From a841aebecd86228ea94f801d5fb9259c035829f8 Mon Sep 17 00:00:00 2001
From: CoprDistGit <infra@openeuler.org>
Date: Thu, 1 Aug 2024 13:53:15 +0000
Subject: automatic import of docbook-utils

---
 docbook2man-spec.pl | 1564 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1564 insertions(+)
 create mode 100755 docbook2man-spec.pl

(limited to 'docbook2man-spec.pl')

diff --git a/docbook2man-spec.pl b/docbook2man-spec.pl
new file mode 100755
index 0000000..58939cb
--- /dev/null
+++ b/docbook2man-spec.pl
@@ -0,0 +1,1564 @@
+=head1 NAME
+
+docbook2man-spec.pl - convert DocBook RefEntries to Unix manpages
+
+=head1 SYNOPSIS
+
+The sgmlspl script from the SGMLSpm Perl module must be used to run
+this script.  Use it like this:
+
+nsgmls some-docbook-document.sgml | sgmlspl docbook2man-spec.pl
+
+See man page or included DocBook documentation for details.
+
+=head1 DESCRIPTION
+
+This is a sgmlspl spec file that produces Unix-style
+man pages from DocBook RefEntry markup.
+
+=head1 COPYRIGHT
+
+Copyright (C) 1998-2001 Steve Cheng <stevecheng@users.sourceforge.net>
+
+Copyright (C) 1999 Thomas Lockhart <lockhart@alumni.caltech.edu>
+
+This program is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+You should have received a copy of the GNU General Public License along with
+this program; see the file COPYING.  If not, please write to the Free
+Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+=cut
+
+# $Id: docbook2man-spec.pl,v 1.11 2010/10/04 10:23:31 ovasik Exp $
+
+use SGMLS;			# Use the SGMLS package.
+use SGMLS::Output;		# Use stack-based output.
+use SGMLS::Refs;
+
+
+########################################################################
+# SGMLSPL script produced automatically by the script sgmlspl.pl
+#
+# Document Type: any, but processes only RefEntries
+# Edited by: me :)
+########################################################################
+
+
+$write_manpages = 0;
+$blank_xrefs = 0;
+
+$default_sect = "1";
+$default_date = `date "+%d %B %Y"`;
+$cite_numeral_only = 1;
+
+while (@ARGV) {
+	my $arg = shift @ARGV;
+	if ($arg eq "--section") {
+		$default_sect = shift @ARGV || die "$arg requires an argument\n";
+	} elsif ($arg eq "--date") {
+		$default_date = shift @ARGV || die "$arg requires an argument\n";
+	} elsif ($arg eq "--lowercase") {
+		$lowercase_names = 1;
+	} elsif ($arg eq "--preserve-case") {
+		$lowercase_names = 0;
+	} elsif ($arg eq "--cite-numeral-only") {
+		$cite_numeral_only = 1;
+	} elsif ($arg eq "--nocite-numeral-only") {
+		$cite_numeral_only = 0;
+	} elsif ($arg eq "--help") {
+		print "Usage: $0",
+			" [ --section <label> ]",
+			" [ --date <string> ]",
+			" [ --lowercase | --preserve-case ]",
+			" [ --cite-numeral-only | --nocite-numeral-only ]",
+			"\n";
+		exit;
+	} else {
+		die "unrecognized switch $arg; try $0 --help\n";
+	}
+}
+
+sgml('start', sub { 
+	push_output('nul');
+	$raw_cdata = 1;			# Makes it a bit faster.
+	
+	# Links file
+	open(LINKSFILE, ">manpage.links");
+
+	$Refs = new SGMLS::Refs("manpage.refs", "manpage.log");
+});
+sgml('end', sub {
+	close(LINKSFILE);
+
+	# Explicitly invoke destructor,
+	# otherwise cache file may not get written!
+	# Thomas Lockhart, 1999-08-03, perl-5.004, RedHat5.2
+	undef $Refs;
+
+	if($blank_xrefs) {
+		warn "Warning: output contains unresolved XRefs\n";
+	}
+});
+
+
+########################################################################
+#
+# Output helpers 
+#
+########################################################################
+
+# Remove leading and trailing blanks.
+
+sub StripString
+{
+	my $str = shift;
+
+	$str = $1 if ($str =~ m#^\s*(\S.*)#);
+	$str = $1 if ($str =~ m#^(.*\S)\s*$#);
+
+	return $str;
+}
+
+# Generate a good file name, for given manpage title and manvolnum
+# (cdata content).
+# Cleanup whitespace and convert to lower case if required.
+
+sub FileInfo
+{
+	my $title = StripString(shift);
+	my $volnum = StripString(shift);
+
+	$title = lc $title if $lowercase_names;
+
+	$title =~ tr/ /_/;
+	$volnum =~ tr/ /_/;
+
+	my $sectcite = $volnum;
+	# The 'package name' part of the section should
+	# not be used when citing it.
+	if ($cite_numeral_only) {
+		$sectcite = $1 if ($volnum =~ /^([0-9]+)/);
+	}
+	
+	return ("$title.$volnum", "$title($sectcite)");
+}
+
+# Our own version of sgml() and output() to allow simple string output
+# to play well with roff's stupid whitespace rules. 
+
+sub man_sgml
+{
+	if(ref($_[1]) eq 'CODE') {
+		return &sgml;
+	}
+	
+	my $s = $_[1];
+	$s =~ s/\\/\\\\/g;
+	$s =~ s/'/\\'/g;
+
+	sgml($_[0], eval("sub { man_output '$s' }"));
+}
+
+sub man_output
+{
+	if($separator eq 'full') {
+		output "\n" unless $newline_last++;
+		output ".PP\n";
+		$separator = '';
+	}
+	
+	$_ = shift;
+	if(s/^\n//) {
+		output "\n" unless $newline_last++;
+	}
+	return if $_ eq '';
+	
+	output $_;
+
+	if(@_) {
+		output @_;
+		$newline_last = (pop(@_) =~ /\n$/);
+	} else {
+		$newline_last = ($_ =~ /\n$/)
+	}
+}
+
+# Fold lines into one, quote some characters
+sub fold_string
+{
+	$_ = shift;
+	
+	s/\\/\\\\/g;
+	s/"/""/g;
+
+	# Change tabs and newlines to spaces
+	# The newlines will be swallowed later while trimming
+	tr/[\t\n]/  /;
+
+	# Trim whitespace from beginning and end.
+	s/^ +//;
+	s/ +$//;
+
+	return $_;
+}
+	
+sub save_cdata()
+{
+	$raw_cdata++;
+	push_output('string');
+}
+
+sub bold_on()
+{
+	# If the last font is also bold, don't change anything.
+	# Basically this is to just get more readable man output.
+	if($fontstack[$#fontstack] ne 'bold') {
+		if(!$raw_cdata) {
+			output '\fB';
+			#$newline_last = 0;
+		}
+	}
+	push(@fontstack, 'bold');
+}
+
+sub italic_on()
+{
+	# If the last font is also italic, don't change anything.
