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I use file:// to point to local file.

file://localhost/Users/smcho/Desktop/softwaredevelop/15.pdf

Can't I use file:// to point to the local file relative to current directory? I mean the current directory by where the file containing the file:// is located.

file://./../15.pdf

I need file:// to link a file in Leo. With Leo, I use file:// to link to a local file, and I want to point to files that are located in relative directory to current directory. I asked similar question in Google forum.

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3 Answers 3

I'm not familiar with the Leo outlining software, but if it handles links the same way a web browser does, try the following

../15.pdf
file:../15.pdf

Notes

  • A relative link usually doesn't include the protocol (like http: or https: or file:). When the protocol is omitted, a web browser will use the same protocol as the page the link appears in.

  • An absolute link begins with //. A relative link shouldn't begin with //.

  • The ./ is only needed if you are linking to the folder that contains the page exactly. Otherwise, you can leave it out and start with ../.

    ---- In your thread in the leo-editor group you said file:./../15.pdf caused an error. Maybe the ./../ combination is confusing your software. Perhaps file:../15.pdf will work?

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Thanks for the answer, but both approaches don't seem to work with Leo. –  prosseek Nov 13 '10 at 18:23

Relative to what? URIs by definition are absolute. However you can make your URI relative to a known location, like this:

file://localhost/Users/smcho/Desktop/softwaredevelop/somedir/../15.pdf

Update From what you said it sounds like you are trying to open a PDF from within your application. Typically this is done by just executing the file and letting the OS figure out how to handle it. In Python you would use something like:

os.startfile("../15.pdf")

URIs like file://... are typically used in the context of web-based applications.

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Thanks for the answer. I need to point to a file relative to the current directory (where the file is located). Can file:// do that? –  prosseek Nov 12 '10 at 21:08
1  
The current directory in what context? What application are you using? Is this on some kind of local web page or something? –  heavyd Nov 12 '10 at 21:16
1  
if you are referencing programmatically file:// is NOT the way to do it. –  hbdgaf Nov 12 '10 at 21:26
    
I elaborated the question. The current directory means the directory where Leo file is located. –  prosseek Nov 12 '10 at 21:47

file:// is for absolute paths.

This will be relative to your working directory:

file:./15.pdf

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