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Contents
defmodule PigLatin do
@doc """
Given a `phrase`, translate it a word at a time to Pig Latin.
Words beginning with consonants should have the consonant moved to the end of
the word, followed by "ay".
Words beginning with vowels (aeiou) should have "ay" added to the end of the
word.
Some groups of letters are treated like consonants, including "ch", "qu",
"squ", "th", "thr", and "sch".
Some groups are treated like vowels, including "yt" and "xr".
"""
@spec translate(phrase :: String.t()) :: String.t()
def translate(phrase) do
phrase
|> String.split(" ")
|> Enum.map_join(" ", &to_pig_latin/1)
end
@consonant_sounds ["ch", "sch", "qu", "squ", "thr", "th"]
@vowel_sounds ["xr", "yt"]
@consonants "bcdfghjklmnpqrstvwxyz" |> String.graphemes
@vowels "aeiou" |> String.graphemes
for sound <- @consonant_sounds do
defp to_pig_latin(unquote(sound) <> rest), do: "#{rest}#{unquote(sound)}ay"
end
for sound <- @vowel_sounds do
defp to_pig_latin(unquote(sound) <> rest), do: "#{unquote(sound)}#{rest}ay"
end
for sound <- @consonants do
defp to_pig_latin(unquote(sound) <> rest), do: "#{rest}#{unquote(sound)}ay"
end
for sound <- @vowels do
defp to_pig_latin(unquote(sound) <> rest), do: "#{unquote(sound)}#{rest}ay"
end
end
Version data entries
110 entries across 110 versions & 1 rubygems