https://github.com/malczak/hashids

Hashids, ported for Swift (http://www.hashids.org)
https://github.com/malczak/hashids

Last synced: about 2 months ago
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Hashids, ported for Swift (http://www.hashids.org)

• Host: GitHub
• URL: https://github.com/malczak/hashids
• Owner: malczak
• License: mit
• Created: 2015-02-20T17:57:59.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2024-07-17T13:53:24.000Z (2 months ago)
• Last Synced: 2024-07-29T00:41:05.852Z (about 2 months ago)
• Language: Swift
• Size: 41 KB
• Stars: 110
• Watchers: 8
• Forks: 35
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
## Hashids.swift

---

A Swift class to generate YouTube-like ids from numbers.

Ported from [Hashids.php](https://github.com/ivanakimov/hashids.php) by [ivanakimov](https://github.com/ivanakimov)

Read documentation at [http://hashids.org/php](http://hashids.org/php)

#### Example Usage

```swift

var hashids = Hashids(salt:"this is my salt");

var hash = hashids.encode(1, 2, 3); // hash:"laHquq"

var values = hashids.decode(hash!); // values:[1,2,3]

```

Example with custom alphabet and minimum hash length

```swift

var hashids = Hashids(salt:"this is my salt", minHashLength:8, alphabet:"abcdefghij1234567890");

var hash = hashids.encode(1, 2, 3); // hash:"514cdi42"

var values = hashids.decode(s!); // values:[1,2,3]

```

Example with UTF8 alphabet

```swift

var hashids = Hashids(salt:"this is my salt", minHashLength:0, alphabet:"▁▂▃▄▅▆▇█");

var hash = hashids.encode(1, 2, 3); // hash:"▅▅▂▄▃▆"

var values = hashids.decode(hash!); // values:[1,2,3]

```

#### Notes

Internally `Hashids` is using integer array rather than strings.

By default `Hashids` class is just a type alias for `Hashids_` and is using unicode scalars for all string manipulations. This makes it possible to use unicode alphabets eq. ':hatched_chick::pig::cat::dog::mouse:'.

Generic version `Hashids_` can be used for both ASCII and UTF alphabets. Based on how characters are interpreted in Swift there are possible 3 scenarios

- `Hashids_` ASCII, uses `String.UTF8View`

- `Hashids_` UTF16, uses `String.UTF16View`

- `Hashids_` Unicode, uses `String.UnicodeScalarView`

##### Swift < 5

For Swift 4.2 version checkout branch [swift-4.2](https://github.com/malczak/hashids/tree/swift-4.2)

For Swift 4.1 version checkout branch [swift-4.1](https://github.com/malczak/hashids/tree/swift-4.1)

For Swift 3.0 version checkout branch [swift-3.0](https://github.com/malczak/hashids/tree/swift-3.0)

For Swift 2.3 (2) version checkout branch [swift-2.3](https://github.com/malczak/hashids/tree/swift-2.3)

#### License

MIT License. See the `LICENSE` file.