public CatMetaDataBlock(AstMetaDataBlock node) : base("root", null) { CatMetaData cur = this; int nCurIndent = -1; for (int i = 0; i < node.children.Count; ++i) { AstMetaData tmp = node.children[i]; if (tmp is AstMetaDataLabel) { int nIndent; string sName; SplitLabel(tmp.ToString(), out nIndent, out sName); if (nIndent > nCurIndent) { cur = cur.NewChild(sName); } else if (nIndent == nCurIndent) { cur = cur.GetParent(); Trace.Assert(cur != null); cur = cur.NewChild(sName); } else { cur = cur.GetParent(); Trace.Assert(cur != null); cur = cur.GetParent(); Trace.Assert(cur != null); cur = cur.NewChild(sName); } nCurIndent = nIndent; } else if (tmp is AstMetaDataContent) { cur.AddContent(tmp.ToString()); } else { throw new Exception("invalid AstMetaDataBlock"); } } }