#include defs.wh
#include defs.wh2
#define _PAGE-TITLE_ Rational and basic overview
#define _TITLE-HEADER-TEXT_ Rational and basic overview
#include head.wh

The reason for having a compiler is that it is useful to have
certain common information between many different web pages
to implement a consistant style amoung the pages.  To a certain
extent, this can be implemented by the web server via
<i>Server Side Includes</i>, but that feature is not uniformly
available.  In addition, the _WEBC_ compiler can do
a few other tricks.
<p>
_WEBC_ is implemented in the <b>Perl</b> programming language.
Usually the implementation language of a program is not important.
However, it is here, because it is possible for the user to add
code to the compiler at run time.  This feature allows for a certain
amount of flexibility and oddity.

#include tail.wh2
#include tail.wh