Re: [boost] [filesystem] "leaf"

From: David Abrahams (dave_at_[hidden])
Date: 2008-05-25 01:11:03

on Thu May 22 2008, "Johan Nilsson" <r.johan.nilsson-AT-gmail.com> wrote:

> Vladimir Prus wrote:
>> Frank Mori Hess wrote:
>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>
> [snip]
>
>>
>> Unless you want 'leaf' to be named 'basename'. See, we already have
>> 'basename', which unfortunately does something different.
>
> [sorry for jumping in]
>
> I personally have no problems with leaf, but just for comparison, the 
> following is from Ruby (note that extension can be conditionally removed):
>
>>ri File.basename
> --------------------------------------------------------- File::basename
>      File.basename(file_name [, suffix] ) -> base_name
> ------------------------------------------------------------------------
>      Returns the last component of the filename given in _file_name_,
>      which must be formed using forward slashes (``+/+'') regardless of
>      the separator used on the local file system. If _suffix_ is given
>      and present at the end of _file_name_, it is removed.
>
>         File.basename("/home/gumby/work/ruby.rb")          #=> "ruby.rb"
>         File.basename("/home/gumby/work/ruby.rb", ".rb")   #=> "ruby"

Which exactly mirrors the posix command-line function.  On every POSIX
system

        $ basename foo/bar/baz.x
        baz.x
        $ basename foo/bar/baz.x .cpp
        baz.x
        $ basename foo/bar/baz.x .x
        baz

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com