vi style editing in JLine3

[user3477071]

As per
#230
inputrc support has been removed from JLine3.

The jshell command that is part of JDK uses JLine3 for line editing.

Is it possible to enable vi style line editing on the jshell command
through a configuration file used by JLine3?

[gnodet]

Note that InputRC support has been somewhat added back in #230 with https://github.com/jline/jline3/blob/jline-parent-3.22.0/builtins/src/main/java/org/jline/builtins/InputRC.java, though it's not called automatically.

Unfortunately, the jshell tool does not seem to allow any external configuration, looking at https://github.com/openjdk/jdk/blob/master/src/jdk.jshell/share/classes/jdk/internal/jshell/tool/ConsoleIOContext.java.

[user3477071]

As per jshell docs at

https://docs.oracle.com/en/java/javase/17/jshell/editing.html

Shell editing in JShell is built on JLine, which is functionally similar to BSD editline and GNU readline in Emacs mode.

If GNU readline in Emacs mode can be supported by JLine notwithstanding the limitation of

Unfortunately, the jshell tool does not seem to allow any external configuration, looking at https://github.com/openjdk/jdk/blob/master/src/jdk.jshell/share/classes/jdk/internal/jshell/tool/ConsoleIOContext.java.

it is not clear why GNU readline in vi mode also be supported in similar fashion.

Can JLine enable GNU readline in vi mode when $HOME/.inputrc is present?