8b9b85e7f5
Former-commit-id: 172c8e3c300b39d5785c7a3e8dfb08ebdbc1a99b
726 lines
21 KiB
C#
726 lines
21 KiB
C#
/*
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* UTF7Encoding.cs - Implementation of the
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* "System.Text.UTF7Encoding" class.
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*
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* Copyright (c) 2002 Southern Storm Software, Pty Ltd
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* Copyright (c) 2003, 2004, Novell, Inc.
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* 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, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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namespace System.Text
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{
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using System;
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using System.Runtime.InteropServices;
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[Serializable]
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[ComVisible (true)]
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[MonoLimitation ("Serialization format not compatible with .NET")]
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#if ECMA_COMPAT
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internal
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#else
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public
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#endif
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class UTF7Encoding : Encoding
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{
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// Magic number used by Windows for UTF-7.
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internal const int UTF7_CODE_PAGE = 65000;
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// Internal state.
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private bool allowOptionals;
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// Encoding rule table for 0x00-0x7F.
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// 0 - full encode, 1 - direct, 2 - optional, 3 - encode plus.
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private static readonly byte[] encodingRules = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, // 00
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 10
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1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 3, 1, 1, 1, 1, // 20
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, // 30
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2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 40
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 2, 2, 2, // 50
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2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 60
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 0, 0, // 70
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};
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// Characters to use to encode 6-bit values in base64.
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private const String base64Chars =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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// Map bytes in base64 to 6-bit values.
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private static readonly sbyte[] base64Values = {
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 00
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 10
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, // 20
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, // 30
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-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, // 40
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, // 50
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-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, // 60
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1, // 70
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 80
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 90
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // A0
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // B0
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // C0
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // D0
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // E0
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // F0
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};
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// Constructors.
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public UTF7Encoding ()
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: this (false)
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{
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}
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public UTF7Encoding (bool allowOptionals)
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: base (UTF7_CODE_PAGE)
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{
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this.allowOptionals = allowOptionals;
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body_name = "utf-7";
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encoding_name = "Unicode (UTF-7)";
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header_name = "utf-7";
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is_mail_news_display = true;
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is_mail_news_save = true;
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web_name = "utf-7";
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windows_code_page = UnicodeEncoding.UNICODE_CODE_PAGE;
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}
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[ComVisible (false)]
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public override int GetHashCode ()
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{
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int basis = base.GetHashCode ();
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return allowOptionals ? -basis : basis;
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}
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[ComVisible(false)]
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public override bool Equals (object value)
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{
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UTF7Encoding e = value as UTF7Encoding;
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if (e == null)
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return false;
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return allowOptionals == e.allowOptionals &&
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EncoderFallback.Equals (e.EncoderFallback) &&
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DecoderFallback.Equals (e.DecoderFallback);
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}
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// Internal version of "GetByteCount" that can handle
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// a rolling state between calls.
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private static int InternalGetByteCount
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(char[] chars, int index, int count, bool flush,
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int leftOver, bool isInShifted, bool allowOptionals)
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{
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// Validate the parameters.
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if (chars == null) {
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throw new ArgumentNullException ("chars");
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}
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if (index < 0 || index > chars.Length) {
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throw new ArgumentOutOfRangeException ("index", _("ArgRange_Array"));
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}
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if (count < 0 || count > (chars.Length - index)) {
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throw new ArgumentOutOfRangeException ("count", _("ArgRange_Array"));
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}
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// Determine the length of the output.
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int length = 0;
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int leftOverSize = (leftOver >> 8);
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byte[] rules = encodingRules;
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int ch, rule;
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while (count > 0) {
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ch = (int)(chars[index++]);
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--count;
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if (ch < 0x0080) {
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rule = rules[ch];
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} else {
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rule = 0;
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}
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switch (rule) {
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case 0:
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// Handle characters that must be fully encoded.
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if ( !isInShifted ) {
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++length;
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leftOverSize = 0;
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isInShifted = true;
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}
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leftOverSize += 16;
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while (leftOverSize >= 6) {
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++length;
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leftOverSize -= 6;
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}
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break;
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case 1:
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// The character is encoded as itself.
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if (isInShifted) {
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if (leftOverSize != 0) {
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// Flush the previous encoded sequence.
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++length;
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leftOverSize = 0;
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}
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// Count the "-" (sequence terminator)
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++length;
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isInShifted = false;
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}
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++length;
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break;
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case 2:
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// The character may need to be encoded.
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if (allowOptionals) {
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goto case 1;
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} else {
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goto case 0;
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}
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// Not reached.
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case 3:
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// Encode the plus sign as "+-".
