> My question to the lex gurus: why doesn't this rule simply read
> xqcat {quote}{space}*{quote}
> considering that both \r and \n are members of {space}? In fact,
> shouldn't xqdouble and xqcat be combined and defined as above?
> Unless lex has some weird built-in special treatment of \n,
> I don't see why we need to call it out explicitly.
>
> Similar comments apply to xbcat and xhcat --- and I'm kind of
> wondering about xqliteral, xcline, and xcstop, all of which seem
> to accord undeserved special status to \n ...
Pretty sure that the SQL92 rules for the "string across lines" is more
restrictive than just allowing spaces between double quotes; you
actually need something close to a line break.
select * from "T1" "A1";
would do horrible things if I interpret your suggestion correctly.
But perhaps a somewhat more general rule would work, allowing \r \c
and \n as line break characters??
- Thomas
--
Thomas Lockhart lockhart@alumni.caltech.edu
South Pasadena, California
