fix: #493 handle newlines in strings emitted into typescript

CHANGELOG.md

@@ -13,6 +13,7 @@
 
 - `c-select` `open-on-clear` prop once again functions as expected.
 - `c-select` now closes when changing focus to other elements on the page
+- Multi-line strings now emit correctly into generated metadata (e.g. a multi-line description for a property)
 
 # 5.2.1
 

src/IntelliTect.Coalesce.Tests/TargetClasses/TestDbContext/ComplexModel.cs

@@ -70,9 +70,14 @@ public class ComplexModel
         public string AdminReadableString { get; set; }
 
         [Restrict<AuthenticatedRestriction>]
+        [Display(Description = """
+            This is a multiline string in an attribute.
+            This is a second line in the string.
+            """)]
         public string RestrictedString { get; set; }
 
         [Restrict<AuthenticatedRestriction>]
+        [Display(Description = "This is a multiline string\n via explicit escaped newline")]
         public string RestrictInit { get; init; }
 
         [Read(RoleNames.Admin)]

src/IntelliTect.Coalesce/Utilities/StringExtensions.cs

@@ -131,6 +131,8 @@ public static string ToCamelCase(this string s)
         [return: System.Diagnostics.CodeAnalysis.NotNullIfNotNull("str")]
         public static string? EscapeStringLiteralForTypeScript(this string? str) => str?
             .Replace(@"\", @"\\")
+            .Replace("\r", @"\r")
+            .Replace("\n", @"\n")
             .Replace("\"", "\\\"");
 
         [return: System.Diagnostics.CodeAnalysis.NotNullIfNotNull("str")]