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if (isInShifted) {
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if (leftOverSize != 0) {
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// Flush the previous encoded sequence.
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++length;
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leftOverSize = 0;
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}
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// Count the "-" (sequence terminator)
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++length;
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isInShifted = false;
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}
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length += 2;
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break;
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}
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}
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if (isInShifted && flush) {
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if (leftOverSize != 0)
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{
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// Flush the previous encoded sequence.
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++length;
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}
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// Count the "-" (sequence terminator)
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++length;
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}
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// Return the length to the caller.
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return length;
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}
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// Get the number of bytes needed to encode a character buffer.
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public override int GetByteCount (char[] chars, int index, int count)
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{
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return InternalGetByteCount (chars, index, count, true, 0, false, allowOptionals);
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}
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// Internal version of "GetBytes" that can handle a
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// rolling state between calls.
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private static int InternalGetBytes
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(char[] chars, int charIndex, int charCount,
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byte[] bytes, int byteIndex, bool flush,
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ref int leftOver, ref bool isInShifted, bool allowOptionals)
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{
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// Validate the parameters.
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if (chars == null) {
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throw new ArgumentNullException ("chars");
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}
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if (bytes == null) {
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throw new ArgumentNullException ("bytes");
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}
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if (charIndex < 0 || charIndex > chars.Length) {
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throw new ArgumentOutOfRangeException ("charIndex", _("ArgRange_Array"));
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}
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if (charCount < 0 || charCount > (chars.Length - charIndex)) {
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throw new ArgumentOutOfRangeException ("charCount", _("ArgRange_Array"));
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}
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if (byteIndex < 0 || byteIndex > bytes.Length) {
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throw new ArgumentOutOfRangeException ("byteIndex", _("ArgRange_Array"));
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}
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// Convert the characters.
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int posn = byteIndex;
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int byteLength = bytes.Length;
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int leftOverSize = (leftOver >> 8);
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int leftOverBits = (leftOver & 0xFF);
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byte[] rules = encodingRules;
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String base64 = base64Chars;
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int ch, rule;
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while (charCount > 0) {
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ch = (int)(chars[charIndex++]);
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--charCount;
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if (ch < 0x0080) {
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rule = rules[ch];
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} else {
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rule = 0;
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}
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switch (rule) {
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case 0:
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// Handle characters that must be fully encoded.
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if (!isInShifted) {
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if (posn >= byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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// Start the sequence
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bytes[posn++] = (byte)'+';
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isInShifted = true;
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leftOverSize = 0;
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}
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leftOverBits = ((leftOverBits << 16) | ch);
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leftOverSize += 16;
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while (leftOverSize >= 6) {
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if (posn >= byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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leftOverSize -= 6;
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bytes[posn++] = (byte)(base64 [leftOverBits >> leftOverSize]);
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leftOverBits &= ((1 << leftOverSize) - 1);
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}
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break;
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case 1:
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// The character is encoded as itself.
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if (isInShifted) {
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if (leftOverSize != 0) {
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// Flush the previous encoded sequence.
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if ((posn + 1) > byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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bytes[posn++] = (byte)(base64 [leftOverBits << (6 - leftOverSize)]);
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}
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if ((posn + 1) > byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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// Terminate the sequence
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bytes[posn++] = (byte)'-';
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isInShifted = false;
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leftOverSize = 0;
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leftOverBits = 0;
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}
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if (posn >= byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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bytes[posn++] = (byte)ch;
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break;
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case 2:
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// The character may need to be encoded.
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if (allowOptionals) {
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goto case 1;
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} else {
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goto case 0;
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}
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// Not reached.
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case 3:
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// Encode the plus sign as "+-".
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if (isInShifted) {
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if (leftOverSize != 0) {
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// Flush the previous encoded sequence.
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if ((posn + 1) > byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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bytes[posn++] = (byte)(base64 [leftOverBits << (6 - leftOverSize)]);
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}
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if ((posn + 1) > byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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// Terminate the sequence
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bytes[posn++] = (byte)'-';
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isInShifted = false;
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leftOverSize = 0;
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leftOverBits = 0;
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}
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if ((posn + 2) > byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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bytes[posn++] = (byte)'+';
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bytes[posn++] = (byte)'-';
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break;
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}
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}
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if (isInShifted && flush) {
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// Flush the previous encoded sequence.
