Latin1 language environment breaks Cygwin shell buffer

[Eric Hanchrow]

In GNU Emacs 21.2.1 (i386-mingw-nt5.0.2195)
 of 2002-03-22 on ALPHA
configured using `configure --with-gcc (2.95)'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

On a Cygwin system (excruciatingly painful details below), type
`runemacs' at the shell, and then evaluate these four forms in order
(adjust the name of the "bash" program as needed for your system):

(set-language-environment "Latin-1")

(setq shell-file-name           "c:/cygwin/bin/bash")
(setq explicit-shell-file-name  "c:/cygwin/bin/bash")

(shell)

You will, not surprisingly, see a "*shell*" buffer appear.  Now switch
to that buffer with C-x o, and hit the Enter key -- you'll see 

        $ 
        : command not found

(You'll also see a lot of cruft from escape sequences in the Bash
prompt; you may ignore those)

Now do (set-language-environment "English"), kill the shell buffer, do
M-x shell, and again hit enter -- this time you won't see the `command
not found' message.

I expected my choice of language environment to have no effect on the
functioning of the shell.

I think that the shell is "seeing" a carriage-return at the end of the
input line, and complaining about it; I think we see nothing before
the colon in the error message because the carriage-return has caused
Emacs to move the cursor to the beginning of the line and erase to the
end of the line.

Here's an experiment that I think confirms my carriage-return theory:

        $ od -c ; echo
        hey you
        buz
        0000000   h   e   y       y   o   u  \r  \n   b   u   z  \r  \n
        0000016
        : command not found

I typed "hey you" and "buz" on separate lines, and the `od' program
indeed "saw" carriage-returns at the ends of those lines.

output of `cygcheck -sv':

Cygwin Win95/NT Configuration Diagnostics
Current System Time: Sat Mar 30 08:16:31 2002

Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 2

Path:   C:\cygwin\usr\local\bin
        C:\cygwin\bin
        C:\cygwin\bin
        c:\WINNT\system32
        c:\WINNT
        c:\WINNT\System32\Wbem
        C:\cygwin\usr\X11R6\bin
        C:\cygwin\usr\games

SysDir: C:\WINNT\System32
WinDir: C:\WINNT

HOME = `C:\cygwin\home\Administrator'
MAKE_MODE = `unix'
PWD = `/usr/local'
USER = `Administrator'

ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
APPDATA = `C:\Documents and Settings\administrator\Application Data'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
COMPUTERNAME = `RUSTY'
COMSPEC = `C:\WINNT\system32\cmd.exe'
CVS_RSH = `ssh'
HOMEDRIVE = `C:'
HOMEPATH = `\'
LOGONSERVER = `\\RUSTY'
MANPATH = `:/usr/ssl/man'
NUMBER_OF_PROCESSORS = `1'
OLDPWD = `/home/Administrator'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 6 Stepping 5, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0605'
PROGRAMFILES = `C:\Program Files'
PROMPT = `$P$G'
PS1 = `\t [\u@\h \W]\$ '
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `c:\DOCUME~1\ADMINI~1\LOCALS~1\Temp'
TERM = `cygwin'
TMP = `c:\DOCUME~1\ADMINI~1\LOCALS~1\Temp'
USERDOMAIN = `RUSTY'
USERNAME = `administrator'
USERPROFILE = `C:\Documents and Settings\administrator'
WINDIR = `C:\WINNT'
_ = `/usr/bin/cygcheck.exe'

Use `-r' to scan registry

c:  hd  NTFS    4104Mb  32% CP CS UN PA FC     
d:  cd           N/A    N/A                    
e:  net NTFS    5793Mb  62% CP CS    PA        offby1

.              /cygdrive  user    binmode,noumount
C:/cygwin      /          system  binmode
C:/cygwin/bin  /usr/bin   system  binmode
C:/cygwin/lib  /usr/lib   system  binmode

Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Not Found: cpp (good!)
Found: C:\cygwin\bin\find.exe
Not Found: gcc
Not Found: gdb
Not Found: ld
Found: C:\cygwin\bin\ls.exe
Not Found: make
Found: C:\cygwin\bin\sh.exe

