From 7249ca3a6fdf51f6b7ea66ac6854edd5e02ae5ec Mon Sep 17 00:00:00 2001
From: tanaka takashi <isazaka@gmail.com>
Date: Wed, 15 Jul 2026 20:00:24 +0900
Subject: feat: MMLパーサーと意味解析を厳格化
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- ppmckの終端分岐付きリピートとL制御トラックを実装
- case、構文構造、音長、エフェクト値域の検証を強化
- Pyxel拡張コマンドのarityと参照検証を追加
- リピート展開上限と構文・意味エラー時の合成停止を追加
- BNF、設計書、適合監査、回帰テストを更新
---
 src/mml_composemusic_mcp/ast_nodes.py | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/mml_composemusic_mcp/ast_nodes.py')

diff --git a/src/mml_composemusic_mcp/ast_nodes.py b/src/mml_composemusic_mcp/ast_nodes.py
index dc85e79..5eedbbc 100644
--- a/src/mml_composemusic_mcp/ast_nodes.py
+++ b/src/mml_composemusic_mcp/ast_nodes.py
@@ -160,6 +160,13 @@ class RepeatStartStmt(ASTNode):
     pass
 
 
+@dataclass
+class RepeatBreakStmt(ASTNode):
+    """Last-pass break marker (|) inside a ppmck repeat."""
+
+    pass
+
+
 @dataclass
 class RepeatEndStmt(ASTNode):
     """End of repeat section (] with optional count)."""
@@ -333,6 +340,7 @@ Statement = (
     | DetuneCmdStmt
     | RelativeVolumeStmt
     | RepeatStartStmt
+    | RepeatBreakStmt
     | RepeatEndStmt
     | BarStmt
     | ExtCmdStmt
-- 
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