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diff --git a/engines/glk/archetype/statement.h b/engines/glk/archetype/statement.h
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+++ b/engines/glk/archetype/statement.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef ARCHETYPE_STATEMENT
+#define ARCHETYPE_STATEMENT
+
+#include "glk/archetype/expression.h"
+#include "glk/archetype/linked_list.h"
+
+namespace Glk {
+namespace Archetype {
+
+enum StatementKind {
+	COMPOUND, ST_EXPR, ST_IF, ST_CASE, ST_FOR, ST_WHILE, ST_BREAK, ST_CREATE,
+	ST_DESTROY, ST_WRITE, ST_WRITES, ST_STOP, CONT_SEQ, END_SEQ
+};
+
+union StatementType;
+typedef StatementType *StatementPtr;
+
+struct StmtCompound {
+	ListType statements;
+};
+
+struct StmtExpr {
+	ExprTree expression;
+};
+
+struct StmtIf {
+	ExprTree condition;
+	StatementPtr then_branch;
+	StatementPtr else_branch;
+};
+
+struct StmtCase {
+	ExprTree test_expr;
+	ListType cases;
+};
+
+struct StmtCreate {
+	int archetype;
+	ExprTree new_name;
+};
+
+struct StmtDestroy {
+	ExprTree victim;
+};
+
+struct StmtLoop {
+	ExprTree selection;
+	StatementPtr action;
+};
+
+struct StmtWrite {
+	ListType print_list;
+};
+
+union StatementType {
+	StatementKind _kind;
+	StmtCompound _compound;
+	StmtExpr _expr;
+	StmtIf _if;
+	StmtCase _case;
+	StmtCreate _create;
+	StmtDestroy _destroy;
+	StmtLoop _loop;
+	StmtWrite _write;
+};
+
+struct CasePairType {
+	ExprTree value;
+	StatementPtr action;
+};
+typedef CasePairType *CasePairPtr;
+
+} // End of namespace Archetype
+} // End of namespace Glk
+
+#endif