--- a/oct-py-types.h	Fri Apr 28 14:04:58 2017 -0700
+++ b/oct-py-types.h	Fri Apr 28 14:07:57 2017 -0700
@@ -37,183 +37,185 @@
 namespace pytave
 {
 
-//! Extract the integer value of the given Python bool object.
-//!
-//! @param obj Python bool object
-//! @return @c true or @c false value of @a obj
-bool
-extract_py_bool (PyObject *obj);
+  //! Extract the integer value of the given Python bool object.
+  //!
+  //! @param obj Python bool object
+  //! @return @c true or @c false value of @a obj
+  bool
+  extract_py_bool (PyObject *obj);
 
-//! Create a Python bool object with the value of the given @c bool value.
-//!
-//! @param value @c true or @c false value
-//! @return Python bool object
-PyObject *
-make_py_bool (bool value);
+  //! Create a Python bool object with the value of the given @c bool value.
+  //!
+  //! @param value @c true or @c false value
+  //! @return Python bool object
+  PyObject *
+  make_py_bool (bool value);
 
-//! Extract the complex value of the given Python complex object.
-//!
-//! @param obj Python complex object
-//! @return complex value of @a obj
-std::complex<double>
-extract_py_complex (PyObject *obj);
+  //! Extract the complex value of the given Python complex object.
+  //!
+  //! @param obj Python complex object
+  //! @return complex value of @a obj
+  std::complex<double>
+  extract_py_complex (PyObject *obj);
 
-//! Create a Python complex object with the value of the given @c complex value.
-//!
-//! @param value complex value
-//! @return Python complex object
-PyObject *
-make_py_complex (std::complex<double> value);
+  //! Create a Python complex object with the value of the given @c complex
+  //! value.
+  //!
+  //! @param value complex value
+  //! @return Python complex object
+  PyObject *
+  make_py_complex (std::complex<double> value);
 
-//! Extract the floating point value of the given Python float object.
-//!
-//! @param obj Python float object
-//! @return floating point value of @a obj
-double
-extract_py_float (PyObject *obj);
+  //! Extract the floating point value of the given Python float object.
+  //!
+  //! @param obj Python float object
+  //! @return floating point value of @a obj
+  double
+  extract_py_float (PyObject *obj);
 
-//! Create a Python float object with the value of the given @c double value.
-//!
-//! @param value floating point value
-//! @return Python float object
-PyObject *
-make_py_float (double value);
+  //! Create a Python float object with the value of the given @c double value.
+  //!
+  //! @param value floating point value
+  //! @return Python float object
+  PyObject *
+  make_py_float (double value);
 
-//! Extract an Octave scalar map from the given Python dict object.
-//!
-//! @param obj Python dict object
-//! @return Octave scalar map containing the items of @a obj
-octave_scalar_map
-extract_py_scalar_map (PyObject *obj);
+  //! Extract an Octave scalar map from the given Python dict object.
+  //!
+  //! @param obj Python dict object
+  //! @return Octave scalar map containing the items of @a obj
+  octave_scalar_map
+  extract_py_scalar_map (PyObject *obj);
 
-//! Create a Python dict object from the given Octave scalar map value.
-//!
-//! The values contained in the map are recursively converted to appropriate
-//! Python values.
-//!
-//! @param map Octave scalar map
-//! @return Python dict object
-PyObject *
-make_py_dict (const octave_scalar_map& map);
+  //! Create a Python dict object from the given Octave scalar map value.
+  //!
+  //! The values contained in the map are recursively converted to appropriate
+  //! Python values.
+  //!
+  //! @param map Octave scalar map
+  //! @return Python dict object
+  PyObject *
+  make_py_dict (const octave_scalar_map& map);
 
-//! Extract the integer value of the given Python int or long object.
-//!
-//! @param obj Python int or long object
-//! @return integer value of @a obj
-int64_t
-extract_py_int64 (PyObject *obj);
+  //! Extract the integer value of the given Python int or long object.
+  //!
+  //! @param obj Python int or long object
+  //! @return integer value of @a obj
+  int64_t
+  extract_py_int64 (PyObject *obj);
 
-//! Extract the integer value of the given Python int or long object.
-//!
-//! @param obj Python int or long object
-//! @return integer value of @a obj
-uint64_t
-extract_py_uint64 (PyObject *obj);
+  //! Extract the integer value of the given Python int or long object.
+  //!
+  //! @param obj Python int or long object
+  //! @return integer value of @a obj
+  uint64_t
+  extract_py_uint64 (PyObject *obj);
 
-//! Create a Python int object with the value of the given @c int32_t value.
-//!
-//! @param value integer value
-//! @return Python int or long object
-PyObject *
-make_py_int (int32_t value);
+  //! Create a Python int object with the value of the given @c int32_t value.
+  //!
+  //! @param value integer value
+  //! @return Python int or long object
+  PyObject *
+  make_py_int (int32_t value);
 
-//! Create a Python int object with the value of the given @c uint32_t value.
-//!
-//! @param value integer value
-//! @return Python int or long object
-PyObject *
-make_py_int (uint32_t value);
+  //! Create a Python int object with the value of the given @c uint32_t value.
+  //!
+  //! @param value integer value
+  //! @return Python int or long object
+  PyObject *
+  make_py_int (uint32_t value);
 
-//! Create a Python int object with the value of the given @c int64_t value.
-//!
-//! @param value integer value
-//! @return Python int or long object
-PyObject *
-make_py_int (int64_t value);
+  //! Create a Python int object with the value of the given @c int64_t value.
+  //!
+  //! @param value integer value
+  //! @return Python int or long object
+  PyObject *
+  make_py_int (int64_t value);
 
