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#!/usr/bin/perl
use strict;
## Copyright (C) Michael Still (mikal@stillhq.com)
## Released under the terms of the GNU GPL
##
## Hoon through the specified DocBook SGML file, and split out the
## man pages. These can then be processed into groff format, and
## installed if desired...
##
## Arguements: $1 -- the name of the sgml file
## $2 -- the directory to put the generated SGML files in
## $3 -- kernel version
my($SGML, $REF, $front, $refdata, $mode, $filename);
if(($ARGV[0] eq "") || ($ARGV[1] eq "") || ($ARGV[2] eq "")){
die "Usage: split-man <sgml file> <output dir> <kernel version>\n";
}
open SGML, "< $ARGV[0]" or die "Could not open input file \"$ARGV[0]\"\n";
if( ! -d "$ARGV[1]" ){
die "Output directory \"$ARGV[1]\" does not exist\n";
}
# Possible modes:
# 0: Looking for input I care about
# 1: Inside book front matter
# 2: Inside a refentry
# 3: Inside a refentry, and we know the filename
$mode = 0;
$refdata = "";
$front = "";
while(<SGML>){
# Starting modes
if(/<bookinfo>/ || /<docinfo>/){
$mode = 1;
}
elsif(/<refentry>/){
$mode = 2;
}
elsif(/<refentrytitle><phrase[^>]*>([^<]*)<.*$/){
$mode = 3;
$filename = $1;
$filename =~ s/struct //;
$filename =~ s/typedef //;
print "Found manpage for $filename\n";
open REF, "> $ARGV[1]/$filename.sgml" or
die "Couldn't open output file \"$ARGV[1]/$filename.sgml\": $!\n";
print REF <<EOF;
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN">
<!-- BEGINFRONTTAG: The following is front matter for the parent book -->
$front
<!-- ENDFRONTTAG: End front matter -->
$refdata
EOF
$refdata = "";
}
# Extraction
if($mode == 1){
chomp $_;
$front = "$front<!-- $_ -->\n";
}
elsif($mode == 2){
$refdata = "$refdata$_";
}
elsif($mode == 3){
# There are some fixups which need to be applied
if(/<\/refmeta>/){
print REF "<manvolnum>9</manvolnum>\n";
}
if(/<\/refentry>/){
print REF <<EOF;
<refsect1><title>About this document</title>
<para>
This documentation was generated with kernel version $ARGV[2].
</para>
</refsect1>
EOF
}
# For some reason, we title the synopsis twice in the main DocBook
if(! /<title>Synopsis<\/title>/){
if(/<refentrytitle>/){
s/struct //;
s/typedef //;
}
print REF "$_";
}
}
# Ending modes
if(/<\/bookinfo>/ || /<\/docinfo>/){
$mode = 0;
}
elsif(/<\/refentry>/){
$mode = 0;
close REF;
}
}
# And make sure we don't process this unnessesarily
$ARGV[0] =~ s/\.sgml/.9/;
`touch $ARGV[0]`;
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