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rewrote everything

main
m455 2019-11-22 13:35:25 -05:00
parent 56397bb866
commit 570ef8d78f
5 changed files with 109 additions and 136 deletions
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18
args.rkt
View File

@ -16,30 +16,30 @@
;; help-command ;; help-command
[(and (equal? args-length 1) [(and (equal? args-length 1)
(member (list-ref args 0) config:help-command)) (member (list-ref args 0) config:help-commands))
(utils:display-hash-ref messages:messages 'show-help)] (utils:display-hash-ref messages:messages 'show-help)]
;; initialize-command ;; initialize-command
[(and (equal? args-length 1) [(and (equal? args-length 1)
(member (list-ref args 0) config:initialize-command)) (member (list-ref args 0) config:initialize-commands))
(init:initialize)] (init:check-initialize-conditions)]
;; add-command ;; add-command
[(and (or (equal? args-length 2) (>= args-length 2)) [(and (or (equal? args-length 2) (>= args-length 2))
(member (list-ref args 0) config:add-command)) (member (list-ref args 0) config:add-commands))
(utils:add-item-to-list config:list-file args)] (utils:check-add-conditions args)]
;; list-command ;; list-command
[(and (equal? args-length 1) [(and (equal? args-length 1)
(member (list-ref args 0) config:list-command)) (member (list-ref args 0) config:list-commands))
(utils:show-list-from-file config:list-file)] (utils:check-list-conditions)]
;; remove-command ;; remove-command
[(and (equal? args-length 2) [(and (equal? args-length 2)
(member (list-ref args 0) config:remove-command) (member (list-ref args 0) config:remove-commands)
(real? (string->number (list-ref args 1))) (real? (string->number (list-ref args 1)))
(or (positive? (string->number (list-ref args 1))) (or (positive? (string->number (list-ref args 1)))
(zero? (string->number (list-ref args 1))))) (zero? (string->number (list-ref args 1)))))
(utils:remove-item-from-list args)] (utils:check-remove-conditions args)]
[else (utils:display-hash-ref messages:messages 'show-usage)]))) [else (utils:display-hash-ref messages:messages 'show-usage)])))

15
config.rkt
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@ -12,28 +12,23 @@
(define list-file (define list-file
(string-append program-directory file-name)) (string-append program-directory file-name))
;; TODO: pluralize this value's name (define help-commands '("-h"
(define help-command '("-h"
"--help" "--help"
"h" "h"
"help")) "help"))
;; TODO: pluralize this value's name (define initialize-commands '("init"
(define initialize-command '("init"
"create" "create"
"start" "start"
"begin")) "begin"))
;; TODO: pluralize this value's name (define add-commands '("add"
(define add-command '("add"
"a")) "a"))
;; TODO: pluralize this value's name (define list-commands '("ls"
(define list-command '("ls"
"list")) "list"))
;; TODO: pluralize this value's name (define remove-commands '("rm"
(define remove-command '("rm"
"remove" "remove"
"del" "del"
"delete")) "delete"))

27
init.rkt
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@ -6,26 +6,27 @@
(provide (all-defined-out)) (provide (all-defined-out))
(define (init-prompt hash-list key) (define (create-initialization-contents)
(utils:display-hash-ref hash-list key)
(display "> ")
(let ([user-input (read-line)])
(cond [(member user-input (hash-ref messages:y/n 'yes))
(begin
(utils:display-hash-ref messages:messages 'creating) (utils:display-hash-ref messages:messages 'creating)
(utils:create-directory-700 config:program-directory) (utils:create-directory-700 config:program-directory)
(utils:create-file-600 config:list-file) (utils:create-file-600 config:list-file)
(if (and (directory-exists? config:program-directory) (if (and (directory-exists? config:program-directory)
(file-exists? config:list-file)) (file-exists? config:list-file))
