Adding quote and unquote read syntax to list forms, resembling

Lisp. The difference is that splice is spelled ,* because @
already means something, and that there is only one quote operator.
None of this does anything; it is only syntax.

* lib.c (quote_s, qquote_s, unquote_s, splice_s): New variables.
(obj_init): New variables initialized.

* lib.h (quote_s, qquote_s, unquote_s, splice_s): Declared.

* parser.l: Added recognition rules.

* parser.y (SPLICE): New symbolic token.
(list): Added new syntax for quote and splicing.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index a395b76b..5700a35c 100644
--- a/lib.h
+++ b/lib.h
@@ -243,6 +243,7 @@ extern val null, t, cons_s, str_s, chr_s, num_s, sym_s, pkg_s, fun_s, vec_s;
 extern val stream_s, hash_s, hash_iter_s, lcons_s, lstr_s, cobj_s, cptr_s;
 extern val var_s, expr_s, regex_s, chset_s, set_s, cset_s, wild_s, oneplus_s;
 extern val nongreedy_s, compiled_regex_s;
+extern val quote_s, qquote_s, unquote_s, splice_s;
 extern val zeroplus_s, optional_s, compl_s, compound_s, or_s, and_s, quasi_s;
 extern val skip_s, trailer_s, block_s, next_s, freeform_s, fail_s, accept_s;
 extern val all_s, some_s, none_s, maybe_s, cases_s, collect_s, until_s, coll_s;