Reading in non-XML file.

In XSLT1 is there a fairly straight-forward way of reading in a
non-XML file and then sending it as part of the output?

Say I have a file foo.txt containing:
=====
Foo
foo
blort
=====
and an XML file containing
=====
<a>
 <b/>
</a>
=====

=====
<a>
<b-new>
Foo
foo
blort
<b-new>
</a>
=====

Basically, I think I'm asking for unparsed-text() for XSLT1?  Is there
maybe an EXSLT extension or similar to do this?

thanks for any suggestions,
-James

--
James Cummings, Cummings dot James at GMail dot com