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<TITLE>5.6 Changing the Strength of Headings</TITLE>
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<P><FONT SIZE="5">5.6 Changing the Strength of Headings</FONT><BR>
<P>FunnelWeb provides five heading levels: <SAMP>@A</SAMP>,
<SAMP>@B</SAMP>, <SAMP>@C</SAMP>, <SAMP>@D</SAMP>, and
<SAMP>@E</SAMP> to which it binds five different typographical
strengths. These bindings are static; a level <SAMP>@A</SAMP>
heading will always be typeset in a particular font size
regardless of the size of the document. The font sizes have
been preset to be "reasonable" for a range of
document sizes, but may be inappropriate for very small or
large documents.
<P>FunnelWeb does not currently provide an
"official" way (e.g. a pragma) to change the
typesetting strength of headings. This feature might be
added in later versions. Meanwhile, a hack is available that
will do the job, providing that you do not mind the hack
being TeX-specific and probably FunnelWeb-version specific.
<P>Inside the set of TeX macro definitions that FunnelWeb
writes at the top of every documentation file are five
"library" definitions
<SAMP>fwliba</SAMP>...<SAMP>fwlibe</SAMP> which provide five
different typesetting strengths for headings. Near the end
of the set of definitions, FunnelWeb binds these macros to
five other macros <SAMP>fwseca</SAMP>...<SAMP>fwsece</SAMP>
which are invoked directly in the generated TeX code to
typeset the headings.
<P>
<PRE>
\def\fwseca#1#2{\fwliba{#1@,#2}}
\def\fwsecb#1#2{\fwlibb{#1@,#2}}
\def\fwsecc#1#2{\fwlibc{#1@,#2}}
\def\fwsecd#1#2{\fwlibd{#1@,#2}}
\def\fwsece#1#2{\fwlibe{#1@,#2}}
</PRE>
<P>This means that the typesetting strength of the
headings in a FunnelWeb document can be changed by
redefining these macros at the top of a FunnelWeb document.
For example:
<P>
<PRE>
@p typesetter = tex
\def\fwseca#1#2{\fwlibc{#1@,#2}}
</PRE>
<P>would set <SAMP>@A</SAMP> headings at the same strength
as the default strength of <SAMP>@C</SAMP> headings. The
<SAMP>typesetter</SAMP> directive is necessary to ensure that
the TeX control sequences get through to the documentation
file unfiltered.
<P>The following will tone down all headings by two levels
(with the <SAMP>@D</SAMP> and <SAMP>@E</SAMP> levels being
allocated the default <SAMP>@E</SAMP> typesetting strength
because there is nothing weaker).
<P>
<PRE>
@p typesetter = tex
\def\fwseca#1#2{\fwlibc{#1@,#2}}
\def\fwsecb#1#2{\fwlibd{#1@,#2}}
\def\fwsecc#1#2{\fwlibe{#1@,#2}}
\def\fwsecd#1#2{\fwlibe{#1@,#2}}
\def\fwsece#1#2{\fwlibe{#1@,#2}}
</PRE>
<P>These definitions affect only the headings that follow
them, and so they should be placed at the top of the
FunnelWeb input file.
<P>To change the style of headings in HTML output, just
modify the style settings near the top of the HTML file.
<P>
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