[Newbie] Extracting a specific character number from a string
[Newbie] Extracting a specific character number from a string
- Subject: [Newbie] Extracting a specific character number from a string
- From: Phil Faber <email@hidden>
- Date: Wed, 6 Aug 2008 23:23:16 +0100
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]);
...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?
Thanks.
Phil
{
NSMutableString *pass1;
int i;
pass1=@"This is the sentence to check";
NSLog(@"length of %@ is %i",pass1,[pass1 length]);
for (i=1;i<=[pass1 length];i++)
{
// This displays characters UP to character 'i'
NSLog(@"Characters up to %i of %@ are %@",i,pass1,[pass1
substringToIndex:i]);
// This is SUPPOSED to display character number 'i' ONLY
NSLog(@"Character %i of %@ is %@",i,pass1,[pass1
substringWithRange:i,i]);
}
}
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