+/** Needed to switch between different classes. This works
+ * for a list of paragraphs beginning with the specified par.
+ * It changes layouts and character styles.
+ */
+void switchBetweenClasses(DocumentClass const * const c1,
+ DocumentClass const * const c2, InsetText & in, ErrorList &);
+
+/// Get the current selection as a string. Does not change the selection.
+/// Does only work if the whole selection is in mathed.
+docstring grabSelection(Cursor const & cur);
+/// Erase the current selection.
+/// Does not handle undo. Does only work if the whole selection is in mathed.
+/// Calls saveSelection.
+void eraseSelection(Cursor & cur);
+/// Reduce the selected text in mathed to only one cell. If it spans multiple
+/// cells, the cursor is moved the end of the current cell and the anchor to the
+/// start. If the selection is inside only one cell, nothing is done. Return
+/// true if the selection now does not span multiple cells anymore.
+bool reduceSelectionToOneCell(Cursor & cur);
+/// Returns true if multiple cells are selected in mathed.
+bool multipleCellsSelected(Cursor const & cur);
+/// Erase the selection and return it as a string.
+/// Does not handle undo. Does only work if the whole selection is in mathed.
+docstring grabAndEraseSelection(Cursor & cur);
+// other selection methods
+/// Erase the selection if one exists.
+/// Does not handle undo. Does only work if the whole selection is in mathed.
+void selDel(Cursor & cur);
+/// Clear or delete the selection if one exists, depending on lyxrc setting.
+/// Does not handle undo. Does only work if the whole selection is in mathed.
+void selClearOrDel(Cursor & cur);
+/// Calculate rectangular region of cell between \c i1 and \c i2.
+void region(CursorSlice const & i1, CursorSlice const & i2,
+ Inset::row_type & r1, Inset::row_type & r2,
+ Inset::col_type & c1, Inset::col_type & c2);
+/** Tabular has its own paste stack for multiple cells
+ * but it needs to know whether there is a more recent
+ * ordinary paste. Therefore which one is newer.
+ */
+//FIXME: this is a workaround for bug 1919. Replace this by
+//an all-for-one-paste mechanism in 1.7
+/// store whether tabular or ordinary paste stack is newer
+void dirtyTabularStack(bool b);
+/// is the tabular paste stack newer than the ordinary one?
+bool tabularStackDirty();
+} // namespace cap
+} // namespce lyx