Wrong escaping of backslash symbol - first backslash in sequnce getting swallowed

[iamtakingiteasy]

When you do [ConsoleReader instance].readLine() the following oddity with backslashes exists:

\ - single backslash is simply ignored
\ - two backslashes is represented as single backslash
\\ - three backslashes is represented as two backslashes \
etc

[iamtakingiteasy]

The same thing happens to history items

[iamtakingiteasy]

The problem is located somewhere in .exapndEvents() function; setting consoleReader.setExpandEvents(false) resolves the issue.

The actual place where problem is located:

    if (expandEvents) {
        str = expandEvents(str);
        historyLine = str.replaceAll("\\!", "\\\\!");
    }

of .finishBuffer() function.

[koen-serneels]

We are having the same problem.
Setting expandEvents to "false" does indeed solve it, but, this also disables the use of bash alike "event designators."
For example, entering "!!" re-executes the last command from history. If you turn off expandEvents then "!!" will be interpreted as a command by itself rather then a event designator.
So I think a fix would still be welcome here:)

[gnodet]

The purpose of escaping is to allow characters used in event designators to be used nonetheless.
So I guess any fixes will need to go into the expandEvents() method.
The goal is to have a behavior similar to bash and the gnu readline, so all fixes are welcomed.