phrase = "rosetta code phrase reversal"

// general sequence reversal function
reverse = function(seq)
    out = []
    for i in range(seq.len-1, 0)
        out.push seq[i]
    end for
    if seq isa string then return out.join("")
    return out
end function

// 1. Reverse the characters of the string.
print reverse(phrase)

// 2. Reverse the characters of each individual word in the string, maintaining original word order within the string.
words = phrase.split
for i in words.indexes
    words[i] = reverse(words[i])
end for
print words.join

// 3. Reverse the order of each word of the string, maintaining the order of characters in each word.
print reverse(phrase.split).join