+	if($fontstack[$#fontstack] ne 'italic') {
+		if(!$raw_cdata) {
+			output '\fI';
+			#$newline_last = 0;
+		}
+	}
+	push(@fontstack, 'italic');
+}
+
+sub font_off()
+{
+	my $thisfont = pop(@fontstack);
+	my $lastfont = $fontstack[$#fontstack];
+	
+	# Only output font change if it is different
+	if($thisfont ne $lastfont) {
+		if($raw_cdata)			{ return; }
+		elsif($lastfont eq 'bold') 	{ output '\fB'; }
+		elsif($lastfont eq 'italic')	{ output '\fI'; }
+		else				{ output '\fR'; }
+	
+		#$newline_last = 0;
+	}
+}
+
+
+########################################################################
+#
+# Manpage management
+#
+########################################################################
+
+sgml('<REFENTRY>', sub { 
+	# This will be overwritten at end of REFMETA, when we know the name of the page.
+	pop_output();
+	
+	$write_manpages = 1;		# Currently writing manpage.
+	
+	$nocollapse_whitespace = 0;	# Current whitespace collapse counter.
+	$newline_last = 1;		# At beginning of line?
+		# Just a bit of warning, you will see this variable manipulated
+		# manually a lot.  It makes the code harder to follow but it
+		# saves you from having to worry about collapsing at the end of
+		# parse, stopping at verbatims, etc.
+	$raw_cdata = 0;                 # Instructs certain output functions to
+					# leave CDATA alone, so we can assign
+					# it to a string and process it, etc.
+	@fontstack = ();		# Fonts being activated.
+	
+	$list_nestlevel = 0;		# Indent certain nested content.
+
+	# Separator to use between 'elements' in the content of a
+	# paragraph (usually).  This makes sure that PCDATA after a list
+	# in a PARA gets a break in between and not become part of the
+	# last listitem.  Note that we can't do it after the list ends,
+	# because often the list ends the paragraph and we'll get an
+	# extra break.  Anything that changes the separator status from
+	# the default should also save its last state in the parent
+	# element's ext, but I'm not going to explain further.  It's a
+	# gross hack and almost guaranteed to fail in unforseen cases.
+	# The only way to avoid all this is to use a tree/grove model, which
+	# we're _not_ doing.
+	$separator = '';
+	
+	$manpage_title = '';		# Needed for indexing.
+	$manpage_sect = '';
+	@manpage_names = ();
+	
+	$manpage_misc = '';
+
+	# check refentry's language
+	if(defined($_[0]->attribute('LANG')->value)) {
+	  $manpage_lang = $_[0]->attribute('LANG')->value;
+	}
+	else {
+	  $manpage_lang = '';
+	}
+});
+sgml('</REFENTRY>', sub {
+	if(!$newline_last) {
+		output "\n";
+	}
+	
+	$raw_cdata = 1;
+	push_output('nul');
+
+	$write_manpages = 0;
+});
+
+sgml('</REFMETA>', sub {
+	my ($filename, $citation) = 
+		FileInfo($manpage_title, $manpage_sect || $default_sect);
+
+	push_output('file', $filename);
+
+	output <<'_END_BANNER';
+.\" auto-generated by docbook2man-spec from docbook-utils package
+_END_BANNER
+
+	my $manpage_date = $_[0]->parent->ext->{'date'} || $default_date;
+
+	output '.TH "';
+
+	# If the title is not mixed-case, convention says to
+	# uppercase the whole title.  (The canonical title is
+	# lowercase.)
+	if($manpage_title =~ /[A-Z]/) {
+		output fold_string($manpage_title);
+	} else {
+		output uc(fold_string($manpage_title));
+	}
+	
+	output  '" "', fold_string($manpage_sect), 
+		'" "', fold_string($manpage_date),
+		'" "', $manpage_misc, 
+		'" "', $manpage_manual, 
+		"\"\n";
+
+	$newline_last = 1;
+
+	# References to this RefEntry.
+	if(defined($_[0]->parent->attribute('ID')->value)) {
+		my $id = $_[0]->parent->attribute('ID')->value;
+
+		# Append XREFLABEL content to citations.
+		if(defined($_[0]->parent->attribute('XREFLABEL')->value)) {
+			$citation = $_[0]->parent->attribute('XREFLABEL')->value .
+					' [' . $citation . ']';
+		}
+
+		$Refs->put("refentry:$id", $citation);
+	}
+});
+
+sgml('<REFENTRYTITLE>', sub { 
+	if($_[0]->in('REFMETA')) { 
+		save_cdata();
+	} else { 
+		# Manpage citations are in bold.
+		bold_on();
+	}
+});
+sgml('</REFENTRYTITLE>', sub { 
+	if($_[0]->in('REFMETA')) {
+		$raw_cdata--;
+		$manpage_title = pop_output();
+	}
+	else { font_off(); }
+
+	if (defined($_[0]->attribute('ID')->value)) {
+		my $id = $_[0]->attribute('ID')->value;
+		$Refs->put("refentrytitle:$id", $manpage_title);
+	}
+});
+
+sgml('<MANVOLNUM>', sub { 
+	if($_[0]->in('REFMETA')) { 
+		save_cdata();	
+	} else {
+		# Manpage citations use ().
+		output '(';
+	}
+});
+sgml('</MANVOLNUM>', sub { 
+	if($_[0]->in('REFMETA')) {
+		$raw_cdata--;
+		$manpage_sect = pop_output();
+	}
+	else { output ')' }
+});
+
+sgml('<REFMISCINFO>', \&save_cdata);
+sgml('</REFMISCINFO>', sub { 
+	$raw_cdata--;
+	$manpage_misc = fold_string(pop_output());
+});
+
+
+# NAME section
+#man_sgml('<REFNAMEDIV>', "\n.SH NAME\n");
+man_sgml('<REFNAMEDIV>', sub {
+	my %text = { fr=>'NOM', es=>'NOMBRE', pl=>'NAZWA' };
+	
+	if(defined $text{lc($manpage_lang)})
+	{
+		man_output "\n.SH " . $text{lc($manpage_lang)} . "\n";
+	} elsif(defined $_[0]->attribute('LANG') and
+		defined $text{lc($_[0]->attribute('LANG')->value)})
+	{
+		man_output "\n.SH " . $text{lc($_[0]->attribute('LANG'))} . "\n";
+	} else {
+		man_output "\n.SH NAME\n";
+	}
+});
+
+sgml('<REFNAME>', \&save_cdata);
+sgml('</REFNAME>', sub { 
+	$raw_cdata--;
+	push(@manpage_names, pop_output());
+});
+
+sgml('<REFPURPOSE>', \&save_cdata);
+sgml('</REFPURPOSE>', sub { 
+	$raw_cdata--;
+	my $manpage_purpose = fold_string(pop_output());
+	
+	for(my $i = 0; $i < $#manpage_names; $i++) {
+		output fold_string($manpage_names[$i]), ', ';
+	}
+
+	output fold_string($manpage_names[$#manpage_names]);
+	output " \\- $manpage_purpose\n";
+
+	$newline_last = 1;
+
+	foreach(@manpage_names) {
+		# Don't link to itself
+		if($_ ne $manpage_title) {
+			print LINKSFILE "$manpage_title.$manpage_sect	$_.$manpage_sect\n";
+		}
+	}
+});
+	
+man_sgml('<REFCLASS>', "\n.sp\n");
+
+#RefDescriptor
+
+
+########################################################################
+#
+# SYNOPSIS section and synopses
+#
+########################################################################
+
+#man_sgml('<REFSYNOPSISDIV>', "\n.SH SYNOPSIS\n");
+man_sgml('<REFSYNOPSISDIV>', sub {
+	   if ($manpage_lang eq "pl") { man_output "\n.SH SKŁADNIA\n"; }
+	   # waits for another languages
+	   #elsif ($manpage_lang eq "xx") { man_output "\n.SH xxxxxxx\n"; } 
+	   else { man_output "\n.SH SYNOPSIS\n"; }
+});   
+
+man_sgml('</REFSYNOPSISDIV>', "\n");
+
+## FIXME! Must be made into block elements!!
