mirror of
https://github.com/jellyfin/jellyfin.git
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Pushing missing changes
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LukePulverenti
@@ -1,63 +1,170 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Security.Cryptography;
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namespace MediaBrowser.Common.Extensions
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{
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public static class BaseExtensions
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{
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static MD5CryptoServiceProvider md5Provider = new MD5CryptoServiceProvider();
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public static Guid GetMD5(this string str)
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{
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lock (md5Provider)
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{
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return new Guid(md5Provider.ComputeHash(Encoding.Unicode.GetBytes(str)));
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}
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}
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/// <summary>
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/// Examine a list of strings assumed to be file paths to see if it contains a parent of
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/// the provided path.
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/// </summary>
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/// <param name="lst"></param>
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/// <param name="path"></param>
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/// <returns></returns>
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public static bool ContainsParentFolder(this List<string> lst, string path)
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{
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path = path.TrimEnd('\\');
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foreach (var str in lst)
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{
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//this should be a little quicker than examining each actual parent folder...
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var compare = str.TrimEnd('\\');
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if (path.Equals(compare,StringComparison.OrdinalIgnoreCase)
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|| (path.StartsWith(compare, StringComparison.OrdinalIgnoreCase) && path[compare.Length] == '\\')) return true;
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}
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return false;
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}
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/// <summary>
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/// Helper method for Dictionaries since they throw on not-found keys
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <typeparam name="U"></typeparam>
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/// <param name="dictionary"></param>
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/// <param name="key"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static U GetValueOrDefault<T, U>(this Dictionary<T, U> dictionary, T key, U defaultValue)
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{
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U val;
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if (!dictionary.TryGetValue(key, out val))
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{
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val = defaultValue;
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}
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return val;
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}
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}
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}
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Threading;
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namespace MediaBrowser.Common.Extensions
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{
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/// <summary>
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/// Class BaseExtensions
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/// </summary>
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public static class BaseExtensions
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{
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/// <summary>
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/// Tries the add.
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/// </summary>
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/// <typeparam name="TKey">The type of the T key.</typeparam>
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/// <typeparam name="TValue">The type of the T value.</typeparam>
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/// <param name="dictionary">The dictionary.</param>
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/// <param name="key">The key.</param>
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/// <param name="value">The value.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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public static bool TryAdd<TKey, TValue>(this Dictionary<TKey, TValue> dictionary, TKey key, TValue value)
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{
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if (dictionary.ContainsKey(key))
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{
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return false;
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}
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dictionary.Add(key, value);
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return true;
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}
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/// <summary>
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/// Provides an additional overload for string.split
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/// </summary>
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/// <param name="val">The val.</param>
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/// <param name="separator">The separator.</param>
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/// <param name="options">The options.</param>
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/// <returns>System.String[][].</returns>
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public static string[] Split(this string val, char separator, StringSplitOptions options)
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{
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return val.Split(new[] { separator }, options);
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}
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/// <summary>
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/// Invokes an action after a specified delay
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/// </summary>
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/// <param name="dispatcher">The dispatcher.</param>
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/// <param name="action">The action.</param>
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/// <param name="delayMs">The delay ms.</param>
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public static void InvokeWithDelay(this Dispatcher dispatcher, Action action, long delayMs)
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{
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var timer = new DispatcherTimer(DispatcherPriority.Normal, dispatcher);
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timer.Interval = TimeSpan.FromMilliseconds(delayMs);
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timer.Tick += (sender, args) =>
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{
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timer.Stop();
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action();
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};
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timer.Start();
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}
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/// <summary>
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/// Provides a non-blocking method to start a process and wait asynchronously for it to exit
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/// </summary>
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/// <param name="process">The process.</param>
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/// <returns>Task{System.Boolean}.</returns>
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public static Task<bool> RunAsync(this Process process)
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{
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var tcs = new TaskCompletionSource<bool>();
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process.EnableRaisingEvents = true;
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process.Exited += (sender, args) => tcs.SetResult(true);
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process.Start();
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return tcs.Task;
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}
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/// <summary>
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/// Shuffles an IEnumerable
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list">The list.</param>
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/// <returns>IEnumerable{``0}.</returns>
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public static IEnumerable<T> Shuffle<T>(this IEnumerable<T> list)
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{
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return list.OrderBy(x => Guid.NewGuid());
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}
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/// <summary>
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/// Gets the M d5.
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/// </summary>
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/// <param name="str">The STR.</param>
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/// <returns>Guid.</returns>
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public static Guid GetMD5(this string str)
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{
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using (var provider = new MD5CryptoServiceProvider())
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{
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return new Guid(provider.ComputeHash(Encoding.Unicode.GetBytes(str)));
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}
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}
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/// <summary>
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/// Gets the MB id.
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/// </summary>
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/// <param name="str">The STR.</param>
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/// <param name="aType">A type.</param>
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/// <returns>Guid.</returns>
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/// <exception cref="System.ArgumentNullException">aType</exception>
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public static Guid GetMBId(this string str, Type aType)
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{
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if (aType == null)
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{
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throw new ArgumentNullException("aType");
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}
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return (aType.FullName + str.ToLower()).GetMD5();
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}
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/// <summary>
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/// Helper method for Dictionaries since they throw on not-found keys
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <typeparam name="U"></typeparam>
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/// <param name="dictionary">The dictionary.</param>
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/// <param name="key">The key.</param>
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/// <param name="defaultValue">The default value.</param>
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/// <returns>``1.</returns>
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public static U GetValueOrDefault<T, U>(this Dictionary<T, U> dictionary, T key, U defaultValue)
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{
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U val;
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if (!dictionary.TryGetValue(key, out val))
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{
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val = defaultValue;
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}
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return val;
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}
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/// <summary>
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/// Gets the attribute value.
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/// </summary>
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/// <param name="str">The STR.</param>
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/// <param name="attrib">The attrib.</param>
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/// <returns>System.String.</returns>
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/// <exception cref="System.ArgumentNullException">attrib</exception>
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public static string GetAttributeValue(this string str, string attrib)
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{
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if (attrib == null)
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{
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throw new ArgumentNullException("attrib");
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}
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string srch = "[" + attrib + "=";
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int start = str.IndexOf(srch, StringComparison.OrdinalIgnoreCase);
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if (start > -1)
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{
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start += srch.Length;
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int end = str.IndexOf(']', start);
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return str.Substring(start, end - start);
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}
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return null;
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}
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}
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}
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