53 lines
2.1 KiB
HTML
53 lines
2.1 KiB
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<head>
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<!-- This file has been generated by unroff 1.0, 03/21/96 19:29:41. -->
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<!-- Do not edit! -->
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<link rev="made" href="mailto:net@informatik.uni-bremen.de">
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<title>unroff Programmer's Manual, section 2.</title>
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</head><body>
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<h2><a name="section2">2.</a> <tt> </tt>Where to Place Scheme Code?
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</h2>
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<p>
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 <tt> </tt> <tt> </tt> <tt> </tt><i>unroff
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</i>accepts Scheme code in a number of places.<tt> </tt>
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First, several Scheme files are loaded on startup:
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<dl><dt><dd>
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<pre>
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scm/troff.scm
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scm/<i>format</i>/common.scm
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scm/<i>format</i>/<i>package</i>.scm
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~/.unroff
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</pre>
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</dl>
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<p>
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 <tt> </tt> <tt> </tt> <tt> </tt>The first three path names are relative to a site-specific library
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directory where the files have been installed by the system
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administrator.<tt> </tt>
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``troff.scm'' contains definitions that are independent of the
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actual output format and troff macro-package; and the
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file ``.unroff'' (loaded from the caller's home directory) typically
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contains Scheme code to define user-preferences and to tailor
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and extend the translation rules implemented by the files loaded
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from a central location.<tt> </tt>
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See the
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<a href="./unroff.1.html">manual page</a>
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<i>unroff</i>(1)
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for more information.<tt> </tt>
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<p>
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 <tt> </tt> <tt> </tt> <tt> </tt>Additional files with user-supplied Scheme definitions
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(e.g. translation rules for user-defined macros) can be passed to
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<i>unroff
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</i>by mentioning them in the command line.<tt> </tt>
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In general, troff input files and Scheme source files can be mixed
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arbitrarily when calling
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<i>unroff</i>.<tt> </tt>
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Finally, Scheme code can be embedded directly in the troff documents
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by means of the new ``.##'' troff request and the corresponding
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extension to the ``.ig'' request as explained in the
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<a href="./unroff.1.html">manual page</a>.<tt> </tt>
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Such inline Scheme code is executed on-the-fly when it is encountered
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by the parser while processing the document.<tt> </tt>
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<p><hr>
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Markup created by <em>unroff</em> 1.0, <tt> </tt> <tt> </tt>March 21, 1996, <tt> </tt> <tt> </tt>net@informatik.uni-bremen.de</body>
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</html>
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