How to split NSString and Rejoin it into two NSStrings? - ios

Question

I have a NSString like this one:
NSString* allSeats = #"1_Male,2_Female,3_Female,4_Male";
I want to split the NSString based on the keywords _Male & _Female and then make two separate strings like these:
NSString* maleSeats = #"1,4";
NSString* femaleSeats = #"2,3";
based on the contents of allSeats variable declared above.
How it will be possible to split NSString and then make 2 seperate strings?

Answer 1

You have to do it yourself. There is no "all done" solution. There are a few ways to do it.
Note: I didn't try my code, I just wrote it, it may don't even compile. But the important thing is that you get the whole idea behind it.
One way could be this one:
NSString *maleSufffix = #"_Male";
NSString *femaleSufffix = #"_Female";
NSMutableArray *femaleSeatsArray = [[NSMutableArray alloc] init];
NSMutableArray *maleSeatsArray = [[NSMutableArray alloc] init];
NSArray *array = [allSeats componentsSeparatedByString:#","];
for (NSString *aSeat in array)
{
if ([aSeat hasSuffix:maleSuffix])
{
[maleSeatsArray addObject:[aSeat stringByReplacingOccurencesOfString:maleSuffix withString:#""]];
}
else if ([aSeat hasSuffix:femaleSuffix])
{
[femalSeatsArray addObject:[aSeat stringByReplacingOccurencesOfString:femaleSuffix withString:#""]];
}
else
{
NSLog(#"Unknown: %#", aSeat);
}
}
NSString *maleSeats = [maleSeatsArray componentsJoinedByString:#","];
NSString *femaleSeats = [femaleSeatsArray componentsJoinedByString:#","];
Of course, you could use different methods on array, enumerating it, use a NSMutableString instead of a NSMutableArray (for femaleSeatsArray or maleSeatsArray, and use adequate methods then in the for loop).

Answer 2

I derived an idea from Larme's Clue and it works as :
Make a method as and call it anywhere :
-(void)seperateSeat
{
maleSufffix = #"_Male";
femaleSufffix = #"_Female";
femaleSeatsArray = [[NSMutableArray alloc] init];
maleSeatsArray = [[NSMutableArray alloc] init];
array = [self.selectedPassengerSeat componentsSeparatedByString:#","];
for (aSeat in array)
{
if ([aSeat hasSuffix:maleSufffix])
{
aSeat = [aSeat substringToIndex:[aSeat length]-5];
NSLog(#"%# is value in final seats ::",aSeat );
[maleSeatsArray addObject:aSeat];
}
else if ([aSeat hasSuffix:femaleSufffix])
{
aSeat = [aSeat substringToIndex:[aSeat length]-7];
NSLog(#"%# is value in final seats ::",aSeat );
[femaleSeatsArray addObject:aSeat];
}
}
totalMales = [maleSeatsArray componentsJoinedByString:#","];
totalFemales = [femaleSeatsArray componentsJoinedByString:#","];
NSLog(#"maleSeatsAre::::%#",totalMales);
NSLog(#"maleSeatsAre::::%#",totalFemales);
}