[Bug 21131] cmd /c echo "&" returns 'Echo is ON', not '"&"'

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=21131





--- Comment #8 from Dan Kegel <dank at kegel.com>  2010-02-18 11:12:23 ---
Probably the behavior we want to match is
running the command on Cygwin in Windows.  So:

$ cmd /c echo '"&"'
"\"
'\""' is not recognized as an internal or external command,
operable program or batch file.

So it looks like native parses "&" as two
commands (each consisting of the single char ")
separated by the command separator &.
And when you escape & using ^, 

$ cmd /c echo '"^&"'
"\"&\""

you get the bizarre quoting that Wine's cmd does.

So the bug here, if any, is that & isn't treated
as a (high-enough precedence, perhaps) command
separator when used on the cmd /c commandline?
That's different enough that someone should
come up with a clean bug report and test case,
and close this one.

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