RosettaCodeData/Task/Comma-quibbling/FutureBasic/comma-quibbling-2.basic

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local fn CommaQuibbler( s as CFArrayRef ) as CFStringRef
CFStringRef result = NULL
select ( len(s) )
case 0: exit fn = @"{}"
case 1: exit fn = fn StringWithFormat( @"{%@}", s[0] )
case 2: exit fn = fn StringWithFormat( @"{%@ and %@}", s[0], s[1] )
case else
result = fn StringWithFormat( @"{%@}", fn ArrayComponentsJoinedByString( s, @", " ) )
CFRange lastComma = fn StringRangeOfStringWithOptions( result, @",", NSBackwardsSearch )
result = fn StringByReplacingCharactersInRange( result, lastComma, @" and" )
end select
end fn = result
print fn CommaQuibbler( @[] )
print fn CommaQuibbler( @[@"ABC"] )
print fn CommaQuibbler( @[@"ABC", @"DEF"] )
print fn CommaQuibbler( @[@"ABC", @"DEF", @"G", @"H"] )
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