Capitalize in Lisp

Welcome to the Capitalize in Lisp page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

;;Taken from the Common Lisp Cookbook Project (strings page)
(defun split-string (string)
    (loop for i = 0 then (1+ j)
          as j = (position #\Space string :start i)
          collect (subseq string i j)
          while j))

(defun join-string (lst)
  (when lst
    (concatenate 'string (car lst) " " (join-string (cdr lst)))))

 (defun capitalize (str)
   (concatenate 'string
     (string-upcase (subseq str 0 1)) (subseq str 1)))

(defparameter input (split-string (cadr *posix-argv*)))
(cond
  ((= (length (car input)) 0) (write-line "Usage: please provide a string"))
  (t (write-line (join-string (cons (capitalize (car input)) (cdr input))))))

Capitalize in Lisp was written by:

• Parker Johansen

If you see anything you'd like to change or update, please consider contributing.

Note: The solution shown above is the current solution in the Sample Programs repository as of Oct 11 2020 10:18:56. The solution was first committed on Oct 09 2020 11:46:14. As a result, documentation below may be outdated.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.