Re: [Help-bash] which file in bash source code (tarball) contain a print output function

[Eric Blake]

On 03/20/2012 06:07 PM, Bob Proulx wrote:
> Eric Blake wrote:
>> 'function' is a bashism; I would recommend sticking to the POSIX syntax of:
> 
> Don't you mean ksh'ism?  :-)

I suppose.  But I tend to generically use the term 'bashism' for any
feature of bash not required by POSIX, and therefore not portable to
other POSIX shells like dash.

> 
> It is ksh syntax that bash has as a compatibility extension.

Except that ksh and bash differ on semantics; in ksh, you get different
scoping rules depending on whether you used 'function' or '()' to
declare a function, whereas bash uses dynamic scoping for both forms.
So using 'function' in bash does not always give the same results as
ksh, and thus the term 'bashism' might be apropos to this particular
extension.

-- 
Eric Blake   address@hidden    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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