322 lines
8.4 KiB
C#
322 lines
8.4 KiB
C#
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//
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// Mono.Data.Tds.Protocol.TdsCollation.cs
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//
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// Authors:
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// Veerapuram Varadhan <vvaradhan@novell.com>
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// Dmitry S. Kataev <dmitryskey@hotmail.com>
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//
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// Charset parts - Copyright (C) 2006,2007 Dmitry S. Kataev
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// Copyright (C) Novell Inc, 2009
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//
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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.Collections;
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using System.Text;
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namespace Mono.Data.Tds {
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internal static class TdsCollation
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{
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public static int LCID (byte[] collation)
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{
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if (collation == null)
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return -1;
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return (collation[0] | (collation[1] << 8) | ((collation[2] & 0x0F) << 16));
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}
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public static int CollationFlags (byte[] collation)
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{
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if (collation == null)
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return -1;
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return ((collation[2] & 0xF0) | ((collation[3] & 0x0F) << 4));
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}
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public static int Version (byte[] collation)
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{
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if (collation == null)
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return -1;
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return (collation[3] & 0xF0);
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}
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public static int SortId (byte[] collation)
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{
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if (collation == null)
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return -1;
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return (collation[4]);
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}
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}
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internal static class TdsCharset
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{
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private static Hashtable lcidCodes = new Hashtable();
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private static Hashtable sortCodes = new Hashtable();
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static TdsCharset ()
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{
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lcidCodes[0x436] = 1252;
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lcidCodes[0x41C] = 1250;
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lcidCodes[0x401] = 1256;
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lcidCodes[0x801] = 1256;
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lcidCodes[0xC01] = 1256;
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lcidCodes[0x1001] = 1256;
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lcidCodes[0x1401] = 1256;
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lcidCodes[0x1801] = 1256;
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lcidCodes[0x1C01] = 1256;
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lcidCodes[0x2001] = 1256;
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lcidCodes[0x2401] = 1256;
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lcidCodes[0x2801] = 1256;
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lcidCodes[0x2C01] = 1256;
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lcidCodes[0x3001] = 1256;
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lcidCodes[0x3401] = 1256;
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lcidCodes[0x3801] = 1256;
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lcidCodes[0x3C01] = 1256;
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lcidCodes[0x4001] = 1256;
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lcidCodes[0x42D] = 1252;
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lcidCodes[0x423] = 1251;
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lcidCodes[0x402] = 1251;
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lcidCodes[0x403] = 1252;
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lcidCodes[0x30404] = 950;
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lcidCodes[0x404] = 950;
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lcidCodes[0x804] = 936;
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lcidCodes[0x20804] = 936;
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lcidCodes[0x1004] = 936;
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lcidCodes[0x41a] = 1250;
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lcidCodes[0x405] = 1250;
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lcidCodes[0x406] = 1252;
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lcidCodes[0x413] = 1252;
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lcidCodes[0x813] = 1252;
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lcidCodes[0x409] = 1252;
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lcidCodes[0x809] = 1252;
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lcidCodes[0x1009] = 1252;
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lcidCodes[0x1409] = 1252;
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lcidCodes[0xC09] = 1252;
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lcidCodes[0x1809] = 1252;
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lcidCodes[0x1C09] = 1252;
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lcidCodes[0x2409] = 1252;
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lcidCodes[0x2009] = 1252;
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lcidCodes[0x425] = 1257;
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lcidCodes[0x0438] = 1252;
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lcidCodes[0x429] = 1256;
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lcidCodes[0x40B] = 1252;
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lcidCodes[0x40C] = 1252;
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lcidCodes[0x80C] = 1252;
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lcidCodes[0x100C] = 1252;
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lcidCodes[0xC0C] = 1252;
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lcidCodes[0x140C] = 1252;
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lcidCodes[0x10437] = 1252;
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lcidCodes[0x10407] = 1252;
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lcidCodes[0x407] = 1252;
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lcidCodes[0x807] = 1252;
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lcidCodes[0xC07] = 1252;
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lcidCodes[0x1007] = 1252;
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lcidCodes[0x1407] = 1252;
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lcidCodes[0x408] = 1253;
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lcidCodes[0x40D] = 1255;
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lcidCodes[0x439] = 65001;
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lcidCodes[0x40E] = 1250;
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lcidCodes[0x104E] = 1250;
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lcidCodes[0x40F] = 1252;
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lcidCodes[0x421] = 1252;
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lcidCodes[0x410] = 1252;
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lcidCodes[0x810] = 1252;
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lcidCodes[0x411] = 932;
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lcidCodes[0x10411] = 932;
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lcidCodes[0x412] = 949;
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lcidCodes[0x412] = 949;
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lcidCodes[0x426] = 1257;
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lcidCodes[0x427] = 1257;
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lcidCodes[0x827] = 1257;
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lcidCodes[0x41C] = 1251;
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lcidCodes[0x414] = 1252;
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lcidCodes[0x814] = 1252;
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lcidCodes[0x415] = 1250;
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lcidCodes[0x816] = 1252;
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lcidCodes[0x416] = 1252;
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lcidCodes[0x418] = 1250;
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lcidCodes[0x419] = 1251;
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lcidCodes[0x81A] = 1251;
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lcidCodes[0xC1A] = 1251;
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lcidCodes[0x41B] = 1250;
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lcidCodes[0x424] = 1250;
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lcidCodes[0x80A] = 1252;
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lcidCodes[0x40A] = 1252;
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lcidCodes[0xC0A] = 1252;
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lcidCodes[0x100A] = 1252;
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lcidCodes[0x140A] = 1252;
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lcidCodes[0x180A] = 1252;
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lcidCodes[0x1C0A] = 1252;
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lcidCodes[0x200A] = 1252;