+#sgml('<FUNCSYNOPSIS>', \&bold_on);
+#sgml('</FUNCSYNOPSIS>', \&font_off);
+#sgml('<CMDSYNOPSIS>', \&bold_on);
+#sgml('</CMDSYNOPSIS>', \&font_off);
+
+man_sgml('<FUNCSYNOPSIS>', sub {
+	man_output("\n.nf\n");
+	bold_on();
+});
+man_sgml('</FUNCSYNOPSIS>', sub {
+	man_output("\n.fi");
+	font_off();
+});
+
+man_sgml('<CMDSYNOPSIS>', "\n.sp\n");
+man_sgml('</CMDSYNOPSIS>', "\n");
+
+man_sgml('<FUNCPROTOTYPE>', "\n.sp\n");
+
+# Arguments to functions.  This is C convention.
+#man_sgml('<PARAMDEF>', '(');
+#man_sgml('</PARAMDEF>', ");\n");
+#man_sgml('<VOID>', "(void);\n");
+sub paramdef
+{
+	if($_[0]->parent->ext->{'inparams'}) {
+		output ', ';
+	} else {
+		output ' (';
+		$_[0]->parent->ext->{'inparams'} = 1;
+	}
+}
+man_sgml('<PARAMDEF>', \&paramdef);
+man_sgml('</FUNCPROTOTYPE>', ");\n");
+man_sgml('<VOID>', "(void");
+man_sgml('<VARARGS>', "(...");
+
+
+sub arg_start
+{
+	# my $choice = $_[0]->attribute('CHOICE')->value;
+
+	# The content model for CmdSynopsis doesn't include #PCDATA,
+	# so we won't see any of the whitespace in the source file,
+	# so we have to add it after each component.
+	man_output ' ';
+
+	if($_[0]->attribute('CHOICE')->value =~ /opt/i) {
+		man_output '[ ';
+	}
+	bold_on();
+}
+sub arg_end
+{
+	font_off();
+	if($_[0]->attribute('REP')->value =~ /^Repeat/i) {
+		italic_on();
+		man_output '...';
+		font_off();
+	}
+	if($_[0]->attribute('CHOICE')->value =~ /opt/i) {
+		man_output ' ] ';
+	}
+}
+
+sgml('<ARG>', \&arg_start);
+sgml('</ARG>', \&arg_end);
+sgml('<GROUP>', \&arg_start);
+sgml('</GROUP>', \&arg_end);
+
+sgml('<OPTION>', \&bold_on);
+sgml('</OPTION>', \&font_off);
+
+# FIXME: This is one _blank_ line.
+man_sgml('<SBR>', "\n\n");
+
+
+########################################################################
+#
+# General sections
+#
+########################################################################
+
+# The name of the section is handled by TITLE.  This just sets
+# up the roff markup.
+man_sgml('<REFSECT1>', sub { $separator = ''; man_output "\n.SH "});
+man_sgml('<REFSECT2>', sub { $separator = ''; man_output "\n.SS "});
+man_sgml('<REFSECT3>', sub { $separator = ''; man_output "\n.SS "});
+
+
+########################################################################
+#
+# Titles, metadata.
+#
+########################################################################
+
+sgml('<TITLE>', sub {
+	if($_[0]->in('REFERENCE') or $_[0]->in('BOOK')) {
+		$write_manpages = 1;
+	}
+	save_cdata();
+});
+sgml('</TITLE>', sub {
+	my ($element, $event) = @_;
+	my $title = fold_string(pop_output());
+	$raw_cdata--;
+	
+	if($element->in('REFERENCE') or $element->in('BOOK')) {
+		# We use TITLE of enclosing Reference or Book as manual name
+		$manpage_manual = $title;
+		$write_manpages = 0;
+	}
+	elsif(exists $element->parent->ext->{'title'}) {
+		# By far the easiest case.  Just fold the string as
+		# above, and then set the parent element's variable.
+		$_[0]->parent->ext->{'title'} = $title;
+	}
+	else {
+		# If the parent element's handlers are lazy, 
+		# output the folded string for them :)
+		# We assume they want uppercase and a newline.
+		man_output '"', uc($title), "\"\n";
+	}
+
+	if (defined($element->attribute('ID')->value)) {
+		my $id = $_[0]->attribute('ID')->value;
+		$Refs->put("title:$id", $title);
+	}
+
+	my ($filename, $citation) =
+		FileInfo($manpage_title, $manpage_sect || $default_sect);
+	my $parentid = $element->parent->attribute('ID')->value;
+	if ($parentid and ($element->in('REFSECT1') or $element->in('REFSECT2') or $element->in('REFSECT3'))) {
+		$Refs->put("refsect:$parentid", "$citation");
+	}
+});
+
+sgml('<ATTRIBUTION>', sub { 
+	if($_[0]->in('BLOCKQUOTE')) {
+		push_output('string');
+	}
+});
+sgml('</ATTRIBUTION>', sub { 
+	if($_[0]->in('BLOCKQUOTE')) {
+		$_[0]->parent->ext->{'attribution'} = pop_output(); 
+	} else {
+		# For an Epigraph.
