[ANN] Zippers for Squeak 4.4

> --Hannes
>
>
>
> On 12/27/12, Frank Shearar <[hidden email]> wrote:
>> A zipper is a data structure that lets you efficiently "modify" an
>> immutable data structure. "Modify", because a zipper creates a new,
>> updated, data structure that reuses as much of the original structure.
>> Local modifications and navigations are constant time.
>>
>> This zipper implementation lets you walk over an arbitrary graph
>> structure by leaving the decision of what "up", "down", "left" and
>> "right" means to you, the programmer.
>>
>> (Zippers should also work just fine in Squeak 4.3, Pharo 1.4 and Pharo
>> 2.0.)
>>
>> frank
>>
>>
>
>
>

>> Thank you for providing this, Frank.
>>
>> I assume I can edit a huge XMLDocument I keep in memory with it?
>>
>> An example script?
>>
>> There is still a load problem when loading it through SqueakMap into
>> Squeak4.4-12324
>
> Oh sigh, that was a lame error on my part. I'm having a great deal of
> trouble uploading the corrected install script to SM though.
>
> The correct load script is this:
>
> Installer ss3 install: 'ConfigurationOfZippers'.
> (Smalltalk at: #ConfigurationOfZippers) load
>
> Note the "ss3" - the broken version says "cache". Deleting the file in
> my account's files section makes the file disappear from the list but
> doesn't actually delete anything (because I can still download it). If
> I try upload a new version, it looks like SM doesn't replace the file.

>>> Thank you for providing this, Frank.
>>>
>>> I assume I can edit a huge XMLDocument I keep in memory with it?
>>>
>>> An example script?
>>>
>>> There is still a load problem when loading it through SqueakMap into
>>> Squeak4.4-12324
>>
>> Oh sigh, that was a lame error on my part. I'm having a great deal of
>> trouble uploading the corrected install script to SM though.
>>
>> The correct load script is this:
>>
>> Installer ss3 install: 'ConfigurationOfZippers'.
>> (Smalltalk at: #ConfigurationOfZippers) load
>>
>> Note the "ss3" - the broken version says "cache". Deleting the file in
>> my account's files section makes the file disappear from the list but
>> doesn't actually delete anything (because I can still download it). If
>> I try upload a new version, it looks like SM doesn't replace the file.
>
> Hi Frank, I just verified the current running SM server has the patch
> I applied in 2/2011 which *should* fix this issue.
>
> Did you use the Release Editor browser within the image to submit it
> or the web-site?  The in-image Release Editor browser is the way to
> go.

>>> Did you use the Release Editor browser within the image to submit it
>>> or the web-site?  The in-image Release Editor browser is the way to
>>> go.
>>
>> I used the Release Editor. When Hannes mentioned the problems he had
>> loading it, I (attempted to) manually upload a fixed install script.
>
> If, by "manually upload" you mean you used the web-site, please try
> simply changing the script in the Release Editor browser in the image,
> fill in all the fields, then click "Save" button.  That should work if
> it doesn't please let me know.
>
>