(utils:display-hash-ref messages:messages 'successfully-created) (utils:display-hash-ref messages:messages 'successfully-created)
(utils:display-hash-ref messages:messages 'creation-error)))] ;; Otherwise
[(member user-input (hash-ref messages:y/n 'no)) (utils:display-hash-ref messages:messages 'creation-error)))
(utils:display-hash-ref messages:messages 'terminating)]
[else
(init-prompt messages:messages 'choose-y/n)])))
(define (initialize) (define (initialize)
(utils:display-hash-ref messages:messages 'init-y/n)
(display "> ")
(let ([user-input (read-line)])
(cond [(member user-input (hash-ref messages:y/n 'yes))
(create-initialization-contents)]
[(member user-input (hash-ref messages:y/n 'no))
(utils:display-hash-ref messages:messages 'terminating)]
[else (utils:display-hash-ref messages:messages 'choose-y/n)])))
(define (check-initialize-conditions)
(if (file-exists? config:list-file) (if (file-exists? config:list-file)
(utils:display-hash-ref messages:messages 'file-already-exists) (utils:display-hash-ref messages:messages 'file-already-exists)
(begin (initialize)))
(init-prompt messages:messages 'init-y/n))))

64
messages.rkt
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@ -4,7 +4,8 @@
(provide (all-defined-out)) (provide (all-defined-out))
(define newline "\n") (define (indent string)
(string-append "\t" string))
(define messages (define messages
(hash (hash
@ -22,80 +23,68 @@
"\n\n" "\n\n"
;; initialize-command ;; initialize-command
(format "~a" (car config:initialize-command)) (format "~a" (car config:initialize-commands))
"\n\n" "\n\n"
"\t" (indent (format "Creates a list in ~a." config:list-file))
(format "Creates a list in ~a." config:list-file)
"\n\n" "\n\n"
;; list-command ;; list-command
(format "~a" (car config:list-command)) (format "~a" (car config:list-commands))
"\n\n" "\n\n"
"\t" (indent "Displays items in your list.")
"Displays items in your list."
"\n\n" "\n\n"
;; add-command ;; add-command
(format "~a" (car config:add-command)) (format "~a" (car config:add-commands))
"\n\n" "\n\n"
"\t" (indent "Adds an item to your list.")
"Adds an item to your list."
"\n\n" "\n\n"
;; remove-command ;; remove-command
(format "~a" (car config:remove-command)) (format "~a" (car config:remove-commands))
"\n\n" "\n\n"
"\t" (indent "Removes an item from your list.")
"Removes an item from your list."
"\n\n" "\n\n"
"Usage examples\n" "Usage examples\n"
"==============" "=============="
"\n\n" "\n\n"
;; initialize-command ;; initialize-command
(format "~a" (car config:initialize-command)) (format "~a" (car config:initialize-commands))
"\n\n" "\n\n"
"\t" (indent (format "~a ~a" config:program-name (car config:initialize-commands)))
(format "~a ~a" config:program-name (car config:initialize-command))
"\n\n" "\n\n"
;; list-command ;; list-command
(format "~a" (car config:list-command)) (format "~a" (car config:list-commands))
"\n\n" "\n\n"
"\t" (indent (format "~a ~a" config:program-name (car config:list-commands)))
(format "~a ~a" config:program-name (car config:list-command))
"\n\n" "\n\n"
;; add-command ;; add-command
(format "~a" (car config:add-command)) (format "~a" (car config:add-commands))
"\n\n" "\n\n"
"\t" (indent (format "~a ~a this is an item without double quotation marks" config:program-name (car config:add-commands)))
(format "~a ~a this is an item without double quotation marks" config:program-name (car config:add-command))
"\n\n" "\n\n"
"\t" (indent (format "~a ~a \"this is an item surrounded by double quotation marks\"" config:program-name (car config:add-commands)))
(format "~a ~a \"this is an item surrounded by double quotation marks\"" config:program-name (car config:add-command))
"\n\n" "\n\n"
"\t" (indent "Note: Grave accents (`) and single quotation marks (\') cannot be used with this command.")
