My one cent:
(defn count-vowels
([^String text]
(count-vowels text "aeiouAEIOU"))
([^String text ^String accepted-vowels]
(let [vowel? (set accepted-vowels)]
(->> text
(filter vowel?)
count))))
user=> (count-vowels "Plínio Balduino")
6
user=> (count-vowels "Plínio Balduino" "aeiouAEIOUíÍ")
7
I think this solves the problems for US-ASCII vowels and specific locale
vowels.
Plínio
On Wed, May 21, 2014 at 4:35 AM, Vesa Marttila <[email protected]> wrote:
> On Wednesday, May 21, 2014 2:03:14 AM UTC+3, Brad Kurtz wrote:
>>
>> I saw a rant online about interviewing developers that mentioned
>> candidates not being able to count the number of vowels in a string. So
>> naturally, I decided to see if I could do it in Clojure!
>>
>> I wanted to see others' opinions on other ways of doing it.
>>
>> *https://gist.github.com/bradkurtz/6ce500d0361ccdc08c8e
>> <https://gist.github.com/bradkurtz/6ce500d0361ccdc08c8e>*
>>
>
> Hi,
>
> I ended up with this: https://gist.github.com/ponzao/7399c08bb3b40d349289
>
> (def vowels
> #{\a \e \i \o \u})
>
> (defn count-vowels
> [s]
>
> (count (keep vowels (.toLowerCase s))))
>
> Vesa
>
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