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Re: 'official function declaration format' doesn't work if alias defined


From: Chet Ramey
Subject: Re: 'official function declaration format' doesn't work if alias defined
Date: Mon, 11 Jan 2016 10:11:06 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.5.0

On 1/9/16 2:21 PM, Eric Cook wrote:
> In mksh, ksh93, zsh and maybe others, you can use quotes to suppress alias 
> expansions during definition just like you would a simple command; 
> unfortunately bash deems it a invalid identifier.

This is how Posix specifies it, and how the `base implementations' (ksh-88
and the SVR4 sh) behaved.  The function name has to be an identifier, and
at this point in the lexical analysis, the quotes have not been removed.

The ksh93/mksh/zsh quote removal behavior appears to be undocumented.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/



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