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Re: FILE_DIRNAME question [message #45604 is a reply to message #45603]

Mon, 19 September 2005 13:08

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Kenneth Bowman writes:

> Can anyone explain what I am doing wrong here?
>
> IDL> print, FILE_DIRNAME(['top', 'middle'], /MARK)
> ./ ./
> IDL> print, FILE_DIRNAME('/top/middle/', /MARK)
> /top/

No, I can't explain it, because I don't understand it.
I mucked around with it for awhile, then wrote my own,
which was more convenient for me, too, because I could
obtain the base filename, the directory name, and the file
extension all at once.

http://www.dfanning.com/programs/fsc_base_filename.pro

It works like this:

filename = '/top/middle/myfile.jpg'
b = FSC_Base_Filename(filename, Directory=d, Extension=)
Print, 'Directory: ', d
Print, 'Filename: ', b
Print, 'Extension: ', e

Or, in an IDL session.

IDL> filename = '/top/middle/myfile.jpg'
IDL> b = FSC_Base_Filename(filename, Directory=d, $
IDL> Extension=e, Path_Sep='/')
IDL> Print, 'Directory: ', d
Directory: /top/middle/
IDL> Print, 'Filename: ', b
Filename: myfile
IDL> Print, 'Extension: ', e
Extension: jpg

Or, as in your example:

IDL> filename = '/top/middle/'
IDL> b = FSC_Base_Filename(filename, Directory=d, $
IDL> Extension=e, Path_Sep='/')
IDL> Print, 'Directory: ', d
Directory: /top/middle/
IDL> Print, 'Filename: ', b
Filename:
IDL> Print, 'Extension: ', e
Extension:

The path separator is returned by PATH_SEP, but if you want to
make separate a UNIX path on a Windows machine, or visa versa,
you can specify what the path separator should be via a keyword.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: FILE_DIRNAME question By: David Fanning on Mon, 19 September 2005 17:21
		Re: FILE_DIRNAME question By: JD Smith on Mon, 19 September 2005 14:24
		Re: FILE_DIRNAME question By: btt on Mon, 19 September 2005 13:38
		Re: FILE_DIRNAME question By: David Fanning on Mon, 19 September 2005 13:08
		Re: FILE_DIRNAME question By: Kenneth P. Bowman on Mon, 19 September 2005 16:44

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