From: Simon Strandgaard <neoneye@...>
Date: 2004-04-30T09:15:11+09:00
Subject: Re: File.expand_path(__FILE__)

Hal Fulton <hal9000@hypermetrics.com> wrote:
> Simon Strandgaard wrote:
> > No bug.
> > 
> > 
> > At the last line "File.expand_path(__FILE__)" is being invoked.
> > Currend dir = "/Users/ryan/tmp/"
> > File name = "tmp/demo-problem.rb"
> > 
> > When these are being concatenated it outputs
> > absolut path = "/Users/ryan/tmp/tmp/demo-problem.rb"
> > 
> > 
> > concat is working ok.
> 
> expand_path doesn't simply concatenate. If it did, we could
> simply do  dir + name.


server> ruby -e 'p File.expand_path("a/b")'
"/tmp/a/b"
server> ls a
ls: a: No such file or directory
server>


 
> Taking a valid relative pathname and returning an invalid
> absolute pathname is not useful, certainly not a feature.
> 
> If not a bug, at least an anomaly.

I think concat are the desired behavier of expand_path.
For instance if you want to create a directory, you first
have to make the path, before you make it. I don't have
better evidence.

--
Simon Strandgaard