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Re: Multichar tokens

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  Re: Multichar tokens Martin Gregorie <martin@address-in-sig.invalid> - 2016-08-14 00:39 +0000

#35313 — Re: Multichar tokens

On Sat, 13 Aug 2016 22:05:54 +0000, Stefan Ram wrote:

> In Java, »- -2« must be written as »- -2« and not as »--2«,
>   because there also is a special »--« operator. So, when one does want
>   two consecutive unary minus operators, one needs to separate them by
>   white space. This also applies to »+«.
> 
>   There are several other character combinations with special meanings
>   [1].
>
Java syntax isn't all that surprising because ++ and -- are always 
monadic operators while >> and << are dyadic.

Any parser should know the difference between the two and so should not 
get this wrong.

In any case, its quite unusual to see either ++ or -- used inside an 
arithmetic expression. I can't remember ever seeing that construct.


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

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