Re: Accessing String contents
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- Subject: Re: Accessing String contents
- From: Dirk Laurie <dirk.laurie@...>
- Date: 2012年6月21日 11:48:30 +0200
2012年6月21日 <meino.cramer@gmx.de>:
>
> I want to access/retrieve the n-th character.
>
…
>
> 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.... :)
>
There's some good (though advanced) stuff on the Lua Wiki:
http://lua-users.org/wiki/StringIndexing
E.g. you're shown how to get this:
-- demo
a='abcdef'
return a[4] --> d
return a(3,5) --> cde
return a{1,-4,5} --> ace
So there you have it: one-byte substrings with square brackets,
to-from substrings with round, selected bytes with curly.