trim file snippet heading and trailing whitespace

readme.md

@@ -16,19 +16,6 @@ A [dotnet tool](https://docs.microsoft.com/en-us/dotnet/core/tools/global-tools)
 
 Support is available via a [Tidelift Subscription](https://tidelift.com/subscription/pkg/nuget-markdownsnippets?utm_source=nuget-markdownsnippets&utm_medium=referral&utm_campaign=enterprise).
 
-<!-- toc -->
-## Contents
-
-  * [Value Proposition](#value-proposition)
-  * [Behavior](#behavior)
-  * [Installation](#installation)
-  * [Usage](#usage)
-  * [Defining Snippets](#defining-snippets)
-  * [Using Snippets](#using-snippets)
-  * [Add to Windows Explorer](#add-to-windows-explorer)
-  * [More Documentation](#more-documentation)
-  * [Security contact information](#security-contact-information)<!-- endToc -->
-
 
 ## Value Proposition
 

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591</NoWarn>
-    <Version>23.1.1</Version>
+    <Version>23.1.2</Version>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>Markdown, Snippets, mdsnippets, documentation, MarkdownSnippets</PackageTags>
     <Description>Extracts snippets from code files and merges them into markdown documents.</Description>

src/MarkdownSnippets/Processing/MarkdownProcessor.cs

@@ -366,7 +366,8 @@ Snippet FileToSnippet(string key, string file, string? path)
         {
             var cleanedLines = File.ReadAllLines(file)
                 .Where(x => !StartEndTester.IsStartOrEnd(x.TrimStart())).ToList();
-            return (string.Join(newLine, cleanedLines), cleanedLines.Count);
+            var text = string.Join(newLine, cleanedLines).Trim();
+            return (text, cleanedLines.Count);
         }
     }
 }

src/Tests/DirectoryMarkdownProcessor/FileSnippetWithWhiteSpace/one.source.md

@@ -0,0 +1,12 @@
+Local
+
+snippet: sourceFile.txt
+
+Relative Local
+
+snippet: ./sourceFile.txt
+
+Rooted
+
+snippet: /sourceFile.txt
+

src/Tests/DirectoryMarkdownProcessor/FileSnippetWithWhiteSpace/sourceFile.txt

@@ -0,0 +1,7 @@
+
+
+
+From Source File
+
+
+

src/Tests/DirectoryMarkdownProcessorTests.FileSnippetWithTrailingWhiteSpace.verified.txt

@@ -0,0 +1,30 @@
+Local
+
+<!-- snippet: sourceFile.txt -->
+<a id='snippet-sourceFile.txt'></a>
+```txt
+From Source File
+```
+<sup><a href='/sourceFile.txt#L1-L5' title='Snippet source file'>snippet source</a> | <a href='#snippet-sourceFile.txt' title='Start of snippet'>anchor</a></sup>
+<!-- endSnippet -->
+
+Relative Local
+
+<!-- snippet: ./sourceFile.txt -->
+<a id='snippet-./sourceFile.txt'></a>
+```txt
+From Source File
+```
+<sup><a href='#snippet-./sourceFile.txt' title='Start of snippet'>anchor</a></sup>
+<!-- endSnippet -->
+
+Rooted
+
+<!-- snippet: /sourceFile.txt -->
+<a id='snippet-/sourceFile.txt'></a>
+```txt
+From Source File
+```
+<sup><a href='/sourceFile.txt#L1-L5' title='Snippet source file'>snippet source</a> | <a href='#snippet-/sourceFile.txt' title='Start of snippet'>anchor</a></sup>
+<!-- endSnippet -->
+

src/Tests/DirectoryMarkdownProcessorTests.FileSnippetWithWhiteSpace.verified.txt

@@ -0,0 +1,30 @@
+Local
+
+<!-- snippet: sourceFile.txt -->
+<a id='snippet-sourceFile.txt'></a>
+```txt
+From Source File
+```
+<sup><a href='/sourceFile.txt#L1-L7' title='Snippet source file'>snippet source</a> | <a href='#snippet-sourceFile.txt' title='Start of snippet'>anchor</a></sup>
+<!-- endSnippet -->
+
+Relative Local
+
+<!-- snippet: ./sourceFile.txt -->
+<a id='snippet-./sourceFile.txt'></a>
+```txt
+From Source File
+```
+<sup><a href='#snippet-./sourceFile.txt' title='Start of snippet'>anchor</a></sup>
+<!-- endSnippet -->
+
+Rooted
+
+<!-- snippet: /sourceFile.txt -->
+<a id='snippet-/sourceFile.txt'></a>
+```txt
+From Source File
+```
+<sup><a href='/sourceFile.txt#L1-L7' title='Snippet source file'>snippet source</a> | <a href='#snippet-/sourceFile.txt' title='Start of snippet'>anchor</a></sup>
+<!-- endSnippet -->
+

src/Tests/DirectoryMarkdownProcessorTests.cs

@@ -228,6 +228,22 @@ public Task BinaryFileSnippet()
         return Verifier.Verify(File.ReadAllTextAsync(result));
     }
 
+    [Fact]
+    public Task FileSnippetWithWhiteSpace()
+    {
+        var root = Path.GetFullPath("DirectoryMarkdownProcessor/FileSnippetWithWhiteSpace");
+        DirectoryMarkdownProcessor processor = new(
+            root,
+            writeHeader: false,
+            directoryIncludes: _ => true,
+        markdownDirectoryIncludes: _ => true,
+        snippetDirectoryIncludes: _ => true);
+        processor.Run();
+
+        var result = Path.Combine(root, "one.md");
+
+        return Verifier.Verify(File.ReadAllTextAsync(result));
+    }
 
     [Fact]
     public Task FileSnippet()