Re: Ternary operator patch

[Fabien <fleutot+lua@...>]

On Wed, Sep 15, 2010 at 11:35 AM, David Kastrup <dak@gnu.org> wrote:

Fabien <fleutot+lua@gmail.com> writes:

> "foo(bar)(gnu)(gnat)" is understood differently from "foo(bar)\n(gnu)(gnat)".

Huh?  What makes you think that?  Aren't you confusing "\n" with ";"?\

$ lua

Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio

> x=0

> function f() print ("call #"..x); x=x+1; return f end

> foo, bar, gnu, gnat = f,f,f,f

> foo(bar)(gnu)(gnat)

call #0

call #1

call #2

> ^D

$ lua

Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio

> x=0

> function f() print ("call #"..x); x=x+1; return f end

> foo, bar, gnu, gnat = f,f,f,f

> foo(bar)

call #0

> (gnu)(gnat)

call #1

> ^D

The former is three nested calls; the latter is two calls of depth 1.