Re: [Newbie] Extracting a specific character number from a string
Re: [Newbie] Extracting a specific character number from a string
- Subject: Re: [Newbie] Extracting a specific character number from a string
- From: Ricky Sharp <email@hidden>
- Date: Wed, 6 Aug 2008 17:32:51 -0500
On Aug 6, 2008, at 5:23 PM, Phil Faber wrote:
I'm trying to learn more about string manipulation and want to be
able to extract a single character from a string. I think I need to
use subStringWithRange (exacting from and to the same character
location) but I'm not sure and I'm also unsure how to code it.
Basically I'm after the equivalent of the old-fashioned BASIC
command MID$ [ i.e. MID$("This is the sentence to check",4,1) to get
character 4. ]
The following code works fine except for the..
NSLog(@"Character %i of %@ is %@",i,pass1,[pass1 substringWithRange:
1,2]);
The parameter to substringWithRange is a NSRange. So, you'll need to
pass in something like:
NSMakeRange(1, 1)
Note also the second param to NSMakeRange is actually a length value
and not an index.
...line simply because I don't know how to code that line. I think
it's something to do with how to set the range that I'm getting wrong.
Can anyone please advise what than line is supposed to be to pull
out the correct character?
But that is all overkill if you want to extract individual characters
from a string. See NSString's characterAtIndex: API.
___________________________________________________________
Ricky A. Sharp mailto:email@hidden
Instant Interactive(tm) http://www.instantinteractive.com
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