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Range extraction: Difference between revisions
Emacs Lisp: Improve formatting
(Added solution for Action!) |
(Emacs Lisp: Improve formatting) |
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=={{header|Emacs Lisp}}==
{{libheader|Gnus}}
<lang Lisp>(require 'gnus-range)
(defun rangext (lst)
(mapconcat (lambda (item)
(if (consp item)
(if (= (+ 1 (car item)
(format "%d,%d" (car item) (cdr item)
(format "%d-%d" (car item) (cdr item)
(format "%d" item)))
(gnus-compress-sequence lst)
","))
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;; => "0-2,4,6-8,11,12,14-25,27-33,35-39"</lang>▼
Vanilla:
<lang Lisp>(setq max-lisp-eval-depth 10000)▼
▲0-2,4,6-8,11,12,14-25,27-33,35-39
▲(setq max-lisp-eval-depth 10000)
(defun ab (a ls)
(if ls (if (= (+ a 1) (car ls)
(abc a (car ls) (cdr ls)
(format "%d,%s" a (ab (car ls) (cdr ls)
(format "%d" a)
(defun abc (a b ls)
(if ls (if (= (+ b 1) (car ls)
(abcd a (car ls) (cdr ls)
(format "%d,%d,%s" a b (ab (car ls) (cdr ls)
(format "%d,%d" a b)
(defun abcd (a c ls)
(if ls (if (= (+ c 1) (car ls)
(abcd a (car ls) (cdr ls)
(format "%d-%d,%s" a c (ab (car ls) (cdr ls)
(format "%d-%d" a c)
(defun rangext (ls)
(if ls (ab (car ls) (cdr ls)
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;; => "0-2,4,6-8,11,12,14-25,27-33,35-39"</lang>▼
▲0-2,4,6-8,11,12,14-25,27-33,35-39
=={{header|Erlang}}==
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