base57

A gem for converting numeric values between bases using the following character set:

0123456789abcdefghijkmnopqrstvwxyzABCDEFGHJKLMNPQRSTVWXYZ

• Lower-case "L" (l), capital "I" (I), and the capital letter "O" (O) are excluded to prevent ambiguous values.
• Both capital and lower-case "U" (u and U) are excluded to prevent the most egregious accidental profanity :)

By default, it will convert from base 10 to base 57.

Example

Base57.encode(123_456_789)
# => bFCnz

Base57.encode(123_456_789, to_base: 32)
# => 3moj8m

Base57.encode("3moj8m", from_base: 32, to_base: 57)
# => bFCnz

TODO

• add tests
• better error detecting & handling
• better documentation
• rename gem?