Summary of function
===================

This tool allows the user to examine and change various ECLiPSe global
environmental settings. 

Layout
======

This tool consists of a list of global environment states and methods to
alter these states.

Functionality
=============

This tool provides a GUI to the get_flag/2 and set_flag/2 predicates, which
is used to alter some global environmental setting of ECLiPSe. See the
manual or help pages for these predicates for details on the meaning of
each individual flag listed in this tool. 

Most of the flag can have their settings changed within the tool. Depending
on what the available values for the flag are, there are the following
methods for changing them:

a) radio buttons -- if the flag can only have a few fixed settings, these
settings are available as radio buttons. Click on a particular button to
set that value as the flag's value.

b) Numeric entry -- if the flag has a numeric value, then the value can be
typed into a window associated with the flag. Note that only numbers can be
entered into these windows.

c) Directory paths -- for the cwd flag, which can be set to any directory,
the user can either chose a directory via its Change button, which will
allow the user to select a directory using a directory browser, or a new
directory can be typed in by editing the path listed in the window. Note
that no checks are performed on the validity of the directory path in this
latter case. 

For the library_path flag, a list of directories is given in its
window. The user can change the paths by either editing the entry, or by
clicking on its change button. The change button produce a menu of the
current paths, and selecting a particular path allow it to be edited: this
popups a window with several options: the path can be replaced, deleted, or
a new path inserted.


d) Output mode -- this flag can be change by clicking on its Change
button. This pops up an additional window, in which the available settings
for the output mode can be changed. The text next to each setting shows
what the current setting will do, and changing the setting will change the
text displayed. Until the Set button is pressed, the output mode will not
be changed.