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lcidCodes[0x240A] = 1252;
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lcidCodes[0x280A] = 1252;
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lcidCodes[0x2C0A] = 1252;
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lcidCodes[0x300A] = 1252;
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lcidCodes[0x340A] = 1252;
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lcidCodes[0x380A] = 1252;
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lcidCodes[0x3C0A] = 1252;
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lcidCodes[0x400A] = 1252;
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lcidCodes[0x41D] = 1252;
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lcidCodes[0x41E] = 874;
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lcidCodes[0x41F] = 1254;
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lcidCodes[0x422] = 1251;
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lcidCodes[0x420] = 1256;
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lcidCodes[0x42A] = 1258;
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sortCodes[30] = 437;
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sortCodes[31] = 437;
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sortCodes[32] = 437;
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sortCodes[33] = 437;
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sortCodes[34] = 437;
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sortCodes[40] = 850;
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sortCodes[41] = 850;
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sortCodes[42] = 850;
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sortCodes[43] = 850;
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sortCodes[44] = 850;
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sortCodes[49] = 850;
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sortCodes[50] = 1252;
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sortCodes[51] = 1252;
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sortCodes[52] = 1252;
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sortCodes[53] = 1252;
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sortCodes[54] = 1252;
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sortCodes[55] = 850;
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sortCodes[56] = 850;
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sortCodes[57] = 850;
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sortCodes[58] = 850;
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sortCodes[59] = 850;
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sortCodes[60] = 850;
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sortCodes[61] = 850;
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sortCodes[71] = 1252;
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sortCodes[72] = 1252;
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sortCodes[73] = 1252;
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sortCodes[74] = 1252;
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sortCodes[75] = 1252;
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sortCodes[80] = 1250;
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sortCodes[81] = 1250;
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sortCodes[82] = 1250;
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sortCodes[83] = 1250;
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sortCodes[84] = 1250;
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sortCodes[85] = 1250;
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sortCodes[86] = 1250;
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sortCodes[87] = 1250;
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sortCodes[88] = 1250;
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sortCodes[89] = 1250;
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sortCodes[90] = 1250;
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sortCodes[91] = 1250;
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sortCodes[92] = 1250;
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sortCodes[93] = 1250;
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sortCodes[94] = 1250;
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sortCodes[95] = 1250;
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sortCodes[96] = 1250;
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sortCodes[97] = 1250;
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sortCodes[98] = 1250;
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sortCodes[104] = 1251;
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sortCodes[105] = 1251;
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sortCodes[106] = 1251;
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sortCodes[107] = 1251;
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sortCodes[108] = 1251;
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sortCodes[112] = 1253;
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sortCodes[113] = 1253;
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sortCodes[114] = 1253;
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sortCodes[120] = 1253;
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sortCodes[121] = 1253;
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sortCodes[124] = 1253;
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sortCodes[128] = 1254;
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sortCodes[129] = 1254;
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sortCodes[130] = 1254;
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sortCodes[136] = 1255;
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sortCodes[137] = 1255;
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sortCodes[138] = 1255;
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sortCodes[144] = 1256;
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sortCodes[145] = 1256;
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sortCodes[146] = 1256;
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sortCodes[152] = 1257;
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sortCodes[153] = 1257;
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sortCodes[154] = 1257;
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sortCodes[155] = 1257;
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sortCodes[156] = 1257;
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sortCodes[157] = 1257;
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sortCodes[158] = 1257;
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sortCodes[159] = 1257;
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sortCodes[160] = 1257;
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sortCodes[183] = 1252;
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sortCodes[184] = 1252;
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sortCodes[185] = 1252;
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sortCodes[186] = 1252;
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sortCodes[192] = 932;
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sortCodes[193] = 932;
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sortCodes[194] = 949;
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sortCodes[195] = 949;
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sortCodes[196] = 950;
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sortCodes[197] = 950;
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sortCodes[198] = 936;
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sortCodes[199] = 936;
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sortCodes[200] = 932;
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sortCodes[201] = 949;
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sortCodes[202] = 950;
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sortCodes[203] = 936;
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sortCodes[204] = 874;
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sortCodes[205] = 874;
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sortCodes[206] = 874;
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}
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public static Encoding GetEncoding (byte[] collation)
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{
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if (TdsCollation.SortId (collation) != 0)
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return GetEncodingFromSortOrder (collation);
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else
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return GetEncodingFromLCID (collation);
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}
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public static Encoding GetEncodingFromLCID (byte[] collation)
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{
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int lcid = TdsCollation.LCID (collation);
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return GetEncodingFromLCID (lcid);
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}
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public static Encoding GetEncodingFromLCID (int lcid)
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{
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if (lcidCodes[lcid] != null)
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return Encoding.GetEncoding ((int)lcidCodes[lcid]);
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else
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return null;
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}
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public static Encoding GetEncodingFromSortOrder(byte[] collation)
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{
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int sortId = TdsCollation.SortId (collation);
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return GetEncodingFromSortOrder (sortId);
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}
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public static Encoding GetEncodingFromSortOrder (int sortId)
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{
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if (sortCodes[sortId] != null)
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return Encoding.GetEncoding ((int)sortCodes[sortId]);
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else
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return null;
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}
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}
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}
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