic.ReturnAndFree(sb);

}

private static void AppendTabLine(StringBuilder sb, int tabCount)

{

sb.AppendLine();

if (tabCount > 0)

{

sb.Append(new string('\t', tabCount));

}

}

}

}