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<TITLE>SDF 2.001: SDF Reference: use Macro</TITLE>
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<H1>6. Macros</H1>
<HR>
<H2><A NAME="Overview">6.1. Overview</A></H2>
<P>The macros available are summarised below.</P>
<TABLE CLASS="columns" BORDER>
<TR CLASS="heading">
<TD>
<STRONG>Name</STRONG>
</TD>
<TD>
<STRONG>Purpose</STRONG>
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>General:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mbuild_t.html">build_title</A>
</TD>
<TD>
build a title page
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mblock.html">block</A>
</TD>
<TD>
begin a block of text
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mendbloc.html">endblock</A>
</TD>
<TD>
end a block of text
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/minclude.html">include</A>
</TD>
<TD>
include another file
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mexecute.html">execute</A>
</TD>
<TD>
include output from a command
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Variables:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/minit.html">init</A>
</TD>
<TD>
initialise variables (before loading configuration files)
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mdefine.html">define</A>
</TD>
<TD>
set a variable
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mdefault.html">default</A>
</TD>
<TD>
set a variable (if not already set)
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mundef.html">undef</A>
</TD>
<TD>
clear a variable
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mexport.html">export</A>
</TD>
<TD>
export a variable to the format driver (and/or mark it for later exporting)
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mrestric.html">restrict</A>
</TD>
<TD>
declare a restricted family of variables
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Figures:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mimport.html">import</A>
</TD>
<TD>
import an external object (e.g. figure)
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mclear.html">clear</A>
</TD>
<TD>
reset text wrapping around a figure
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Libraries:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/minherit.html">inherit</A>
</TD>
<TD>
inherit entities from a library
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/muse.html">use</A>
</TD>
<TD>
load a library module
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Macros:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mmacro.html">macro</A>
</TD>
<TD>
begin a macro definition
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mendmacr.html">endmacro</A>
</TD>
<TD>
end a macro definition
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/minsert.html">insert</A>
</TD>
<TD>
call a macro
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Classes:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mclass.html">class</A>
</TD>
<TD>
define a class of objects
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mcatalog.html">catalog</A>
</TD>
<TD>
build a catalog from objects already loaded
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Conditional text:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mif.html">if</A>
</TD>
<TD>
begin conditional text
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/melsif.html">elsif</A>
</TD>
<TD>
begin a conditional section
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/melse.html">else</A>
</TD>
<TD>
begin alternative section
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mendif.html">endif</A>
</TD>
<TD>
end conditional text
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/melseif.html">elseif</A>
</TD>
<TD>
same as elsif
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Event processing:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mon.html">on</A>
</TD>
<TD>
specify processing for an event
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/moff.html">off</A>
</TD>
<TD>
disable processing previously specified
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>File processing:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/moutput.html">output</A>
</TD>
<TD>
dynamically change the output file used
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mscript.html">script</A>
</TD>
<TD>
execute a line of <A HREF="http://www.perl.com/perl/index.html">Perl</A>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mmessage.html">message</A>
</TD>
<TD>
output a message during execution
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mline.html">line</A>
</TD>
<TD>
change message parameters
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mslide_d.html">slide_down</A>
</TD>
<TD>
decrease heading levels (e.g. H2 -&gt; H3)
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mslide_u.html">slide_up</A>
</TD>
<TD>
increase heading levels (e.g. H2 -&gt; H1)
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Extraction:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mgetdoc.html">getdoc</A>
</TD>
<TD>
extract documentation embedded in source code
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mgetcode.html">getcode</A>
</TD>
<TD>
extract source code (i.e. non-documentation) from a file
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mgetcli.html">getcli</A>
</TD>
<TD>
extract command-line interface information
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mperlapi.html">perlapi</A>
</TD>
<TD>
extract API information from a <A HREF="http://www.perl.com/perl/index.html">Perl</A> library
</TD>
</TR>
<TR CLASS="group">
<TD>
<STRONG>Miscellaneous:</STRONG>
</TD>
<TD>
<STRONG>&nbsp;</STRONG>
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mjumps.html">jumps</A>
</TD>
<TD>
generates lines of jumps
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/msubsect.html">subsections</A>
</TD>
<TD>
specify the subsections for a topic
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mcontinu.html">continued</A>
</TD>
<TD>
continue a heading from a previous page
</TD>
</TR>
<TR>
<TD>
<A HREF="../ref/mend_top.html">end_topic</A>
</TD>
<TD>
mark the end of a topic
</TD>
</TR>
</TABLE>

<P>Further details on these are provided below.</P>
<P><A HREF="mblock.html">block Macro</A></P>
<P><A HREF="mbuild_t.html">build_title Macro</A></P>
<P><A HREF="mcatalog.html">catalog Macro</A></P>
<P><A HREF="mclass.html">class Macro</A></P>
<P><A HREF="mclear.html">clear Macro</A></P>
<P><A HREF="mcontinu.html">continued Macro</A></P>
<P><A HREF="mdefault.html">default Macro</A></P>
<P><A HREF="mdefine.html">define Macro</A></P>
<P><A HREF="melse.html">else Macro</A></P>
<P><A HREF="melseif.html">elseif Macro</A></P>
<P><A HREF="melsif.html">elsif Macro</A></P>
<P><A HREF="mend_top.html">end_topic Macro</A></P>
<P><A HREF="mendbloc.html">endblock Macro</A></P>
<P><A HREF="mendif.html">endif Macro</A></P>
<P><A HREF="mendmacr.html">endmacro Macro</A></P>
<P><A HREF="mexecute.html">execute Macro</A></P>
<P><A HREF="mexport.html">export Macro</A></P>
<P><A HREF="mgetcli.html">getcli Macro</A></P>
<P><A HREF="mgetcode.html">getcode Macro</A></P>
<P><A HREF="mgetdoc.html">getdoc Macro</A></P>
<P><A HREF="mif.html">if Macro</A></P>
<P><A HREF="mimport.html">import Macro</A></P>
<P><A HREF="minclude.html">include Macro</A></P>
<P><A HREF="minherit.html">inherit Macro</A></P>
<P><A HREF="minit.html">init Macro</A></P>
<P><A HREF="minsert.html">insert Macro</A></P>
<P><A HREF="mjumps.html">jumps Macro</A></P>
<P><A HREF="mline.html">line Macro</A></P>
<P><A HREF="mmacro.html">macro Macro</A></P>
<P><A HREF="mmessage.html">message Macro</A></P>
<P><A HREF="moff.html">off Macro</A></P>
<P><A HREF="mon.html">on Macro</A></P>
<P><A HREF="moutput.html">output Macro</A></P>
<P><A HREF="mperlapi.html">perlapi Macro</A></P>
<P><A HREF="mrestric.html">restrict Macro</A></P>
<P><A HREF="mscript.html">script Macro</A></P>
<P><A HREF="mslide_d.html">slide_down Macro</A></P>
<P><A HREF="mslide_u.html">slide_up Macro</A></P>
<P><A HREF="msubsect.html">subsections Macro</A></P>
<P><A HREF="mundef.html">undef Macro</A></P>
<P><A HREF="muse.html">use Macro</A></P>
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