NullOnEmpty and IsWebLink string extensions.

csharp-leaf · Jan 18, 2019 · 15081b9 · 15081b9
1 parent 07ddb55
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diff --git a/Leaf.Core.sln.DotSettings.user b/Leaf.Core.sln.DotSettings.user
@@ -1,2 +1,16 @@
 <wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/CodeStyle/Naming/CSharpAutoNaming/IsNamingAutoDetectionCompleted/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/Naming/CSharpNaming/ApplyAutoDetectedRules/@EntryValue">True</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=Constants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb"&gt;&lt;ExtraRule Prefix="Between" Suffix="" Style="AaBb" /&gt;&lt;/Policy&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=EnumMember/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=LocalConstants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="hello" Suffix="" Style="AaBb"&gt;&lt;ExtraRule Prefix="" Suffix="" Style="aaBb" /&gt;&lt;/Policy&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=Locals/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=Method/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=Parameters/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=PrivateInstanceFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=PrivateStaticFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=PrivateStaticReadonly/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=Property/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=PublicFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/AutoDetectedNamingRules/=TypesAndNamespaces/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
 	<s:Int64 x:Key="/Default/Environment/SearchAndNavigation/DefaultOccurrencesGroupingIndex/@EntryValue">2</s:Int64></wpf:ResourceDictionary>
diff --git a/Leaf.Core/Extensions/String/StringExtensions.cs b/Leaf.Core/Extensions/String/StringExtensions.cs
@@ -10,6 +10,28 @@ namespace Leaf.Core.Extensions.String
     /// </summary>
     public static class StringExtensions
     {
+        /// <summary>
+        /// Проверяет строку, является ли она ссылкой с протоколом http:// или https://.
+        /// </summary>
+        /// <param name="self">Ссылка</param>
+        /// <param name="trim">Следует ли отсечь пробелы в начале и конце ссылки перед проверкой</param>
+        /// <returns>Вернет <see langword="true"/> если строка оказалось ссылкой начинающийся на http:// или https://.</returns>
+        public static bool IsWebLink(this string self, bool trim = false)
+        {
+            string link = self;
+            if (trim)
+                link = link.Trim();
+
+            return link.StartsWith("http://") || link.StartsWith("https://");
+        }
+
+        /// <summary>
+        /// Проверяет строку на равенство пустой строке и возвращает null если равенство соблюдено.
+        /// Используется для цепочных ? вызовов.
+        /// </summary>
+        /// <returns>Вернет <see langword="null"/> если строка равна <see cref="string.Empty"/>.</returns>
+        public static string NullOnEmpty(this string self) => self == string.Empty ? null : self;
+
         /// <summary>
         /// Проверяет наличие слова в строке, аналогично <see cref="string.Contains(string)"/>, но без учета реестра и региональных стандартов.
         /// </summary>