+		man_output "\n\n";
+	}
+});
+
+sgml('<DATE>', sub {
+      save_cdata();
+});
+sgml('</DATE>', sub {
+      $_[0]->parent->parent->ext->{'date'} = fold_string(pop_output());
+      $raw_cdata--;
+});
+
+sub ignore_content { push_output 'nul'; }
+sub restore_content { pop_output(); }
+
+sgml('<DOCINFO>', \&ignore_content);
+sgml('</DOCINFO>', \&restore_content);
+sgml('<REFSYNOPSISDIVINFO>', \&ignore_content);
+sgml('</REFSYNOPSISDIVINFO>', \&restore_content);
+sgml('<REFSECT1INFO>', \&ignore_content);
+sgml('</REFSECT1INFO>', \&restore_content);
+sgml('<REFSECT2INFO>', \&ignore_content);
+sgml('</REFSECT2INFO>', \&restore_content);
+sgml('<REFSECT3INFO>', \&ignore_content);
+sgml('</REFSECT3INFO>', \&restore_content);
+
+sgml('<INDEXTERM>', \&ignore_content);
+sgml('</INDEXTERM>', \&restore_content);
+
+sgml('<AUTHORBLURB>', \&ignore_content);
+sgml('</AUTHORBLURB>', \&restore_content);
+
+
+########################################################################
+#
+# Set bold on enclosed content 
+#
+########################################################################
+
+sgml('<APPLICATION>', \&bold_on);
+sgml('</APPLICATION>', \&font_off);
+
+sgml('<CLASSNAME>', \&bold_on);		sgml('</CLASSNAME>', \&font_off);
+sgml('<STRUCTNAME>', \&bold_on);	sgml('</STRUCTNAME>', \&font_off);
+sgml('<STRUCTFIELD>', \&bold_on);	sgml('</STRUCTFIELD>', \&font_off);
+sgml('<SYMBOL>', \&bold_on);		sgml('</SYMBOL>', \&font_off);
+sgml('<TYPE>', \&bold_on);		sgml('</TYPE>', \&font_off);
+
+sgml('<ENVAR>', \&bold_on);	sgml('</ENVAR>', \&font_off);
+
+sgml('<FUNCTION>', \&bold_on);	sgml('</FUNCTION>', \&font_off);
+
+sgml('<EMPHASIS>', \&bold_on);	sgml('</EMPHASIS>', \&font_off);
+
+sgml('<ERRORNAME>', \&bold_on);	sgml('</ERRORNAME>', \&font_off);
+# ERRORTYPE
+
+sgml('<COMMAND>', \&bold_on);	sgml('</COMMAND>', \&font_off);
+
+sgml('<GUIBUTTON>', \&bold_on);	sgml('</GUIBUTTON>', \&font_off);
+sgml('<GUIICON>', \&bold_on);	sgml('</GUIICON>', \&font_off);
+# GUILABEL
+# GUIMENU
+# GUIMENUITEM
+# GUISUBMENU
+# MENUCHOICE
+
+sgml('<ACCEL>', \&bold_on);	sgml('</ACCEL>', \&font_off);
+# KEYCODE
+# SHORTCUT
+
+
+sgml('<KEYCOMBO>', sub {
+	$separator = 'none';
+	$_[0]->ext->{'separator'} = 'none';
+});
+sgml('</KEYCOMBO>', sub { $separator = $_[0]->parent->ext->{'separator'}; });
+
+sub _keycombo {
+	if($_[0]->in('KEYCOMBO')) {
+		if($separator eq 'none') { $separator = '' }
+		else { man_output "+"; }
+	}
+	bold_on();
+}
+sgml('<KEYCAP>', \&_keycombo);	sgml('</KEYCAP>', \&font_off);
+sgml('<KEYSYM>', \&_keycombo);	sgml('</KEYSYM>', \&font_off);
+sgml('<MOUSEBUTTON>', \&_keycombo);	sgml('</MOUSEBUTTON>', \&font_off);
+
+
+sgml('<USERINPUT>', \&bold_on);	sgml('</USERINPUT>', \&font_off);
+
+sgml('<INTERFACEDEFINITION>', \&bold_on);
+sgml('</INTERFACEDEFINITION>', \&font_off);
+
+# May need to look at the CLASS
+sgml('<SYSTEMITEM>', \&bold_on);
+sgml('</SYSTEMITEM>', \&font_off);
+
+
+########################################################################
+#
+# Set italic on enclosed content 
+#
+########################################################################
+
+sgml('<FIRSTTERM>', \&italic_on);	sgml('</FIRSTTERM>', \&font_off);
+
+sgml('<FILENAME>', \&italic_on);	sgml('</FILENAME>', \&font_off);
+sgml('<PARAMETER>', \&italic_on);	sgml('</PARAMETER>', \&font_off);
+sgml('<PROPERTY>', \&italic_on);	sgml('</PROPERTY>', \&font_off);
+
+sgml('<REPLACEABLE>', sub {
+	italic_on();
+	if($_[0]->in('TOKEN')) {
+		# When tokenizing, follow more 'intuitive' convention
+		output "<";
+	}
+});
+sgml('</REPLACEABLE>', sub {
+	if($_[0]->in('TOKEN')) {
+		output ">";
+	}
+	font_off();
+});
+
+sgml('<CITETITLE>', \&italic_on);	sgml('</CITETITLE>', \&font_off);
+sgml('<FOREIGNPHRASE>', \&italic_on);	sgml('</FOREIGNPHRASE>', \&font_off);
+
+sgml('<LINEANNOTATION>', \&italic_on);	sgml('</LINEANNOTATION>', \&font_off);
+
+
+########################################################################
+#
+# Other 'inline' elements 
+#
+########################################################################
+
+man_sgml('<EMAIL>', '<');
+man_sgml('</EMAIL>', '>');
+man_sgml('<OPTIONAL>', '[');
+man_sgml('</OPTIONAL>', ']');
+
+man_sgml('</TRADEMARK>', "\\u\\s-2TM\\s+2\\d");
+
+man_sgml('<COMMENT>', "[Comment: ");
+man_sgml('</COMMENT>', "]");
+
+man_sgml('<QUOTE>', "``");
+man_sgml('</QUOTE>', "''");
+
+#man_sgml('<LITERAL>', '"');
+#man_sgml('</LITERAL>', '"');
+# There doesn't seem to be a good way to represent LITERAL in -man
+# ComputerOutput, SGMLTag, Markup are the same thing.
+
+# These create spaces between content in special elements
+# without PCDATA content.
+man_sgml('</HONORIFIC>', " ");
+man_sgml('</FIRSTNAME>', " ");
+man_sgml('</SURNAME>', " ");
+man_sgml('</LINEAGE>', " ");
+man_sgml('</OTHERNAME>', " ");
+
+man_sgml('<AFFILIATION>', "(");
+man_sgml('</AFFILIATION>', ") ");
+man_sgml('<CONTRIB>', "(");
+man_sgml('</CONTRIB>', ") ");
+
+man_sgml('</STREET>', " ");
+man_sgml('</POB>', " ");
+man_sgml('</POSTCODE>', " ");
+man_sgml('</CITY>', " ");
+man_sgml('</STATE>', " ");
+man_sgml('</COUNTRY>', " ");
+man_sgml('</PHONE>', " ");
+man_sgml('</FAX>', " ");
+man_sgml('</OTHERADDRESS>', " ");
+
+man_sgml('</ALT>', ": ");
+man_sgml('<GRAPHIC>', " [GRAPHIC] ");
+
+# No special presentation:
+
+# AUTHORINITIALS
+
+# ABBREV
+# ACTION
+# ACRONYM
+# CITATION
+# PHRASE
+# QUOTE
+# WORDASWORD
+
+# PROMPT
+# RETURNVALUE
+# TOKEN
+
+# DATABASE
+# HARDWARE
+# INTERFACE
+# MEDIALABEL
+
+
+########################################################################
+#
+# Paragraph and paragraph-like elements 
+#
+########################################################################
+
+sub para_start {
+	if($separator eq '' or $separator eq 'full') {
+		$separator = '';
+		man_output "\n.PP\n";
+	} elsif($separator eq 'blank') { 
+		man_output "\n\n";
+	} elsif($separator eq 'none' ) {
+		$_[0]->parent->ext->{'separator'} = 'blank';
+		$separator = 'blank';
+	}
+}
+# Actually applies to a few other block elements as well
+sub para_end {
+	$separator = $_[0]->parent->ext->{'separator'};
+	man_output "\n";
+}
+
+sgml('<PARA>', \&para_start);
+sgml('</PARA>', \&para_end);
+sgml('<SIMPARA>', \&para_start);
+sgml('</SIMPARA>', \&para_end);
+
+# Nothing special, except maybe FIXME set nobreak.
