Odd operators

Joel C. Salomon JoelCSalomon at Gmail.com
Wed Jan 31 21:38:33 PST 2007


Jarrett Billingsley wrote:
> "Joel C. Salomon" <JoelCSalomon at Gmail.com> wrote in message 
> news:eprrth$2qfp$1 at digitaldaemon.com...
>> There are a couple of operators mentioned on 
>> <http://www.digitalmars.com/d/lex.html> that I haven't seen described in 
>> the documentation: '===', '!~', and '~~'.  Any pointers on what they are?
>>
>> --Joel
> 
> === is an ancient version of 'is' (and !== is what '!is' used to be).  They 
> were removed quite some time ago.
> 
> ~~ and !~ were for regular expression matching.  They lasted one release 
> before they were removed. 

Thanks.

I’m building a lexer for a C compiler (for a Compiler Theory class I’m 
taking) and I hoped I could make it more-or-less D-compatible, but ~~ 
and !~ could break C code; glad to know I can leave them out.

--Joel



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