Re: 'table' as fallback for tables
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- Subject: Re: 'table' as fallback for tables
- From: "Soni L." <fakedme@...>
- Date: 2016年6月25日 21:08:12 -0300
On 25/06/16 08:17 PM, Tim Hill wrote:
On Jun 25, 2016, at 3:15 PM, Philipp Janda <siffiejoe@gmx.net
<mailto:siffiejoe@gmx.net>> wrote:
Ignoring syntax and compatibility issues for a moment, what would
you have
if a table had an explicit, unambiguous, first-class array length?
— No confusion over the meaning/behavior of ipairs().
What about `ipairs()` is confusing? It's just like with C strings:
the first `NUL`/`nil` terminates the thing. Normal Lua tables on the
other hand are like Pascal strings that only remember their
capacities, not their sizes, so you have to find the (or a)
terminating `nil` anyway.
It’s confusing when # does one thing and ipairs() does another. If you
recall the debate over changes to ipairs() prior to Lua 5.3 (and the
changes it underwent during the betas) than yes, I think it can be
called confusing. Remember that as a scripting language Lua often has
programmers who have far less software knowledge than a seasoned C/C++
veteran, and so the language really needs to be as consistent as
possible (imho).
Next up, we should try to get smart quote support, so users can edit
scripts in notepad.exe and the mac/OSX/whatever it's called nowadays
text editor without them breaking. /s
And you only have to look at the number of times the whole issue with
sequences/#/nil comes up in this mailing list.
—Tim
--
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- References:
- Re: 'table' as fallback for tables, Philipp Janda
- Re: 'table' as fallback for tables, Roberto Ierusalimschy
- Re: 'table' as fallback for tables, Soni L.
- Re: 'table' as fallback for tables, Roberto Ierusalimschy
- Re: 'table' as fallback for tables, Soni L.
- Re: 'table' as fallback for tables, Dirk Laurie
- Re: 'table' as fallback for tables, Soni L.
- Re: 'table' as fallback for tables, Andrew Starks
- Re: 'table' as fallback for tables, Andrew Starks
- Re: 'table' as fallback for tables, Tim Hill
- Re: 'table' as fallback for tables, Sean Conner
- Re: 'table' as fallback for tables, Philipp Janda
- Re: 'table' as fallback for tables, Tim Hill