94 lines
2.9 KiB
C#
94 lines
2.9 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="CaseSensitiveStringDictionary.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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/*
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On UNIX systems the environment variable names are case sensitive (as the opposite from Windows).
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Thus using StringDictionary to store the environment settings is wrong
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(StringDictionary converts key values to lower case).
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CaseSensitiveStringDictionary is derived from the StringDictionary and it does the same thing,
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except the conversion of the key to lower case. So its fully usable for UNIX systems.
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This class is used to create the StringDictionary object everywhere
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its used for environment settings storage (only ProcessStartInfo.cs and Executor.cs).
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This change enables the correct UNIX behavior along with not changing public API.
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Author: vitkaras
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*/
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#if PLATFORM_UNIX
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namespace System.Collections.Specialized
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{
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using System.Runtime.InteropServices;
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using System.Diagnostics;
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using System;
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using System.Collections;
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using System.ComponentModel.Design.Serialization;
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using System.Globalization;
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using System.Security.Permissions;
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// This subclass of StringDictionary ensures that we do the lookups in a case-sensitive manner,
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// so we can match any string comparisons that are done on Unix.
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internal class CaseSensitiveStringDictionary : StringDictionary
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{
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public CaseSensitiveStringDictionary () {
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}
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public override string this[ string key ]
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{
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get
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{
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if ( key == null )
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{
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throw new ArgumentNullException ( "key" );
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}
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return (string) contents[ key ];
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}
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set
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{
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if ( key == null )
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{
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throw new ArgumentNullException ( "key" );
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}
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contents[ key ] = value;
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}
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}
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public override void Add ( string key, string value )
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{
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if ( key == null )
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{
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throw new ArgumentNullException ( "key" );
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}
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contents.Add ( key , value );
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}
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public override bool ContainsKey ( string key )
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{
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if ( key == null )
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{
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throw new ArgumentNullException ( "key" );
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}
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return contents.ContainsKey ( key );
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}
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public override void Remove ( string key )
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{
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if ( key == null )
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{
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throw new ArgumentNullException ( "key" );
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}
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contents.Remove ( key );
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}
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}
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}
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#endif // PLATFORM_UNIX
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