* verify ISSN (issn-verify.el)
@ 2020-09-11 3:29 Emanuel Berg via Emacs development discussions.
2020-09-11 4:58 ` 황병희
2020-09-11 6:32 ` Emanuel Berg via Emacs development discussions.
0 siblings, 2 replies; 5+ messages in thread
From: Emanuel Berg via Emacs development discussions. @ 2020-09-11 3:29 UTC (permalink / raw)
To: emacs-devel; +Cc: help-gnu-emacs
;;; issn-verify.el --- verify ISSN -*- lexical-binding: t
;;
;;; Commentary:
;;
;; This Elisp package provides functions to verify
;; ISSN by computing their check digits.
;;
;; Author: Emanuel Berg (incal) <moasenwood@zoho.eu>
;; Created: 2020-09-06
;; Keywords: bib, tex
;; License: GPL3+
;; Package-Requires: ((cl-lib "1.0"))
;; URL: https://dataswamp.org/~incal/emacs-init/issn-verify.el
;; Version: 1.0.0
;;
;; Also see:
;;
;; https://dataswamp.org/~incal/emacs-init/isbn-verify.el
;;
;; To install this package, with this file in
;; a buffer, do:
;;
;; M-x load-file RET RET
;;
;; International Standard Serial Number:
;;
;; ISO 3297, 1975
;;
;; format:
;;
;; The Ring Magazine: ISSN 0035-5410
;; d_1d_2d_3d_4-d_5d_6d_7c
;; d_i for i \in [1, 7] is an integer
;; c, the check digit, is 0..9 or X for 10
;;
;; compute check digit c:
;;
;; c' = 8d_1*7d_2*6d_3*5d_4*4d_5*3d_6*2d_7 mod 11
;;
;; { 0 c' = 0
;; c = {
;; { 11 - c' else
;;
;;; Code:
(require 'cl-lib)
(defun issn--get-digits (issn)
(when (string-match "[[:digit:]]\\{4\\}-[[:digit:]]\\{3\\}[X[:digit:]]" issn)
(let*((hyphen-pos 4)
(issn-lst (string-to-list issn)) )
(mapcar (lambda (c) (if (eq ?X c) "X" (- c ?0)))
(append (cl-subseq issn-lst 0 hyphen-pos)
(cl-subseq issn-lst (1+ hyphen-pos)) )))))
(defun issn-verify-issn (issn)
(let*((issn-lst (issn--get-digits issn))
(c-prop (car (last issn-lst)))
(c-w 0) )
(cl-loop for d in issn-lst
for w downfrom 8 to 2
do (cl-incf c-w (* w d)) )
(let*((c-prime (mod c-w 11))
(c (cond ((= c-prime 0) 0)
(t (- 11 c-prime) )))
(c-x (if (= 10 c) "X" c)) )
(if (equal c-prop c-x)
(message "%s (OK)" c-x)
(message "NOT OK! is %s, should be %s" c-prop c-x) ))))
;; Bicycle Quarterly (issn-verify-issn "1941-8809")
;; Bicycling (issn-verify-issn "1651-9744")
;; Black Belt (issn-verify-issn "0277-3066")
;; Filter (issn-verify-issn "1654-9813")
;; Linux Pro (issn-verify-issn "1471-5678")
;; National Geographic (issn-verify-issn "2535-4124")
;; Outside (issn-verify-issn "0278-1433")
;; The Ring (issn-verify-issn "0035-5410")
;; The Economist (issn-verify-issn "0013-0614") ; NOT OK! is 4, should be 3
(provide 'issn-verify)
;;; issn-verify.el ends here
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: verify ISSN (issn-verify.el)
2020-09-11 3:29 verify ISSN (issn-verify.el) Emanuel Berg via Emacs development discussions.
@ 2020-09-11 4:58 ` 황병희
2020-09-11 5:48 ` Emanuel Berg via Emacs development discussions.
2020-09-11 6:32 ` Emanuel Berg via Emacs development discussions.