"Note: Grave accents (`) and single quotation marks (\') cannot be used with this command."
"\n\n" "\n\n"
;; remove-command ;; remove-command
(format "~a" (car config:remove-command)) (format "~a" (car config:remove-commands))
"\n\n" "\n\n"
"\t" (indent (format "~a ~a 2" config:program-name (car config:remove-commands)))
(format "~a ~a 2" config:program-name (car config:remove-command))
"\n\n" "\n\n"
"\t" (indent "Note: The example above will remove the third item from your list, because the list starts at zero.")
"Note: The example above will remove the third item from your list, because the list starts at zero."
"\n\n" "\n\n"
"Can't see the whole help message?\n" "Can't see the whole help message?\n"
"=================================" "================================="
"\n\n" "\n\n"
"\t"
(format "Try running \"~a -h | less\" (without the double quotation marks), so you can use the arrow keys to scroll up and down." config:program-name) (format "Try running \"~a -h | less\" (without the double quotation marks), so you can use the arrow keys to scroll up and down." config:program-name)
"\n\n" "\n\n"
"\t"
"When you want to quit, type \"q\" (without the double quotation marks)." "When you want to quit, type \"q\" (without the double quotation marks)."
"\n\n") "\n\n")
@ -120,7 +109,7 @@
config:list-file) config:list-file)
'try-init (format "> Try typing \"~a ~a\" to set it up (without the double quotation marks).\n" 'try-init (format "> Try typing \"~a ~a\" to set it up (without the double quotation marks).\n"
config:program-name (car config:initialize-command)) config:program-name (car config:initialize-commands))
'terminating (format "> Exited ~a.\n" config:program-name) 'terminating (format "> Exited ~a.\n" config:program-name)
@ -128,13 +117,10 @@
'not-in-list "> Error: Item does not exist\n" 'not-in-list "> Error: Item does not exist\n"
'item-added-prefix "> Added " 'item-added "> Added \"~a\" to your list\n"
'item-added-suffix " to list\n" 'item-removed "> Removed \"~a\" from your list\n"))
'item-removed-prefix "> Removed "
'item-removed-suffix " from list\n"))
(define y/n (hash 'yes '("yes" "Yes" "y" "Y") (define y/n (hash 'yes '("yes" "Yes" "y" "Y")
'no '("no" "No" "n" "N"))) 'no '("no" "No" "n" "N")))

87
utils.rkt
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@ -20,6 +20,10 @@
(define (display-hash-ref hash-list key) (define (display-hash-ref hash-list key)
(display (hash-ref hash-list key))) (display (hash-ref hash-list key)))
(define (display-hash-ref-multi hash-list key-list)
(for ([key key-list])
(display (hash-ref hash-list key))))
(define (list->ascending-numbers lst) (define (list->ascending-numbers lst)
(list:range (length lst))) (list:range (length lst)))
@ -41,61 +45,58 @@
(define (surround-with-quotation-marks item) (define (surround-with-quotation-marks item)
(string-append "\"" item "\"")) (string-append "\"" item "\""))
(define (display-item-added item) (define (display-item-added item-to-add)
(display-hash-ref messages:messages 'item-added-prefix) (display (format (hash-ref messages:messages 'item-added) item-to-add)))
(display (surround-with-quotation-marks item))
(display-hash-ref messages:messages 'item-added-suffix))
(define (display-item-removed args) (define (display-item-removed item-to-remove)
(display-hash-ref messages:messages 'item-removed-prefix) (display (format (hash-ref messages:messages 'item-removed) item-to-remove)))
(display (surround-with-quotation-marks args))
(display-hash-ref messages:messages 'item-removed-suffix))
;; TODO: Turn into a check-show-list-conditions and then break (define (check-list-conditions)
;; the rest down into separate functions
(define (show-list-from-file a-file)
(cond (cond
;; If exists and not empty ;; If exists and not empty
[(and (file-exists? config:list-file) [(and (file-exists? config:list-file)
(not (null? (file:file->lines a-file)))) (not (null? (file:file->lines config:list-file))))
