hash_animal: Adjective-animal hash

In cli: Helpers for Developing Command Line Interfaces

Adjective-animal hash

Description

Adjective-animal hash

Usage

hash_animal(x, n_adj = 2)

hash_raw_animal(x, n_adj = 2)

hash_obj_animal(x, n_adj = 2, serialize_version = 2)

Arguments

x	Character vector. NA entries will have an NA hash.
n_adj	Number of adjectives to use. It must be from 0 through 3.
serialize_version	Workspace format version to use, see base::serialize().

Details

It uses the first 13 hexadecimal characters (out of the 32) of the MD5 hash of the input, and converts them into an adjective-animal form to create a human readable hash.

Number of possible hash values

hash_animal() uses 1748 animal names and 8946 different adjectives. The number of different hashes you can get for different values of n_adj:

n_adj	size of the hash table space
0	1,748
1	15,637,608
2	139,894,041,168
3	1,251,492,092,288,928

Source

The list of adjectives and animals comes from the ids package, and in turn from https://github.com/a-type/adjective-adjective-animal, and from ⁠https://gfycat.com⁠ (now gone).

hash_raw_animal() calculates the adjective-animal hash of the bytes of a raw vector.

hash_obj_animal() calculates the adjective-animal hash of an R object. The object is serialized into a binary vector first.

Value

A data frame with columns

• hash: the hash value, a string.

• words: list column with the adjectives and the animal name in a character vector.

hash_raw_animal() and hash_obj_animal() return a list with entries:

• hash: the hash value, a string,

• 'words: the adjectives and the animal name in a character vector.

See Also

the ids package for generating random adjective-animal ids

Other hash functions: hash_emoji(), hash_md5(), hash_sha1(), hash_sha256()

Examples

hash_animal(c("foo", "bar"))

# if you increase `n_adj`, the shorter hash is a suffix of the longer:
hash_animal("cli package", 0)$hash
hash_animal("cli package", 1)$hash
hash_animal("cli package", 2)$hash
hash_animal("cli package", 3)$hash

cli documentation built on June 22, 2024, 10:57 a.m.