On Tue, 24 Jan 2017 17:28:13, Steven Penny wrote:
> On Tue, 24 Jan 2017 16:58:39, Houder wrote:
> > When the omega symbol is entered, followed by a backspace, the input buffer
> > is NOT correctly cleared (or so it appears to me).
> 
> Working fine here. Tested with:

Peculiar ... must be "Henri" problem then :-P

Installed Cygwin afresh ... (Erik, using the official tool! - setup-x86_64.exe)

 - I get the same result (for both the current cygwin1.dll and the modified one)
 - enter alt-234,
   followed by a backspace, followed by a linefeed, results in dash complaining
 - enter alt-234,
   followed by TWO backspaces (which eats part of the prompt), followed by
   a linefeed, leaves dash at peace ...

Regards,

Henri

=====
Test1: ... using a Windows shortcut to start dash with option -l:

$ uname -a
CYGWIN_NT-6.1 Seven 2.6.1(0.305/5/3) 2016-12-16 11:55 x86_64 Cygwin
$ locale
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_ALL=
$ ls -l /bin/cygwin1*
-rwxr-xr-x 1 Henri None 3316345 Dec 16 11:57 /bin/cygwin1.dll
-rwxr-xr-x 1 Henri None 3316345 Dec 16 11:57 /bin/cygwin1-2.6.1-1.X
-rwxr-xr-x 1 Henri None 3318753 Jan 19 20:01 /bin/cygwin1-64-20170119.X
-rwxr-xr-x 1 Henri None 3319106 Jan 25 13:32 /bin/cygwin1-64-20170119-2nd.X
$ cygcheck -sv | awk '$1~/^(dash|cygwin|"cygwin1.dll")$/'
                  "cygwin1.dll" v0.0 ts=2016-12-16 10:55
cygwin               2.6.1-1            OK
dash                 0.5.8-3            OK

# enter alt-234 (omega symbol), followed by a backspace
$
/usr/bin/dash: 5: ▒: not found

# enter alt-234 (omega symbol), followed by TWO backspaces
$

# enter alt-234 (omega symbol), followed by a backspace
$ echo  | od -Ax -tx1z
000000 ce 0a                                            >..<
000002
$

Test2: ... using a Windows shortcut to start dash with option -l:

$ uname -a
CYGWIN_NT-6.1 Seven 2.7.0(0.306/5/3)  x86_64 Cygwin
$ locale
[snip] # same as above ...
$ ls -l /bin/cygwin1*
-rwxr-xr-x 1 Henri None 3319106 Jan 25 13:32 /bin/cygwin1.dll
-rwxr-xr-x 1 Henri None 3316345 Dec 16 11:57 /bin/cygwin1-2.6.1-1.X
-rwxr-xr-x 1 Henri None 3318753 Jan 19 20:01 /bin/cygwin1-64-20170119.X
-rwxr-xr-x 1 Henri None 3319106 Jan 25 13:32 /bin/cygwin1-64-20170119-2nd.X
$ cygcheck -sv | awk '$1~/^(dash|cygwin|"cygwin1.dll")$/'
                  "cygwin1.dll" v0.0 ts=2017-01-19 21:16
cygwin               2.6.1-1            OK
dash                 0.5.8-3            OK

# enter alt-234 (omega symbol), followed by a backspace
$
/usr/bin/dash: 5: ▒: not found

# enter alt-234 (omega symbol), followed by TWO backspaces
$

# enter alt-234 (omega symbol), followed by a backspace
$ echo  | od -Ax -tx1z
000000 ce 0a                                            >..<
000002
$

=====


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