92 lines
2.5 KiB
C#
92 lines
2.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace NzbDrone.Core
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{
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public static class Fluent
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{
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public static string WithDefault(this string actual, object defaultValue)
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{
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if (defaultValue == null)
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throw new ArgumentNullException("defaultValue");
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if (String.IsNullOrWhiteSpace(actual))
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{
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return defaultValue.ToString();
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}
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return actual;
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}
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public static Int64 Megabytes(this int megabytes)
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{
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return megabytes * 1048576L;
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}
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public static Int64 Gigabytes(this int gigabytes)
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{
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return gigabytes * 1073741824L;
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}
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public static string ToBestDateString(this DateTime dateTime)
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{
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if (dateTime == DateTime.Today.AddDays(-1))
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return "Yesterday";
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if (dateTime == DateTime.Today)
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return "Today";
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if (dateTime == DateTime.Today.AddDays(1))
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return "Tomorrow";
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if (dateTime > DateTime.Today.AddDays(1) && dateTime < DateTime.Today.AddDays(7))
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return dateTime.DayOfWeek.ToString();
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return dateTime.ToShortDateString();
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}
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public static string ParentUriString(this Uri uri)
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{
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return uri.AbsoluteUri.Remove(uri.AbsoluteUri.Length - String.Join("", uri.Segments).Length - uri.Query.Length);
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}
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public static int MaxOrDefault(this IEnumerable<int> ints)
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{
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var intList = ints.ToList();
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if (intList.Count() == 0)
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return 0;
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return intList.Max();
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}
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public static string Truncate(this string s, int maxLength)
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{
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if (Encoding.UTF8.GetByteCount(s) <= maxLength)
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return s;
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var cs = s.ToCharArray();
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int length = 0;
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int i = 0;
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while (i < cs.Length)
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{
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int charSize = 1;
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if (i < (cs.Length - 1) && char.IsSurrogate(cs[i]))
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charSize = 2;
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int byteSize = Encoding.UTF8.GetByteCount(cs, i, charSize);
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if ((byteSize + length) <= maxLength)
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{
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i = i + charSize;
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length += byteSize;
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}
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else
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break;
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}
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return s.Substring(0, i);
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}
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}
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}
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