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if (leftOverSize != 0) {
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if ((posn + 1) > byteLength) {
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throw new ArgumentException (_("Arg_InsufficientSpace"), "bytes");
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}
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bytes[posn++] = (byte)(base64 [leftOverBits << (6 - leftOverSize)]);
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}
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// Terminate the sequence
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bytes[posn++] = (byte)'-';
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leftOverSize = 0;
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leftOverBits = 0;
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isInShifted = false;
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}
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leftOver = ((leftOverSize << 8) | leftOverBits);
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// Return the length to the caller.
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return posn - byteIndex;
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}
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// Get the bytes that result from encoding a character buffer.
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public override int GetBytes (char[] chars, int charIndex, int charCount,
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byte[] bytes, int byteIndex)
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{
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int leftOver = 0;
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bool isInShifted = false;
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return InternalGetBytes (chars, charIndex, charCount, bytes, byteIndex, true,
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ref leftOver, ref isInShifted, allowOptionals);
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}
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// Internal version of "GetCharCount" that can handle
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// a rolling state between call.s
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private static int InternalGetCharCount
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(byte[] bytes, int index, int count, int leftOver)
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{
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// Validate the parameters.
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if (bytes == null) {
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throw new ArgumentNullException ("bytes");
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}
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if (index < 0 || index > bytes.Length) {
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throw new ArgumentOutOfRangeException ("index", _("ArgRange_Array"));
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}
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if (count < 0 || count > (bytes.Length - index)) {
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throw new ArgumentOutOfRangeException ("count", _("ArgRange_Array"));
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}
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// Determine the length of the result.
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int length = 0;
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int byteval;
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bool normal = ((leftOver & 0x01000000) == 0);
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bool prevIsPlus = ((leftOver & 0x02000000) != 0);
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int leftOverSize = ((leftOver >> 16) & 0xFF);
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sbyte[] base64 = base64Values;
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while (count > 0) {
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byteval = (int)(bytes[index++]);
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--count;
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if (normal) {
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if (byteval != '+') {
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// Directly-encoded character.
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++length;
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} else {
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// Start of a base64-encoded character.
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normal = false;
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prevIsPlus = true;
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}
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} else {
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// Process the next byte in a base64 sequence.
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if (byteval == (int)'-') {
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// End of a base64 sequence.
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if (prevIsPlus) {
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++length;
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}
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leftOverSize = 0;
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normal = true;
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} else if (base64 [byteval] != -1) {
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// Extra character in a base64 sequence.
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leftOverSize += 6;
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if (leftOverSize >= 16) {
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++length;
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leftOverSize -= 16;
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}
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} else {
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++length;
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normal = true;
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leftOverSize = 0;
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}
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prevIsPlus = false;
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}
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}
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// Return the final length to the caller.
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return length;
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}
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// Get the number of characters needed to decode a byte buffer.
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public override int GetCharCount (byte[] bytes, int index, int count)
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{
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return InternalGetCharCount (bytes, index, count, 0);
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}
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// Internal version of "GetChars" that can handle a
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// rolling state between calls.
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private static int InternalGetChars (byte[] bytes, int byteIndex, int byteCount,
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char[] chars, int charIndex, ref int leftOver)
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{
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// Validate the parameters.
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if (bytes == null) {
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throw new ArgumentNullException ("bytes");
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}
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if (chars == null) {
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throw new ArgumentNullException ("chars");
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}
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if (byteIndex < 0 || byteIndex > bytes.Length) {
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throw new ArgumentOutOfRangeException ("byteIndex", _("ArgRange_Array"));
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}
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if (byteCount < 0 || byteCount > (bytes.Length - byteIndex)) {
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throw new ArgumentOutOfRangeException ("byteCount", _("ArgRange_Array"));
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}
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if (charIndex < 0 || charIndex > chars.Length) {
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throw new ArgumentOutOfRangeException ("charIndex", _("ArgRange_Array"));
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}
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// Convert the bytes into characters.
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int posn = charIndex;
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int charLength = chars.Length;
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int byteval, b64value;
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bool normal = ((leftOver & 0x01000000) == 0);
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bool prevIsPlus = ((leftOver & 0x02000000) != 0);
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bool afterHighSurrogate = ((leftOver & 0x04000000) != 0);
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int leftOverSize = ((leftOver >> 16) & 0xFF);
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int leftOverBits = (leftOver & 0xFFFF);
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sbyte[] base64 = base64Values;
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while (byteCount > 0) {
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byteval = (int)(bytes[byteIndex++]);
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--byteCount;
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|
if (normal) {
|
|
if (byteval != '+') {
|
|
// Directly-encoded character.
