[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: pre-2.1.15 -> 2.1.18 upgrade warning

From: Brendan Strejcek
Subject: Re: pre-2.1.15 -> 2.1.18 upgrade warning
Date: Tue, 31 Jan 2006 10:34:09 -0600
User-agent: Mutt/1.5.6+20040818i

I'm still having issues with the quotation rules for ReturnsZero, though
I did find a workaround. I am trying to embed a command like:

    /bin/sh -c "/usr/bin/python -c \"import asdf\""

But I don't seem to be able to get the backslashes down to the shell. I
would expect this to work, escaping the backslashes, as it does in C:

    ReturnsZero("/bin/sh -c \"${python} -c \\\"import asdf\\\"\"")

But it does not. With an echo on the front, it seems clear that the parser
is not being greedy enough, as the output I get is:

    /usr/local/bin/python -c \

So it is throwing away everything after the underlined section:

    ReturnsZero("/bin/sh -c \"${python} -c \\\"import asdf\\\"\"")

I did find that the following works:

    ReturnsZero("/bin/sh -c \"${python} -c ${quote}import asdf${quote}\"")

So maybe there is a bug with escaping backslashes.

I guess I will add a paragraph to my best practices document saying that
one should avoid complicated escaping. It is hard to read, anyways.


Senior System Administrator
The University of Chicago
Department of Computer Science

reply via email to

[Prev in Thread] Current Thread [Next in Thread]