Re: omit parenthesis for functions of zero

[Gavin Wraith <gavin@...>]

<20060228103234.AF7A714170@bazar2.conectiva.com.br>
<376dd1950603012224q1b93bd25r4d785cad73818e5e@mail.gmail.com>
In-Reply-To:
<376dd1950603012224q1b93bd25r4d785cad73818e5e@mail.gmail.com>
X-Organization: Home
User-Agent: Messenger-Pro/1.00c (MsgServe/1.00a) (RISC-OS/5.11) POPstar/2.05
Reply-To: lua@bazar2.conectiva.com.br
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii

In message
<376dd1950603012224q1b93bd25r4d785cad73818e5e@mail.gmail.com>
you wrote:

> On 2/28/06, Gavin Wraith <gavin@wra1th.plus.com> wrote:
> > Permit me to puff RiscLua's brand of mild sugar, requiring
> > only a couple of extra lines in llex.c:
> >
> > RiscLua: \ () => foo + bar end
> >

> i'm interested in seeing your patch. can i take a look at it?
> are there any side effects wrt the rest of the language?
> 
> any thoughts about Gavin's tweak from the rest of the list?

---- diff for llex.c,v 2.19 2006/02/06 18:28:16 roberto

in static int llex (LexState *ls, SemInfo *seminfo) { ...

 Replace, at line 368

--      case '=': {
--        next(ls);
--        if (ls->current != '=') return '=';
--        else { next(ls); return TK_EQ; }
--      }

with

++      case '=': {
++        next(ls);
++        switch(ls->current) {
++         case '=': next(ls); return TK_EQ; break;
++         case '>': next(ls); return TK_RETURN; break;
++         default: return '=';  }
++       }
++      case '\\': {
++        next(ls);
++        return TK_FUNCTION;
++        }
-- 
Gavin Wraith (gavin@wra1th.plus.com)
Home page: http://www.wra1th.plus.com/