Mention Spaces when not start of text not working about inputbaraccessoryview

[jameshays]

This is my solution at the moment.

internal extension UITextView {
    
    func find(prefixes: Set<String>, with delimiterSet: CharacterSet) -> (prefix: String, word: String, range: NSRange)? {
        guard prefixes.count > 0
            else { return nil }
        
        return prefixes.compactMap({
            guard let prefix = $0.first else { return nil }
            return find(prefix: prefix, with: delimiterSet)
        }).last
    }
    
    func find(prefix: Character, with delimiterSet: CharacterSet) -> (prefix: String, word: String, range: NSRange)? {
        guard let caretRange = self.caretRange,
            let cursorRange = Range(caretRange, in: text) else { return nil }
        
        var substring = text[..<cursorRange.upperBound]
        guard let prefixIndex = substring.lastIndex(of: prefix) else { return nil }
        
        let wordRange: Range = prefixIndex..<cursorRange.upperBound
        substring = substring[wordRange]
        
        let location = wordRange.lowerBound.encodedOffset
        let length = wordRange.upperBound.encodedOffset - location
        let range = NSRange(location: location, length: length)
        
        return (String(prefix), String(substring), range)
    }
    
    func wordAtCaret(with delimiterSet: CharacterSet) -> (word: String, range: NSRange)? {
        guard let caretRange = self.caretRange,
            let result = text.word(at: caretRange, with: delimiterSet)
            else { return nil }
        
        let location = result.range.lowerBound.encodedOffset
        let range = NSRange(location: location, length: result.range.upperBound.encodedOffset - location)
        
        return (result.word, range)
    }
    
    var caretRange: NSRange? {
        guard let selectedRange = self.selectedTextRange else { return nil }
        return NSRange(
            location: offset(from: beginningOfDocument, to: selectedRange.start),
            length: offset(from: selectedRange.start, to: selectedRange.end)
        )
    }
    
}

After more testing, I may create a PR for it.

[nathantannar4]

@jameshays Thanks for helping out with this! Tbh I was in a crunch when I needed this for a project of mine and will be the first to admit it was not robust enough for all cases, but it worked for what I needed

I would accept PRs

[jameshays]

In the autocomleteManager, I have this as well.

    public func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
        
        // Ensure that the text to be inserted is not using previous attributes
        preserveTypingAttributes()
        
        if let session = currentSession {
            let textToReplace = (textView.text as NSString).substring(with: range)
            let deleteSpaceCount = textToReplace.filter { $0 == .space }.count
            let insertSpaceCount = text.filter { $0 == .space }.count
            let spaceCountDiff = insertSpaceCount - deleteSpaceCount
            session.spaceCounter = spaceCountDiff
        }
...

session.spaceCount = spaceCountDiff. it doesn't seem to always be accurate when deleting spaces and I haven't worked through that yet. It seems to be working for now though. More testing is probably warranted.

[jameshays]

I created a PR here. #50

Give it a go and let me know what you find.

[nathantannar4]

Fixed in 4.2.1