Sicherung

Config.Net/Stores/Formats/Ini/IniSection.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace Config.Net.Stores.Formats.Ini
+{
+   class IniSection
+   {
+      public const string SectionKeySeparator = ".";
+
+      private readonly List<IniEntity> _entities = new List<IniEntity>();
+      private readonly Dictionary<string, IniKeyValue> _keyToValue = new Dictionary<string, IniKeyValue>();
+
+      /// <summary>
+      /// Section name
+      /// </summary>
+      public string? Name { get; set; }
+
+      /// <summary>
+      /// 
+      /// </summary>
+      /// <param name="name">Pass null to work with global section</param>
+      public IniSection(string? name)
+      {
+         if(name != null)
+         {
+            if (name.StartsWith("[")) name = name.Substring(1);
+            if (name.EndsWith("]")) name = name.Substring(0, name.Length - 1);
+         }
+
+         Name = name;
+      }
+
+      public void Add(IniEntity entity)
+      {
+         _entities.Add(entity);
+
+         IniKeyValue? ikv = entity as IniKeyValue;
+         if(ikv != null)
+         {
+            _keyToValue[ikv.Key] = ikv;
+         }
+      }
+
+      public IniKeyValue? Set(string key, string? value)
+      {
+         if(value == null)
+         {
+            IniKeyValue? ikv;
+            if(_keyToValue.TryGetValue(key, out ikv))
+            {
+               _keyToValue.Remove(key);
+               return ikv;
+            }
+            return null;
+         }
+         else
+         {
+            IniKeyValue? ikv;
+            if(_keyToValue.TryGetValue(key, out ikv))
+            {
+               ikv.Value = value;
+            }
+            else
+            {
+               ikv = new IniKeyValue(key, value, null);
+               Add(ikv);
+            }
+            return ikv;
+         }
+      }
+
+      public static void SplitKey(string fullKey, out string? sectionName, out string keyName)
+      {
+         int idx = fullKey.IndexOf(SectionKeySeparator, StringComparison.CurrentCulture);
+
+         if(idx == -1)
+         {
+            sectionName = null;
+            keyName = fullKey;
+         }
+         else
+         {
+            sectionName = fullKey.Substring(0, idx);
+            keyName = fullKey.Substring(idx + 1);
+         }
+      }
+
+      public void WriteTo(StreamWriter writer)
+      {
+         foreach(IniEntity entity in _entities)
+         {
+            IniKeyValue? ikv = entity as IniKeyValue;
+            if(ikv != null)
+            {
+               writer.Write($"{ikv.EscapedKey}{IniKeyValue.KeyValueSeparator}{ikv.EscapedValue}");
+               if(ikv.Comment != null)
+               {
+                  writer.Write(" ");
+                  writer.Write(IniComment.CommentSeparator);
+                  writer.Write(ikv.Comment.EscapedValue);
+               }
+               writer.WriteLine();
+               continue;
+            }
+
+            IniComment? comment = entity as IniComment;
+            if(comment != null)
+            {
+               writer.Write(IniComment.CommentSeparator);
+               writer.WriteLine(comment.Value);
+            }
+         }
+      }
+
+      public override string ToString()
+      {
+         return Name ?? string.Empty;
+      }
+   }
+}