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10 lines
No EOL
297 B
Scheme
10 lines
No EOL
297 B
Scheme
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(define (alist-cons key value ls) (cons (cons key value) ls))
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(define (alist-copy ls) (map (lambda (x) (cons (car x) (cdr x))) ls))
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(define (alist-delete key ls . o)
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(let ((eq (if (pair? o) (car o) equal?)))
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(remove (lambda (x) (eq (car x) key)) ls)))
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(define alist-delete! alist-delete) |