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javasocketschatinputstreamtelnet

How to fix backspaces sent via Telnet to Inputstream in Java?

On my Java Chatserver users can change their username by using backspaces infront of their message.

I am currently coding a chat-server and client in Java. It works really well but I have the annoying 'bug', that the users can send messages without their username by using backspaces infront of their messages because telnet or the used BufferedReader-InputStream is saving backspaces in the message-string.

I tried to replace backspaces which made it impossible for users to change spelling mistakes.

I don't know what I should try next.

Example: Test>[10 backspaces]This is a test. The others are getting the message This is a test. but the actual message should be Test:This is a test.

Solution

  • This line of code fixed my issue partly:

    while (input.contains("\b")) input = input.replaceAll("^\b+|[^\b]\b", "");