// Decompiled with JetBrains decompiler
// Type: Microsoft.Build.Shared.QuotingUtilities
// Assembly: MSBuild, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
// MVID: E42BAB90-704E-4C03-B5C0-D4E3A6B884E3
// Assembly location: C:\Users\Administrateur\Downloads\Virusshare-00001-msil\Virus.Win32.Nimnul.c-d5c6463b93131b3c485115414cf5809e01323986e3d4274a4868222cbb54aa43.exe

using System.Collections;
using System.Text;

namespace Microsoft.Build.Shared
{
  internal static class QuotingUtilities
  {
    private static readonly char[] splitMarker = new char[1];

    internal static ArrayList SplitUnquoted(
      string input,
      int maxSplits,
      bool keepEmptySplits,
      bool unquote,
      out int emptySplits,
      params char[] separator)
    {
      ErrorUtilities.VerifyThrow(maxSplits >= 2, "There is no point calling this method for less than two splits.");
      string str1 = new StringBuilder().Append(separator).ToString();
      ErrorUtilities.VerifyThrow(str1.IndexOf('"') == -1, "The double-quote character is not supported as a separator.");
      StringBuilder stringBuilder = new StringBuilder();
      stringBuilder.EnsureCapacity(input.Length);
      bool flag = false;
      int num1 = 0;
      int num2 = 1;
      for (int index = 0; index < input.Length && num2 < maxSplits; ++index)
      {
        switch (input[index])
        {
          case char.MinValue:
            continue;
          case '"':
            stringBuilder.Append('"');
            if (num1 % 2 == 0)
            {
              if (flag && index < input.Length - 1 && input[index + 1] == '"')
              {
                stringBuilder.Append('"');
                ++index;
              }
              flag = !flag;
            }
            num1 = 0;
            continue;
          case '\\':
            stringBuilder.Append('\\');
            ++num1;
            continue;
          default:
            if (!flag && (str1.Length == 0 && char.IsWhiteSpace(input[index]) || str1.IndexOf(input[index]) != -1))
            {
              stringBuilder.Append(char.MinValue);
              if (++num2 == maxSplits)
                stringBuilder.Append(input, index + 1, input.Length - (index + 1));
            }
            else
              stringBuilder.Append(input[index]);
            num1 = 0;
            continue;
        }
      }
      ArrayList arrayList = new ArrayList();
      emptySplits = 0;
      foreach (string input1 in stringBuilder.ToString().Split(QuotingUtilities.splitMarker, maxSplits))
      {
        string str2 = unquote ? QuotingUtilities.Unquote(input1) : input1;
        if (str2.Length > 0 || keepEmptySplits)
          arrayList.Add((object) str2);
        else
          ++emptySplits;
      }
      return arrayList;
    }

    internal static ArrayList SplitUnquoted(string input, params char[] separator) => QuotingUtilities.SplitUnquoted(input, int.MaxValue, false, false, out int _, separator);

    internal static string Unquote(string input, out int doubleQuotesRemoved)
    {
      StringBuilder stringBuilder = new StringBuilder();
      stringBuilder.EnsureCapacity(input.Length);
      bool flag = false;
      int repeatCount = 0;
      doubleQuotesRemoved = 0;
      for (int index = 0; index < input.Length; ++index)
      {
        switch (input[index])
        {
          case '"':
            stringBuilder.Append('\\', repeatCount / 2);
            if (repeatCount % 2 == 0)
            {
              if (flag && index < input.Length - 1 && input[index + 1] == '"')
              {
                stringBuilder.Append('"');
                ++index;
              }
              flag = !flag;
              ++doubleQuotesRemoved;
            }
            else
              stringBuilder.Append('"');
            repeatCount = 0;
            break;
          case '\\':
            ++repeatCount;
            break;
          default:
            stringBuilder.Append('\\', repeatCount);
            stringBuilder.Append(input[index]);
            repeatCount = 0;
            break;
        }
      }
      return stringBuilder.Append('\\', repeatCount).ToString();
    }

    internal static string Unquote(string input) => QuotingUtilities.Unquote(input, out int _);
  }
}