(display (file->vertically-numbered-list a-file))] (display (file->vertically-numbered-list config:list-file))]
;; If exists and empty ;; If exists and empty
[(and (file-exists? config:list-file) [(and (file-exists? config:list-file)
(null? (file:file->lines a-file))) (null? (file:file->lines config:list-file)))
(display-hash-ref messages:messages 'empty-list)] (display-hash-ref messages:messages 'empty-list)]
;; If not exist ;; If not exist
[(and (not (file-exists? config:list-file))) [(and (not (file-exists? config:list-file)))
(begin (display-hash-ref-multi messages:messages '(file-not-found try-init))]
(display-hash-ref messages:messages 'file-not-found)
(display-hash-ref messages:messages 'try-init))]
;; Otherwise
[else (display-hash-ref messages:messages 'show-usage)])) [else (display-hash-ref messages:messages 'show-usage)]))
(define (append-item-to-list args lst) (define (append-element-to-end-of-list lst item-to-add)
(append (file:file->lines lst) '(args))) (reverse (cons item-to-add (reverse (file:file->lines lst)))))
;; TODO: Turn into a check-add-conditions and then break (define (add-item-to-list args)
;; the rest down into separate procedures (let* ([item-to-add (string:string-join (cdr args) " ")]
(define (add-item-to-list a-file args) [new-list (append-element-to-end-of-list config:list-file item-to-add)])
(if (and (file-exists? config:list-file)) (file:display-lines-to-file new-list
;; Make this a procedure
(let* ([item (string:string-join (cdr args) " ")]
[new-list (append-item-to-list item config:list-file)])
(file:display-to-file (string:string-join new-list "\n")
config:list-file config:list-file
#:mode 'text #:mode 'text
#:exists 'truncate) #:exists 'truncate)
(display-item-added item)) (display-item-added item-to-add)))
(begin
(display-hash-ref messages:messages 'file-not-found)
(display-hash-ref messages:messages 'try-init))))
;; TODO: Turn into a check-remove-conditions and then break (define (check-add-conditions args)
;; the rest down into separate procedures (if (and (file-exists? config:list-file))
(define (remove-item-from-list args) (add-item-to-list args)
;; Otherwise
(display-hash-ref-multi messages: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)
(display-item-removed item-to-remove)))
(define (check-remove-conditions args)
(cond (cond
;; If directory and file exist, but file is empty ;; If directory and file exist, but file is empty
[(and (directory-exists? config:program-directory) [(and (directory-exists? config:program-directory)
@ -111,21 +112,11 @@
;; Length subtract one because the numbering starts at zero ;; Length subtract one because the numbering starts at zero
[list-length (sub1 (length (file:file->lines config:list-file)))]) [list-length (sub1 (length (file:file->lines config:list-file)))])
(if (not (> user-args list-length)) (if (not (> user-args list-length))
;; Make this a procedure (remove-item-from-list user-args)
(let* ([item-to-remove (list-ref (file:file->lines config:list-file) user-args)] ;; Otherwise
[new-list (remove item-to-remove (file:file->lines config:list-file))])
;; Might be able to just use display-lines-to-file procedure. See docs
(file:display-to-file (string:string-join new-list "\n")
config:list-file
#:mode 'text
#:exists 'truncate)
(display-item-removed item-to-remove))
;; Else
(display-hash-ref messages:messages 'item-not-found)))] (display-hash-ref messages:messages 'item-not-found)))]
;; If directory and file don't exist ;; If directory and file don't exist
[(and (not (directory-exists? config:program-directory)) [(and (not (directory-exists? config:program-directory))
(not (file-exists? config:list-file))) (not (file-exists? config:list-file)))
(begin (display-hash-ref-multi messages:messages '(file-not-found try-init))]))
(display-hash-ref messages:messages 'file-not-found)
(display-hash-ref messages:messages 'try-init))]))