|
|
if (posn >= charLength) {
|
|
throw new ArgumentException (_("Arg_InsufficientSpace"), "chars");
|
|
}
|
|
if (afterHighSurrogate) {
|
|
throw new ArgumentException (_("Arg_InvalidUTF7"), "chars");
|
|
}
|
|
chars[posn++] = (char)byteval;
|
|
} else {
|
|
// Start of a base64-encoded character.
|
|
normal = false;
|
|
prevIsPlus = true;
|
|
}
|
|
} else {
|
|
// Process the next byte in a base64 sequence.
|
|
if (byteval == (int)'-') {
|
|
// End of a base64 sequence.
|
|
if (prevIsPlus) {
|
|
if (posn >= charLength) {
|
|
throw new ArgumentException (_("Arg_InsufficientSpace"), "chars");
|
|
}
|
|
if (afterHighSurrogate) {
|
|
throw new ArgumentException (_("Arg_InvalidUTF7"), "chars");
|
|
}
|
|
chars[posn++] = '+';
|
|
}
|
|
// RFC1642 Rule #2
|
|
// When decoding, any bits at the end of the Modified Base64 sequence that
|
|
// do not constitute a complete 16-bit Unicode character are discarded.
|
|
// If such discarded bits are non-zero the sequence is ill-formed.
|
|
normal = true;
|
|
leftOverSize = 0;
|
|
leftOverBits = 0;
|
|
}
|
|
else if ((b64value = base64[byteval]) != -1)
|
|
{
|
|
// Extra character in a base64 sequence.
|
|
leftOverBits = (leftOverBits << 6) | b64value;
|
|
leftOverSize += 6;
|
|
if (leftOverSize >= 16) {
|
|
if (posn >= charLength) {
|
|
throw new ArgumentException (_("Arg_InsufficientSpace"), "chars");
|
|
}
|
|
leftOverSize -= 16;
|
|
char nextChar = (char)(leftOverBits >> leftOverSize);
|
|
if ((nextChar & 0xFC00) == 0xD800) {
|
|
afterHighSurrogate = true;
|
|
}
|
|
else if ((nextChar & 0xFC00) == 0xDC00) {
|
|
if (!afterHighSurrogate) {
|
|
throw new ArgumentException (_("Arg_InvalidUTF7"), "chars");
|
|
}
|
|
afterHighSurrogate = false;
|
|
}
|
|
chars[posn++] = nextChar;
|
|
leftOverBits &= ((1 << leftOverSize) - 1);
|
|
}
|
|
} else {
|
|
if (posn >= charLength) {
|
|
throw new ArgumentException (_("Arg_InsufficientSpace"), "chars");
|
|
}
|
|
if (afterHighSurrogate) {
|
|
throw new ArgumentException (_("Arg_InvalidUTF7"), "chars");
|
|
}
|
|
chars[posn++] = (char)byteval;
|
|
normal = true;
|
|
leftOverSize = 0;
|
|
leftOverBits = 0;
|
|
}
|
|
prevIsPlus = false;
|
|
}
|
|
}
|
|
leftOver = (leftOverBits | (leftOverSize << 16) |
|
|
(normal ? 0 : 0x01000000) |
|
|
(prevIsPlus ? 0x02000000 : 0) |
|
|
(afterHighSurrogate ? 0x04000000 : 0));
|
|
|
|
// Return the final length to the caller.
|
|
return posn - charIndex;
|
|
}
|
|
|
|
// Get the characters that result from decoding a byte buffer.
|
|
public override int GetChars (byte[] bytes, int byteIndex, int byteCount,
|
|
char[] chars, int charIndex)
|
|
{
|
|
int leftOver = 0;
|
|
int amount = InternalGetChars (bytes, byteIndex, byteCount, chars, charIndex, ref leftOver);
|
|
if ((leftOver & 0x04000000) != 0) {
|
|
throw new ArgumentException (_("Arg_InvalidUTF7"), "chars");
|
|
}
|
|
return amount;
|
|
}
|
|
|
|
// Get the maximum number of bytes needed to encode a
|
|
// specified number of characters.
|
|
public override int GetMaxByteCount (int charCount)
|
|
{
|
|
if (charCount < 0) {
|
|
throw new ArgumentOutOfRangeException ("charCount", _("ArgRange_NonNegative"));
|
|
}
|
|
if (charCount == 0)
|
|
return 0;
|
|
return 8 * (int) (charCount / 3) + (charCount % 3) * 3 + 2;
|
|
}
|
|
|
|
// Get the maximum number of characters needed to decode a
|
|
// specified number of bytes.
|
|
public override int GetMaxCharCount (int byteCount)
|
|
{
|
|
if (byteCount < 0) {
|
|
throw new ArgumentOutOfRangeException ("byteCount", _("ArgRange_NonNegative"));
|
|
}
|
|
return byteCount;
|
|
}
|
|
|
|
// Get a UTF7-specific decoder that is attached to this instance.
