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Re: Client relative url support infrastructure and merge implementation

From: Nathan Kidd <nathan-svn_at_spicycrypto.ca>
Date: 2007-12-18 23:25:29 CET

C. Michael Pilato wrote:
> Branko Čibej wrote:
>> Vincent Lefevre wrote:
>>> On 2007-12-18 15:41:17 +0100, Vincent Lefevre wrote:
>>>
>>>> vin:~> zsh -f
>>>> vin% echo ^ab
>>>> ^ab
>>>> vin% echo +ab
>>>> +ab
>>>> vin% echo =ab
>>>> /usr/sbin/ab
>>>> vin% echo %ab
>>>> %ab
>>>>
>>> BTW, if the extendedglob option is used, '^' also has a special
>>> meaning under zsh. '+' and '%' seem to be safe. And as '%' is
>>> used as a job prefix, it should be safe and remain safe whatever
>>> the options.
>>>
>> Good reasoning. I don't suppose anyone wants a svn client in VMS? then
>> we're safe with %. :)
>
> I may not be following the right discussion, but won't %ab expand as a
> variable on windows? Or must you have both %'s (%ab%)?

For a regular variable both %'s are needed:

C:\>set ab=foo
C:\>echo %ab
%ab

FOR loop variables however seem impossible to escape, so one must be
careful to avoid using a sequence that matches a used variable.

C:\>for %a in (*) do @echo %ab
FOO.TXTb

C:\>for %a in (*) do @echo %%ab
%FOO.TXTb

C:\>for %a in (*) do @echo ^%ab
FOO.TXTb

C:\>for %a in (*) do @echo "%ab"
"FOO.TXTb"

C:\>for %a in (*) do @echo ^%^ab
FOO.TXTb

C:\>for %a in (*) do @echo ^%^%^ab
%FOO.TXTb

C:\>for %a in (*) do @echo ^^%ab
^FOO.TXTb

C:\>for %a in (*) do @echo ^%^^%ab
%^FOO.TXTb

C:\>for %a in (*) do @echo "^%^^%ab"
"^%^^FOO.TXTb"

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Received on Tue Dec 18 23:26:25 2007

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