How to separate NSString with multiple commas? - ios

Question

Am having this nsstring
NSString * countryStr = #"6023117,159,en_US,Seychelles,SC,Seychelles,6023185,95,en_US,Kuwait,KW,Kuwait,6023182,172,en_US,Swaziland,SZ,Swaziland,6023185,157,en_US,Saudi Arabia,SA,Saudi Arabia,6023182,177,en_US,Tanzania,TZ,Tanzania,6023185,179,en_US,Togo,TG,Togo,6023185,87,en_US,Cote d'Ivoire,CI,Cote d'Ivoire";
now i want to display only the countries which are suffixed by "en_US".
can anybody tell me how to split that string to get the countries.
I did like this
NSError * error;
NSString* imageName = [[NSBundle mainBundle] pathForResource:#"CountryList" ofType:#"txt"];
NSString * countrStr = [NSString stringWithContentsOfFile:imageName encoding:NSStringEncodingConversionAllowLossy error:&error];
NSArray * dfd = [countrStr componentsSeparatedByString:#"en_US"];
for(int i=0;i<dfd.count;i++)
{
NSString * nama = [dfd objectAtIndex:1];
NSArray * djk = [nama componentsSeparatedByString:#","];
NSString * aksjd = [djk objectAtIndex:1];
}

Answer 1

You can do it like this;
NSString * countryStr = #"6023117,159,en_US,Seychelles,SC,Seychelles,6023185,95,en_US,Kuwait,KW,Kuwait,6023182,172,en_US,Swaziland,SZ,Swaziland,6023185,157,en_US,Saudi Arabia,SA,Saudi Arabia,6023182,177,en_US,Tanzania,TZ,Tanzania,6023185,179,en_US,Togo,TG,Togo,6023185,87,en_US,Cote d'Ivoire,CI,Cote d'Ivoire";
NSArray * arrData = [countryStr componentsSeparatedByString:#","];;//[countryStr componentsSeparatedByString:#"en_US"];
for(int i=0;i<arrData.count;i++)
{
NSString * str = [arrData objectAtIndex:i];
if ([str isEqualToString:#"en_US"] && i<arrData.count-1)
{
NSString* countryName = [arrData objectAtIndex:i+1];
NSLog(#"countryName %#", countryName);
}
}
But you should manage data in your file, loading from resource.

Answer 2

Best way to do it is
NSString *string = [NSString stringWithFormat: #"%#, %#, %#", var1, var2, var3];
Excuse the formatting/syntax errors. Typing this via iPhone. But if there is any errors, look up stringWithFormat: in iOS documents on the apple developer page for corrections.

Answer 3

Your string seems to have the following pattern:
A number,
An other number,
The country language code,
The name,
A short code,
An (other) name.
So what you can do is to use a loop like this:
for (int i = 0; i < dfd.count; i += 6) {
if ( dfd[i + 2] ) } // check the country code at index i + 2
// Do something
}
}