GNU bug report logs - #17073
24.3.50; file-symlink-p doesn't return t as described in the doc

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Juanma Barranquero <lekktu <at> gmail.com>
Cc: michael_heerdegen <at> web.de, rgm <at> gnu.org, 17073 <at> debbugs.gnu.org
Subject: bug#17073: 24.3.50; file-symlink-p doesn't return t as described in the doc
Date: Mon, 24 Mar 2014 05:52:31 +0200

> From: Juanma Barranquero <lekktu <at> gmail.com>
> Date: Mon, 24 Mar 2014 01:25:36 +0100
> 
> Perhaps it's me, but I don't find the doc for this function (in the
> elisp reference) particularly clear
> 
>  -- Function: file-symlink-p filename
>      If the file FILENAME is a symbolic link, the `file-symlink-p'
>      function returns the (non-recursive) link target as a string.
> 
> Here it agrees with your interpretation, so at least that is clear.
> 
>      (Determining the file name that the link points to from the target
>      is nontrivial.)  First, this function recursively follows symbolic
>      links at all levels of parent directories.
> 
> IIUC, it's saying (above) that it does not follow symbolic links to
> files recursively. But (below) that it does follow recursively
> symbolic links to directories, until it finds a file (or a symbolic
> link to a file). Is that?

The difference is between the file (a.k.a. "basename") part of the
file name, and the leading directories part.  And yes, it is true.

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