2 files changed, 50 insertions, 1 deletions
diff --git a/src/SMAPI/Utilities/PathUtilities.cs b/src/SMAPI/Utilities/PathUtilities.cs
new file mode 100644
index 00000000..ea134468
--- /dev/null
+++ b/src/SMAPI/Utilities/PathUtilities.cs
@@ -0,0 +1,45 @@
+using System.Diagnostics.Contracts;
+using ToolkitPathUtilities = StardewModdingAPI.Toolkit.Utilities.PathUtilities;
+
+namespace StardewModdingAPI.Utilities
+{
+    /// <summary>Provides utilities for normalizing file paths.</summary>
+    public static class PathUtilities
+    {
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Get the segments from a path (e.g. <c>/usr/bin/example</c> => <c>usr</c>, <c>bin</c>, and <c>example</c>).</summary>
+        /// <param name="path">The path to split.</param>
+        /// <param name="limit">The number of segments to match. Any additional segments will be merged into the last returned part.</param>
+        [Pure]
+        public static string[] GetSegments(string path, int? limit = null)
+        {
+            return ToolkitPathUtilities.GetSegments(path, limit);
+        }
+
+        /// <summary>Normalize path separators in a file path.</summary>
+        /// <param name="path">The file path to normalize.</param>
+        [Pure]
+        public static string NormalizePathSeparators(string path)
+        {
+            return ToolkitPathUtilities.NormalizePathSeparators(path);
+        }
+
+        /// <summary>Get whether a path is relative and doesn't try to climb out of its containing folder (e.g. doesn't contain <c>../</c>).</summary>
+        /// <param name="path">The path to check.</param>
+        [Pure]
+        public static bool IsSafeRelativePath(string path)
+        {
+            return ToolkitPathUtilities.IsSafeRelativePath(path);
+        }
+
+        /// <summary>Get whether a string is a valid 'slug', containing only basic characters that are safe in all contexts (e.g. filenames, URLs, etc).</summary>
+        /// <param name="str">The string to check.</param>
+        [Pure]
+        public static bool IsSlug(string str)
+        {
+            return ToolkitPathUtilities.IsSlug(str);
+        }
+    }
+}
diff --git a/src/SMAPI/Utilities/SDate.cs b/src/SMAPI/Utilities/SDate.cs
index 03230334..cd075dcc 100644
--- a/src/SMAPI/Utilities/SDate.cs
+++ b/src/SMAPI/Utilities/SDate.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Linq;
+using Newtonsoft.Json;
 using StardewModdingAPI.Framework;
 using StardewValley;
 
@@ -35,15 +36,18 @@ namespace StardewModdingAPI.Utilities
 
         /// <summary>The index of the season (where 0 is spring, 1 is summer, 2 is fall, and 3 is winter).</summary>
         /// <remarks>This is used in some game calculations (e.g. seasonal game sprites) and methods (e.g. <see cref="Utility.getSeasonNameFromNumber"/>).</remarks>
+        [JsonIgnore]
         public int SeasonIndex { get; }
 
         /// <summary>The year.</summary>
         public int Year { get; }
 
         /// <summary>The day of week.</summary>
+        [JsonIgnore]
         public DayOfWeek DayOfWeek { get; }
 
         /// <summary>The number of days since the game began (starting at 1 for the first day of spring in Y1).</summary>
+        [JsonIgnore]
         public int DaysSinceStart { get; }
 
 
@@ -62,6 +66,7 @@ namespace StardewModdingAPI.Utilities
         /// <param name="season">The season name.</param>
         /// <param name="year">The year.</param>
         /// <exception cref="ArgumentException">One of the arguments has an invalid value (like day 35).</exception>
+        [JsonConstructor]
         public SDate(int day, string season, int year)
             : this(day, season, year, allowDayZero: false) { }
 
@@ -264,7 +269,6 @@ namespace StardewModdingAPI.Utilities
             this.Year = year;
             this.DayOfWeek = this.GetDayOfWeek(day);
             this.DaysSinceStart = this.GetDaysSinceStart(day, season, year);
-
         }
 
         /// <summary>Get whether a date represents 0 spring Y1, which is the date during the in-game intro.</summary>