scripts
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niko
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using System;
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using System.Globalization;
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using System.Runtime.InteropServices;
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namespace System.Collections
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{
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/// <summary>Supplies a hash code for an object, using a hashing algorithm that ignores the case of strings.</summary>
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/// <filterpriority>2</filterpriority>
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// Token: 0x02000124 RID: 292
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[ComVisible(true)]
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[Obsolete("Please use StringComparer instead.")]
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[Serializable]
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public class CaseInsensitiveHashCodeProvider : IHashCodeProvider
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{
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/// <summary>Initializes a new instance of the <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" /> class using the <see cref="P:System.Threading.Thread.CurrentCulture" /> of the current thread.</summary>
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// Token: 0x06000F28 RID: 3880 RVA: 0x0003FF54 File Offset: 0x0003E154
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public CaseInsensitiveHashCodeProvider()
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{
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CultureInfo currentCulture = CultureInfo.CurrentCulture;
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if (!CaseInsensitiveHashCodeProvider.AreEqual(currentCulture, CultureInfo.InvariantCulture))
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{
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this.m_text = CultureInfo.CurrentCulture.TextInfo;
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}
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}
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/// <summary>Initializes a new instance of the <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" /> class using the specified <see cref="T:System.Globalization.CultureInfo" />.</summary>
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/// <param name="culture">The <see cref="T:System.Globalization.CultureInfo" /> to use for the new <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" />. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="culture" /> is null. </exception>
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// Token: 0x06000F29 RID: 3881 RVA: 0x0003FF90 File Offset: 0x0003E190
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public CaseInsensitiveHashCodeProvider(CultureInfo culture)
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{
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if (culture == null)
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{
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throw new ArgumentNullException("culture");
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}
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if (!CaseInsensitiveHashCodeProvider.AreEqual(culture, CultureInfo.InvariantCulture))
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{
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this.m_text = culture.TextInfo;
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}
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}
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/// <summary>Gets an instance of <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" /> that is associated with the <see cref="P:System.Threading.Thread.CurrentCulture" /> of the current thread and that is always available.</summary>
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/// <returns>An instance of <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" /> that is associated with the <see cref="P:System.Threading.Thread.CurrentCulture" /> of the current thread.</returns>
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/// <filterpriority>1</filterpriority>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode" />
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/// </PermissionSet>
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// Token: 0x17000258 RID: 600
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// (get) Token: 0x06000F2B RID: 3883 RVA: 0x0003FFE4 File Offset: 0x0003E1E4
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public static CaseInsensitiveHashCodeProvider Default
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{
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get
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{
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object obj = CaseInsensitiveHashCodeProvider.sync;
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CaseInsensitiveHashCodeProvider caseInsensitiveHashCodeProvider;
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lock (obj)
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{
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if (CaseInsensitiveHashCodeProvider.singleton == null)
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{
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CaseInsensitiveHashCodeProvider.singleton = new CaseInsensitiveHashCodeProvider();
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}
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else if (CaseInsensitiveHashCodeProvider.singleton.m_text == null)
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{
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if (!CaseInsensitiveHashCodeProvider.AreEqual(CultureInfo.CurrentCulture, CultureInfo.InvariantCulture))
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{
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CaseInsensitiveHashCodeProvider.singleton = new CaseInsensitiveHashCodeProvider();
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}
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}
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else if (!CaseInsensitiveHashCodeProvider.AreEqual(CaseInsensitiveHashCodeProvider.singleton.m_text, CultureInfo.CurrentCulture))
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{
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CaseInsensitiveHashCodeProvider.singleton = new CaseInsensitiveHashCodeProvider();
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}
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caseInsensitiveHashCodeProvider = CaseInsensitiveHashCodeProvider.singleton;
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}
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return caseInsensitiveHashCodeProvider;
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}
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}
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// Token: 0x06000F2C RID: 3884 RVA: 0x000400A0 File Offset: 0x0003E2A0
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private static bool AreEqual(CultureInfo a, CultureInfo b)
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{
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return a.Name == b.Name;
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}
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// Token: 0x06000F2D RID: 3885 RVA: 0x000400B4 File Offset: 0x0003E2B4
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private static bool AreEqual(TextInfo info, CultureInfo culture)
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{
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return info.CultureName == culture.Name;
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}
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/// <summary>Gets an instance of <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" /> that is associated with <see cref="P:System.Globalization.CultureInfo.InvariantCulture" /> and that is always available.</summary>
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/// <returns>An instance of <see cref="T:System.Collections.CaseInsensitiveHashCodeProvider" /> that is associated with <see cref="P:System.Globalization.CultureInfo.InvariantCulture" />.</returns>
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/// <filterpriority>1</filterpriority>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode" />
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/// </PermissionSet>
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// Token: 0x17000259 RID: 601
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// (get) Token: 0x06000F2E RID: 3886 RVA: 0x000400C8 File Offset: 0x0003E2C8
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public static CaseInsensitiveHashCodeProvider DefaultInvariant
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{
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get
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{
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return CaseInsensitiveHashCodeProvider.singletonInvariant;
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}
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}
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/// <summary>Returns a hash code for the given object, using a hashing algorithm that ignores the case of strings.</summary>
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/// <returns>A hash code for the given object, using a hashing algorithm that ignores the case of strings.</returns>
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/// <param name="obj">The <see cref="T:System.Object" /> for which a hash code is to be returned. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="obj" /> is null. </exception>
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/// <filterpriority>2</filterpriority>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode" />
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/// </PermissionSet>
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// Token: 0x06000F2F RID: 3887 RVA: 0x000400D0 File Offset: 0x0003E2D0
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public int GetHashCode(object obj)
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{
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if (obj == null)
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{
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throw new ArgumentNullException("obj");
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}
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string text = obj as string;
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if (text == null)
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{
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return obj.GetHashCode();
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}
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int num = 0;
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if (this.m_text != null && !CaseInsensitiveHashCodeProvider.AreEqual(this.m_text, CultureInfo.InvariantCulture))
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{
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foreach (char c in this.m_text.ToLower(text))
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{
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num = num * 31 + (int)c;
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}
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}
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else
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{
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for (int j = 0; j < text.Length; j++)
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{
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char c = char.ToLower(text[j], CultureInfo.InvariantCulture);
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num = num * 31 + (int)c;
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}
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}
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return num;
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}
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// Token: 0x040003B3 RID: 947
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private static readonly CaseInsensitiveHashCodeProvider singletonInvariant = new CaseInsensitiveHashCodeProvider(CultureInfo.InvariantCulture);
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// Token: 0x040003B4 RID: 948
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private static CaseInsensitiveHashCodeProvider singleton;
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// Token: 0x040003B5 RID: 949
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private static readonly object sync = new object();
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// Token: 0x040003B6 RID: 950
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private TextInfo m_text;
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}
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}
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