Improve documentation of plugins.

doc/I00_CustomizingEigen.dox

@@ -9,7 +9,7 @@ Eigen can be extended in several ways, for instance, by defining global methods,
   - \ref InheritingFromMatrix
   - \ref CustomScalarType
 
-\section ExtendingMatrixBase Extending MatrixBase
+\section ExtendingMatrixBase Extending MatrixBase (and other classes)
 
 In this section we will see how to add custom methods to MatrixBase. Since all expressions and matrix types inherit MatrixBase, adding a method to MatrixBase make it immediately available to all expressions ! A typical use case is, for instance, to make Eigen compatible with another API.
 
@@ -22,9 +22,11 @@ class MatrixBase {
   #endif
 };
 \endcode
-Therefore to extend MatrixBase with you own methods you just have to create a file with your method declaration and define EIGEN_MATRIXBASE_PLUGIN before you include any Eigen's header file.
+Therefore to extend MatrixBase with your own methods you just have to create a file with your method declaration and define EIGEN_MATRIXBASE_PLUGIN before you include any Eigen's header file.
 
-Here is an example of such an extension file: \n
+You can extend many of the other classes used in Eigen by defining similarly named preprocessor symbols. For instance, define \c EIGEN_ARRAYBASE_PLUGIN if you want to extend the ArrayBase class. A full list of classes that can be extended in this way and the corresponding preprocessor symbols can be found on our page \ref TopicPreprocessorDirectives.
+
+Here is an example of an extension file for adding methods to MatrixBase: \n
 \b MatrixBaseAddons.h
 \code
 inline Scalar at(uint i, uint j) const { return this->operator()(i,j); }

doc/I14_PreprocessorDirectives.dox

@@ -18,6 +18,8 @@ This page lists the preprocesor tokens recognised by Eigen.
 
  - \b EIGEN2_SUPPORT - if defined, enables the Eigen2 compatibility mode. This is meant to ease the transition
    of Eigen2 to Eigen3 (see \ref Eigen2ToEigen3). Not defined by default.
+ - \b EIGEN2_SUPPORT_STAGEnn_xxx (for various values of nn and xxx) - staged migration path from Eigen2 to
+   Eigen3; see \ref Eigen2SupportModes.
  - \b EIGEN_DEFAULT_TO_ROW_MAJOR - when defined, the default storage order for matrices becomes row-major
    instead of column-major. Not defined by default.
  - \b EIGEN_DEFAULT_IO_FORMAT - the IOFormat to use when printing a matrix if no #IOFormat is specified.
@@ -60,17 +62,22 @@ It is possible to add new methods to many fundamental classes in Eigen by writin
 the section \ref ExtendingMatrixBase, the plugin is specified by defining a \c EIGEN_xxx_PLUGIN macro. The
 following macros are supported; none of them are defined by default.
 
- - \b EIGEN_ARRAYBASE_PLUGIN - filename of plugin for extending the ArrayBase class.
  - \b EIGEN_ARRAY_PLUGIN - filename of plugin for extending the Array class.
+ - \b EIGEN_ARRAYBASE_PLUGIN - filename of plugin for extending the ArrayBase class.
  - \b EIGEN_CWISE_PLUGIN - filename of plugin for extending the Cwise class.
  - \b EIGEN_DENSEBASE_PLUGIN - filename of plugin for extending the DenseBase class.
- - \b EIGEN_MATRIXBASE_PLUGIN - filename of plugin for extending the MatrixBase class.
+ - \b EIGEN_DYNAMICSPARSEMATRIX_PLUGIN - filename of plugin for extending the DynamicSparseMatrix class.
  - \b EIGEN_MATRIX_PLUGIN - filename of plugin for extending the Matrix class.
+ - \b EIGEN_MATRIXBASE_PLUGIN - filename of plugin for extending the MatrixBase class.
  - \b EIGEN_PLAINOBJECTBASE_PLUGIN - filename of plugin for extending the PlainObjectBase class.
  - \b EIGEN_QUATERNIONBASE_PLUGIN - filename of plugin for extending the QuaternionBase class.
+ - \b EIGEN_SPARSEMATRIX_PLUGIN - filename of plugin for extending the SparseMatrix class.
+ - \b EIGEN_SPARSEMATRIXBASE_PLUGIN - filename of plugin for extending the SparseMatrixBase class.
+ - \b EIGEN_SPARSEVECTOR_PLUGIN - filename of plugin for extending the SparseVector class.
  - \b EIGEN_TRANSFORM_PLUGIN - filename of plugin for extending the Transform class.
  - \b EIGEN_FUNCTORS_PLUGIN - filename of plugin for adding new functors and specializations of functor_traits.
 
+
 */
 
-}
+}