Re: Testing LUA: verify the correctness of a UTF16 LUA port

[Robert SMITH <robert.smith@...>]

David Given wrote:
> uri cohen wrote:
> > > My question is on how can I verify my port works? Other than toy scripts 
> > > I created, I'm looking for a comprehensive set of tests I can run in 
> > > order to verify all important language feature were not broken...
>
> Unicode is harder than it looks... one reason Lua doesn't really use it 
> is that once you start dealing with Unicode you start finding places 
> where you get conflicting requirements.
>
> For example, ? can be represented as both U+301 U+0065, or as U+00E9. Do 
> these compare equal? They are technically the same thing.
>...

The other question mark above is an é (it got ASCII'd :-). I agree with 
you about the conflicting requirements, indeed more so because whether 
Latin small letter e with acute is the same as the unadorned e plus 
combining acute accent depends on context. In plain French text, I'd say 
yes, but what about in a mathematical text with variables <p>e e&#769; 
e&#779;</p>, i.e. e, e-acute, e-double-accute. In that case I'd say no, 
as maintaining the separation of the base letter and the diacritic would 
probably be important.