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Re: relative path from one absolute path to another? [message #49741 is a reply to message #49643]

Wed, 09 August 2006 12:17

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

JD Smith <jdsmith@as.arizona.edu> writes:
> On Wed, 09 Aug 2006 12:52:15 -0400, Craig Markwardt wrote:
>
>>
>> "born.in.sssr@gmail.com" <born.in.sssr@gmail.com> writes:
>>> Hi all,
>>> is there an easy way (without string scripting) to get the relative
>>> path from one absolute path to another (platform independent:
>>> unix+win)?
>>> In the kind of:
>>> rel_path = get_rel_path(from_path, to_path)
>>> Thanks, Maxim
>>
>> Sigh, a simple search on Google ("idl relative path") would have
>> picked up a routine I posted on my website two years ago, and saved
>> everybody a lot of work and trouble :-)
>
> One can't underestimate the trade-off of having to check someone else's
> code vs. writing it yourself for "small" problems like this. 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.

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.

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]

		Re: relative path from one absolute path to another? By: JD Smith on Wed, 09 August 2006 11:02
		Re: relative path from one absolute path to another? By: JD Smith on Wed, 09 August 2006 10:58
		Re: relative path from one absolute path to another? By: Craig Markwardt on Wed, 09 August 2006 09:52
		Re: relative path from one absolute path to another? By: born.in.sssr@gmail.co on Tue, 08 August 2006 14:22
		Re: relative path from one absolute path to another? By: JD Smith on Tue, 08 August 2006 11:39
		Re: relative path from one absolute path to another? By: R.Bauer on Tue, 08 August 2006 08:34
		Re: relative path from one absolute path to another? By: greg michael on Tue, 08 August 2006 07:38
		Re: relative path from one absolute path to another? By: born.in.sssr@gmail.co on Thu, 10 August 2006 01:21
		Re: relative path from one absolute path to another? By: Craig Markwardt on Wed, 09 August 2006 12:17

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