Re: Ternary operator patch

[Tony Finch <dot@...>]

On Wed, 15 Sep 2010, mauro iazzi wrote:
>
> Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio
> > function f(x) print('f', x) return f end
> > do
> >> f(1)(f)(3)
> >> end
> f       1
> f       function: 0x12963a0
> f       3
> > do
> >> f(1)
> >> (f)(3)
> stdin:3: ambiguous syntax (function call x new statement) near '('
> >

Note this ambiguity has been resolved in 5.2:

Lua 5.2.0 (work3)  Copyright (C) 1994-2010 Lua.org, PUC-Rio
> do
>> local x = 0
>> local f = function (a) print("call "..x) x = x + 1 return a end
>> f(f)
>> (f)(f)
>> end
call 0
call 1
call 2
>

A function call statement now maximally munches all trailing argument-like
clauses - bracketed expressions, table constructors, and strings - and is
terminated by a keyword, a variable name, or a semicolon. Newlines are now
treated the same as other white space.

Tony.
-- 
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