Excerpts from John Harrison's message of Sun Sep 21 20:47:15 +0200 2008:
> I've hit another problem with the simple string transformation
> quotation parser (see my previous message). For the sake of this
> example, here is a somewhat simplified variant, which I turn
> into "Quotexpander.cma":

[...]

> Any idea what's going on? Do I need to put some kind of wrapping
> round the transformed phrase?

The camlp4 lexer allow much longer bracketing tokens like
  [<, >], [%, {#, ... )
so when using extensions of OCaml (since this lexer extension does
not break any OCaml code in original syntax) one have to put more
spaces to make separate tokens.

-- 
Nicolas Pouillard aka Ertai