crockford
crockford
This library implements Crockford's base 32 encoding as defined at https://www.crockford.com/base32.html.
Installation
-
Add the dependency to your
shard.yml
:dependencies: crockford: github: davidkellis/crockford
-
Run
shards install
Usage
There are three methods that make up the API:
-
Crockford.encode(number : Int, encoding : Encoding = Crockford::DEFAULT) : String
Takes a non-negative integer and encodes it with Crockford's base-32 encoding. Returns a String representing the encoded value.
-
Crockford.decode(str : String, encoding : Encoding = Crockford::DEFAULT) : UInt64
Decodes the given Crockford base-32 encoded string. Raises ArgumentError if the encoded string value does not represent a valid encoded value. Returns a UInt64 representation of the encoded value.
-
Crockford.decode?(str : String, encoding : Encoding = Crockford::DEFAULT) : UInt64?
Decodes the given Crockford base-32 encoded string. Returns a UInt64 representation of the encoded value if the encoded string represents a valid encoded value; otherwise, returns nil.
require "crockford"
encoded_value = Crockford.encode(123) # encoded_value = "3V"
decoded_value = Crockford.decode(encoded_value) # decoded_value = 123
Crockford.encode(-5) # raises ArgumentError, "Unable to encode negative values."
Crockford.decode("invalid_value") # raises ArgumentError, "Unable to decode ordinal 95."
optional_val = Crockford.decode?("invalid_value") # optional_val = nil
Contributors
- David Ellis - creator and maintainer
crockford
- 0
- 0
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- 1
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- over 2 years ago
- February 23, 2022
MIT License
Thu, 07 Nov 2024 08:12:47 GMT