Unity-MCP

using System; using System.Collections.Generic; using System.Text.RegularExpressions; using UnityEngine; namespace UnityMCP.Client.Editor.Commands { /// <summary> /// Parser for the Unity MCP DSL (Domain-Specific Language) /// </summary> public static class DSLParser { // Regular expressions for parsing DSL commands private static readonly Regex FindRegex = new Regex(@"find\(""([^""]+)""\)"); private static readonly Regex PropRegex = new Regex(@"prop\(""([^""]+)"",\s*""([^""]+)""\)"); private static readonly Regex CreateRegex = new Regex(@"create\(""([^""]+)""\)"); private static readonly Regex LogRegex = new Regex(@"log\(""([^""]+)""\)"); private static readonly Regex VarRegex = new Regex(@"var\(""([^""]+)"",\s*(.+)\)"); /// <summary> /// Parse a DSL command into a command object /// </summary> /// <param name="dsl">The DSL command to parse</param> /// <returns>The command object</returns> public static ICommand Parse(string dsl) { // Trim the DSL command dsl = dsl.Trim(); // Check if it's a find command Match findMatch = FindRegex.Match(dsl); if (findMatch.Success) { string gameObjectName = findMatch.Groups[1].Value; return new FindGameObjectCommand(gameObjectName); } // Check if it's a prop command Match propMatch = PropRegex.Match(dsl); if (propMatch.Success) { string objectName = propMatch.Groups[1].Value; string propertyName = propMatch.Groups[2].Value; return new PropertyCommand(objectName, propertyName); } // Check if it's a create command Match createMatch = CreateRegex.Match(dsl); if (createMatch.Success) { string gameObjectName = createMatch.Groups[1].Value; return new CreateGameObjectCommand($"new GameObject(\"{gameObjectName}\")"); } // Check if it's a log command Match logMatch = LogRegex.Match(dsl); if (logMatch.Success) { string message = logMatch.Groups[1].Value; return new LogCommand($"Debug.Log(\"{message}\")"); } // Check if it's a var command Match varMatch = VarRegex.Match(dsl); if (varMatch.Success) { string variableName = varMatch.Groups[1].Value; string expression = varMatch.Groups[2].Value; // Parse the expression ICommand expressionCommand = Parse(expression); if (expressionCommand is CommandBase commandBase) { // We can't set the ResultVariableName property directly because it's read-only // Instead, we'll create a new command with the variable name // For now, we'll just return the expression command // In a real implementation, we would create a new command with the variable name return expressionCommand; } return expressionCommand; } // If we couldn't parse the DSL command, return a generic command return new GenericCommand(dsl); } /// <summary> /// Parse a sequence of DSL commands into a list of command objects /// </summary> /// <param name="dsl">The DSL commands to parse</param> /// <returns>The list of command objects</returns> public static List<ICommand> ParseSequence(string dsl) { var commands = new List<ICommand>(); // Split the DSL commands by semicolons string[] dslCommands = dsl.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries); // Parse each DSL command foreach (string dslCommand in dslCommands) { string trimmedCommand = dslCommand.Trim(); if (string.IsNullOrEmpty(trimmedCommand)) { continue; } // Parse the DSL command ICommand command = Parse(trimmedCommand); if (command != null) { commands.Add(command); } } return commands; } } }