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From: Jacob Sparre Andersen <sparre@nbi.dk>
Newsgroups: comp.lang.ada
Subject: Re: Interpretation of extensions different from Unix/Linux?
Date: Sun, 02 Aug 2009 19:13:18 +0200
Organization: Jacob Sparre Andersen
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Date: 2009-08-02T19:13:18+02:00
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Somebody wrote:

> I noticed that the function Ada.Directories.Base_Name has a different
> opinion about what a file name / extension is than my linux box:
>
> $ cat base_name_test.adb
> with Ada.Text_Io;     use Ada.Text_Io;
> with Ada.Directories; use Ada.Directories;
>
> procedure Base_Name_Test is
> begin
>    Put_Line ("Base_Name: " & Base_Name (".b"));
>    Put_Line ("Extension: " & Extension (".b"));
> end Base_Name_Test;
>
> $ ./base_name_test
> Base_Name:
> Extension: b
>
> $ basename .b
> .b
>
> Is there a reason for this difference?

The specifications are different.

The GNU basename command removes "any leading directory components".
If _specified_, it will "also remove a trailing SUFFIX".

Greetings,

Jacob
-- 
Infinite loop: n., see loop, infinite.
Loop, infinite: n., see infinite loop.