# parseInput(minimumIncompleteLength:maximumLength:parse:) Examines the content of input data while in your input handler. ``` final func parseInput(minimumIncompleteLength: Int, maximumLength: Int, parse: (UnsafeMutableRawBufferPointer?, Bool) -> Int) -> Bool ``` ## Parameters `minimumIncompleteLength` The minimum number of bytes that should be delivered to the parse completion. `maximumLength` The maximum number of bytes that should be delivered to the parse completion. `parse` A completion handler that will be called inline to examine a region of bytes. This will contain the buffer that matches the constraints, and a boolean indicating if this buffer represents the end of a message. ## Return Value Returns true if the requested length was available to parse, or false if the conditions could not be met. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)