GNU bug report logs - #12351
24.1; parse-colon-path turns empty paths into nil

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From: Dave Abrahams <dave <at> boostpro.com>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: 12351 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>
Subject: bug#12351: 24.1; parse-colon-path turns empty paths into nil
Date: Sun, 30 Dec 2012 22:08:57 -0500

on Sun Dec 30 2012, Andreas Schwab <schwab-AT-linux-m68k.org> wrote:

> Dave Abrahams <dave <at> boostpro.com> writes:
>
>> The following function is buggy because of the original bug:
>>
>> (defun osx-plist-update-exec-path ()
>>   "Update `exec-path' from the PATH environment variable."
>>   (let ((path (getenv "PATH")))
>>     (mapc (lambda (dir)
>>             (add-to-list 'exec-path dir))
>>           (parse-colon-path path)))
>>   exec-path)
>
> In which way is this buggy, apart from the fact that it reverses the
> path (which has nothing to do with the behaviour of parse-colon-path)?

It puts nils in exec-path when PATH contains empty elements.

-- 
Dave Abrahams
BoostPro Computing                  Software Development        Training
http://www.boostpro.com             Clang/LLVM/EDG Compilers  C++  Boost

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