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changed stuff?

main
m455 2020-01-26 19:56:19 -05:00
parent bc64065d72
commit 948d1ff3f0
1 changed files with 22 additions and 23 deletions
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45
utils.rkt
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@ -19,25 +19,24 @@
(define (display-messages key-list)
(for ([key key-list])
(display (hash-ref messages:messages key))))
(display (hash-ref messages:messages key))))
(define (list->ascending-numbers lst)
(define (list->ascending-numbers-list lst)
(list:range (length lst)))
(define (list->dotted-ascending-numbers lst)
(define (list->dotted-ascending-numbers-list lst)
(map (lambda (x) (string-append x ". "))
(map number->string (list->ascending-numbers lst))))
(map number->string (list->ascending-numbers-list lst))))
(define (list->numbered-list lst)
(map (lambda (x y) (string-append x y))
(list->dotted-ascending-numbers lst)
(list->dotted-ascending-numbers-list lst)
lst))
(define (file->vertically-numbered-list a-file)
(string:string-join
(list->numbered-list (file:file->lines a-file))
"\n"
#:after-last "\n"))
(string:string-join (list->numbered-list (file:file->lines a-file))
"\n"
#:after-last "\n"))
(define (surround-with-quotation-marks item)
(string-append "\"" item "\""))
@ -50,19 +49,20 @@
(define (check-list-conditions)
(cond
;; If exists and not empty
;; If list exists and not empty
[(and (file-exists? config:list-file)
(not (null? (file:file->lines config:list-file))))
(display (file->vertically-numbered-list config:list-file))]
;; If exists and empty
;; If list exists and empty
[(and (file-exists? config:list-file)
(null? (file:file->lines config:list-file)))
(display-messages '(empty-list))]
;; If not exist
[(and (not (file-exists? config:list-file)))
(display-messages '(file-not-found try-init))]
(display-messages '(file-not-found
try-init))]
[else (display-messages '(show-usage))]))
@ -80,17 +80,15 @@
(define (check-add-conditions args)
(if (and (file-exists? config:list-file))
(add-item-to-list args)
;; Otherwise
(display-messages '(file-not-found try-init))))
(add-item-to-list args)
;; Otherwise
(display-messages '(file-not-found
try-init))))
(define (remove-item-from-list user-args)
(let* ([item-to-remove (list-ref (file:file->lines config:list-file) user-args)]
[new-list (remove item-to-remove (file:file->lines config:list-file))])
(file:display-lines-to-file new-list
config:list-file
#:mode 'text
#:exists 'truncate)
(file:display-lines-to-file new-list config:list-file #:mode 'text #:exists 'truncate)
(display-item-removed item-to-remove)))
(define (check-remove-conditions args)
@ -109,11 +107,12 @@
;; Length subtract one because the numbering starts at zero
[list-length (sub1 (length (file:file->lines config:list-file)))])
(if (not (> user-args list-length))
(remove-item-from-list user-args)
;; Otherwise
(display-messages '(item-not-found))))]
(remove-item-from-list user-args)
;; Otherwise
(display-messages '(item-not-found))))]
;; If directory and file don't exist
[(and (not (directory-exists? config:program-directory))
(not (file-exists? config:list-file)))
(display-messages '(file-not-found try-init))]))
(display-messages '(file-not-found
try-init))]))