---
title: "parseOutput(minimumIncompleteLength:maximumLength:parse:)"
framework: network
role: symbol
role_heading: Instance Method
path: "network/nwprotocolframer/instance/parseoutput(minimumincompletelength:maximumlength:parse:)"
---

# parseOutput(minimumIncompleteLength:maximumLength:parse:)

Examines the content of output data while inside your output handler.

## Declaration

```swift
final func parseOutput(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

Return Value Returns true if the requested length was available to parse, or false if the conditions could not be met.

## See Also

### Writing Output

- [writeOutput(data:)](network/nwprotocolframer/instance/writeoutput(data:)-ydvk.md)
- [writeOutputNoCopy(length:)](network/nwprotocolframer/instance/writeoutputnocopy(length:).md)
- [passThroughOutput()](network/nwprotocolframer/instance/passthroughoutput().md)