+sgml('<INFORMALEXAMPLE>', \&para_start);
+sgml('</INFORMALEXAMPLE>', \&para_end);
+
+
+########################################################################
+#
+# Blocks using SS sections
+#
+########################################################################
+
+# FIXME: We need to consider the effects of SS
+# in a hanging tag :(
+
+# Complete with the optional-title dilemma (again).
+sgml('<ABSTRACT>', sub {
+	$_[0]->ext->{'title'} = 'ABSTRACT';
+	output "\n" unless $newline_last++;
+	push_output('string');
+});
+sgml('</ABSTRACT>', sub {
+	my $content = pop_output();
+	
+	# As ABSTRACT is never on the same level as RefSect1,
+	# this leaves us with only .SS in terms of -man macros.
+	output ".SS \"", uc($_[0]->ext->{'title'}), "\"\n";
+
+	output $content;
+	output "\n" unless $newline_last++;
+});
+
+
+
+# Ah, I needed a break.  Example always has a title.
+sgml('<EXAMPLE>', sub { $separator = ''; man_output "\n.SS "});
+sgml('</EXAMPLE>', \&para_end);
+
+# Same with sidebar.
+sgml('<SIDEBAR>', sub { $separator = ''; man_output "\n.SS "});
+sgml('</SIDEBAR>', \&para_end);
+
+sgml('<FORMALPARA>', sub { $separator = ''; man_output "\n.SS "});
+sgml('</FORMALPARA>', \&para_end);
+
+sgml('<FIGURE>', sub { $separator = ''; man_output "\n.SS "});
+sgml('</FIGURE>', \&para_end);
+
+
+
+# NO title.
+sgml('<HIGHLIGHTS>', sub { $separator = ''; man_output "\n.SS HIGHLIGHTS\n"});
+sgml('</HIGHLIGHTS>', \&para_end);
+
+
+########################################################################
+#
+# Indented 'Block' elements 
+#
+########################################################################
+
+sub indent_block_start
+{
+	$separator = '';
+	man_output "\n.sp\n.RS\n";
+}
+sub indent_block_end
+{
+	$separator = $_[0]->parent->ext->{'separator'};
+	man_output "\n.RE\n.sp\n";
+}
+
+sgml('<ADDRESS>', sub {
+	&indent_block_start;
+	if($_[0]->attribute('FORMAT')->type eq 'NOTATION'
+	   and $_[0]->attribute('FORMAT')->value->name eq 'LINESPECIFIC') {
+		&verbatim_start;
+	}
+});
+sgml('</ADDRESS>', sub {
+	if($_[0]->attribute('FORMAT')->type eq 'NOTATION'
+	   and $_[0]->attribute('FORMAT')->value->name eq 'LINESPECIFIC') {
+		&verbatim_end;
+	}
+	&indent_block_end;
+});
+	
+# This element is almost like an admonition (below),
+# only the default title is blank :)
+
+sgml('<BLOCKQUOTE>', sub { 
+	$_[0]->ext->{'title'} = ''; 
+	&indent_block_start;
+	push_output('string');
+});
+sgml('</BLOCKQUOTE>', sub {
+	my $content = pop_output();
+
+	if($_[0]->ext->{'title'}) {
+		output ".B \"", $_[0]->ext->{'title'}, ":\"\n";
+	}
+	
+	output $content;
+
+	if($_[0]->ext->{'attribution'}) {
+		man_output "\n\n                -- ",
+				$_[0]->ext->{'attribution'}, "\n";
+	}
+	
+	&indent_block_end;
+});
+
+# Set off admonitions from the rest of the text by indenting.
+# FIXME: Need to check if this works inside paragraphs, not enclosing them.
+sub admonition_end {
+	my $content = pop_output();
+
+	# When the admonition is only one paragraph,
+	# it looks nicer if the title was inline.
+	my $num_para;
+	while ($content =~ /^\.PP/gm) { $num_para++ }
+	if($num_para==1) {
+		$content =~ s/^\.PP\n//;
+	}
+	
+	output ".B \"" . $_[0]->ext->{'title'} . ":\"\n";
+	output $content;
+	
+	&indent_block_end;
+}
+
+sgml('<NOTE>', sub {
+	# We can't see right now whether or not there is a TITLE
+	# element, so we have to save the output now and add it back
+	# at the end of this admonition.
+	$_[0]->ext->{'title'} = 'Note';
+	
+	&indent_block_start;
+	
+	push_output('string');
+});
+sgml('</NOTE>', \&admonition_end);
+
+# Same as above.
+sgml('<WARNING>', sub { 
+	$_[0]->ext->{'title'} = 'Warning'; 
+	&indent_block_start;
+	push_output('string');
+});
+sgml('</WARNING>', \&admonition_end);
+
+sgml('<TIP>', sub {
+	$_[0]->ext->{'title'} = 'Tip';
+	&indent_block_start;
+	push_output('string');
+});
+sgml('</TIP>', \&admonition_end);
+sgml('<CAUTION>', sub {
+	$_[0]->ext->{'title'} = 'Caution';
+	&indent_block_start;
+	push_output('string');
+});
+sgml('</CAUTION>', \&admonition_end);
+
+sgml('<IMPORTANT>', sub {
+	$_[0]->ext->{'title'} = 'Important';
+	&indent_block_start;
+	push_output('string');
+});
+sgml('</IMPORTANT>', \&admonition_end);
+
+
+########################################################################
+#
+# Verbatim displays. 
+#
+########################################################################
+
+sub verbatim_start {
+	$separator = '';
+	man_output "\n.sp\n";
+	man_output "\n.nf\n" unless $nocollapse_whitespace++;
+}
+
+sub verbatim_end {
+	man_output "\n.sp\n";
+	man_output "\n.fi\n" unless --$nocollapse_whitespace;
+	$separator = $_[0]->parent->ext->{'separator'};
+}
+
+sgml('<PROGRAMLISTING>', \&verbatim_start); 
+sgml('</PROGRAMLISTING>', \&verbatim_end);
+
+sgml('<SCREEN>', \&verbatim_start); 
+sgml('</SCREEN>', \&verbatim_end);
+
+sgml('<LITERALLAYOUT>', \&verbatim_start); 
+sgml('</LITERALLAYOUT>', \&verbatim_end);
+
+sgml('<SYNOPSIS>', sub {
+	my $format = $_[0]->attribute('FORMAT');
+
+	if($format->type eq 'NOTATION'
+	   and $format->value->name eq 'LINESPECIFIC')
+	{
+		&verbatim_start;
+	} else {
+		$separator = '';
+		man_output "\n.sp\n";
+	}
+});
+
+sgml('</SYNOPSIS>', sub {
+	my $format = $_[0]->attribute('FORMAT');
+	
+	if($format->type eq 'NOTATION'
+	   and $format->value->name eq 'LINESPECIFIC')
+	{
+		&verbatim_end;
+	} else {
+		man_output "\n";
+		$_[0]->parent->ext->{'separator'} = 'full';
+		$separator = 'full';
+	}
+});
+
+
+########################################################################
+#
+# Lists
+#
+########################################################################
+
+# Indent nested lists.
