This program is written in Tcl/TK and so is in principle
portable to just about any environment. It was actually
written and primarily tested on GNU/Linux systems. It is
known to run under FreeBSD, SunOS, Mac OS X and Microsoft
Windows (using cygwin).
It requires wish, the tcl/tk windowing shell, to run.
Naturally, the availability of particular programs for
matching regular expressions depends on what is installed on
your system. Only the core tcl/tk package is required; no
extensions are used.
A secondary dependency is the dillo browser. A browser is
invoked in parts of the help system. Dillo was chosen
as the default because it is very lightweight, starts quickly,
is free (in both senses), and runs on all major platforms.
You can set a different default browser if you wish to
in your init file. If the default browser is not found,
redet will try a series of alternatives.
On Unix systems, the program file redet can be made
executable by: (a) copying into a directory on your path;
(b) marking the file as executable: chmod 755 redet.tcl;
You may wish to rename redet.tcl as redet.
If running under cygwin on Microsoft Windows, you may need
to set your TMP environment variable to "/cygdrive/c/tmp".