   56k 2000/12/03 C:\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0
                  "cygbz21.0.dll" v0.0 ts=2000/11/20 15:53
  621k 2002/01/16 C:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
                  "cygcrypto.dll" v0.0 ts=2002/1/16 1:54
   45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
                  "cygform5.dll" v0.0 ts=2001/4/24 22:28
   35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
                  "cygform6.dll" v0.0 ts=2002/1/8 22:03
   19k 2002/02/20 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm.dll" v0.0 ts=2002/2/19 19:05
   17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory4.dll" v0.0 ts=2001/1/6 20:34
   20k 2002/01/13 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory5.dll" v0.0 ts=2002/1/12 17:27
   22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
                  "cygintl-1.dll" v0.0 ts=2001/12/13 1:28
   26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu5.dll" v0.0 ts=2001/4/24 22:27
   20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu6.dll" v0.0 ts=2002/1/8 22:03
  156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses++5.dll" v0.0 ts=2001/4/24 22:29
  175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses++6.dll" v0.0 ts=2002/1/8 22:03
  226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses5.dll" v0.0 ts=2001/4/24 22:17
  202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses6.dll" v0.0 ts=2002/1/8 22:03
   15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel5.dll" v0.0 ts=2001/4/24 22:27
   12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel6.dll" v0.0 ts=2002/1/8 22:03
   40k 2001/11/21 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
                  "cygpcre.dll" v0.0 ts=2001/11/21 14:15
   39k 2001/11/21 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
                  "cygpcreposix.dll" v0.0 ts=2001/11/21 14:15
  108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline4.dll" v0.0 ts=2001/1/6 20:34
  121k 2002/01/13 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline5.dll" v0.0 ts=2002/1/12 17:27
  156k 2002/01/16 C:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
                  "cygssl.dll" v0.0 ts=2002/1/16 1:54
   50k 2002/03/12 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
                  "cygz.dll" v0.0 ts=2002/3/11 20:38
  751k 2002/02/25 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
                  "cygwin1.dll" v0.0 ts=2002/2/25 8:14
    Cygwin DLL version info:
        DLL version: 1.3.10
        DLL epoch: 19
        DLL bad signal mask: 19005
        DLL old termios: 5
        DLL malloc env: 28
        API major: 0
        API minor: 51
        Shared data: 3
        DLL identifier: cygwin1
        Mount registry: 2
        Cygnus registry name: Cygnus Solutions
        Cygwin registry name: Cygwin
        Program options name: Program Options
        Cygwin mount registry name: mounts v2
        Cygdrive flags: cygdrive flags
        Cygdrive prefix: cygdrive prefix
        Cygdrive default prefix: 
        Build date: Mon Feb 25 11:14:34 EST 2002
        Shared id: cygwin1S3


Cygwin Package Information
Last downloaded files to: C:\Documents and Settings\administrator\Desktop
Last downloaded files from: 
ftp://mirrors.rcn.net/mirrors/sources.redhat.com/cygwin

Package             Version             
ash                 20020131-1          
bash                2.05a-3             
bzip2               1.0.1-6             
crypt               1.0-1               
cvs                 1.11.0-1            
cygwin              1.3.10-1            
diff                0.0                 
fileutils           4.1-1               
findutils           4.1                 
gawk                3.0.4-1             
gdbm                1.8.0-4             
grep                2.5g                
gzip                1.3.2-1             
libintl1            0.10.40-1           
libncurses5         5.2-1               
libncurses6         5.2-8               
libreadline4        4.1-2               
libreadline5        4.2a-1              
login               1.4-3               
ncurses             5.2-8               
openssh             3.1p1-1             
openssl             0.9.6c-3            
pcre                3.7-1               
readline            4.2a-1              
sed                 3.02-1              
sh-utils            2.0-2               
tar                 1.13.19-1           
termcap             20010825-1          
terminfo            5.2-1               
textutils           2.0.21-1            
unzip               5.41-1              
which               1.5-1               
zlib                1.1.4-1             

Use -h to see help about each section

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