most things work now?

args.rkt

@@ -32,5 +32,10 @@
          (equal? (vector-member initialize-command args) 0))
        (initialize)]
 
+      [(and
+         (equal? args-length 1)
+         (member (vector-ref args 0) help-command))
+       (d-hash-ref messages 'show-help)]
+
       [else
         (d-hash-ref messages 'show-usage)])))

config.rkt

@@ -6,7 +6,14 @@
 (define program-directory ".rodo/")
 (define program-path "~/")
 (define program-file "todo-list")
+(define path 
+  (expand-user-path
+    (string-append
+      program-path
+      program-directory
+      program-file)))
 (define remove-command "rm")
 (define add-command "add")
 (define list-command "ls")
 (define initialize-command "init")
+(define help-command '("-h" "--help"))

messages.rkt

@@ -6,6 +6,40 @@
 
 (define messages
   (hash
+    'show-help
+    (string-append
+      "* " initialize-command ": "
+      "initialize a file in "
+      program-path
+      program-directory
+      program-file
+      "\n"
+      "\x09Example: "
+      "rodo init\n\n"
+
+      "* " list-command ": "
+      "lists items on the list"
+      "\n"
+      "\x09Example: "
+      "rodo rm 1\n\n"
+
+
+      "* " add-command ": "
+      "adds an item to the list"
+      "\n"
+      "\x09Note: For multi-word items you will need to\n"
+      "\x09surround your item in double quotes as so:\n"
+      "\x09rodo add \"go to the bank\"\n"
+      "\x09Example: "
+      "rodo add bread\n\n"
+      
+      "* " remove-command ": "
+      "removes an item from the list\n"
+      "\x09Note: You may have to run `rodo ls` to see which\n"
+      "\x09number corresponds to which item to remove it.\n"
+      "\x09Example: "
+      "rodo rm 1\n")
+
     'show-usage
     (string-append
       "> For usage type "

util.rkt

@@ -15,6 +15,14 @@
 (define (d-vector-ref args key)
   (display (vector-ref args key)))
 
+(define (quote-item-in-list lst args)
+  (display
+    (string-append 
+      "\"" 
+      (list-ref lst
+                (string->number args)) 
+      "\"")))
+
 (define (make-numbered lst)
   (map
     string-append
@@ -28,13 +36,6 @@
     (string-append ". " lst)))
 
 (define (show-list-from-file)
-  (let
-    ([path
-       (expand-user-path
-         (string-append
-           program-path
-           program-directory
-           program-file))])
   (let
     ([todo-list
        (file->lines path
@@ -44,7 +45,7 @@
       (string-join
         (make-numbered (map (add-spaces) todo-list))
         "\n"
-          #:after-last "\n")))))
+        #:after-last "\n"))))
 
 (define (show-list)
   (if
@@ -56,19 +57,12 @@
       (d-hash-ref messages 'file-not-found)
       (d-hash-ref messages 'try-init))))
 
-(define (add-item-to-file item)
-  (let ([item (string-append item "\n")])
-    (let
-      ([path
-         (expand-user-path
-           (string-append
-             program-path
-             program-directory
-             program-file))])
-      (display-to-file item
+(define (add-item-to-file args)
+  (let ([args (string-append args "\n")])
+    (display-to-file args 
                      path
                      #:mode 'text
-                       #:exists 'append))))
+                     #:exists 'append)))
 
 (define (add-item args)
   (if
@@ -84,16 +78,34 @@
       (d-hash-ref messages 'file-not-found)
       (d-hash-ref messages 'try-init))))
 
+(define (remove-item-from-file args)
+  (let ([todo-list
+          (file->lines path
+                       #:mode 'text
+                       #:line-mode 'linefeed)])
+    (d-hash-ref messages 'item-removed-prefix)
+    (quote-item-in-list todo-list args)
+    (d-hash-ref messages 'item-removed-suffix)
+    (let ([new-list
+            (remove 
+              (list-ref 
+                todo-list 
+                (string->number 
+                  args)) 
+              todo-list)])
+      (display-to-file 
+        (string-append (string-join new-list "\n") "\n")
+        path
+        #:mode 'text
+        #:exists 'replace))))
+
 (define (remove-item args)
   (if
     (and
+      (number? (string->number (vector-ref args 1)))
       (check-for-folder)
       (check-for-file))
-    (begin
-      ;; TODO (remove-item-from-file (vector-ref args 1))
-      (d-hash-ref messages 'item-removed-prefix)
-      (d-vector-ref args 1)
-      (d-hash-ref messages 'item-removed-suffix))
+    (remove-item-from-file (vector-ref args 1))
     (begin
       (d-hash-ref messages 'file-not-found)
       (d-hash-ref messages 'try-init))))