Code Golf: Pig Latin

Question

Challenge:

Take a sentence of input of any length and convert all the words in that sentence to pig latin. If you do not know what pig latin is please read Wikipedia: Pig Latin.

Specifications:

1. Assume all words are separated by spaces and all sentences either end with a exclamation, question mark or period.

2. Do not use the variant for vowels mentioned in Wikipedia.

3. For words such as bread and quiz it is perfectly acceptable for them to be readbay, uizqay instead of and eadbray and izquay.

4. Functions or methods are perfectly acceptable. In other words you do not need to take in user input, but you must display user output.

5. Assume no input contains a compound word.

Example:

Input: I am a happy man.
Output: Iway amway away appyhay anmay.

How to win:

The winner is the person who can write a program that will do the challenge with the least amount of characters.

Answer 1

sed - 53/55 45/47 chars

With the -r option (2+43):

s/\b[aeiou]\w*/w&/gi;s/\b(\w)(\w*)/\2\1ay/g

Without the -r option (47):

s/\b[aeiou]\w*/w&/gi;s/\b\(\w\)\(\w*\)/\2\1ay/g

Answer 2

C# 257 96 characters

Readable Version:

string.Join(" ",
    args.Select(y =>
        ("aeiouAEIOU".Contains(y[0])
        ? y + "way"
        : y.Substring(1) + y[0] + "ay")
    )
);

Condensed

string.Join(" ",args.Select(y=>("aeiouAEIOU".Contains(y[0])?y+"way":y.Substring(1)+y[0]+"ay")));

Input:

LINQ helps me write good golf answers

Output:

INQLay elpshay emay riteway oodgay olfgay answersway