🚸 Better support quoted strings and escaped quotes in strings +semver…

…:minor fix #22

VCF.Core/Common/Utility.cs

@@ -9,32 +9,68 @@ namespace VampireCommandFramework.Common;
 internal static class Utility
 {
 
-	// also todo: maybe bad code to rewrite, look later
-	internal static IEnumerable<string> GetParts(string input)
+
+	/// <summary>
+	/// This method splits the input string into parts based on spaces, removing whitespace,
+	/// but preserving quoted strings as literal parts.
+	/// </summary>
+	/// <remarks>
+	/// This should support escaping quotes with \
+	/// </remarks>
+	internal static List<string> GetParts(string input)
 	{
-		var parts = input.Split(" ", StringSplitOptions.RemoveEmptyEntries);
-		for (var i = 0; i < parts.Length; i++)
+		var parts = new List<string>();
+		if (string.IsNullOrWhiteSpace(input)) return parts;
+
+		bool inQuotes = false;
+		var sb = new StringBuilder();
+
+		for (int i = 0; i < input.Length; i++)
 		{
-			if (parts[i].StartsWith('"'))
+			char ch = input[i];
+
+			// Handle escaped quotes
+			if (ch == '\\' && i + 1 < input.Length)
 			{
-				parts[i] = parts[i].TrimStart('"');
-				for (var start = i++; i < parts.Length; i++)
+				char nextChar = input[i + 1];
+				if (nextChar == '"')
 				{
-					if (parts[i].EndsWith('"'))
-					{
-						parts[i] = parts[i].TrimEnd('"');
-						yield return string.Join(" ", parts[start..(i + 1)]);
-						break;
-					}
+					sb.Append(nextChar);
+					i++; // Skip the escaped quote
+					continue;
+				}
+			}
+
+			if (ch == '"')
+			{
+				inQuotes = !inQuotes;
+				continue;
+			}
+
+			if (ch == ' ' && !inQuotes)
+			{
+				if (sb.Length > 0)
+				{
+					parts.Add(sb.ToString());
+					sb.Clear();
 				}
 			}
 			else
 			{
-				yield return parts[i];
+				sb.Append(ch);
 			}
 		}
+
+		if (sb.Length > 0)
+		{
+			parts.Add(sb.ToString());
+		}
+
+		return parts;
 	}
 
+
+
 	internal static void InternalError(this ICommandContext ctx) => ctx.SysReply("An internal error has occurred.");
 
 	internal static void SysReply(this ICommandContext ctx, string input) => ctx.Reply($"[vcf] ".Color(Color.Primary) + input.Color(Color.White));
@@ -70,7 +106,7 @@ internal static string[] SplitIntoPages(string rawText, int pageSize = MAX_MESSA
 		var page = new StringBuilder();
 		var rawLines = rawText.Split(Environment.NewLine); // todo: does this work on both platofrms?
 		var lines = new List<string>();
-		
+
 		// process rawLines -> lines of length <= pageSize
 		foreach (var line in rawLines)
 		{
@@ -97,7 +133,7 @@ internal static string[] SplitIntoPages(string rawText, int pageSize = MAX_MESSA
 				lines.Add(line);
 			}
 		}
-		
+
 		// batch as many lines together into pageSize
 		foreach (var line in lines)
 		{

VCF.Tests/GetPartsTests.cs

@@ -6,22 +6,72 @@ namespace VCF.Tests;
 public class GetPartsTests
 {
 	[Test]
-	public void GetParts_No_Quotes()
+	public void GetParts_Empty()
 	{
 		var empty = Array.Empty<string>();
-		Assert.That(Utility.GetParts("blah blah"), Is.EqualTo(new[] { "blah", "blah" }));
 		Assert.That(Utility.GetParts(""), Is.EqualTo(empty));
 		Assert.That(Utility.GetParts(" "), Is.EqualTo(empty));
+		Assert.That(Utility.GetParts(null), Is.EqualTo(empty));
+	}
+
+	[Test]
+	public void GetParts_No_Quotes()
+	{
+		Assert.That(Utility.GetParts("blah blah"), Is.EqualTo(new[] { "blah", "blah" }));
 		Assert.That(Utility.GetParts("a "), Is.EqualTo(new[] { "a" }));
 		Assert.That(Utility.GetParts(" a"), Is.EqualTo(new[] { "a" }));
 		Assert.That(Utility.GetParts(" a  b    c "), Is.EqualTo(new[] { "a", "b", "c" }));
 	}
 
 	[Test]
-	public void GetParts_Quotes()
+	public void GetParts_Quotes_Preserves_Spacing()
+	{
+		Assert.That(Utility.GetParts(" a  \" b    c \""), Is.EqualTo(new[] { "a", " b    c " }));
+	}
+
+	[Test]
+	public void GetParts_Quotes_Many()
+	{
+		Assert.That(Utility.GetParts(" \"a\" \" b    c \" not  quoted "), Is.EqualTo(new[] { "a", " b    c ", "not", "quoted" }));
+	}
+
+	[Test]
+	public void GetParts_Quote_SingleTerm()
 	{
-		Assert.That(Utility.GetParts("a \"b c\""), Is.EqualTo(new[] { "a", "b c" }));
-		// TODO: Consider if this should be the result, it fails now
-		//	Assert.That(CommandRegistry.GetParts(" a  \" b    c \""), Is.EqualTo(new[] { "a", " b    c " }));
+		Assert.That(Utility.GetParts("a"), Is.EqualTo(new[] { "a" }));
+		Assert.That(Utility.GetParts("\"a\""), Is.EqualTo(new[] { "a" }));
+		Assert.That(Utility.GetParts("\"abc\""), Is.EqualTo(new[] { "abc" }));
+	}
+
+	[Test]
+	public void GetParts_Quote_SingleTerm_Positional()
+	{
+		Assert.That(Utility.GetParts("a \"b\" c"), Is.EqualTo(new[] { "a", "b", "c" }));
+		Assert.That(Utility.GetParts("\"a\" b c"), Is.EqualTo(new[] { "a", "b", "c" }));
+		Assert.That(Utility.GetParts("a b \"c\""), Is.EqualTo(new[] { "a", "b", "c" }));
+	}
+
+	[Test]
+	public void GetParts_Escape_Quotes()
+	{
+		Assert.That(Utility.GetParts("\"I'm like \\\"O'rly?\\\", they're like \\\"ya rly\\\"\""), Is.EqualTo(new[] { "I'm like \"O'rly?\", they're like \"ya rly\"" }));
+		Assert.That(Utility.GetParts(@"a\b\\""c\"""), Is.EqualTo(new[] { @"a\b\""c""" }));
+	}
+
+	[Test]
+	public void GetParts_Escape_Slashliteral()
+	{
+		Assert.That(Utility.GetParts(@"\"), Is.EqualTo(new[] { @"\" }));
+		Assert.That(Utility.GetParts(@"\\\"), Is.EqualTo(new[] { @"\\\" }));
+
+		Assert.That(Utility.GetParts("\\a"), Is.EqualTo(new[] { "\\a" }));
+		Assert.That(Utility.GetParts("\\\""), Is.EqualTo(new[] { "\"" }));
+	}
+
+	[Test]
+	public void GetParts_Escape_Grouping()
+	{	
+		Assert.That(Utility.GetParts(@"\ \"), Is.EqualTo(new[] { @"\", @"\" }));
+		Assert.That(Utility.GetParts(@"a\b  \  c"), Is.EqualTo(new[] { @"a\b", @"\", "c" }));
 	}
 }