Move default alias map into a separate source file

src/Discord.Net.Commands/CommandServiceConfig.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 
 namespace Discord.Commands
 {
@@ -20,75 +20,7 @@ namespace Discord.Commands
 
         /// <summary> Collection of aliases that can wrap strings for command parsing. 
         /// represents the opening quotation mark and the value is the corresponding closing mark.</summary>
-        public Dictionary<char, char> QuotationMarkAliasMap { get; set; }
-        = new Dictionary<char, char> {
-            {'\"', '\"' },
-            {'«', '»' },
-            {'‘', '’' },
-            {'“', '”' },
-            {'„', '‟' },
-            {'‹', '›' },
-            {'‚', '‛' },
-            {'《', '》' },
-            {'〈', '〉' },
-            {'「', '」' },
-            {'『', '』' },
-            {'〝', '〞' },
-            {'﹁', '﹂' },
-            {'﹃', '﹄' },
-            {'＂', '＂' },
-            {'＇', '＇' },
-            {'｢', '｣' },
-            {'(', ')' },
-            {'༺', '༻' },
-            {'༼', '༽' },
-            {'᚛', '᚜' },
-            {'⁅', '⁆' },
-            {'⌈', '⌉' },
-            {'⌊', '⌋' },
-            {'❨', '❩' },
-            {'❪', '❫' },
-            {'❬', '❭' },
-            {'❮', '❯' },
-            {'❰', '❱' },
-            {'❲', '❳' },
-            {'❴', '❵' },
-            {'⟅', '⟆' },
-            {'⟦', '⟧' },
-            {'⟨', '⟩' },
-            {'⟪', '⟫' },
-            {'⟬', '⟭' },
-            {'⟮', '⟯' },
-            {'⦃', '⦄' },
-            {'⦅', '⦆' },
-            {'⦇', '⦈' },
-            {'⦉', '⦊' },
-            {'⦋', '⦌' },
-            {'⦍', '⦎' },
-            {'⦏', '⦐' },
-            {'⦑', '⦒' },
-            {'⦓', '⦔' },
-            {'⦕', '⦖' },
-            {'⦗', '⦘' },
-            {'⧘', '⧙' },
-            {'⧚', '⧛' },
-            {'⧼', '⧽' },
-            {'⸂', '⸃' },
-            {'⸄', '⸅' },
-            {'⸉', '⸊' },
-            {'⸌', '⸍' },
-            {'⸜', '⸝' },
-            {'⸠', '⸡' },
-            {'⸢', '⸣' },
-            {'⸤', '⸥' },
-            {'⸦', '⸧' },
-            {'⸨', '⸩' },
-            {'【', '】'},
-            {'〔', '〕' },
-            {'〖', '〗' },
-            {'〘', '〙' },
-            {'〚', '〛' }
-        };
+        public Dictionary<char, char> QuotationMarkAliasMap { get; set; } = QuotationAliasUtils.GetDefaultAliasMap;
 
         /// <summary> Determines whether extra parameters should be ignored. </summary>
         public bool IgnoreExtraArgs { get; set; } = false;

src/Discord.Net.Commands/Utilities/QuotationAliasUtils.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Globalization;
+
+namespace Discord.Commands
+{
+    /// <summary>
+    /// Utility methods for generating matching pairs of unicode quotation marks for CommandServiceConfig
+    /// </summary>
+    internal static class QuotationAliasUtils
+    {
+        /// <summary>
+        /// Generates an IEnumerable of characters representing open-close pairs of
+        /// quotation punctuation.
+        /// </summary>
+        internal static Dictionary<char, char> GetDefaultAliasMap
+        {
+            get
+            {
+                // Output of a gist provided by https://gist.github.com/ufcpp
+                // https://gist.github.com/ufcpp/5b2cf9a9bf7d0b8743714a0b88f7edc5
+                // This was not used for the implementation because of incompatibility with netstandard1.1
+                return new Dictionary<char, char> {
+                    {'\"', '\"' },
+                    {'«', '»' },
+                    {'‘', '’' },
+                    {'“', '”' },
+                    {'„', '‟' },
+                    {'‹', '›' },
+                    {'‚', '‛' },
+                    {'《', '》' },
+                    {'〈', '〉' },
+                    {'「', '」' },
+                    {'『', '』' },
+                    {'〝', '〞' },
+                    {'﹁', '﹂' },
+                    {'﹃', '﹄' },
+                    {'＂', '＂' },
+                    {'＇', '＇' },
+                    {'｢', '｣' },
+                    {'(', ')' },
+                    {'༺', '༻' },
+                    {'༼', '༽' },
+                    {'᚛', '᚜' },
+                    {'⁅', '⁆' },
+                    {'⌈', '⌉' },
+                    {'⌊', '⌋' },
+                    {'❨', '❩' },
+                    {'❪', '❫' },
+                    {'❬', '❭' },
+                    {'❮', '❯' },
+                    {'❰', '❱' },
+                    {'❲', '❳' },
+                    {'❴', '❵' },
+                    {'⟅', '⟆' },
+                    {'⟦', '⟧' },
+                    {'⟨', '⟩' },
+                    {'⟪', '⟫' },
+                    {'⟬', '⟭' },
+                    {'⟮', '⟯' },
+                    {'⦃', '⦄' },
+                    {'⦅', '⦆' },
+                    {'⦇', '⦈' },
+                    {'⦉', '⦊' },
+                    {'⦋', '⦌' },
+                    {'⦍', '⦎' },
+                    {'⦏', '⦐' },
+                    {'⦑', '⦒' },
+                    {'⦓', '⦔' },
+                    {'⦕', '⦖' },
+                    {'⦗', '⦘' },
+                    {'⧘', '⧙' },
+                    {'⧚', '⧛' },
+                    {'⧼', '⧽' },
+                    {'⸂', '⸃' },
+                    {'⸄', '⸅' },
+                    {'⸉', '⸊' },
+                    {'⸌', '⸍' },
+                    {'⸜', '⸝' },
+                    {'⸠', '⸡' },
+                    {'⸢', '⸣' },
+                    {'⸤', '⸥' },
+                    {'⸦', '⸧' },
+                    {'⸨', '⸩' },
+                    {'【', '】'},
+                    {'〔', '〕' },
+                    {'〖', '〗' },
+                    {'〘', '〙' },
+                    {'〚', '〛' }
+                };
+            }
+        }
+    }
+}