100 lines
3.2 KiB
C#
100 lines
3.2 KiB
C#
//
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// System.Text.EncodingEncoder.cs
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//
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// Authors:
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// Marcos Henrich (marcos.henrich@xamarin.com)
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//
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// Copyright (C) 2014 Xamarin Inc (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Runtime.InteropServices;
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namespace System.Text {
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abstract class EncodingEncoder : Encoder {
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protected readonly Encoding encoding;
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// Constructor.
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protected EncodingEncoder (Encoding encoding)
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{
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this.encoding = encoding;
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var fallback = encoding.EncoderFallback;
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if (fallback != null)
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Fallback = fallback;
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}
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public unsafe override void Convert (
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char* chars, int charCount,
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byte* bytes, int byteCount, bool flush,
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out int charsUsed, out int bytesUsed, out bool completed)
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{
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if (chars == null)
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throw new ArgumentNullException ("chars");
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if (bytes == null)
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throw new ArgumentNullException ("bytes");
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if (charCount < 0)
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throw new ArgumentOutOfRangeException ("charCount");
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if (byteCount < 0)
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throw new ArgumentOutOfRangeException ("byteCount");
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charsUsed = encoding.GetCharCount (bytes, byteCount);
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if (charsUsed > charCount)
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charsUsed = charCount;
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bytesUsed = encoding.GetBytes (chars, charsUsed, bytes, byteCount);
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completed = charsUsed == charCount;
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}
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public override void Convert (
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char [] chars, int charIndex, int charCount,
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byte [] bytes, int byteIndex, int byteCount, bool flush,
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out int charsUsed, out int bytesUsed, out bool completed)
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{
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if (chars == null)
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throw new ArgumentNullException ("chars");
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if (bytes == null)
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throw new ArgumentNullException ("bytes");
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if (charIndex < 0)
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throw new ArgumentOutOfRangeException ("charIndex");
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if (charCount < 0 || chars.Length < charIndex + charCount)
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throw new ArgumentOutOfRangeException ("charCount");
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if (byteIndex < 0)
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throw new ArgumentOutOfRangeException ("byteIndex");
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if (byteCount < 0 || bytes.Length < byteIndex + byteCount)
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throw new ArgumentOutOfRangeException ("byteCount");
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charsUsed = encoding.GetCharCount (bytes, byteIndex, byteCount);
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if (charsUsed > charCount)
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charsUsed = charCount;
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bytesUsed = encoding.GetBytes (chars, charIndex, charsUsed, bytes, byteIndex);
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completed = charsUsed == charCount;
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}
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}; // class EncodingEncoder
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}; // namespace System.Text
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