From: Jean-Hugues ROBERT <jean_hugues_robert@...>
Date: 2002-05-09T22:40:23+09:00
Subject: Re: [Q] non-alphabetic character in symbol

At 22:11 09/05/2002 +0900, you wrote:
>At Thu, 9 May 2002 21:53:31 +0900,
>Jean-Hugues ROBERT wrote:
> > > > What about:
> > > >    :+symbol:
> > > >
> > > > Syntax:
> > > >    either :A_WORD[:]
> > > >    or     :WhatEver:
> > >
> > >I guess it's not good for ::WhatEver:, because of parser's
> > >implemetation.
> > >Nobu Nakada
> > Well... :\:Whatever: (and also :\\Whatever: for that matter). Seems
>Also it may change meanings of foo?:Foo:bar, not?
>Nobu Nakada

Yes, that construct could generate an error because foo ? :Foo: bar is
missing a :.

> > to me that this is rather a lexer issue than a parser one (for what
> > its worth).
>Perhaps, but it is mixed in parse.y and would be hard to
>separate for Ruby syntax.

I trust you on that. If the lexer gets help from the parser than it can
probably figure out that the optional [:] of Symbol is actually the : of
the ? ternary expression. Not that I advocate for context dependent
lexical analysis... (though it is cool sometimes).

So... lets forget about :WhatEver:

Yours,

JHR

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