1 sibling, 1 reply; 5+ messages in thread
From: 황병희 @ 2020-09-11 4:58 UTC (permalink / raw)
To: emacs-devel
Emanuel Berg via "Emacs development discussions." <emacs-devel@gnu.org>
writes:
> ;;; issn-verify.el --- verify ISSN -*- lexical-binding: t
> ;;
> ;;; Commentary:
> ;;
> ;; This Elisp package provides functions to verify
> ;; ISSN by computing their check digits.
> ;;
> ;; Author: Emanuel Berg (incal) <moasenwood@zoho.eu>
> ;; Created: 2020-09-06
> ;; Keywords: bib, tex
> ;; License: GPL3+
> ;; Package-Requires: ((cl-lib "1.0"))
> ;; URL: https://dataswamp.org/~incal/emacs-init/issn-verify.el
> ;; Version: 1.0.0
> ;;
> ;; Also see:
> ;;
> ;; https://dataswamp.org/~incal/emacs-init/isbn-verify.el
> ;;
> ;; To install this package, with this file in
> ;; a buffer, do:
> ;;
> ;; M-x load-file RET RET
> ;;
> ;; International Standard Serial Number:
> ;;
> ;; ISO 3297, 1975
> ;;
> ;; format:
> ;;
> ;; The Ring Magazine: ISSN 0035-5410
> ;; d_1d_2d_3d_4-d_5d_6d_7c
> ;; d_i for i \in [1, 7] is an integer
> ;; c, the check digit, is 0..9 or X for 10
> ;;
> ;; compute check digit c:
> ;;
> ;; c' = 8d_1*7d_2*6d_3*5d_4*4d_5*3d_6*2d_7 mod 11
> ;;
> ;; { 0 c' = 0
> ;; c = {
> ;; { 11 - c' else
> ;;
> ;;; Code:
>
> (require 'cl-lib)
>
> (defun issn--get-digits (issn)
> (when (string-match "[[:digit:]]\\{4\\}-[[:digit:]]\\{3\\}[X[:digit:]]" issn)
> (let*((hyphen-pos 4)
> (issn-lst (string-to-list issn)) )
> (mapcar (lambda (c) (if (eq ?X c) "X" (- c ?0)))
> (append (cl-subseq issn-lst 0 hyphen-pos)
> (cl-subseq issn-lst (1+ hyphen-pos)) )))))
>
> (defun issn-verify-issn (issn)
> (let*((issn-lst (issn--get-digits issn))
> (c-prop (car (last issn-lst)))
> (c-w 0) )
> (cl-loop for d in issn-lst
> for w downfrom 8 to 2
> do (cl-incf c-w (* w d)) )
> (let*((c-prime (mod c-w 11))
> (c (cond ((= c-prime 0) 0)
> (t (- 11 c-prime) )))
> (c-x (if (= 10 c) "X" c)) )
> (if (equal c-prop c-x)
> (message "%s (OK)" c-x)
> (message "NOT OK! is %s, should be %s" c-prop c-x) ))))
>
> ;; Bicycle Quarterly (issn-verify-issn "1941-8809")
> ;; Bicycling (issn-verify-issn "1651-9744")
> ;; Black Belt (issn-verify-issn "0277-3066")
> ;; Filter (issn-verify-issn "1654-9813")
> ;; Linux Pro (issn-verify-issn "1471-5678")
> ;; National Geographic (issn-verify-issn "2535-4124")
> ;; Outside (issn-verify-issn "0278-1433")
> ;; The Ring (issn-verify-issn "0035-5410")
>
> ;; The Economist (issn-verify-issn "0013-0614") ; NOT OK! is 4, should be 3
>
> (provide 'issn-verify)
> ;;; issn-verify.el ends here
Still i don't know emacs lisp but your codes looks beautiful, wow!!!
Cheer up and thanks Emanuel^^^
Sincerely, Byung-Hee
--
^고맙습니다 _和合團結_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: verify ISSN (issn-verify.el)
2020-09-11 4:58 ` 황병희
@ 2020-09-11 5:48 ` Emanuel Berg via Emacs development discussions.
0 siblings, 0 replies; 5+ messages in thread
From: Emanuel Berg via Emacs development discussions. @ 2020-09-11 5:48 UTC (permalink / raw)
To: emacs-devel
Byung-Hee wrote:
> Still i don't know emacs lisp but your codes looks
> beautiful, wow!!!
