Rcgi - running R over the web
=============================

You may find reading other files more appropriate:
   CHANGES  documents differences between versions of Rcgi
   INSTALL  gives installation instructions
   README   details the licence that Rcgi is released under
   HOWTO    is a web-author's guide to using Rcgi
   

RELEASE NUMBERING
=================

Rcgi releases are numbered in strictly increasing integers.
Development releases are denoted by a small letter after the
release number, so the first development releases were 1a, 1b,
1c...  When a development release is declared stable, it gets
the next number: if 1e is declared stable, it becomes release
2 and development continues with 2a, 2b, 2c...  Occasionally,
major rewrites may mean that there is no stable release for a
number, but we try to avoid that.


HISTORY
=======

1a : 2 Nov 1998 : MJR : initial internal release

1b : 3 Nov 1998 : MJR : internal release
    Solved the multiple page GIF problem
    Graphical output compressed to save disk space at expense
      of CPU - see note in go.gif

1c : 3 Nov 1998 : MJR : internal tidy-up release
    Compressing PostScript output too - typical saving of 90%
    Removed some embarrasing typos
    Corrected from "`cd" to "chdir" to make preloading work
    GIF output in a new window
    Added GIF slowdown note to INSTALL

1d : 4 Nov 1998 : MJR : internal security release
    Some file calls blocked.  Aim is to prevent damage, not to
      prevent reading of public files.

1e : 5 Nov 1998 : MJR : internal tidy-up release
    Blocked system too.
    Added config variables to top of go.gif

2 : ? : MJR : first public release

3 : 13 Apr 1999 : MJR : public release
    The perl script now uses CGI.pm.  cgi-bin.pl no longer needed.
    Code is almost self-explanatory now.

TO-DO
=====

  Functionality:
    Method for passing back to the calling page?

More for this list?  Email m.j.ray@uea.ac.uk
