# RegexPattern.Options.init(_:)

- **Module:** RegexPattern.Options
- **Package:** libtmux-swift
- **Language:** Swift
- **Kind:** method
- **Page:** https://libtmux.org/reference/swift/regexpattern-options-init(_-)/

```
RegexPattern.Options.init(_:)(sequence: S)
```

Creates a new set from a finite sequence of items.

Use this initializer to create a new set from an existing sequence, like
an array or a range:

    let validIndices = Set(0..<7).subtracting([2, 4, 5])
    print(validIndices)
    // Prints "[6, 0, 1, 3]"

- Parameter sequence: The elements to use as members of the new set.