feat: Add support for providing custom double parser

Yellow-Dog-Man · Apr 9, 2024 · e13b9e3 · e13b9e3
1 parent 6320490
commit e13b9e3
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Showing 2 changed files with 16 additions and 5 deletions.
diff --git a/Elements.Quantity/Core/QuantityHelper.cs b/Elements.Quantity/Core/QuantityHelper.cs
@@ -6,11 +6,22 @@
 
 namespace Elements.Quantity
 {
+    public delegate bool NumberTryParseHandler<T>(string str, NumberStyles numberStyles, IFormatProvider formatProvider, out T value);
+
     public static class QuantityHelper
     {
         // CONFIGURATION
 
         public static CultureInfo Culture = System.Globalization.CultureInfo.InvariantCulture;
+        public static NumberTryParseHandler<double> CustomParser;
+
+        public static bool TryParse(string str, NumberStyles numberStyles, IFormatProvider formatProvider, out double value)
+        {
+            if (CustomParser != null)
+                return CustomParser(str, numberStyles, formatProvider, out value);
+            else
+                return double.TryParse(str, numberStyles, formatProvider, out value);
+        }
 
         // EXTENSION METHODS
 

diff --git a/Elements.Quantity/Core/Unit.cs b/Elements.Quantity/Core/Unit.cs
@@ -36,7 +36,7 @@ public ICollection<string> GetUnitNames()
             var shortBaseNames = t.GetShortBaseNames();
             var longBaseNames  = t.GetLongBaseNames();
 
-            // cache them - this function will be called by the lirary initializer
+            // cache them - this function will be called by the library initializer
             shortBaseName = shortBaseNames[0];
             longBaseName = longBaseNames[0];
 
@@ -46,8 +46,8 @@ public ICollection<string> GetUnitNames()
                     {
                         string unitName = string.Format(name, basename).Trim();
 
-                        // need to check - some combinations result in idential names
-                        if (!list.Contains(unitName))
+                        // need to check - some combinations result in identical names
+                        if (!list.Contains(unitName)) 
                             list.Add(unitName);
                     }
 
@@ -121,7 +121,7 @@ static bool ParseIntern(string str, NumberStyles numberStyles, IFormatProvider f
 
             bool noUnit = string.IsNullOrWhiteSpace(unitstr);
 
-            if(!double.TryParse(valstr, numberStyles, formatProvider, out double val))
+            if(!QuantityHelper.TryParse(valstr, numberStyles, formatProvider, out double val))
             {
                 if (throwOnFail)
                     throw new FormatException("Number input string was not in a correct format");
@@ -256,5 +256,5 @@ public string FormatAs(T q, string formatNum = null, bool longName = false,
         }
     }
 
-
+    
 }