Predefined Variables in BeanShell
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## Predefined Variables in BeanShell

The following variables are always available for use in BeanShell scripts:

- `buffer` - a Buffer object represents the contents of the currently visible open text file.

- `view` - A View represents the current top-level editor window, extending Java's `JFrame` class, that contains the various visible components of the program, including the text area, menu bar, toolbar, and any docked windows.

  This variable has the same value as the return value of:

      jEdit.getActiveView()

- `editPane` - an EditPane object contains a text area and buffer switcher. A view can be split to display edit panes. Among other things, the EditPane class contains methods for selecting the buffer to edit.

  Most of the time your macros will manipulate the `buffer` or the `textArea`. Sometimes you will need to use `view` as a parameter in a method call. You will probably only need to use `editPane` if your macros work with split views.

  This variable has the same value as the return value of:

      view.getEditPane()

- `textArea` - a JEditTextArea is the visible component that displays the current buffer.

  This variable has the same value as the return value of:

      editPane.getTextArea()

- `wm` - a DockableWindowManager is the visible component that manages dockable windows in the current view. This class is discussed in detail in Part IV, “Writing Plugins”. This object is useful for writing macros that interface with, open, or close plugin windows.

  This variable has the same value the return value of:

      view.getDockableWindowManager()

- `scriptPath` - set to the full path of the script currently being executed.

- `scriptPath` - set to the full path of the script currently being executed.

Note that these variables are set at the beginning of macro execution. If the macro switches views, buffers or edit panes, the variable values will be out of date. In that case, you can use the equivalent method calls.

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