-//! Create a Python int object with the value of the given @c uint64_t value.
-//!
-//! @param value integer value
-//! @return Python int or long object
-PyObject *
-make_py_int (uint64_t value);
+  //! Create a Python int object with the value of the given @c uint64_t value.
+  //!
+  //! @param value integer value
+  //! @return Python int or long object
+  PyObject *
+  make_py_int (uint64_t value);
 
-//! Create a Python array object with the value of the given Octave array.
-//!
-//! @param nda array value
-//! @return Python array object
-PyObject *
-make_py_array (const NDArray& nda);
+  //! Create a Python array object with the value of the given Octave array.
+  //!
+  //! @param nda array value
+  //! @return Python array object
+  PyObject *
+  make_py_array (const NDArray& nda);
 
-//! Create a Python array object with the value of the given Octave array.
-//!
-//! @param nda array value
-//! @return Python array object
-PyObject *
-make_py_array (const FloatNDArray& nda);
+  //! Create a Python array object with the value of the given Octave array.
+  //!
+  //! @param nda array value
+  //! @return Python array object
+  PyObject *
+  make_py_array (const FloatNDArray& nda);
 
-//! Create a Python array object with the value of the given Octave array.
-//!
-//! @param nda array value
-//! @return Python array object
-template <typename T>
-PyObject *
-make_py_array (const intNDArray<T>& nda);
+  //! Create a Python array object with the value of the given Octave array.
+  //!
+  //! @param nda array value
+  //! @return Python array object
+  template <typename T>
+  PyObject *
+  make_py_array (const intNDArray<T>& nda);
 
-//! Create a Python array object from the given Octave numeric vector.
-//!
-//! All Octave real floating point and integer values are converted to
-//! corresponding Python array types by this function.
-//!
-//! @warning Depending on the version of Python and how it is configured,
-//!          @c int64 and @c uint64 vectors may not be supported.
-//!
-//! @param value Octave numeric or boolean scalar value
-//! @return Python array object
-PyObject *
-make_py_array (const octave_value& value);
+  //! Create a Python array object from the given Octave numeric vector.
+  //!
+  //! All Octave real floating point and integer values are converted to
+  //! corresponding Python array types by this function.
+  //!
+  //! @warning Depending on the version of Python and how it is configured,
+  //!          @c int64 and @c uint64 vectors may not be supported.
+  //!
+  //! @param value Octave numeric or boolean scalar value
+  //! @return Python array object
+  PyObject *
+  make_py_array (const octave_value& value);
 
-//! Create a Python tuple object from the given Octave cell array value.
-//!
-//! The values contained in the cell array are recursively converted to
-//! appropriate Python values.
-//!
-//! @param cell Octave cell array
-//! @return Python tuple object
-PyObject *
-make_py_tuple (const Cell& cell);
+  //! Create a Python tuple object from the given Octave cell array value.
+  //!
+  //! The values contained in the cell array are recursively converted to
+  //! appropriate Python values.
+  //!
+  //! @param cell Octave cell array
+  //! @return Python tuple object
+  PyObject *
+  make_py_tuple (const Cell& cell);
 
-//! Create a Python numeric object from the given Octave numeric or boolean
-//! scalar value.
-//!
-//! The following implicit type conversions are implemented by this function:
-//!
-//! @arg @c bool from Octave logical scalar,
-//! @arg @c complex from Octave double or single precision complex scalar,
-//! @arg @c float from Octave double or single precision scalar,
-//! @arg @c int from any Octave integer-valued scalar,
-//! @arg @c long from any Octave @c uint32, @c int64, or @c uint64, and only
-//!         if running against Python 2.
-//!
-//! @param value Octave numeric or boolean scalar value
-//! @return Python numeric object (@c bool, @c int, @c long, @c float, or
-//!         @c complex)
-PyObject *
-make_py_numeric_value (const octave_value& value);
+  //! Create a Python numeric object from the given Octave numeric or boolean
+  //! scalar value.
+  //!
+  //! The following implicit type conversions are implemented by this function:
+  //!
+  //! @arg @c bool from Octave logical scalar,
+  //! @arg @c complex from Octave double or single precision complex scalar,
+  //! @arg @c float from Octave double or single precision scalar,
+  //! @arg @c int from any Octave integer-valued scalar,
+  //! @arg @c long from any Octave @c uint32, @c int64, or @c uint64, and only
+  //!         if running against Python 2.
+  //!
+  //! @param value Octave numeric or boolean scalar value
+  //! @return Python numeric object (@c bool, @c int, @c long, @c float, or
+  //!         @c complex)
+  PyObject *
+  make_py_numeric_value (const octave_value& value);
 
-//! Extract the string value of the given Python str, bytes, or unicode object.
-//!
-//! @param obj Python str, bytes, or unicode object
-//! @return string value of @a obj
-std::string
-extract_py_str (PyObject *obj);
+  //! Extract the string value of the given Python str, bytes, or unicode
+  //! object.
+  //!
+  //! @param obj Python str, bytes, or unicode object
+  //! @return string value of @a obj
+  std::string
+  extract_py_str (PyObject *obj);
 
-//! Create a Python str object from the given @c string value.
-//!
-//! @param str string value
-//! @return Python str object
-PyObject *
-make_py_str (const std::string& str);
+  //! Create a Python str object from the given @c string value.
+  //!
+  //! @param str string value
+  //! @return Python str object
+  PyObject *
+  make_py_str (const std::string& str);
 
 }