Issue1293

Need to fix this behavior when using arrow keys on the console:

Jython 2.5b3+ (trunk:6102:6107M, Mar 22 2009, 14:42:05) 
[Java HotSpot(TM) 64-Bit Server VM (Apple Inc.)] on java1.6.0_07
Type "help", "copyright", "credits" or "license" for more information.
>>> ^[[A^[[A^[[A^[[A^[[A

We need to fix in the RC phase since we now have a decent JLine
available instead of forcing our users to configure their registry.

Changed the registry to default to using JLine. As usual, our
documentation (http://wiki.python.org/jython/ReadlineSetup) is obsolete
here, there's no need to use jline.ConsoleRunner.

We need to track updates to the JLine project, we currently have 0.9.94,
but JRuby is working on an updated version.

In addition, the JRuby startup script has some specific workarounds for
cygwin that we need to apply to our startup script.

so far i had no luck using jython on cygwin (i fear my cygwin setup is not  
correct). nevertheless i'll give it a try.

I should have noted this earlier: pending on the application of similar
logic in bin/jython as used in JRuby for cygwin support:
http://pylonshq.com/pasties/4dd0310c0cc59c336f773a90a3b55024

Should otherwise work on all other platforms.

I'd like to default to jline but I've noticed a few annoying problems 
with it that I'd like to see fixed before we do that:

o disables tab for its completion feature that we don't even use
o doesn't recognize backspace (delete) on my platform (OS X)
o breaks non ascii input

It has a way to disable tab via supplying custom keybindings when you 
initialize it, so we could solve that (it's also supposed to let 
customize bindings in a ~/.jline.keybindings but this is broken)

It actually has code to recognize my delete/backspace key via running 
stty, but this is also broken

I have beginnings of fixes for these issues in the jline code base 
(headius has commit access there), so eventually we'll get this all 
taken care of, but possibly not before 2.5. This shouldn't block the 
release

Attached my hacky workarounds for said issues in the jline codebase

It also breaks the regression test in a few spots:

http://bob.underboss.org:8080/job/jython/743/

This patch does a jarjar of jline, so the end user does not have to deal 
with his classpath

I'm going to work on fixing the stty detection of backspace. Then we'll 
roll out a custom Jython build of jline as Jim suggested

r6326 enables it with my custom build of jline. Attached is the final 
patch against it

I've disabled custom consoles entirely when stdin isn't interactive to 
avoid test failures. This shouldn't be a problem, even if the isatty() 
implementation on your platform is pure java it returns true when stdin 
is System.in

I'll leave this open because the docs on wiki could really use a quick 
update

Changing to normal since docs don't block RC

I guess cygwin could also use some attention

Closing this out, obviously it's been working for a while.