Local Notion related changes

src/Hydrogen/Extensions/IEnumerableExtensions.cs

@@ -739,6 +739,28 @@ public static IEnumerable<Tuple<T, int>> WithIndex<T>(this IEnumerable<T> items)
 		return items.Select((item, index) => Tuple.Create(item, index));
 	}
 
+	public static (T, IEnumerable<T>) SplitTail<T>(this IEnumerable<T> source) {
+		var enumerator = source.GetEnumerator();
+		T head;
+		IEnumerable<T> tail;
+		if (enumerator.MoveNext()) {
+			head = enumerator.Current;
+			tail = EnumerateTail();
+		} else {
+			head = default(T);
+			tail = Enumerable.Empty<T>();
+		}
+
+		return (head, tail);
+
+		IEnumerable<T> EnumerateTail() {
+			while (enumerator.MoveNext()) {
+				yield return enumerator.Current;
+			}
+			enumerator.Dispose();
+		}
+	}
+
 	public static IEnumerable<EnumeratedItem<T>> WithDescriptions<T>(this IEnumerable<T> items) {
 		// To avoid evaluating the whole collection up-front (which may be undesirable, for example
 		// if the collection contains infinitely many members), read-ahead just one item at a time.

src/Hydrogen/Extensions/StringExtensions.cs

@@ -226,10 +226,10 @@ public static string TrimWithCapture(this string value, out string trimmedStart,
 		return value.Trim();
 	}
 
-	public static string ReplaceMany(this string inputString, params string[] subStrings) {
+	public static string ReplaceMany(this string inputString, params (string Match, string Replacement)[] replacements) {
 		var sb = new StringBuilder(inputString);
-		foreach (var subString in subStrings)
-			sb.Replace(subString, string.Empty);
+		foreach (var replacement in replacements)
+			sb.Replace(replacement.Match, replacement.Replacement);
 		return sb.ToString();
 	}
 

src/Hydrogen/Hydrogen.csproj

@@ -19,5 +19,13 @@
 		<LangVersion>latest</LangVersion>
 	</PropertyGroup>
 
+	<ItemGroup>
+	  <None Remove="Text\StopWordList.txt" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <EmbeddedResource Include="Text\StopWordList.txt" />
+	</ItemGroup>
+
 
 </Project>

src/Hydrogen/IO/FileSystemTool.cs

@@ -552,4 +552,8 @@ public static bool IsDirectoryEmpty(string getParentDirectoryPath)
 	public static int CountDirectoryContents(string directory)
 		=> GetDirectoryContents(directory, out _, out _);
 
+	public static void SplitFilePath(string filepath, out string folder, out string fileName) {
+		folder = Path.GetDirectoryName(filepath);
+		fileName = Path.GetFileName(filepath);
+	}
 }

src/Hydrogen/Network/UrlTool.cs

@@ -220,11 +220,17 @@ private static IEnumerable<KeyValuePair<string, string>> RemoveEmptyValueQueryPa
 
 	public static string Combine(string url1, string url2) {
 		Guard.ArgumentNotNullOrWhitespace(url1, nameof(url1));
-		Guard.ArgumentNotNullOrWhitespace(url2, nameof(url2));
+		if (string.IsNullOrWhiteSpace(url2))
+			return url1;
 		Guard.Argument(!url2.StartsWithAny(StringComparison.InvariantCultureIgnoreCase, "http:", "https:"), nameof(url2), "Cannot be appended since contains protocol");
 		return url1.TrimEnd('/') + '/' + url2.TrimStart('/');
 	}
 
+	public static string Combine(IEnumerable<string> urlParts) {
+		var (head, tail) = urlParts.SplitTail();
+		return Combine(head, tail.Select(x => x.Trim('/')).ToDelimittedString("/"));
+	}
+
 	public static string ToQueryString(Dictionary<string, string> data) {
 		StringBuilder sb = new StringBuilder();
 		int pos = 0;