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in reply to Re: Five Ways to Reverse a String of Words (C#, Perl 5, Perl 6, Ruby, Haskell)
in thread Five Ways to Reverse a String of Words (C#, Perl 5, Perl 6, Ruby, Haskell)

My awk is very rusty too. Unfortunately, your version emits a trailing space, which violates the spec. I've remedied that below and done it in the form of a function so that it can be more easily compared with the other languages.

# File : revwords.awk # Run with : awk -f revwords.awk </dev/null END { print reverseWords(" one two three four ") } function reverseWords(s) { if ((i = split(s, words)) == 0) return "" sret = words[i] while (--i > 0) sret = sret " " words[i] return sret }

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