From: "trans.  (T. Onoma)" <transami@...>
Date: 2004-10-09T13:17:56+09:00
Subject: Re: ANN: Free-form-operators patch

On Friday 08 October 2004 11:59 pm, Jim Weirich wrote:
| Now back to the legal operators ...
|
| (A) is legal, e.g.    2<-+1    => false
| (B) is illegal, e.g.  2+/-1    => illegal, however, 2/-1 is legal
| (C) is illegal (but I'm not sure why)
|       ! ~~1 is legal, but !~~1 gives strange results
|       try:   ruby -e '!~~1'  and see for yourself.
| (D) is legal, e.g.    ++1      => 1
|
| Anyways, I'm not sure it will be immediately obvious to the casual
| observer that +/- is a user defined operator and ++ and <+- are
| concatenations of existing legal Ruby built in operators.  (Or that !~~
| looks like a concatentation of built in operators, but for some reason
| is not).

Spaces b/c important, which isn't necessarily a bad thing. A rule that 
operator "on top of operator" requires a space solves problem. So

  '!1' or '! 1' 

is fine, but two in a row must be 

  '! !1' or '! ! 1', not '!!1' 

as '!!' would be considered one operator.

Or did you figure out a better way, Markus?

T.