Re: split method?
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- Subject: Re: split method?
- From: Norbert Kiesel <nkiesel@...>
- Date: 2011年6月27日 11:05:40 -0700
On Mon, 2011年06月27日 at 12:37 -0400, Dave Collins wrote:
> I’ve used this split (string to table) method I found here:
> http://stackoverflow.com/questions/1426954/split-string-in-lua.
>
>
>
> I’ve got it working, but I don’t understand it.
Read the manual again, especially the part about Function calls (2.5.8).
>
>
>
> function string:split(delimiter)
>
> local result = { }
>
> local from = 1
>
> local delim_from, delim_to = string.find( self, delimiter, from
> )
>
> while delim_from do
>
> table.insert( result, string.sub( self, from ,
> delim_from-1 ) )
>
> from = delim_to + 1
>
> delim_from, delim_to = string.find( self, delimiter, from
> )
>
> end
>
> table.insert( result, string.sub( self, from ) )
>
> return result
>
> end
>
>
>
> This is how I’m calling it:
>
>
>
> local myDateString = "2011年06月21日"
>
> local myDateTbl = myDateString.split(myDateString,"-")
You could (should?) call it like that:
local myDateTbl = myDateString:split("-")
Function definitions using : add an implicit first parameter called
"self". Again, read section 2.5.8 of the manual (or the relevant
sections from the wonderful Lua Wiki).
</nk>