Merge pull request #21 from adamfisher/master

Added StreamReader.SkipLines() extension method.

Author: JonathanMagnan

src/Z.IO/System.IO.StreamReader/StreamReader.SkipLines.cs

@@ -0,0 +1,23 @@
+// Description: C# Extension Methods Library to enhances the .NET Framework by adding hundreds of new methods. It drastically increases developers productivity and code readability. Support C# and VB.NET
+// Website & Documentation: https://github.com/zzzprojects/Z.ExtensionMethods
+// Forum: https://github.com/zzzprojects/Z.ExtensionMethods/issues
+// License: https://github.com/zzzprojects/Z.ExtensionMethods/blob/master/LICENSE
+// More projects: http://www.zzzprojects.com/
+// Copyright © ZZZ Projects Inc. 2014 - 2016. All rights reserved.
+using System.IO;
+
+public static partial class Extensions
+{
+    /// <summary>
+    /// Skips the specified number of lines in a stream reader based on its current position.
+    /// </summary>
+    /// <param name="this">The stream reader.</param>
+    /// <param name="skipCount">The number of lines to skip.</param>
+    public static void SkipLines(this StreamReader @this, int skipCount)
+    {
+        for (var i = 0; i < skipCount && !@this.EndOfStream; i++)
+        {
+            @this.ReadLine();
+        }
+    }
+}

src/Z.IO/Z.IO.csproj

@@ -110,6 +110,7 @@
     <Compile Include="System.IO.FileInfo\FileInfo.WriteAllBytes.cs" />
     <Compile Include="System.IO.FileInfo\FileInfo.WriteAllLines.cs" />
     <Compile Include="System.IO.FileInfo\FileInfo.WriteAllText.cs" />
+    <Compile Include="System.IO.StreamReader\StreamReader.SkipLines.cs" />
     <Compile Include="System.IO.Stream\Stream.ReadToEnd.cs" />
     <Compile Include="System.IO.Stream\Stream.ToByteArray.cs" />
     <Compile Include="System.IO.Stream\Stream.ToMD5Hash.cs" />

test/Z.IO.Test/System.IO.StreamReader/StreamReader.SkipLines.cs

@@ -0,0 +1,40 @@
+// Description: C# Extension Methods Library to enhances the .NET Framework by adding hundreds of new methods. It drastically increases developers productivity and code readability. Support C# and VB.NET
+// Website & Documentation: https://github.com/zzzprojects/Z.ExtensionMethods
+// Forum: https://github.com/zzzprojects/Z.ExtensionMethods/issues
+// License: https://github.com/zzzprojects/Z.ExtensionMethods/blob/master/LICENSE
+// More projects: http://www.zzzprojects.com/
+// Copyright © ZZZ Projects Inc. 2014 - 2016. All rights reserved.
+using System;
+using System.IO;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Z.IO.Test
+{
+    [TestClass]
+    public class System_IO_StreamReader_SkipLines
+    {
+        [TestMethod]
+        public void SkipLines()
+        {
+            var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory,
+                "Examples_System_IO_FileInfo_SkipLines.txt");
+
+            File.WriteAllLines(filePath, new []
+            {
+                "Line1",
+                "Line2",
+                "Line3",
+                "Line4"
+            });
+            
+            using (var file = File.OpenText(filePath))
+            {
+                file.SkipLines(2);
+                var nextLine = file.ReadLine();
+
+                // Unit Test
+                Assert.AreEqual("Line3", nextLine);
+            }
+        }
+    }
+}

test/Z.IO.Test/Z.IO.Test.csproj

@@ -100,6 +100,7 @@
     <Compile Include="System.IO.FileInfo\FileInfo.WriteAllBytes.cs" />
     <Compile Include="System.IO.FileInfo\FileInfo.WriteAllLines.cs" />
     <Compile Include="System.IO.FileInfo\FileInfo.WriteAllText.cs" />
+    <Compile Include="System.IO.StreamReader\StreamReader.SkipLines.cs" />
     <Compile Include="System.IO.Stream\Stream.ReadToEnd.cs" />
     <Compile Include="System.IO.Stream\Stream.ToByteArray.cs" />
     <Compile Include="System.IO.Stream\Stream.ToMD5Hash.cs" />