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Date: Thu, 29 Dec 2005 21:29:06 -0700
From: Eric Blake <ebb9 AT byu DOT net>
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Subject: [ANNOUNCEMENT] Updated [experimental]: readline-5.1-1, libreadline6-5.1-1
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A new release of readline and libreadline6, 5.1-1, is available for
experimental use.

NEWS:
=====
This is a new upstream release, and includes all official upstream
patches.  It also contains various cygwin-specific patches to speed up
completion within the // file system, and to allow bash to work around
dynamic library limitations.  This build requires features that have been
added to cygwin since cygwin-1.5.18-1, so I am leaving 5.0-4 as the
current version until sometime after cygwin-1.5.19-1 is released and
upstream patches have stabilized.  To use this release, you MUST install a
recent snapshot of cygwin (20051222 or later).  If you don't know what
this means, then stick with 5.0-4.  A list of changes from the NEWS file
appears below; see also /usr/share/doc/readline-5.1/.

This release should be binary compatible with readline 5.0, so existing
applications linked against libreadline6, such as bash-3.0-14, should
continue to work with this release.  Now that this is released, I will be
preparing an experimental bash-3.1 release.

DESCRIPTION:
============
The readline library will read a line from the terminal and return it,
allowing the user to edit the line with emacs or vi editing keys.  It also
allows a history feature, for editing previous entries, making command
line interfaces easier-to-use and more intuitive.

libreadline6 provides the .dlls needed for readline and history expansion
for dynamic linking in other programs, including bash and gdb; it is
required for a minimal cygwin installation.  The 6 in libreadline6
distinguishes incompatible API changes made to the prior libreadline4 and
libreadline5 libraries still available on the mirrors. readline provides
the documentation and the static libraries required for static linking;
you should only need it if you plan on compiling an application that links
with -lreadline or -lhistory.

UPDATE:
=======
Since this is an experimental release, you must first install a recent
cygwin snapshot.  From there, once you click on the "Install Cygwin now"
link on the http://cygwin.com/ web page, you will have to use the "Exp"
radio button in setup.exe.  Look for 'libreadline6' in the 'Base' category
(it should already be selected), or for 'readline' in the 'Devel' category.

DOWNLOAD:
=========
Note that downloads from sources.redhat.com (aka cygwin.com) aren't
allowed due to bandwidth limitations.  This means that you will need to
find a mirror which has this update, please choose the one nearest to you:
http://cygwin.com/mirrors.html

QUESTIONS:
==========
If you want to make a point or ask a question the Cygwin mailing list is
the appropriate place.

- --
Eric Blake
volunteer cygwin readline maintainer

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This is a terse description of the new features added to readline-5.1 since
the release of readline-5.0.

1.  New Features in Readline

a.  The key sequence sent by the keypad `delete' key is now automatically   
    bound to delete-char.

b.  A negative argument to menu-complete now cycles backward through the
    completion list.

c.  A new bindable readline variable:  bind-tty-special-chars.  If non-zero,
    readline will bind the terminal special characters to their readline
    equivalents when it's called (on by default).

d.  New bindable command: vi-rubout.  Saves deleted text for possible  
    reinsertion, as with any vi-mode `text modification' command; `X' is bound
    to this in vi command mode.

e.  If the rl_completion_query_items is set to a value < 0, readline never
    asks the user whether or not to view the possible completions.

f.  New application-callable auxiliary function, rl_variable_value, returns
    a string corresponding to a readline variable's value.

g.  When parsing inputrc files and variable binding commands, the parser
    strips trailing whitespace from values assigned to boolean variables
    before checking them.

h.  A new external application-controllable variable that allows the LINES
    and COLUMNS environment variables to set the window size regardless of
    what the kernel returns.


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