[squeak-dev] [Ann][Cuis] Cuis 2.8 released

Juan Vuletich juan at jvuletich.org
Sat Nov 6 11:25:23 UTC 2010

Levente Uzonyi wrote:
> On Thu, 4 Nov 2010, Juan Vuletich wrote:
>> Hi Folks,
>> Cuis 2.8 is available at www.jvuletich.org/Cuis/Index.html .
>> New in Cuis 2.8:
>> - Fixes to Character sorting and testing methods, to honor 
>> ISO-8859-15 encoding
>> - Better conversion to/from UTF-8
>> - Faster startup (forked DateAndTime class>>startup)
> I checked the changeset and found that you're forking the process at 
> priority 50 (#userInterruptPriority). AFAIK the process running the 
> startup code has priority 40, so the startup process will be suspended 
> while the forked process is running.

Yes. But that forked process is waiting on delays almost all the time, 
and needs to wake up and do its stuff precisely at the start of a new 
second. In Squeak, it runs at priority 40, so this is not guaranteed. I 
suggest doing this change in Squeak too. Besides, I added protection 
from invalid offsets with the OffsetsAreValid class var. In a commercial 
project, I found that with the Squeak implementation, using DateAndTime 
during system startup is not safe.

>> - Honor quit signals from the OS (from Squeak)
>> - #findBinary:do:ifNone: and #findBinaryIndex:do:ifNone: in 
>> SequenceableCollection
> I think #findBinary:ifNone: is useful, because it can be used just like
> #detect:ifNone:.

Right. I did not remove #detect:ifNone: as that would break a lot of 
code. But I believe having the actionBlock in the sender will usually 
save some #ifTrue: to do stuff only when an element was found.

>> - PointerTracingTools by Matthew Fulmer
>> - Many recent tweaks from Squeak
>> - Tweaks to blinking cursors
>> - Tweaks to LayoutSpecs and PluggableMorphs
>> - Tweaks to Editors
> I also checked the MessageTally changeset (0431) and found that 
> MessageTally won't work in Cuis running on Cog, because some VM 
> parameters can be nil. See MessageTally >> #spyEvery:on: and friends.

Cuis change sets are numbered and should considered in order. Latest 
update number is 034, so 431 is quite old. It is actually older than Cog 
public release. That code was modified later, when the issues you 
mention were found in Squeak. You can check that by opening a changes 
list on change set 431 in Cuis. MessageTally works correctly in Cuis on Cog.

> Levente

Thanks for reviewing!

Juan Vuletich

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