[fpc-devel] ccharset.pas, charset.pas and strings/unicode ? (>< symdif operator)

[Skybuck Flying]

Hello,

As I was busy with the free pascal compiler source codes I came across an 
unfamiliar operator for me: ><

(
It's in nflw.pas at line 830:
       {Symdif operator, in case you are wondering:}
       loopflags:=loopflags >< [lnf_checknegate];
)

First I googled it a bit and came across a language called: Fortress

http://labs.oracle.com/projects/plrg/Publications/fortress0866.pdf

I probably already came across it some time ago...

But this document does show how unicode could be used to introduce new 
operators thanks to new unicode symbols...

Only problem is our keyboards might not yet be suited for it ? ;)

Thought I'd mention it in case you haven't seen it... but I'd bet you 
probably seen it already ;) =D

Concerning the operator... I guess it unifies different sets and leaves out 
the duplicates...

Bye,
  Skybuck.