Fix the regressed indentation of printed comments

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator.Tests/AST/TestAST.cs

@@ -383,15 +383,18 @@ namespace CppSharp.Generator.Tests.AST
         public void TestComments()
         {
             var @class = AstContext.FindCompleteClass("TestComments");
-            var commentClass = @class.Comment.FullComment.CommentToString(CommentKind.BCPLSlash);
+            var textGenerator = new TextGenerator();
+            textGenerator.Print(@class.Comment.FullComment, CommentKind.BCPLSlash);
             Assert.AreEqual(@"/// <summary>
 /// <para>Hash set/map base class.</para>
 /// <para>Note that to prevent extra memory use due to vtable pointer, %HashBase intentionally does not declare a virtual destructor</para>
 /// <para>and therefore %HashBase pointers should never be used.</para>
-/// </summary>".Replace("\r", string.Empty), commentClass.Replace("\r", string.Empty));
+/// </summary>
+".Replace("\r", string.Empty), textGenerator.StringBuilder.Replace("\r", string.Empty).ToString());
 
             var method = @class.Methods.First(m => m.Name == "GetIOHandlerControlSequence");
-            var commentMethod = method.Comment.FullComment.CommentToString(CommentKind.BCPL);
+            textGenerator.StringBuilder.Clear();
+            textGenerator.Print(method.Comment.FullComment, CommentKind.BCPL);
             Assert.AreEqual(@"// <summary>
 // <para>Get the string that needs to be written to the debugger stdin file</para>
 // <para>handle when a control character is typed.</para>
@@ -407,10 +410,12 @@ namespace CppSharp.Generator.Tests.AST
 // <para>to have them do what normally would happen when using a real</para>
 // <para>terminal, so this function allows GUI programs to emulate this</para>
 // <para>functionality.</para>
-// </remarks>".Replace("\r", string.Empty), commentMethod.Replace("\r", string.Empty));
+// </remarks>
+".Replace("\r", string.Empty), textGenerator.StringBuilder.Replace("\r", string.Empty).ToString());
 
             var methodTestDoxygen = @class.Methods.First(m => m.Name == "SBAttachInfo");
-            var commentMethodDoxygen = methodTestDoxygen.Comment.FullComment.CommentToString(CommentKind.BCPLSlash);
+            textGenerator.StringBuilder.Clear();
+            textGenerator.Print(methodTestDoxygen.Comment.FullComment, CommentKind.BCPLSlash);
             Assert.AreEqual(@"/// <summary>Attach to a process by name.</summary>
 /// <param name=""path"">A full or partial name for the process to attach to.</param>
 /// <param name=""wait_for"">
@@ -420,11 +425,13 @@ namespace CppSharp.Generator.Tests.AST
 /// <remarks>
 /// <para>This function implies that a future call to SBTarget::Attach(...)</para>
 /// <para>will be synchronous.</para>
-/// </remarks>".Replace("\r", string.Empty), commentMethodDoxygen.Replace("\r", string.Empty));
+/// </remarks>
+".Replace("\r", string.Empty), textGenerator.StringBuilder.Replace("\r", string.Empty).ToString());
 
             var methodDoxygenCustomTags = @class.Methods.First(m => m.Name == "glfwDestroyWindow");
-            new CleanCommentsPass { }.VisitFull(methodDoxygenCustomTags.Comment.FullComment);
-            var commentMethodDoxygenCustomTag = methodDoxygenCustomTags.Comment.FullComment.CommentToString(CommentKind.BCPLSlash);
+            new CleanCommentsPass().VisitFull(methodDoxygenCustomTags.Comment.FullComment);
+            textGenerator.StringBuilder.Clear();
+            textGenerator.Print(methodDoxygenCustomTags.Comment.FullComment, CommentKind.BCPLSlash);
             Assert.AreEqual(@"/// <summary>Destroys the specified window and its context.</summary>
 /// <param name=""window"">The window to destroy.</param>
 /// <remarks>
@@ -437,7 +444,8 @@ namespace CppSharp.Generator.Tests.AST
 /// <para>This function must not be called from a callback.</para>
 /// <para>This function must only be called from the main thread.</para>
 /// <para>Added in version 3.0.  Replaces `glfwCloseWindow`.</para>
-/// </remarks>".Replace("\r", string.Empty), commentMethodDoxygenCustomTag.Replace("\r", string.Empty));
+/// </remarks>
+".Replace("\r", string.Empty), textGenerator.StringBuilder.Replace("\r", string.Empty).ToString());
         }
 
