Reading text (I mean "real" text...)

[Denis]

On Saturday, 20 June 2020 at 01:41:50 UTC, Paul Backus wrote:
> It sounds like maybe what you are looking for is Unicode 
> character categories:
>
> https://en.wikipedia.org/wiki/Unicode_character_property#General_Category

The character validation step could indeed be expressed using 
Unicode properties:

   Allow Unicode White_Space
   Reject Unicode Control
   Allow everything else