2 // Copyright (c) 2007 James Newton-King
4 // Permission is hereby granted, free of charge, to any person
5 // obtaining a copy of this software and associated documentation
6 // files (the "Software"), to deal in the Software without
7 // restriction, including without limitation the rights to use,
8 // copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // copies of the Software, and to permit persons to whom the
10 // Software is furnished to do so, subject to the following
13 // The above copyright notice and this permission notice shall be
14 // included in all copies or substantial portions of the Software.
16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
18 // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 // OTHER DEALINGS IN THE SOFTWARE.
28 namespace Newtonsoft.Json.Utilities
31 /// Builds a string. Unlike StringBuilder this class lets you reuse it's internal buffer.
33 internal class StringBuffer
35 private char[] _buffer;
36 private int _position;
38 private static readonly char[] _emptyBuffer = new char[0];
42 get { return _position; }
43 set { _position = value; }
48 _buffer = _emptyBuffer;
51 public StringBuffer(int initalSize)
53 _buffer = new char[initalSize];
56 public void Append(char value)
58 // test if the buffer array is large enough to take the value
59 if (_position == _buffer.Length)
64 // set value and increment poisition
65 _buffer[_position++] = value;
70 _buffer = _emptyBuffer;
74 private void EnsureSize(int appendLength)
76 char[] newBuffer = new char[(_position + appendLength) * 2];
78 Array.Copy(_buffer, newBuffer, _position);
83 public override string ToString()
85 return ToString(0, _position);
88 public string ToString(int start, int length)
91 return new string(_buffer, start, length);
94 public char[] GetInternalBuffer()