|
|
public override Decoder GetDecoder ()
|
|
{
|
|
return new UTF7Decoder (this);
|
|
}
|
|
|
|
// Get a UTF7-specific encoder that is attached to this instance.
|
|
public override Encoder GetEncoder ()
|
|
{
|
|
return new UTF7Encoder (allowOptionals, this);
|
|
}
|
|
|
|
// UTF-7 decoder implementation.
|
|
private sealed class UTF7Decoder : EncodingDecoder
|
|
{
|
|
// Internal state.
|
|
private int leftOver;
|
|
|
|
// Constructor.
|
|
public UTF7Decoder (Encoding encoding)
|
|
: base (encoding)
|
|
{
|
|
leftOver = 0;
|
|
}
|
|
|
|
// Override inherited methods.
|
|
public override int GetCharCount (byte[] bytes, int index, int count)
|
|
{
|
|
return InternalGetCharCount (bytes, index, count, leftOver);
|
|
}
|
|
public override int GetChars (byte[] bytes, int byteIndex,
|
|
int byteCount, char[] chars,
|
|
int charIndex)
|
|
{
|
|
return InternalGetChars (bytes, byteIndex, byteCount, chars, charIndex, ref leftOver);
|
|
}
|
|
|
|
} // class UTF7Decoder
|
|
|
|
// UTF-7 encoder implementation.
|
|
private sealed class UTF7Encoder : EncodingEncoder
|
|
{
|
|
private bool allowOptionals;
|
|
private int leftOver = 0;
|
|
private bool isInShifted = false;
|
|
|
|
// Constructor.
|
|
public UTF7Encoder (bool allowOptionals, UTF7Encoding encoding)
|
|
: base (encoding)
|
|
{
|
|
this.allowOptionals = allowOptionals;
|
|
}
|
|
|
|
// Override inherited methods.
|
|
public override int GetByteCount (char[] chars, int index,
|
|
int count, bool flush)
|
|
{
|
|
return InternalGetByteCount
|
|
(chars, index, count, flush, leftOver, isInShifted, allowOptionals);
|
|
}
|
|
public override int GetBytes (char[] chars, int charIndex,
|
|
int charCount, byte[] bytes,
|
|
int byteIndex, bool flush)
|
|
{
|
|
return InternalGetBytes (chars, charIndex, charCount,
|
|
bytes, byteIndex, flush,
|
|
ref leftOver, ref isInShifted, allowOptionals);
|
|
}
|
|
|
|
} // class UTF7Encoder
|
|
|
|
// a bunch of practically missing implementations (but should just work)
|
|
|
|
[CLSCompliantAttribute (false)]
|
|
[ComVisible(false)]
|
|
public override unsafe int GetByteCount (char *chars, int count)
|
|
{
|
|
return base.GetByteCount (chars, count);
|
|
}
|
|
|
|
[ComVisible(false)]
|
|
public override int GetByteCount (string s)
|
|
{
|
|
return base.GetByteCount (s);
|
|
}
|
|
|
|
[ComVisible(false)]
|
|
[CLSCompliantAttribute (false)]
|
|
public override unsafe int GetBytes (char *chars, int charCount, byte* bytes, int byteCount)
|
|
{
|
|
return base.GetBytes (chars, charCount, bytes, byteCount);
|
|
}
|
|
|
|
[ComVisible(false)]
|
|
public override int GetBytes (string s, int charIndex, int charCount, byte [] bytes, int byteIndex)
|
|
{
|
|
return base.GetBytes (s, charIndex, charCount, bytes, byteIndex);
|
|
}
|
|
|
|
[ComVisible(false)]
|
|
[CLSCompliantAttribute (false)]
|
|
public override unsafe int GetCharCount (byte *bytes, int count)
|
|
{
|
|
return base.GetCharCount (bytes, count);
|
|
}
|
|
|
|
[ComVisible(false)]
|
|
[CLSCompliantAttribute (false)]
|
|
public override unsafe int GetChars (byte* bytes, int byteCount, char* chars, int charCount)
|
|
{
|
|
return base.GetChars (bytes, byteCount, chars, charCount);
|
|
}
|
|
|
|
[ComVisible(false)]
|
|
public override string GetString (byte [] bytes, int index, int count)
|
|
{
|
|
return base.GetString (bytes, index, count);
|
|
}
|
|
|
|
}; // class UTF7Encoding
|
|
|
|
}; // namespace System.Text
|