On 6 May 2015 at 13:13, Luiz Henrique de Figueiredo
<lhf@tecgraf.puc-rio.br> wrote:
PS. I still like syntax "hello":sub(1, 4)
I always wondered: is there a reason why this syntax is not supported?
Because to allow it in general would require unbounded lookahead.
Consider for instance:
"x".."x".."x".."x".."x".."x".."x".."x".."x".."x".."x":sub(1, 4)
It would? I would assume that : binds tighter than .., as in:
Lua 5.3.0 Copyright (C) 1994-2015 Lua.org, PUC-Rio
function f(s) return s:upper() end
f "hello" .. "world"
HELLOworld
The current solution with parentheses solves this and is fully general.
It's probaly easy to allow just this syntax <string literal> : <function call>,
but not general enough.
But it is just as general as `f "hello"`, isn't it?
To clarify, I wasn't asking about `:` on arbitrary expressions, only
on string literals.
-- Hisham
