Remove vowels from a string: Difference between revisions

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=={{header|Common Lisp}}==
 
<lang Lisp>(defun vowelp (c &key (vowels "aeiou"))
(defun vowelp (c &key (vowels "aeiou"))
(and (characterp c) (find c vowels :test #'char-equal)))
 
(defun remove-vowels (s)
(remove-if #'vowelp s))</lang>
</lang>
 
=={{header|Cowgol}}==