source: trunk/sources/HeuristicLab.Persistence/3.3/Default/Xml/Primitive/String2XmlSerializer.cs @ 9456

Last change on this file since 9456 was 9456, checked in by swagner, 7 years ago

Updated copyright year and added some missing license headers (#1889)

File size: 2.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System.Text;
23using System.Text.RegularExpressions;
24using HeuristicLab.Persistence.Core;
25
26
27namespace HeuristicLab.Persistence.Default.Xml.Primitive {
28
29  /// <summary>
30  /// Serializes a string to XML by embedding into a CDATA block.
31  /// </summary>
32  public sealed class String2XmlSerializer : PrimitiveXmlSerializerBase<string> {
33
34    /// <summary>
35    /// Formats the specified string.
36    /// </summary>
37    /// <param name="s">The string.</param>
38    /// <returns>An XmlString that embeds the string s in a CDATA section.</returns>
39    public override XmlString Format(string s) {
40      StringBuilder sb = new StringBuilder();
41      sb.Append("<![CDATA[");
42      sb.Append(s.Replace("]]>", "]]]]><![CDATA[>"));
43      sb.Append("]]>");
44      return new XmlString(sb.ToString());
45    }
46
47    private static Regex re = new Regex(@"<!\[CDATA\[((?:[^]]|\](?!\]>))*)\]\]>", RegexOptions.Singleline);
48
49    /// <summary>
50    /// Parses the specified XmlString into a string.
51    /// </summary>
52    /// <param name="x">The XMLString.</param>
53    /// <returns>The plain string contained in the XML CDATA section.</returns>
54    public override string Parse(XmlString x) {
55      StringBuilder sb = new StringBuilder();
56      foreach (Match m in re.Matches(x.Data)) {
57        sb.Append(m.Groups[1]);
58      }
59      string result = sb.ToString();
60      if (result.Length == 0 && x.Data.Length > 0 && !x.Data.Equals("<![CDATA[]]>"))
61        throw new PersistenceException("Invalid CDATA section during string parsing.");
62      return result;
63    }
64  }
65}
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