脚本节点新增对Char字面量的支持

Serein.Script/Node/CharNode.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Script.Node
+{
+    internal class CharNode : ASTNode
+    {
+        public char Value { get; }
+        public CharNode(string value)
+        {
+            Value = char.Parse(value);
+        }
+    }
+}

Serein.Script/Serein.Script.csproj

@@ -8,10 +8,13 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <Compile Remove="bin\**" />
     <Compile Remove="TestExpression\**" />
     <Compile Remove="Tool\**" />
+    <EmbeddedResource Remove="bin\**" />
     <EmbeddedResource Remove="TestExpression\**" />
     <EmbeddedResource Remove="Tool\**" />
+    <None Remove="bin\**" />
     <None Remove="TestExpression\**" />
     <None Remove="Tool\**" />
   </ItemGroup>

Serein.Script/SereinScriptInterpreter.cs

@@ -442,6 +442,8 @@ namespace Serein.Script
                     return numberNode.Value; // 返回数值
                 case StringNode stringNode:
                     return stringNode.Value; // 返回字符串值
+                case CharNode charNode:
+                    return charNode.Value; // 返回Char
                 case IdentifierNode identifierNode:
                     return context.GetVarValue(identifierNode.Name);
                     //throw new SereinSciptException(identifierNode, "尝试使用值为null的变量");

Serein.Script/SereinScriptLexer.cs

@@ -11,7 +11,7 @@ namespace Serein.Script
         /// </summary>
         Null,
         /// <summary>
-        /// 标识符
+        /// 标识符（变量）
         /// </summary>
         Identifier,
         /// <summary>
@@ -27,6 +27,10 @@ namespace Serein.Script
         /// </summary>
         String,
         /// <summary>
+        /// Char字符
+        /// </summary>
+        Char,
+        /// <summary>
         /// 插值字符串
         /// </summary>
         InterpolatedString,
@@ -163,6 +167,20 @@ namespace Serein.Script
                 return ReadString();
             }
 
+            if (currentChar == '\'')
+            {
+                if (_input[_index + 2] == '\'')
+                {
+
+                    return ReadChar();
+                }
+                else
+                {
+                    throw new Exception($"not is char: {currentChar},in Line.{_row}.");
+                }
+            }
+
+
             // 跳过注释
             if (_input[_index] == '/' && _input[_index + 1] == '/')
             {
@@ -332,6 +350,23 @@ namespace Serein.Script
             //return new Token(TokenType.String, value.ToString());
         }
 
+        /// <summary>
+        /// 读取硬编码的Char字符
+        /// </summary>
+        /// <returns></returns>
+        /// <exception cref="Exception"></exception>
+        private Token ReadChar()
+        {
+            _index++;  // 跳过开头的引号
+            var start = _index;
+            var cahrValue = _input.Slice(start, 1).ToString();
+            _index++; // 跳过Char字符串后的引号
+            return CreateToken(TokenType.Char, cahrValue);
+
+            // _index++;  // 跳过结束的引号
+            //return new Token(TokenType.String, value.ToString());
+        }
+
         /// <summary>
         /// 获取对应行的代码文本
         /// </summary>

Serein.Script/SereinScriptParser.cs

@@ -210,7 +210,7 @@ namespace Serein.Script
         private ASTNode ParseLetAssignment()
         {
             _currentToken = _lexer.NextToken(); // Consume "let"
-            string variable = _currentToken.Value.ToString();
+            string variable = _currentToken.Value.ToString(); // 变量名称
             _currentToken = _lexer.NextToken(); // Consume identifier
             ASTNode value;
             if (_currentToken.Type == TokenType.Semicolon)
@@ -419,6 +419,7 @@ namespace Serein.Script
             _currentToken = _lexer.NextToken(); // consume "("
 
             var arguments = new List<ASTNode>();
+            bool isBreak = false;
             while (_currentToken.Type != TokenType.ParenthesisRight)
             {
                 var arg = Expression();
@@ -430,11 +431,12 @@ namespace Serein.Script
                 }
                 if (_currentToken.Type == TokenType.Semicolon)
                 {
+                    isBreak = true;
                     break; // consume ";"
                 }
             }
-
-            _currentToken = _lexer.NextToken(); // consume ")"
+            if(!isBreak)
+                _currentToken = _lexer.NextToken(); // consume ")"
 
            
             //var node = Statements[^1];
@@ -586,8 +588,14 @@ namespace Serein.Script
             if (_currentToken.Type == TokenType.String)
             {
                 var text = _currentToken.Value;
-                _currentToken = _lexer.NextToken();  // 消耗数字
-                return new StringNode(text.ToString()).SetTokenInfo(_currentToken);
+                _currentToken = _lexer.NextToken();  // 消耗字符串
+                return new StringNode(text).SetTokenInfo(_currentToken);
+            }
+            if (_currentToken.Type == TokenType.Char)
+            {
+                var text = _currentToken.Value;
+                _currentToken = _lexer.NextToken();  // 消耗Char
+                return new CharNode(text).SetTokenInfo(_currentToken);
             }
             if( _currentToken.Type == TokenType.InterpolatedString)
             {