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|
#! /usr/bin/perl -w
# This does trivial (and I mean _trivial_) conversion of Texinfo
# markup to Perl POD format. It's intended to be used to extract
# something suitable for a manpage from a Texinfo document.
$in = $ARGV[0];
$out = "x";
die "usage: $0 infile outfile\n" unless defined $in && defined $out;
close STDIN;
open(IN,$in);
$output = 0;
$ignore = 0;
%sects = ();
$section = "";
@icstack = ();
@endwstack = ();
$shift = "";
while(<IN>)
{
chomp;
/^\@end ignore/ and $ignore = 0, next;
next if $ignore;
/^\@c man begin ([A-Z]+)/ and $sect = $1, $output = 1, next;
/^\@c man end/ and do {
$_ = $section;
s/</</g;
s/>/>/g;
s/\@(?:dfn|var|emph|cite)\{([^\}]*)\}/I<$1>/g;
s/\@(?:code|kbd)\{([^\}]*)\}/C<$1>/g;
s/\@(?:samp|strong|key)\{([^\}]*)\}/B<$1>/g;
s/\@file\{([^\}]*)\}/F<$1>/g;
s/\@(?:url|email)\{([^\}]*)\}/E<lt>C<$1>E<rt>/g;
s/\@[a-z]?ref\{(?:[^\}]*)\}.?//g;
s/\(\@p[a-z]?ref\{(?:[^\}]*)\}\).?//g;
s/\@copyright\{\}//g;
s/\@noindent\s*//g;
s/\@refill//g;
s/\@\././g;
s/</E<lt>/g;
s/>/E<gt>/g;
s/</</g;
s/>/>/g;
$sects{$sect} = $_;
$section = "";
$output = 0;
next;
};
/^\@(c|[a-z]+index)\b/ and next;
/^\@setfilename\s+([^.]+)/ and $fn = $1, next;
/^\@settitle\s+([^.]+)/ and $tl = $1, next;
next unless $output;
/^\@ignore/ and $ignore = 1, next;
/^\@itemize (\@[a-z]+)/ and do {
push @endwstack, $endw;
push @icstack, $ic;
$ic = $1;
$ic =~ s/\@bullet/*/;
$ic =~ s/\@minus/-/;
$_ = "\n=over 4\n";
$endw = "itemize";
};
/^\@enumerate\s+([A-Z0-9]+)/ and do {
push @endwstack, $endw;
push @icstack, $ic;
$ic = $1 . ".";
$_ = "\n=over 4\n";
$endw = "enumerate";
};
/^\@table\s+(\@[a-z]+)/ and do {
push @endwstack, $endw;
push @icstack, $ic;
$ic = $1;
$ic =~ s/\@(?:samp|strong|key)/B/;
$ic =~ s/\@(?:code|kbd)/C/;
$ic =~ s/\@(?:dfn|var|emph|cite)/I/;
$ic =~ s/\@(?:file)/F/;
$_ = "\n=over 4\n";
$endw = "table";
};
/^\@((?:small)?example)/ and do {
push @endwstack, $endw;
$endw = $1;
$shift = "\t";
next;
};
/^\@end\s+([a-z]+)/ and do {
if(defined $endw)
{
die "\@$endw ended by \@end $1 at line $.\n"
unless $1 eq $endw;
if($endw =~ /example$/)
{
$shift = "";
$_ = "";
}
else
{
$_ = "\n=back\n";
undef $endw;
$ic = pop @icstack;
}
$endw = pop @endwstack;
}
};
/^\@itemx?\s*(.+)?$/ and do {
if(defined $1)
{
$_ = "=item $ic\<$1\>\n";
}
else
{
$_ = "=item $ic\n";
$ic =~ y/A-Ya-y1-8/B-Zb-z2-9/;
}
};
$section .= $shift.$_."\n";
}
$sects{NAME} = "$fn \- $tl\n";
for $sect (qw(NAME SYNOPSIS DESCRIPTION OPTIONS ENVIRONMENT FILES
BUGS NOTES SEEALSO AUTHOR COPYRIGHT))
{
if(exists $sects{$sect})
{
$head = $sect;
$head =~ s/SEEALSO/SEE ALSO/;
print "=head1 $head\n\n";
print $sects{$sect};
print "\n";
}
}
|
