index(_:offsetBy:limitedBy:)

Other members in extension

Types

• struct UTF16View
• struct UTF8View
• struct UnicodeScalarView

Typealiases

• typealias Index
• typealias SubSequence

Type members

• init()

  Creates an empty substring.

• init(Substring.UnicodeScalarView)

  Creates a Substring having the given content.

• init(Substring.UTF8View)

  Creates a Substring having the given content.

• init(Substring.UTF16View)

  Creates a Substring having the given content.

• init(String)
• init<S>(S)
• init(cString: UnsafePointer<CChar>)
• init<C, Encoding>(decoding: C, as: Encoding.Type)
• init<Encoding>(decodingCString: UnsafePointer<Encoding.CodeUnit>, as: Encoding.Type)
• init(extendedGraphemeClusterLiteral: String)
• init(stringInterpolation: DefaultStringInterpolation)

  Creates a new instance from an interpolated string literal.

• init(stringLiteral: String)
• init(unicodeScalarLiteral: String)
• static func ~= (lhs: Substring, rhs: String) -> Bool

Instance members

• var base: String

  Returns the underlying string from which this substring was derived.

• var customMirror: Mirror
• var debugDescription: String
• var description: String
• var endIndex: Substring.Index
• var isContiguousUTF8: Bool

  Returns whether this string is capable of providing access to validly-encoded UTF-8 contents in contiguous memory in O(1) time.

• var startIndex: Substring.Index
• var unicodeScalars: Substring.UnicodeScalarView
• var utf16: Substring.UTF16View
• var utf8: Substring.UTF8View
• subscript(Substring.Index) -> Character
• subscript(Range<Substring.Index>) -> Substring
• func append<S>(contentsOf: S)
• func distance(from: Substring.Index, to: Substring.Index) -> Int
• func filter((Substring.Element) throws -> Bool) rethrows -> String
• func index(Substring.Index, offsetBy: Int) -> Substring.Index
• func index(after: Substring.Index) -> Substring.Index
• func index(before: Substring.Index) -> Substring.Index
• func lowercased() -> String
• func makeContiguousUTF8()

  If this string is not contiguous, make it so. If this mutates the substring, it will invalidate any pre-existing indices.

• func replaceSubrange(Range<Substring.Index>, with: Substring)
• func replaceSubrange<C>(Range<Substring.Index>, with: C)
• func uppercased() -> String
• func withCString<Result>((UnsafePointer<CChar>) throws -> Result) rethrows -> Result
• func withCString<Result, TargetEncoding>(encodedAs: TargetEncoding.Type, (UnsafePointer<TargetEncoding.CodeUnit>) throws -> Result) rethrows -> Result
• func withUTF8<R>((UnsafeBufferPointer<UInt8>) throws -> R) rethrows -> R

  Runs body over the content of this substring in contiguous memory. If this substring is not contiguous, this will first make it contiguous, which will also speed up subsequent access. If this mutates the substring, it will invalidate any pre-existing indices.

• func write(String)
• func write<Target>(to: inout Target)