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Re: relative path from one absolute path to another? [message #49709 is a reply to message #49680]

Fri, 11 August 2006 01:14

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

JD Smith <jdsmith@as.arizona.edu> writes:
> On Wed, 09 Aug 2006 15:17:15 -0400, Craig Markwardt wrote:
>> JD Smith <jdsmith@as.arizona.edu> writes:
>>> Does it work for Windows paths (with c:\foo or \\host\foo)?
>>
>> Sure. Of course, if the drive letter is different, there is no
>> possible relative path.
>
> So you explicitly test for and separate out the drive letter and then
> prepend it later? I didn't see where you do this (and I don't have any
> Windows IDL at hand to test these things).

No explicit test was needed. :-)

>
>> Regarding links and FILE_SAME(), I didn't assume the directories
>> actually exist on disk. In my case, sometimes the relative path is
>> devised before the tree exists, so that assumption would have failed.
>
> It's not a problem, because FILE_SAME returns true if the two files are
> lexically identical, even if they don't exist, so you get the best of both
> worlds.

Huh! OK.

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		relative path from one absolute path to another? By: born.in.sssr@gmail.co on Tue, 08 August 2006 07:18
		Re: relative path from one absolute path to another? By: Craig Markwardt on Fri, 11 August 2006 01:14
		Re: relative path from one absolute path to another? By: JD Smith on Thu, 10 August 2006 15:33

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