On 29/09/16 03:26 PM, Egor Skriptunoff wrote:
IMO, "string.sub(index_from, index_to)" will be more handy if "index_from = 0'
would mean "the index after the last character"
instead of "the index before the first character".
("index_to = 0" should mean "index before the first character", as it is currently implemented in Lua)
The unexpected result of "str:sub(0)" makes programming a bit harder,
as this "feature" is actually a trap, and you are compelled
to use additional "if" to make things right.
But surprisingly, this weird logic can be beneficial in codegolf :-)
Don't you mean to say Lua should add a special-case for -0 and go against the rule of treating 0 and -0 as equal?