+sub list_start {
+	man_output "\n.RS\n" if $list_nestlevel++;
+}
+sub list_end {
+	man_output "\n.RE\n" if --$list_nestlevel;
+	$_[0]->parent->ext->{'separator'} = 'full';
+	$separator = 'full';
+}
+
+sgml('<VARIABLELIST>', \&list_start);
+sgml('</VARIABLELIST>', \&list_end);
+sgml('<ITEMIZEDLIST>', \&list_start);
+sgml('</ITEMIZEDLIST>', \&list_end);
+sgml('<ORDEREDLIST>', sub { 
+	&list_start;
+	$_[0]->ext->{'count'} = 1;
+});
+sgml('</ORDEREDLIST>', \&list_end);
+		
+# Output content on one line, bolded.
+sgml('<TERM>', sub { 
+	man_output "\n.TP\n";
+	bold_on();
+	push_output('string');
+});
+sgml('</TERM>', sub { 
+	my $term = StripString(pop_output());
+	$term =~ tr/\n/ /;
+	output $term;
+	font_off();
+	output "\n";
+	$newline_last = 1;
+});
+	
+sgml('<LISTITEM>', sub {
+	# A bulleted list.
+	if($_[0]->in('ITEMIZEDLIST')) {
+		man_output "\n.TP 0.2i\n\\(bu\n";
+	}
+
+	# Need numbers.
+	# Assume Arabic numeration for now.
+	elsif($_[0]->in('ORDEREDLIST')) {
+		man_output "\n.IP ", $_[0]->parent->ext->{'count'}++, ". \n";
+	}
+	
+	$_[0]->ext->{'separator'} = 'none';
+	$separator = 'none';
+});
+
+sgml('<SIMPLELIST>', sub {
+	$_[0]->ext->{'first_member'} = 1;
+});
+sgml('<MEMBER>', sub {
+	my $parent = $_[0]->parent;
+	
+	if($parent->attribute('TYPE')->value =~ /Inline/i) {
+		if($parent->ext->{'first_member'}) {
+			# If this is the first member don't put any commas
+			$parent->ext->{'first_member'} = 0;
+		} else {
+			man_output ", ";
+		}
+
+	# We don't really have Horiz rendering, so it's the same
+	# as Vert.
+	} else {
+		man_output "\n\n";
+	}
+});
+
+# We implement Procedures as indent and lists
+
+sgml('<PROCEDURE>', sub {
+	$_[0]->ext->{'count'} = 1;
+	&indent_block_start;
+});
+sgml('</PROCEDURE>', sub {
+	&indent_block_end;
+	$_[0]->parent->ext->{'separator'} = 'full';
+	$separator = 'full';
+});
+
+sgml('<STEP>', sub {
+	man_output "\n.IP ", $_[0]->parent->ext->{'count'}++, ". \n";
+	$_[0]->ext->{'separator'} = 'none';
+	$separator = 'none';
+});
+
+
+########################################################################
+#
+# Linkage, cross references
+#
+########################################################################
+
+# Print the URL
+sgml('</ULINK>', sub {
+	man_output ' <URL:', $_[0]->attribute('URL')->value, '>';
+});
+
+# If cross reference target is a RefEntry, 
+# output CiteRefEntry-style references.
+sgml('<XREF>', sub {
+	my $id = $_[0]->attribute('LINKEND')->value;
+
+	my $manref = $Refs->get("refentry:$id") || $Refs->get("refsect:$id");
+	if(!defined $manref) {
+		$blank_xrefs++ if $write_manpages;
+		man_output "[XRef to $id]";
+		return;
+	}
+
+	# Limited ENDTERM support.
+	if(defined $_[0]->attribute('ENDTERM')->value) {
+		my $endterm = $_[0]->attribute('ENDTERM')->value;
+		my $content = $Refs->get("title:$endterm") ||
+				$Refs->get("refentrytitle:$endterm");
+		man_output $content, ' [';
+	}
+
+	# This also displays the XREFLABEL (as bold)...
+	# It's not worth the bother to fix it though, there
+	# are better tools for this.
+	my ($title, $sect) = ($manref =~ /(.*)(\(.*\))/);
+	bold_on();
+	man_output $title;
+	font_off();
+	man_output $sect;
+
+	if(defined $_[0]->attribute('ENDTERM')->value) {
+		man_output ']';
+	}
+});
+
+# Anchor
+
+########################################################################
+#
+# SDATA 
+#
+########################################################################
+
+man_sgml('|[lt    ]|', '<');
+man_sgml('|[equals]|', '=');
+man_sgml('|[gt    ]|', '>');
+man_sgml('|[plus  ]|', '\(pl');
+man_sgml('|[dollar]|', '$');
+man_sgml('|[num   ]|', '#');
+man_sgml('|[percnt]|', '%');
+man_sgml('|[amp   ]|', '&');
+man_sgml('|[commat]|', '@');
+man_sgml('|[lsqb  ]|', '[');
+man_sgml('|[bsol  ]|', '\e');
+man_sgml('|[rsqb  ]|', ']');
+man_sgml('|[lcub  ]|', '{');
+man_sgml('|[verbar]|', '\(or');
+man_sgml('|[rcub  ]|', '}');
+man_sgml('|[excl  ]|', '!');
+man_sgml('|[quot  ]|', '"');
+man_sgml('|[apos  ]|', '\\&\'');
+man_sgml('|[lpar  ]|', '(');
+man_sgml('|[rpar  ]|', ')');
+man_sgml('|[comma ]|', ',');
+man_sgml('|[lowbar]|', '_');
+man_sgml('|[period]|', '.');
+man_sgml('|[sol   ]|', '/');
+man_sgml('|[colon ]|', ':');
+man_sgml('|[semi  ]|', ';');
+man_sgml('|[quest ]|', '?');
+man_sgml('|[grave ]|', '`');
+man_sgml('|[tilde ]|', '~');
+man_sgml('|[half  ]|', '\(12');
+man_sgml('|[frac12]|', '\(12');
+man_sgml('|[frac14]|', '\(14');
+man_sgml('|[frac34]|', '\(34');
+man_sgml('|[frac18]|', '1/8');
+man_sgml('|[frac38]|', '3/8');
+man_sgml('|[frac58]|', '5/8');
