Bugfix: incorrect quasi-quoting over #R syntax.

The issue is that ^#R(,(+ 2 2) ,(+ 3 3)) produces 4..6 rather
than #R(4..6). 4..6 is, of course, the syntax (rcons 4 6)
which evaluates to a range.  Here we want the range to which
it evaluates, not the syntax.

* eval.c (expand_qquote_rec): Handle the case when the
qquoted_form is a range atom: expand the from and to parts,
and generate a rcons expression. Though this seems to be
opposite to the previous paragraph, it's the right thing.

* parser.y (range): Drop the unquotes_occurs case which
produces rcons syntax. Produce a range object, always.
This is the source of the problem: a (rcons ...) expression
was produced here which was just traversed by the qquote
expander as list. It's the expander that must produce
the rcons expression.

0 files changed, 0 insertions, 0 deletions