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pfigue/count_words.erl

Created November 15, 2011 17:58
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Count the number of words of a string in Erlang
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count_words.erl
-module(count_words).
-export([count_words/2]).
count_words([32 | Tail], NumWords) -> count_words(Tail, NumWords);
count_words([Letter | Tail], NumWords) -> 1 + count_words2(Tail, NumWords);
count_words([], NumWords) -> NumWords.
count_words2([32 | Tail], NumWords) -> count_words(Tail, NumWords);
count_words2([Letter | Tail], NumWords) -> count_words2(Tail, NumWords);
count_words2([], NumWords) -> NumWords.
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