         [Test]

src/Generator.Tests/Passes/TestPasses.cs

@@ -71,9 +71,11 @@ namespace CppSharp.Generator.Tests.Passes
             passBuilder.RunPasses(pass => pass.VisitDeclaration(c));
 
             var para = (ParagraphComment) c.Comment.FullComment.Blocks[0];
-            var s = para.CommentToString(CommentKind.BCPLSlash);
+            var textGenerator = new TextGenerator();
+            textGenerator.Print(para, CommentKind.BCPLSlash);
 
-            Assert.That(s, Is.EqualTo("/// <summary>A simple test.</summary>"));
+            Assert.That(textGenerator.StringBuilder.ToString().Trim(),
+                Is.EqualTo("/// <summary>A simple test.</summary>"));
         }
 
         [Test]

src/Generator/Generators/CSharp/CSharpCommentPrinter.cs

@@ -9,13 +9,13 @@ namespace CppSharp.Generators.CSharp
 {
     public static class CSharpCommentPrinter
     {
-        public static string CommentToString(this Comment comment, CommentKind kind)
+        public static void Print(this ITextGenerator textGenerator, Comment comment, CommentKind kind)
         {
             var sections = new List<Section> { new Section(CommentElement.Summary) };
             GetCommentSections(comment, sections);
             foreach (var section in sections)
                 TrimSection(section);
-            return FormatComment(sections, kind);
+            FormatComment(textGenerator, sections, kind);
         }
 
         private static void GetCommentSections(this Comment comment, List<Section> sections)
@@ -163,10 +163,9 @@ namespace CppSharp.Generators.CSharp
             }
         }
 
-        private static string FormatComment(List<Section> sections, CommentKind kind)
+        private static void FormatComment(ITextGenerator textGenerator, List<Section> sections, CommentKind kind)
         {
             var commentPrefix = Comment.GetMultiLineCommentPrologue(kind);
-            var commentBuilder = new StringBuilder();
 
             sections.Sort((x, y) => x.Type.CompareTo(y.Type));
             var remarks = sections.Where(s => s.Type == CommentElement.Remarks).ToList();
@@ -182,26 +181,20 @@ namespace CppSharp.Generators.CSharp
                 var attributes = string.Empty;
                 if (section.Attributes.Any())
                     attributes = ' ' + string.Join(" ", section.Attributes);
-                commentBuilder.Append($"{commentPrefix} <{tag}{attributes}>");
+                textGenerator.Write($"{commentPrefix} <{tag}{attributes}>");
                 if (lines.Count == 1)
                 {
-                    commentBuilder.Append(lines[0]);
+                    textGenerator.Write(lines[0]);
                 }
                 else
                 {
-                    commentBuilder.AppendLine();
+                    textGenerator.NewLine();
                     foreach (var line in lines)
-                        commentBuilder.AppendLine($"{commentPrefix} <para>{line}</para>");
-                    commentBuilder.Append($"{commentPrefix} ");
+                        textGenerator.WriteLine($"{commentPrefix} <para>{line}</para>");
+                    textGenerator.Write($"{commentPrefix} ");
                 }
-                commentBuilder.AppendLine($"</{tag}>");
+                textGenerator.WriteLine($"</{tag}>");
             }
-            if (commentBuilder.Length > 0)
-            {
-                var newLineLength = Environment.NewLine.Length;
-                commentBuilder.Remove(commentBuilder.Length - newLineLength, newLineLength);
-            }
-            return commentBuilder.ToString();
         }
 
         private class Section

src/Generator/Generators/CodeGenerator.cs

@@ -132,7 +132,7 @@ namespace CppSharp.Generators
             if (comment.FullComment != null)
             {
                 PushBlock(BlockKind.BlockComment);
-                WriteLine(comment.FullComment.CommentToString(DocumentationCommentKind));
+                ActiveBlock.Text.Print(comment.FullComment, DocumentationCommentKind);
                 PopBlock();
                 return;
             }