+man_sgml('|[frac78]|', '7/8');
+man_sgml('|[sup1  ]|', '\u1\l');
+man_sgml('|[sup2  ]|', '\u2\l');
+man_sgml('|[sup3  ]|', '\u3\l');
+man_sgml('|[plusmn]|', '\(+-');
+man_sgml('|[divide]|', '\(di');
+man_sgml('|[times ]|', '\(ti');
+man_sgml('|[pound ]|', '#');
+man_sgml('|[cent  ]|', '\(ct');
+man_sgml('|[yen   ]|', 'yen');
+man_sgml('|[ast   ]|', '*');
+man_sgml('|[horbar]|', '_');
+man_sgml('|[micro ]|', '\(*m');
+man_sgml('|[ohm   ]|', '\(*W');
+man_sgml('|[deg   ]|', '\(de');
+man_sgml('|[sect  ]|', '\(sc');
+man_sgml('|[larr  ]|', '\(<-');
+man_sgml('|[rarr  ]|', '\(->');
+man_sgml('|[uarr  ]|', '\(ua');
+man_sgml('|[darr  ]|', '\(da');
+man_sgml('|[copy  ]|', '\(co');
+man_sgml('|[reg   ]|', '\(rg');
+man_sgml('|[trade ]|', '\(tm');
+man_sgml('|[brvbar]|', '|');
+man_sgml('|[not   ]|', '\(no');
+man_sgml('|[hyphen]|', '\-');
+man_sgml('|[laquo ]|', '<<');
+man_sgml('|[raquo ]|', '>>');
+man_sgml('|[lsquo ]|', '`');
+man_sgml('|[rsquo ]|', '\&\'');
+man_sgml('|[ldquo ]|', '"');
+man_sgml('|[rdquo ]|', '"');
+man_sgml('|[nbsp  ]|', '\ ');
+man_sgml('|[shy   ]|', '\%');
+man_sgml('|[emsp  ]|', '\ \ ');
+man_sgml('|[ensp  ]|', '\ ');
+man_sgml('|[emsp3 ]|', '\ ');
+man_sgml('|[emsp4 ]|', '\ ');
+man_sgml('|[numsp ]|', '\0');
+man_sgml('|[puncsp]|', '\|');
+man_sgml('|[thinsp]|', '\!');
+man_sgml('|[hairsp]|', '\\^');
+man_sgml('|[mdash ]|', '\(em');
+man_sgml('|[ndash ]|', '-');
+man_sgml('|[dash  ]|', '-');
+man_sgml('|[blank ]|', '\ ');
+man_sgml('|[hellip]|', '\&...');
+man_sgml('|[nldr  ]|', '\&..');
+man_sgml('|[frac13]|', '1/3');
+man_sgml('|[frac23]|', '2/3');
+man_sgml('|[frac15]|', '1/5');
+man_sgml('|[frac25]|', '2/5');
+man_sgml('|[frac35]|', '3/5');
+man_sgml('|[frac45]|', '4/5');
+man_sgml('|[frac16]|', '1/6');
+man_sgml('|[frac56]|', '5/6');
+man_sgml('|[cir   ]|', '\(ci');
+man_sgml('|[squ   ]|', '\(sq');
+man_sgml('|[star  ]|', '\(**');
+man_sgml('|[bull  ]|', '\(bu');
+man_sgml('|[dagger]|', '\(dg');
+man_sgml('|[Dagger]|', '\(dd');
+man_sgml('|[caret ]|', '\^');
+man_sgml('|[lsquor]|', '`');
+man_sgml('|[ldquor]|', '``');
+man_sgml('|[fflig ]|', '\(ff');
+man_sgml('|[filig ]|', '\(fi');
+man_sgml('|[ffilig]|', '\(Fi');
+man_sgml('|[ffllig]|', '\(Fl');
+man_sgml('|[fllig ]|', '\(fl');
+man_sgml('|[rdquor]|', '\&\'\'');
+man_sgml('|[rsquor]|', '\&\'');
+man_sgml('|[vellip]|', '\&...');
+man_sgml('|[aacute]|', '\(a\'');
+man_sgml('|[Aacute]|', '\(A\'');
+man_sgml('|[acirc ]|', '\(a^');
+man_sgml('|[Acirc ]|', '\(A^');
+man_sgml('|[agrave]|', '\(a`');
+man_sgml('|[Agrave]|', '\(A`');
+man_sgml('|[auml  ]|', '\(a:');
+man_sgml('|[aelig ]|', '\(ae');
+man_sgml('|[AElig ]|', '\(AE');
+man_sgml('|[eacute]|', '\(e\'');
+man_sgml('|[Eacute]|', '\(E\'');
+man_sgml('|[egrave]|', '\(e`');
+man_sgml('|[Egrave]|', '\(E`');
+man_sgml('|[iacute]|', '\(i\'');
+man_sgml('|[Iacute]|', '\(I\'');
+man_sgml('|[igrave]|', '\(i`');
+man_sgml('|[Igrave]|', '\(I`');
+man_sgml('|[ntilde]|', '\(n~');
+man_sgml('|[Ntilde]|', '\(N~');
+man_sgml('|[oacute]|', '\(o\'');
+man_sgml('|[Oacute]|', '\(O\'');
+man_sgml('|[ograve]|', '\(o`');
+man_sgml('|[Ograve]|', '\(O`');
+man_sgml('|[oslash]|', '\(o/');
+man_sgml('|[Oslash]|', '\(O/');
+man_sgml('|[szlig ]|', '\(ss');
+man_sgml('|[thorn ]|', '\(th');
+man_sgml('|[uacute]|', '\(u\'');
+man_sgml('|[Uacute]|', '\(U\'');
+man_sgml('|[ugrave]|', '\(u`');
+man_sgml('|[Ugrave]|', '\(U`');
+man_sgml('|[aogon ]|', '\(ao');
+man_sgml('|[agr   ]|', '\(*a');
+man_sgml('|[Agr   ]|', '\(*A');
+man_sgml('|[bgr   ]|', '\(*b');
+man_sgml('|[Bgr   ]|', '\(*B');
+man_sgml('|[ggr   ]|', '\(*g');
+man_sgml('|[Ggr   ]|', '\(*G');
+man_sgml('|[dgr   ]|', '\(*d');
+man_sgml('|[Dgr   ]|', '\(*D');
+man_sgml('|[egr   ]|', '\(*e');
+man_sgml('|[Egr   ]|', '\(*E');
+man_sgml('|[zgr   ]|', '\(*z');
+man_sgml('|[Zgr   ]|', '\(*Z');
+man_sgml('|[eegr  ]|', '\(*y');
+man_sgml('|[EEgr  ]|', '\(*Y');
+man_sgml('|[thgr  ]|', '\(*h');
+man_sgml('|[THgr  ]|', '\(*H');
+man_sgml('|[igr   ]|', '\(*i');
+man_sgml('|[Igr   ]|', '\(*I');
+man_sgml('|[kgr   ]|', '\(*k');
+man_sgml('|[Kgr   ]|', '\(*K');
+man_sgml('|[lgr   ]|', '\(*l');
+man_sgml('|[Lgr   ]|', '\(*L');
+man_sgml('|[mgr   ]|', '\(*m');
+man_sgml('|[Mgr   ]|', '\(*M');
+man_sgml('|[ngr   ]|', '\(*n');
+man_sgml('|[Ngr   ]|', '\(*N');
+man_sgml('|[xgr   ]|', '\(*c');
+man_sgml('|[Xgr   ]|', '\(*C');
+man_sgml('|[ogr   ]|', '\(*o');
+man_sgml('|[Ogr   ]|', '\(*O');
+man_sgml('|[pgr   ]|', '\(*p');
+man_sgml('|[Pgr   ]|', '\(*P');
+man_sgml('|[rgr   ]|', '\(*r');
+man_sgml('|[Rgr   ]|', '\(*R');
+man_sgml('|[sgr   ]|', '\(*s');
