diff options
Diffstat (limited to 'examples/calc.lisp')
| -rw-r--r-- | examples/calc.lisp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/examples/calc.lisp b/examples/calc.lisp index 14b03e5..87993e8 100644 --- a/examples/calc.lisp +++ b/examples/calc.lisp @@ -7,11 +7,15 @@ (deflanguage calc (:documentation "A calculator language") (<calc> :-> (:or + (:seq <subexpr> (:eof)) (:seq <value> (:eof)) (:seq <unop> (:eof)) (:seq <binop> (:eof))) :=> car) - (<expr> :-> (:or <value> <unop> <binop>)) + (<expr> :-> (:or <subexpr> <value> <unop> <binop>)) + (<subexpr> :-> (:item) + :?? listp + :=> (argot:parse calc <subexpr> )) (<value> :-> (:item) :?? numberp) (<binop> :-> (:seq (:@ lhs <expr>) (:@ rhs (:+ (:seq (:or= + - / * ^ %) <expr>)))) |