Undo update of libedit 2016-02-27
Something in libedit appears to be causing breakage in lldb38.
The changes are not generally huge but they are suficient to
to justify reverting for now.
Reported by: novel, bapt
Differences with NetBSD
Reapply our local patches on top of it
Fix Unicode environement detection
Fix reading a line in unicode environment.
It allows /bin/sh to works in UTF-8 envs
Differential Revision: https://reviews.freebsd.org/D1455
Reviewed by: jilles, pfg
Obtained from: NetBSD [1]
MFC after: 1 month
Relnotes: yes
* Quote '*', '?' and '['. While it may be more useful to expand them to
matching pathnames, this at least matches with the completion we do.
* '@' is a regular character for filenames. Some other shells do
@<hostname> completion but we do not.
* Prefix names starting with '-' and '+' with './' so they are not seen as
options.
The completer recognizes characters escaped with backslashes as being
literal parts of a word, and adds backslashes to avoid almost all
misinterpretation. In particular, filenames containing spaces can be
completed correctly.
For bug compatibility with the NetBSD version, the improved completion
function has a new name, _el_fn_sh_complete, and _el_fn_complete is
unchanged.
Submitted by: Guy Yur
The element matches[0] is the common prefix and is not counted in len, so
subtracting 1 is not needed. A counter for the number of matches per line
was incremented twice.
Submitted by: Guy Yur
This will be used to provide filename completion in sh(1).
Changes from the NetBSD code:
* wide character support disabled, as in the rest of libedit
* config.h and related portability stuff reduced/disabled, as in the rest
of libedit
Submitted by: Guy Yur
Obtained from: NetBSD
