From d0e9822ed16cb36de4cb1171a89d4049c615f1a0 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Fri, 27 Apr 2007 10:09:00 +0000
Subject: Moved around the Python code.

---
 py_xpath.cc | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 py_xpath.cc

(limited to 'py_xpath.cc')

diff --git a/py_xpath.cc b/py_xpath.cc
new file mode 100644
index 00000000..6569ce7b
--- /dev/null
+++ b/py_xpath.cc
@@ -0,0 +1,79 @@
+using namespace boost::python;
+using namespace ledger;
+
+value_t py_calc_1(xpath_t::op_t& xpath_t, const details_t& item)
+{
+  value_t result;
+  xpath_t.calc(result, item);
+  return result;
+}
+
+template <typename T>
+value_t py_calc(xpath_t::op_t& xpath_t, const T& item)
+{
+  value_t result;
+  xpath_t.calc(result, details_t(item));
+  return result;
+}
+
+xpath_t::op_t * py_parse_xpath_t_1(const string& str)
+{
+  return parse_xpath_t(str);
+}
+
+#define EXC_TRANSLATOR(type)				\
+  void exc_translate_ ## type(const type& err) {	\
+    PyErr_SetString(PyExc_RuntimeError, err.what());	\
+  }
+
+EXC_TRANSLATOR(xpath_t_error)
+EXC_TRANSLATOR(calc_error)
+#if 0
+EXC_TRANSLATOR(mask_error)
+#endif
+
+void export_xpath()
+{
+  class_< details_t > ("Details", init<const entry_t&>())
+    .def(init<const transaction_t&>())
+    .def(init<const account_t&>())
+    .add_property("entry",
+		  make_getter(&details_t::entry,
+			      return_value_policy<reference_existing_object>()))
+    .add_property("xact",
+		  make_getter(&details_t::xact,
+			      return_value_policy<reference_existing_object>()))
+    .add_property("account",
+		  make_getter(&details_t::account,
+			      return_value_policy<reference_existing_object>()))
+    ;
+
+  class_< xpath_t::op_t > ("ValueExpr", init<xpath_t::op_t::kind_t>())
+    .def("calc", py_calc_1)
+    .def("calc", py_calc<account_t>)
+    .def("calc", py_calc<entry_t>)
+    .def("calc", py_calc<transaction_t>)
+    ;
+
+  def("parse_xpath_t", py_parse_xpath_t_1,
+      return_value_policy<manage_new_object>());
+
+  class_< item_predicate<transaction_t> >
+    ("TransactionPredicate", init<string>())
+    .def("__call__", &item_predicate<transaction_t>::operator())
+    ;
+
+  class_< item_predicate<account_t> >
+    ("AccountPredicate", init<string>())
+    .def("__call__", &item_predicate<account_t>::operator())
+    ;
+
+#define EXC_TRANSLATE(type)					\
+  register_exception_translator<type>(&exc_translate_ ## type);
+
+  EXC_TRANSLATE(xpath_t_error);
+  EXC_TRANSLATE(calc_error);
+#if 0
+  EXC_TRANSLATE(mask_error);
+#endif
+}
-- 
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