Andy's Name Generator

Rules:

• Lowercase characters will be replaced by random characters. A vowel will be replaced by another vowel. A consonant by another consonant.
• Upperchase characters will also replaced by random characters. But each uppercase character will always have the same substitute within the pattern
• If a charater is prefixed with a $ sign, it is used in the result and not replaced

Examples:

• banana - Will create results with the same pattern of vowel/consonants
• bAnAnA - Will create results with the same pattern and the uppercase A will always be replaced by the same character
• $Banan$A - Will create results which always start with a B and end with an A