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+/*
+ * Copyright (c) 2003-2008, John Wiegley.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of New Artisans LLC nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _ACCOUNT_H
+#define _ACCOUNT_H
+
+#include "utils.h"
+
+namespace ledger {
+
+class account_t;
+
+typedef std::map<const string, account_t *> accounts_map;
+
+class account_t
+{
+ public:
+  typedef unsigned long ident_t;
+
+  account_t *	   parent;
+  string	   name;
+  optional<string> note;
+  unsigned short   depth;
+  accounts_map	   accounts;
+
+  mutable void *  data;
+  mutable ident_t ident;
+  mutable string  _fullname;
+
+  account_t(account_t *   _parent = NULL,
+	    const string& _name   = "",
+	    const optional<string>& _note = none)
+    : parent(_parent), name(_name), note(_note),
+      depth(parent ? parent->depth + 1 : 0), data(NULL), ident(0) {
+    TRACE_CTOR(account_t, "account_t *, const string&, const string&");
+  }
+  account_t(const account_t& other)
+    : parent(other.parent),
+      name(other.name),
+      note(other.note),
+      depth(other.depth),
+      accounts(other.accounts),
+      data(NULL),
+      ident(0) {
+    TRACE_CTOR(account_t, "copy");
+    assert(other.data == NULL);
+    assert(other.ident == 0);
+  }
+  ~account_t();
+
+  operator string() const {
+    return fullname();
+  }
+  string fullname() const;
+
+  void add_account(account_t * acct) {
+    accounts.insert(accounts_map::value_type(acct->name, acct));
+  }
+  bool remove_account(account_t * acct) {
+    accounts_map::size_type n = accounts.erase(acct->name);
+    return n > 0;
+  }
+
+  account_t * find_account(const string& name, bool auto_create = true);
+
+  bool valid() const;
+
+  friend class journal_t;
+};
+
+std::ostream& operator<<(std::ostream& out, const account_t& account);
+
+} // namespace ledger
+
+#endif // _ACCOUNT_H