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- Subject: Re: Accessing String contents
- From: Coda Highland <chighland@...>
- Date: Wed, 20 Jun 2012 22:44:36 -0500
On Wed, Jun 20, 2012 at 10:43 PM, Coda Highland <firstname.lastname@example.org> wrote:
> On Wed, Jun 20, 2012 at 10:36 PM, <email@example.com> wrote:
>> from a string in a table like this
>> I want to access/retrieve the n-th character.
>> Somewhere I read about, that in lua everything is a table,
>> therefore I thought that
>> would gives me "h" instead of an error.
>> But this may be thought too C-ish... ;)
>> I scanned through the String Tutorial, the String Library Tutotrial
>> and the online version of Programming Lua and found nothing what seems
>> appropiate to me...but I am sure that's due to me.... :)
>> What is the most cheapest (in terms of performance and programming
>> overhead) way to access the n-th character of a string which stored
>> at a certain index in a table?
>> Thank you very much in advance for any help!
>> Best regards,
> Strings are tables, but the characters aren't table elements. Lua
> doesn't offer that sugar. Instead, consult string.sub(). You'll
> probably use it like this:
> /s/ Adam
Correction: Strings are strings. Not everything in Lua is a table.
(Numbers aren't tables either, for example.) But strings have a common
metatable, which gives them access to the functions in the "string"