Re: [sdcc-devel] Using libunistring in SDCC?

[Benedikt F. <b.f...@gm...>]

Am 22.10.25 um 20:31 schrieb Philipp Klaus Krause:
> Am 22.10.25 um 20:16 schrieb Benedikt Freisen via sdcc-devel:
>>
>> In this case, I would like to suggest to specify that SDCC requires 
>> that all identifiers are provided in normalization form C. SDCC would 
>> then likely already supports all valid identifiers (and then some) 
>> and we can then use a 3rd party library to generate the diagnostic 
>> messages the standard demands. This library could then even be made 
>> optional.
>
> But if we have the external library for the check for normalization, 
> we could also just normalize, which IMO would be more user-friendly.
>
> How about the following?
>
> * The dependency on the unicode library becomes a configure option 
> (default to on), or it just gets used if found at configure time (like 
> we already do for treedec).
>
> * If the library is not present: check identifier if there are any 
> non-ASCII characters in it. If one is found, emit a warning, stating 
> that SDCC built without the library has incomplete support for 
> non-ASCII identifiers.
>
> * If the library is present: normalize identifiers to normalization 
> form C, and do the full check for XID_Start/XID_Continue.
>
> Philipp
That sounds like a sensible approach.