Upload from upload_mods.ps1

Scripts/Utilities/ExpressionParser/Sprache/ParserOfT.cs

@@ -0,0 +1,54 @@
+using System;
+
+namespace Sprache
+{
+    /// <summary>
+    /// Represents a parser.
+    /// </summary>
+    /// <typeparam name="T">The type of the result.</typeparam>
+    /// <param name="input">The input to parse.</param>
+    /// <returns>The result of the parser.</returns>
+    public delegate IResult<T> Parser<out T>(IInput input);
+
+    /// <summary>
+    /// Contains some extension methods for <see cref="Parser&lt;T&gt;" />.
+    /// </summary>
+    public static class ParserExtensions
+    {
+        /// <summary>
+        /// Tries to parse the input without throwing an exception.
+        /// </summary>
+        /// <typeparam name="T">The type of the result.</typeparam>
+        /// <param name="parser">The parser.</param>
+        /// <param name="input">The input.</param>
+        /// <returns>The result of the parser</returns>
+        public static IResult<T> TryParse<T>(this Parser<T> parser, string input)
+        {
+            if (parser == null) throw new ArgumentNullException(nameof(parser));
+            if (input == null) throw new ArgumentNullException(nameof(input));
+
+            return parser(new Input(input));
+        }
+
+        /// <summary>
+        /// Parses the specified input string.
+        /// </summary>
+        /// <typeparam name="T">The type of the result.</typeparam>
+        /// <param name="parser">The parser.</param>
+        /// <param name="input">The input.</param>
+        /// <returns>The result of the parser.</returns>
+        /// <exception cref="Sprache.ParseException">It contains the details of the parsing error.</exception>
+        public static T Parse<T>(this Parser<T> parser, string input)
+        {
+            if (parser == null) throw new ArgumentNullException(nameof(parser));
+            if (input == null) throw new ArgumentNullException(nameof(input));
+
+            var result = parser.TryParse(input);
+            
+            if(result.WasSuccessful)
+                return result.Value;
+
+            throw new ParseException(result.ToString(), Position.FromInput(result.Remainder));
+        }
+    }
+}