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

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Package: emacs;

Reported by: Dave Abrahams <dave <at> boostpro.com>

Date: Tue, 4 Sep 2012 19:06:01 UTC

Severity: normal

Found in version 24.1

Done: Chong Yidong <cyd <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Glenn Morris <rgm <at> gnu.org>
To: Dave Abrahams <dave <at> boostpro.com>
Cc: 12351 <at> debbugs.gnu.org, Wolfgang Jenkner <wjenkner <at> inode.at>
Subject: bug#12351: 24.1; parse-colon-path turns empty paths into nil
Date: Mon, 31 Dec 2012 02:07:15 -0500

PS parse-colon-path is explicitly documented to return nils:

 -- Function: parse-colon-path path
     This function takes a search path string such as the value of the
     `PATH' environment variable, and splits it at the separators,
     returning a list of directory names.  `nil' in this list means the
     current directory.  Although the function's name says "colon", it
     actually uses the value of `path-separator'.

          (parse-colon-path ":/foo:/bar")
               => (nil "/foo/" "/bar/")

The only use of parse-colon-path in "core" Emacs is in setting cd-path,
which needs the nil, as we have seen.
This bug report was last modified 12 years and 201 days ago.

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