> below for search/replace all the Unicode entities

your code does not appear to use any entity references.
[#x....] seems to be a private notation you are using to denote unicode
characters, but to XML it is just a string of 8 characters.
 &#x....; is a numeric hexadecimal character reference, not an entity
reference.

Your instance document does contain an entity reference ‐ 
but you don't show what definition you use for that. if you use the
definitions from
http://www.w3.org/2003/entities/2007/isonum.ent
then the definition is
<!ENTITY hyphen           "&#x02010;" >

in which case using &hyphen; in the source will look to XSLt just as if
you'd used the hyphen character directly.

> I am getting the output like xxx xxx [#x002d]

 do your entity files define the entities in this [] format?  if so then
the simplest is just to get a new set, that format was an informal
convention sometimes used for SGML SDATA entities in which the
replacement text was _never used_ as the system always replaced the
entity by a known character (that's what the S meant in SDATA) XML
doesn't have SDATA entities so you need a entity definition that gives a
real replacementm such as teh file I link to above.

If your hyphen entity is defined to be [#x02010] then using hyphen is
exactly teh same as using  [#x02010]  and the way to replace it is the
same you can't search for a single character, you need to search for
that 9 character string, eg replace(.,'[#x02010]','-') would make this
into an ASCII hyphen, but by far the simplest thing is to use a set of
entity definitions that define these characters with the unicode values
that you want.

David


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