The Name Game

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The Name Game is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

Write a program that accepts a name as input and outputs the lyrics to the Shirley Ellis song "The Name Game"

The regular verse

Unless your name begins with a vowel (A, E, I, O, U), 'B', 'F' or 'M' you don't have to care about special rules. The verse for the name 'Gary' would be like this:

   Gary, Gary, bo-bary
   Banana-fana fo-fary
   Fee-fi-mo-mary
   Gary! 

At the end of every line, the name gets repeated without the first letter: Gary becomes ary If we take (X) as the full name (Gary) and (Y) as the name without the first letter (ary) the verse would look like this:

   (X), (X), bo-b(Y)
   Banana-fana fo-f(Y)
   Fee-fi-mo-m(Y)
   (X)! 

Vowel as first letter of the name

If you have a vowel as the first letter of your name (e.g. Earl) you do not truncate the name. The verse looks like this:

   Earl, Earl, bo-bearl
   Banana-fana fo-fearl
   Fee-fi-mo-mearl
   Earl! 

'B', 'F' or 'M' as first letter of the name

In case of a 'B', an 'F' or an 'M' (e.g. Billy, Felix, Mary) there is a special rule. The line which would 'rebuild' the name (e.g. bo-billy) is sang without the first letter of the name. The verse for the name Billy looks like this:

   Billy, Billy, bo-illy
   Banana-fana fo-filly
   Fee-fi-mo-milly
   Billy! 

For the name 'Felix', this would be right:

   Felix, Felix, bo-belix
   Banana-fana fo-elix
   Fee-fi-mo-melix
   Felix!

Perl 6

Works with: Rakudo version 2018.03

Meh. The rules leave out some corner cases (see Steve) but what the heck, technically correct is the best kind of correct.

<lang perl6>sub mangle ($name, $initial) {

   my $fl = $name.lc.substr(0,1);
   $fl ~~ /<[aeiou]>/
   ?? $initial~$name.lc
   !! $fl eq $initial
   ?? $name.substr(1)
   !! $initial~$name.substr(1)

}

sub name-game (Str $name) {

   qq:to/NAME-GAME/;
   $name, $name, bo-{ mangle $name, 'b' }
   Banana-fana fo-{ mangle $name, 'f' }
   Fee-fi-mo-{ mangle $name, 'm' }
   $name!
   NAME-GAME

}

say name-game $_ for <Gary Billy Felix Mike Steve></lang>

Output:
Gary, Gary, bo-bary
Banana-fana fo-fary
Fee-fi-mo-mary
Gary!

Billy, Billy, bo-illy
Banana-fana fo-filly
Fee-fi-mo-milly
Billy!

Felix, Felix, bo-belix
Banana-fana fo-elix
Fee-fi-mo-melix
Felix!

Mike, Mike, bo-bike
Banana-fana fo-fike
Fee-fi-mo-ike
Mike!

Steve, Steve, bo-bteve
Banana-fana fo-fteve
Fee-fi-mo-mteve
Steve!