PropertiesReader.cs :  » Template-Engines » NVelocity » Commons » Collections » C# / CSharp Open Source

using System;
using System.IO;
using System.Text;

namespace Commons.Collections{

    /// <summary>
    /// This class is used to read properties lines.  These lines do
    /// not terminate with new-line chars but rather when there is no
    /// backslash sign a the end of the line.  This is used to
    /// concatenate multiple lines for readability.
    /// </summary>
    internal class PropertiesReader : StreamReader {

  /// <summary>
  /// Constructor.
  /// </summary>
  /// <param name="reader">A Reader.</param>
  public PropertiesReader(StreamReader reader):base(reader.BaseStream) {}

  /// <summary>
  /// Read a property.
  /// </summary>
  /// <returns>A String.</returns>
  public virtual String ReadProperty() {
      StringBuilder buffer = new StringBuilder();

      try {
    while (true) {
        String line = ReadLine().Trim();
        if ((line.Length != 0) && (line[0] != '#')) {
      if (line.EndsWith("\\")) {
          line = line.Substring(0, (line.Length - 1) - (0));
          buffer.Append(line);
      } else {
          buffer.Append(line);
          break;
      }
        }
    }
      } catch (NullReferenceException e) {
    return null;
      }

      return buffer.ToString();
  }

    }
}