carpentry/infix
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update for new carp

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Veit Heller
2020-05-05 13:56:22 +02:00
parent fa8991082a
commit 9787870aa7
1 changed files with 3 additions and 3 deletions
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6
infix.carp
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@@ -1,7 +1,7 @@
(defndynamic null? [l] (= (length l) 0))
(defndynamic infix-prec [op]
(if (Dynamic.or (= op '+) (= op '-)) 1
(if (or (= op '+) (= op '-)) 1
(if (= 'pow op) 3
2)))
@@ -19,8 +19,8 @@
(if (list? (car expr))
(infix:parse (cdr expr) operators (cons (infix:parse (car expr)) operands))
(if (symbol? (car expr))
(if (Dynamic.or (null? operators)
(> (infix-prec (car expr)) (infix-prec (car operators))))
(if (or (null? operators)
(> (infix-prec (car expr)) (infix-prec (car operators))))
(infix-parse (cdr expr) (cons (car expr) operators) operands)
(infix-op expr operators operands))
(infix-parse (cdr expr) operators (cons (car expr) operands))))))