... ha! :)
> Cheer up and thanks Emanuel^^^
Well, by all means, thank you :)
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: verify ISSN (issn-verify.el)
2020-09-11 3:29 verify ISSN (issn-verify.el) Emanuel Berg via Emacs development discussions.
2020-09-11 4:58 ` 황병희
@ 2020-09-11 6:32 ` Emanuel Berg via Emacs development discussions.
2020-09-12 4:04 ` Emanuel Berg via Emacs development discussions.
1 sibling, 1 reply; 5+ messages in thread
From: Emanuel Berg via Emacs development discussions. @ 2020-09-11 6:32 UTC (permalink / raw)
To: emacs-devel; +Cc: help-gnu-emacs
See
https://dataswamp.org/~incal/emacs-init/issn-verify.el
for further (very small) changes...
;;; issn-verify.el --- verify ISSN -*- lexical-binding: t
;;
;;; Commentary:
;;
;; This Elisp package provides functions to verify
;; ISSN by computing their check digits.
;;
;; Author: Emanuel Berg (incal) <moasenwood@zoho.eu>
;; Created: 2020-09-06
;; Keywords: bib, tex
;; License: GPL3+
;; Package-Requires: ((cl-lib "1.0"))
;; URL: https://dataswamp.org/~incal/emacs-init/issn-verify.el
;; Version: 1.1.0
;;
;; Also see:
;;
;; https://dataswamp.org/~incal/emacs-init/isbn-verify.el
;;
;; To install this package, with this file in
;; a buffer, do:
;;
;; M-x load-file RET RET
;;
;; International Standard Serial Number:
;;
;; ISO 3297, 1975
;;
;; format:
;;
;; The Ring Magazine: ISSN 0035-5410
;; d_1d_2d_3d_4-d_5d_6d_7c
;; d_i for i \in [1, 7] is an integer
;; c, the check digit, is 0..9 or X for 10
;;
;; compute check digit c:
;;
;; c' = 8d_1*7d_2*6d_3*5d_4*4d_5*3d_6*2d_7 mod 11
;;
;; { 0 c' = 0
;; c = {
;; { 11 - c' else
;;
;;; Code:
(require 'cl-lib)
(defun issn--get-digits (issn)
(if (and (= 9 (length issn))
(zerop (string-match "[[:digit:]]\\{4\\}-[[:digit:]]\\{3\\}[X[:digit:]]" issn)) )
(let*((issn-lst (string-to-list issn))
(dash-pos 4))
(mapcar (lambda (c) (if (eq ?X c) "X" (- c ?0)))
(append (cl-subseq issn-lst 0 dash-pos)
(cl-subseq issn-lst (1+ dash-pos)) )))
(error "Malformed ISSN") ))
(defun issn-verify-issn (issn)
(let*((issn-lst (issn--get-digits issn))
(c-prop (car (last issn-lst)))
(c-w (cl-loop with cwl = 0
for d in issn-lst
for w downfrom 8 to 2
do (cl-incf cwl (* w d))
finally return cwl) )
(c-prime (mod c-w 11))
(c (if (zerop c-prime) 0 (- 11 c-prime) ))
(c-x (if (= 10 c) "X" c)) )
(if (equal c-prop c-x)
(message "%s (OK)" c-x)
(message "NOT OK! is %s, should be %s" c-prop c-x) )))
;; Bicycle Quarterly (issn-verify-issn "1941-8809") ; 9 (OK)
;; Bicycling (issn-verify-issn "1651-9744") ; 4 (OK)
;; Black Belt (issn-verify-issn "0277-3066") ; 6 (OK)
;; Filter (issn-verify-issn "1654-9813") ; 3 (OK)
;; Linux Pro (issn-verify-issn "1471-5679") ; NOT OK! is 9, should be 8
;; National Geographic (issn-verify-issn "2535-41241") ; Malformed ISSN
;; Outside (issn-verify-issn "0278-433") ; Malformed ISSN
;; The Economist (issn-verify-issn "0013-06a4") ; Malformed ISSN
;; The Ring (issn-verify-issn "0035x5410") ; Malformed ISSN
(provide 'issn-verify)
;;; issn-verify.el ends here
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: verify ISSN (issn-verify.el)
2020-09-11 6:32 ` Emanuel Berg via Emacs development discussions.
