Re: PATCH: 3.1.5 - sample associative array implementation

[Timothy Writer <Tim.Writer@xxxxxxxxxx>]

"Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxx> writes:

> On Nov 13,  8:55pm, Timothy Writer wrote:
> } Subject: Re: PATCH: 3.1.5 - sample associative array implementation
> }
> } In ksh93, $arrayname is a synonym for ${arrayname[0]}.  This appears to be
> } true for indexed arrays _and_ associative arrays.
> 
> So it actually dereferences a slot with key "0" and substitutes the value
> that is there?  And substitutes nothing if there is no key "0"?  Or ...?

It appears to.

> (In the zsh implementation from my + PWS's patches, with `emulate ksh' in
> effect, $arrayname prints the first hash table element in whatever order
> the hash happens to get traversed, which may change as elements are added.

Perhaps that's why they go to the trouble of dereferencing a slot with key
"0", so its predictable.

> That leads to the question, how do you remove a particular key/value pair
> from a ksh93 associative array?)

"unset foo[bar]" seems to work.

-- 
Tim Writer                                              Tim.Writer@xxxxxxxxxx
FTL Solutions Inc.
Toronto, Ontario, CANADA