XML::TMX::Writer has a DATATYPE option 'ipf': IPF/Bookmaster. This was my first try at using it: 
#!/usr/bin/perl 

use strict;
use warnings;
use XML::TMX::Writer;

my $tmx = new XML::TMX::Writer();
$tmx->start_tmx( 
        OUTPUT => '/root/Desktop/log.tmx',
        SEGTYPE => qw[ :p :xpl :ul :li :eul ],
        DATATYPE => 'ipf',
);
$tmx->end_tmx();

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Since this was my first time, it probably will need considerable tweeking:). It produced this doc: 
<?xml version="1.0" encoding="UTF-8"?>
<tmx version="1.4">
 <header o-tmf="plain text" adminlang="en" creationdate="20111129T1731
+29Z" creationtoolversion="0.23" creationtool="XML::TMX::Writer" srcla
+ng="en" segtype="sentence" datatype="ipf">

</header>
 <body>


</body>
</tmx>

[download]

In reply to Re: Looking for parser of "bookmaster" script files by Khen1950fx
in thread Looking for parser of "bookmaster" script files by slugger415

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