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Message-ID:	<DB1A8F8758DAD311A6B9009027B6C07C1C0231@pff.intersphere.com>
From:	"Millaway, John" <john AT Intersphere DOT com>
To:	cygwin AT sourceware DOT cygnus DOT com
Subject:	1.1.4: Shell escape inconsistency with activestate perl
Date:	Thu, 28 Sep 2000 16:28:31 -0400
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2650.21)

This command,

  perl -e 'print qq($ARGV[0]\n)'  '\n'
 
should print 3 bytes, a literal '\', a literal 'n', and a newline. Under
cygwin bash, it prints the four characters , "\n\n". Under linux and NT
Command-prompt, it correctly prints the 3 characters, and , furthermore, if
this script is placed in a file, it correctly prints the 3 chracters...
which means that the perl interpreter is not broken.

The purpose of the last argument, '\n', is prove that the shell is correctly
ignoring escape sequences. If this is true, then I assume bash is correctly
ignoring escape sequences for ALL arguments, which means the perl
interpreter sees "print qq($ARGV[0]\n)" as it's script. For those of you
that do not know perl, the qq() operator is like "" in bash, i.e., it
interpolates escape sequences and variable names. If this script is placed
in a file, it correctly prints 3 bytes.

This is really odd, because it appears that the escaping is not consistent.
The following is a script which shows the output under cygwin, and under
CMD.EXE. The CMD.EXE output is correct.

$ e:/usr/local/perl/bin/perl.exe -e 'print qq($ARGV[0]\n)' '\n'
\n\n

$ cmd.exe
Microsoft(R) Windows NT(TM)
(C) Copyright 1985-1996 Microsoft Corp.

e:\tmp>e:\usr\local\perl\bin\perl.exe -e "print qq($ARGV[0]\n)" "\n"
\n

$ cygcheck -s -v -r
Cygnus Win95/NT Configuration Diagnostics
Current System Time: Thu Sep 28 15:54:26 2000

WinNT Ver 4.0 build 1381 Service Pack 4

Path:	/usr/local/bin
	/usr/bin
	/bin
	/cygdrive/e/usr/local/perl/bin/
	/cygdrive/c/WINNT/system32
	/cygdrive/c/WINNT
	/cygdrive/e/usr/local/jdk1.3.0/bin
	/cygdrive/e/VAR/MSSQL7/BINN
	/cygdrive/e/var/pcAnywhere
	/cygdrive/e/ApacheGroup/Apache/src/CoreR/

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

HOME = `/cygdrive/e/usr/local/john'
MAKE_MODE = `unix'
PWD = `/tmp'
USER = `john'

!E: = `E:\bin'
BISONLIB = `E:/usr/share/'
COMPUTERNAME = `JOHN'
COMSPEC = `C:\WINNT\system32\cmd.exe'
HOMEDRIVE = `C:'
HOMEPATH = `\'
HOSTNAME = `JOHN'
HOSTTYPE = `i586'
JAVA_HOME = `E:\usr\local\jdk1.3.0'
LOGONSERVER = `\\HELP'
MACHTYPE = `i586-pc-cygwin'
MSINPUT = `C:\Program Files\MSHardware'
NUMBER_OF_PROCESSORS = `1'
OLDPWD = `/'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
OSTYPE = `cygwin'
PATHEXT = `.COM;.EXE;.BAT;.CMD'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 7 Stepping 3, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0703'
PROMPT = `$P$G'
PS1 = `]0;\w
\u@\h \w
$ '
SHELL = `/bin/sh'
SHLVL = `1'
SYSTEM32 = `C:\WINNT\System32'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `/cygdrive/c/TEMP'
TERM = `cygwin'
TOMCAT_HOME = `E:\ApacheGroup\jakarta-tomcat'
USERDOMAIN = `INTERSPHERE'
USERNAME = `john'
USERPROFILE = `C:\WINNT\Profiles\john'
VIM = `E:/usr/local/vim/'
WINDIR = `C:\WINNT'
WINDOWS = `C:\WINNT'
_ = `/bin/cygcheck'
TZ = `EST5EDT4,M4.1.0/2,M10.5.0/2'

HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
  (default) = `/cygdrive'
  cygdrive flags = 0x00000020
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/
  (default) = `E:/'
  flags = 0x00000002
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/mnt/cdrom
  (default) = `f:'
  flags = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/mnt/floppy
  (default) = `a:'
  flags = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
  (default) = `E:/bin'
  flags = 0x00000002
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
  (default) = `E:/lib'
  flags = 0x00000002
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2

a:  fd           N/A    N/A                    
c:  hd  FAT     2047Mb  72% CP    UN           
d:  hd  FAT     2047Mb  40% CP    UN           
e:  hd  FAT     2047Mb  98% CP    UN           
f:  cd  CDFS     583Mb 100%    CS UN           NEW
g:  net NTFS    1553Mb  83% CP CS UN PA FC     SEE
h:  net NTFS   15131Mb  93% CP CS UN PA FC     
j:  net NTFS    4149Mb  26% CP CS UN PA FC     
m:  net NTFS   19641Mb  77% CP CS UN PA FC     STORAGE
q:  net          N/A    N/A                    
r:  net NTFS    2000Mb  94% CP CS UN PA FC     


Found: \bin\bash.exe
Found: \bin\cat.exe
Found: \bin\cpp.exe
Found: \bin\find.exe
Found: \bin\gcc.exe
Found: \bin\gdb.exe
Found: \bin\ld.exe
Found: \bin\ls.exe
Found: \bin\make.exe
Found: \bin\sh.exe

  586k 2000/08/29 C:\WINNT\System32\cygwin1.dll - os=4.0 img=1.0 sys=4.0
                  "cygwin1.dll" v0.0 ts=2000/8/3 20:53
    Cygwin DLL version info:
        dll major: 1001
        dll minor: 4
        dll epoch: 19
        dll bad signal mask: 19005
        dll old termios: 5
        api major: 0
        api minor: 26
        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
        build date: Thu Aug 3 20:53:46 EDT 2000
        CVS tag: cygwin-1-1-4
        shared id: cygwin1S3

   83k 2000/06/11 \bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
                  "cygitcl30.dll" v0.0 ts=2000/6/10 23:34
   35k 2000/06/11 \bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
                  "cygitk30.dll" v0.0 ts=2000/6/10 23:34
  402k 2000/06/11 \bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtcl80.dll" v0.0 ts=2000/6/10 23:30
    5k 2000/06/11 \bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
   10k 2000/06/11 \bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtclreg80.dll" v0.0 ts=2000/6/10 23:30
  639k 2000/06/11 \bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtk80.dll" v0.0 ts=2000/6/10 23:34
  586k 2000/08/04 \bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
                  "cygwin1.dll" v0.0 ts=2000/8/3 20:53
    Cygwin DLL version info:
        dll major: 1001
        dll minor: 4
        dll epoch: 19
        dll bad signal mask: 19005
        dll old termios: 5
        api major: 0
        api minor: 26
        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
        build date: Thu Aug 3 20:53:46 EDT 2000
        CVS tag: cygwin-1-1-4
        shared id: cygwin1S3

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