From: matz@... (Yukihiro Matsumoto)
Date: 2003-04-12T20:50:58+09:00
Subject: Re: The "!" and "?" characters.

Hi,

In message "Re: The "!" and "?" characters."
    on 03/04/12, KONTRA Gergely <kgergely@mlabdial.hit.bme.hu> writes:

|By the way why not allow to define new operators, like in prolog and
|sml?

(a) it would make the parser hard to write, hard to maintain, and
    slow.

(b) it would make syntax vary program to program, which would make
    programs hard to read.

And (b) is also the reason _not_ to have macros in Ruby.

							matz.