v1: executing-plans 模式生成，54 文件 1320 行 Python

preprocessor.py

@@ -0,0 +1,23 @@
+import re
+from pathlib import Path
+
+
+class CopybookPreprocessor:
+    def __init__(self, search_paths: list[str] | None = None):
+        self.search_paths = search_paths or ["./copybooks"]
+
+    def expand(self, source_text: str) -> str:
+        pattern = re.compile(
+            r'^       COPY\s+(\w+(?:-\w+)?)\s*(?:\.|$.|$)',
+            re.MULTILINE)
+        return pattern.sub(self._replace_copy, source_text)
+
+    def _replace_copy(self, match):
+        name = match.group(1).strip()
+        for path in self.search_paths:
+            for ext in ["", ".cpy", ".cbl", ".copy"]:
+                p = Path(path) / f"{name}{ext}"
+                if p.exists():
+                    content = p.read_text()
+                    return f"      *> COPY {name}\n{content}\n      *> END COPY {name}"
+        return f"      *> COPY {name} NOT FOUND"