@ 2020-09-12 4:04 ` Emanuel Berg via Emacs development discussions.
0 siblings, 0 replies; 5+ messages in thread
From: Emanuel Berg via Emacs development discussions. @ 2020-09-12 4:04 UTC (permalink / raw)
To: emacs-devel; +Cc: help-gnu-emacs
;;; issn-verify.el --- verify ISSN -*- lexical-binding: t
;;
;;; Commentary:
;;
;; This Elisp package provides functions to verify
;; ISSN by computing their check digits.
;;
;; Author: Emanuel Berg (incal) <moasenwood@zoho.eu>
;; Created: 2020-09-06
;; Keywords: bib, tex
;; License: GPL3+
;; Package-Requires: ((cl-lib "1.0"))
;; URL: https://dataswamp.org/~incal/emacs-init/issn-verify.el
;; Version: 1.0.0
;;
;; Also see:
;;
;; https://dataswamp.org/~incal/emacs-init/isbn-verify.el
;;
;; To install this package, with this file in
;; a buffer, do:
;;
;; M-x load-file RET RET
;;
;; International Standard Serial Number:
;;
;; ISO 3297, 1975
;;
;; format:
;;
;; The Ring Magazine: ISSN 0035-5410
;; d_1d_2d_3d_4-d_5d_6d_7c
;; d_i for i \in [1, 7] is an integer
;; c, the check digit, is 0..9 or X for 10
;;
;; compute check digit c:
;;
;; c' = 8d_1*7d_2*6d_3*5d_4*4d_5*3d_6*2d_7 mod 11
;;
;; { 0 c' = 0
;; c = {
;; { 11 - c' else
;;
;;; Code:
(require 'cl-lib)
(defun issn--get-digits (issn)
(let ((check-format (string-match "[[:digit:]]\\{4\\}-[[:digit:]]\\{3\\}[X[:digit:]]" issn) ))
(if (and (= 9 (length issn))
check-format
(zerop check-format) )
(let*((no-dash (replace-regexp-in-string "-" "" issn))
(issn-list (string-to-list no-dash))
(c-prop (car (last issn-list)))
(c-prop-x (if (equal "X" c-prop) c-prop (- c-prop ?0)))
(7-1st (butlast issn-list))
(nums (mapcar (lambda (c) (- c ?0)) 7-1st)) )
(append nums `(,c-prop-x)) )
(error "Malformed ISSN") )))
(defun issn-verify (issn)
(let*((issn-lst (issn--get-digits issn))
(c-prop (car (last issn-lst)))
(c-w (cl-loop with cwl = 0
for d in issn-lst
for w downfrom 8 to 2
do (cl-incf cwl (* w d))
finally return cwl) )
(c-prime (mod c-w 11))
(c (if (zerop c-prime) 0 (- 11 c-prime) ))
(c-x (if (= 10 c) "X" c)) )
(if (equal c-prop c-x)
(message "%s (OK)" c-x)
(message "NOT OK! is %s, should be %s" c-prop c-x) )))
;; Bicycle Quarterly (issn-verify "1941-8809") ; 9 (OK)
;; Bicycling (issn-verify "1651-9744") ; 4 (OK)
;; Black Belt (issn-verify "0277-3066") ; 6 (OK)
;; Filter (issn-verify "1654-9813") ; 3 (OK)
;; Linux Pro (issn-verify "1471-5679") ; NOT OK! is 9, should be 8
;; National Geographic (issn-verify "2535-41241") ; Malformed ISSN
;; Outside (issn-verify "0278-433") ; Malformed ISSN
;; The Economist (issn-verify "0013-06a4") ; Malformed ISSN
;; The Ring (issn-verify "0035x5410") ; Malformed ISSN
(provide 'issn-verify)
;;; issn-verify.el ends here
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 5+ messages in thread
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2020-09-11 3:29 verify ISSN (issn-verify.el) Emanuel Berg via Emacs development discussions.
2020-09-11 4:58 ` 황병희
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2020-09-11 6:32 ` Emanuel Berg via Emacs development discussions.
2020-09-12 4:04 ` Emanuel Berg via Emacs development discussions.
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