Re: [TCLCORE] [Ext] Re: TIP 672 Implementation Complete - Ready for Sponsorship

[Pietro C. <ga...@ga...>]

> On 25 Oct 2025, at 11:07, Jan Nijtmans <jan...@gm...> wrote:
> 
> Op za 25 okt 2025 om 01:34 schreef Phillip Brooks:
>> tags:         trunk, main
>> 
>> comment:      TIP #465: Change Rule 8 of the Dodekalogue to Cut Some Corner Cases (user: jan.nijtmans)
>> 
>> 
>> Jan,  Can you confirm whether the current behavior here is correct for 9.0 - or is it a bug?  If it is correct behavior, then it seems that the $(( expression )) syntax is currently guarded from being recognized as valid syntax at least in this context.
>> 
>> 
>> If it is a bug, can you explain the intent of the change?
> 
> Everything you want to know about it (hopefully) can be found
> here:
>     <https://core.tcl-lang.org/tips/doc/trunk/tip/465.md>
> 
> It - indeed - means that the $(( ... )) syntax is invalid in Tcl 9.0,
> so it can safely be used for "expression substitution".
> 
> I think we should go for this syntax!
>        Jan Nijtmans


Having followed this thread with curiosity but also somewhat disillusioned - given the precedents - I must say I find this a game changer, and something we can't allow ourselves to miss. We have in our hands a backwards compatible *and* nice looking expr shortcut. Wow! I'm all for it!

-- 
Pietro Cerutti
I've pledged to give 10% of income to effective charities and invite you to join me.
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Sent from a small device - please excuse brevity and typos.