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Date: Fri, 02 Jan 2015 15:42:39 -0800
From: Ray Andrews <rayandrews@eastlink.ca>
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Subject: Re: symlink chain.
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On 01/02/2015 02:21 PM, Peter Stephenson wrote:
>
> ... why would the '-a' switch kill the '-s' switch?
> It's nothing to do with "-s", it's the "-a". 

I put that patch in by hand and it sorts out the  -sa issue, alas:

      $ whence -asm "/usr/bin/zsh"
      (nothing)

I'm expecting -m to widen the search where wildcards are present, and to 
leave the search unchanged otherwise, but not to kill -s and/or -a. Is 
it not a general rule that switches are 'cumulative' in nature? IOW each 
switch adds something, (unless its an exclusivity thing like -v -c -w), 
such that we shouldn't have to worry about one switch screwing around 
with what the other switches do?

-a: find all matches on the path
-s: expand symlinks (if any)
-S: expand the full 'chain' of symlinks (if any).
-m: accept wildcards in the search string (if given).

... none of those things contradict each other (tho -S subsumes -s).