+man_sgml('|[Sgr   ]|', '\(*S');
+man_sgml('|[sfgr  ]|', '\(ts');
+man_sgml('|[tgr   ]|', '\(*t');
+man_sgml('|[Tgr   ]|', '\(*T');
+man_sgml('|[ugr   ]|', '\(*u');
+man_sgml('|[Ugr   ]|', '\(*U');
+man_sgml('|[phgr  ]|', '\(*f');
+man_sgml('|[PHgr  ]|', '\(*F');
+man_sgml('|[khgr  ]|', '\(*x');
+man_sgml('|[KHgr  ]|', '\(*X');
+man_sgml('|[psgr  ]|', '\(*q');
+man_sgml('|[PSgr  ]|', '\(*Q');
+man_sgml('|[ohgr  ]|', '\(*w');
+man_sgml('|[OHgr  ]|', '\(*W');
+man_sgml('|[alpha ]|', '\(*a');
+man_sgml('|[beta  ]|', '\(*b');
+man_sgml('|[gamma ]|', '\(*g');
+man_sgml('|[Gamma ]|', '\(*G');
+man_sgml('|[delta ]|', '\(*d');
+man_sgml('|[Delta ]|', '\(*D');
+man_sgml('|[epsi  ]|', '\(*e');
+man_sgml('|[epsis ]|', '\(*e');
+man_sgml('|[zeta  ]|', '\(*z');
+man_sgml('|[eta   ]|', '\(*y');
+man_sgml('|[thetas]|', '\(*h');
+man_sgml('|[Theta ]|', '\(*H');
+man_sgml('|[iota  ]|', '\(*i');
+man_sgml('|[kappa ]|', '\(*k');
+man_sgml('|[lambda]|', '\(*l');
+man_sgml('|[Lambda]|', '\(*L');
+man_sgml('|[mu    ]|', '\(*m');
+man_sgml('|[nu    ]|', '\(*n');
+man_sgml('|[xi    ]|', '\(*c');
+man_sgml('|[Xi    ]|', '\(*C');
+man_sgml('|[pi    ]|', '\(*p');
+man_sgml('|[Pi    ]|', '\(*P');
+man_sgml('|[rho   ]|', '\(*r');
+man_sgml('|[sigma ]|', '\(*s');
+man_sgml('|[Sigma ]|', '\(*S');
+man_sgml('|[tau   ]|', '\(*t');
+man_sgml('|[upsi  ]|', '\(*u');
+man_sgml('|[Upsi  ]|', '\(*U');
+man_sgml('|[phis  ]|', '\(*f');
+man_sgml('|[Phi   ]|', '\(*F');
+man_sgml('|[chi   ]|', '\(*x');
+man_sgml('|[psi   ]|', '\(*q');
+man_sgml('|[Psi   ]|', '\(*X');
+man_sgml('|[omega ]|', '\(*w');
+man_sgml('|[Omega ]|', '\(*W');
+man_sgml('|[ap    ]|', '\(ap');
+man_sgml('|[equiv ]|', '\(==');
+man_sgml('|[ge    ]|', '\(>=');
+man_sgml('|[infin ]|', '\(if');
+man_sgml('|[isin  ]|', '\(sb');
+man_sgml('|[le    ]|', '\(<=');
+man_sgml('|[minus ]|', '\(mi');
+man_sgml('|[ne    ]|', '\(!=');
+man_sgml('|[prop  ]|', '\(pt');
+man_sgml('|[square]|', '\(sq');
+man_sgml('|[sub   ]|', '\(sb');
+man_sgml('|[sube  ]|', '\(ib');
+man_sgml('|[sup   ]|', '\(sp');
+man_sgml('|[supe  ]|', '\(ip');
+man_sgml('|[acute ]|', '\&\'');
+man_sgml('|[breve ]|', '\(be');
+man_sgml('|[caron ]|', '\(hc');
+man_sgml('|[cedil ]|', '\(cd');
+man_sgml('|[dot   ]|', '\(dt');
+man_sgml('|[macr  ]|', '\(ma');
+man_sgml('|[ogon  ]|', '\(og');
+man_sgml('|[ring  ]|', '\(ri');
+man_sgml('|[uml   ]|', '\(..');
+
+sgml('sdata',sub {
+	my ($element, $event) = @_;
+	my ($file, $line) = ($event->file, $event->line);
+	man_output "|[", $_[0], "]|";
+	warn "Warning: unrecognized SDATA '$_[0]'"
+	     . ($file && $line ? " in $file on line $line" : "")
+	     . ": please add definition to docbook2man-spec.pl\n";
+});
+
+#
+# Default handlers (uncomment these if needed).  Right now, these are set
+# up to gag on any unrecognised elements, sdata, processing-instructions,
+# or entities.
+#
+# sgml('start_element',sub { die "Unknown element: " . $_[0]->name; });
+# sgml('end_element','');
+
+# This is for weeding out and escaping certain characters.
+# This looks like it's inefficient since it's done on every line, but
+# in reality, SGMLSpm and sgmlspl parsing ESIS takes _much_ longer.
+
+sgml('cdata', sub
+{ 
+	if(!$write_manpages) { return; }
+	elsif($raw_cdata) { output $_[0]; return; }
+
+	if($separator eq 'full') {
+		output "\n" unless $newline_last++;
+		output ".PP\n";
+		$separator = '';
+	}
+	
+	# Escape backslashes
+	$_[0] =~ s/\\/\\\\/g;
+
+  # Escape dots and single quotes in column 1
+	$_[0] =~ s/^[ \t]*\./\\\&\./;
+	$_[0] =~ s/^[ \t]*\'/\\\&\'/;
+
+
+	# In non-'pre'-type elements:
+	if(!$nocollapse_whitespace) {
+		# Change tabs to spaces
+		$_[0] =~ tr/\t / /s;
+
+		# Do not allow indents at beginning of line
+		# groff chokes on that.
+		if($newline_last) { 
+			$_[0] =~ s/^ //;
+
+			# If the line is all blank, don't do anything.
+			if($_[0] eq '') { return; }
+			
+			$_[0] =~ s/^\./\\\&\./;
+	
+			# Argh... roff doesn't like ' for some unknown reason 
+			$_[0] =~ s/^\'/\\\&\'/;
+		}
+	}
+
+	$newline_last = 0;
+
+	output $_[0];
+});
+
+
+# When in whitespace-collapsing mode, we disallow consecutive newlines.
+
+sgml('re', sub
+{
+	if($nocollapse_whitespace || !$newline_last) {
+		output "\n";
+	}
+
+	$newline_last = 1;
+});
+
+sgml('pi', sub {});
+sgml('entity',sub { die "Unknown external entity: " . $_[0]->name; });
+sgml('start_subdoc',sub { die "Unknown subdoc entity: " . $_[0]->name; });
+sgml('end_subdoc',sub{});
+sgml('conforming',sub{});
+
+1;
+
-- 
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