[Cuis-dev] Math symbols and greek letters

[Juan Vuletich]

On 5/21/2020 6:22 AM, Luciano Notarfrancesco via Cuis-dev wrote:
> This change set improves support for some mathematical symbols and 
> letters.
>
> Greek letters and mathematical double struck (blackboard bold) letters 
> can be used just as ordinary letters, they work as variable names or 
> in unary or keyword selectors. Personally, I use greek letters as 
> temporary variables sometimes, and double struck letters as globals 
> for the ring of rational integers, the field of rational numbers, etc.
>
> The change set also includes most of the extra binary operators we had 
> before (I just made some tweaks there).
>
> And I also include a method in SmalltalkEditor that allows entering 
> otherwise untypable characters, following (mostly) LaTeX conventions. 
> For example, in a workspace or a browser you can type '\alpha _ (\Z 
> \oplus \Z) atRandom', and it automatically replaces '\alpha' with the 
> letter alpha and '\Z' with the double struck Z used in mathematics to 
> represent the ring of rational integers, and '\oplus' with the direct 
> sum symbol. If you type '\alpha' nothing happens, then if you type one 
> more character and it is not a letter it recognizes '\alpha' and makes 
> the replacement.
>
> If you want to try the change set, remember to do 'Character 
> initialize' and 'Scanner initialize' after loading it (in that order), 
> and make sure you're using the new TrueType fonts (I'm using DejaVu 
> Sans, others don't seem to include glyphs for all the symbols).

Very nice Luciano! Integrated and @ GitHub.

Cheers,

-- 
Juan Vuletich
www.cuis-smalltalk.org
https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev
https://github.com/jvuletich
https://www.linkedin.com/in/juan-vuletich-75611b3
@JuanVuletich