feat: init

src/index.ts

@@ -0,0 +1,50 @@
+import { Lexer } from './lexer';
+import { Parser } from './parser';
+import { QuestInterpreter } from './interpreter';
+import type { QuestProgram } from './ast';
+
+/**
+ * Main QuestLang processor
+ */
+export class QuestLang {
+  /**
+   * Parse QuestLang source code and return AST
+   */
+  public static parse(source: string): QuestProgram {
+    const lexer = new Lexer(source);
+    const tokens = lexer.tokenize();
+    
+    const parser = new Parser(tokens);
+    return parser.parse();
+  }
+
+  /**
+   * Create interpreter from source code
+   */
+  public static interpret(source: string): QuestInterpreter {
+    const ast = this.parse(source);
+    return new QuestInterpreter(ast);
+  }
+
+  /**
+   * Validate QuestLang source code
+   */
+  public static validate(source: string): { isValid: boolean; errors: string[] } {
+    try {
+      const interpreter = this.interpret(source);
+      return interpreter.validate();
+    } catch (error) {
+      return {
+        isValid: false,
+        errors: [error instanceof Error ? error.message : 'Unknown parsing error']
+      };
+    }
+  }
+}
+
+// Re-export main classes
+export { Lexer } from './lexer';
+export { Parser } from './parser';
+export { QuestInterpreter } from './interpreter';
+export * from './ast';
+export * from './types';