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<TITLE>4.3 What I Want to Protect</TITLE>
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<P><FONT SIZE="5">4.3 What I Want to Protect</FONT><BR>
<P>The concerns expressed in the previous section about
modifications to the FunnelWeb program do not exclude
modifications. They merely suggest that some conditions be
observed when modifications are made. In the end there are
two things that I want to protect and maintain:
<P>
<OL>
<LI> Restriction of the name "FunnelWeb" only to
computer programs that exactly implement my
"official" definition of the language.
<LI> Restriction of the FunnelWeb source file extensions
"<TT>.fw</TT>" (input files) and "<TT>.fwi</TT>" (include
files) only to source files that conform exactly to my
"official" definition of the language.
</OL>
<P>So long as these conditions hold, <SAMP>.fw</SAMP> source file
will be universally portable. Here
are my suggestions for how to obey these rules. These
suggestions are in addition to the GNU license rules about
documenting any changes that you make in the source files.
<P><BLOCKQUOTE><B>Level 0: Modifications that do not affect
functionality:</B> If you change the FunnelWeb program in a
manner that does not affect the functionality of the program
in any way (e.g. port it to a new machine, or just speed it
up), then you should modify the program to write out a
message when it starts up saying that it is a modified
version of FunnelWeb. No other actions need be taken.</BLOCKQUOTE>
<P><BLOCKQUOTE><B>Level 1: Modifications that affect surface
functionality:</B> If you make changes to FunnelWeb that affect
its functionality without altering or extending
the syntax or semantics of the FunnelWeb language, you should
augment the name of the program to indicate that it is
a FunnelWeb variant. For example, you could call it
"FunnelWeb-Dave".</BLOCKQUOTE>
<P><BLOCKQUOTE><B>Level 2: Modifications that affect the language:</B> If
you make changes to FunnelWeb that affect the FunnelWeb language
(e.g. by adding some new syntax), you should
change the name of the program so that the name no longer
contains the word "FunnelWeb", and should choose
alternative input and include-file file extensions (the
current ones are "<TT>.fw</TT>" and "<TT>.fwi</TT>"). For
example, you might call your program "BananaWeb" and
use the file extensions "<TT>.bw</TT>" and
"<TT>.bwi</TT>".</BLOCKQUOTE>
<P>These rules are not very restrictive. Basically you can
do what you like so long as you change the name of the
resulting program. I do not wish to restrict anyone who
might want to use FunnelWeb as a foundation for a more
sophisticated literate programming system. My sole aim here
is to protect the integrity of what already exists.
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