string to int array in objective - objective-c

Question

Hi I trying to convert string to int array in objective C its running fine in xcode but give some error in editor http://ideone.com
I have input like = {1,2,3,4,5} and want to convert it into int array or NSARRAY in and print....
#import <Foundation/Foundation.h>
NSArray* sampleMethod(NSString*val){
NSString *stringWithoutbracketstart = [val stringByReplacingOccurrencesOfString:#"{" withString:#""];
NSString *stringWithoutbracketend = [stringWithoutbracketstart
stringByReplacingOccurrencesOfString:#"}" withString:#""];
NSLog(#"%#",stringWithoutbracketend);
NSArray *items=[[NSArray alloc]init];
items = [stringWithoutbracketend componentsSeparatedByString:#","];
//NSLog(#"%#",items);
return items;
}
int main(int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString *value =#"{1,2,3}";
NSArray* ip1= sampleMethod(value);
NSLog(#"%#",ip1);
[pool drain];
return 0;
}

Answer 1

Why not make the input string valid JSON and then it can be arbitrarily extended with little coding effort (no effort at all with respect to parsing):
int main(int argc, const char **argv)
{
int retval = 0;
#autoreleasepool {
if (argc == 2) {
NSString *str = #(argv[1]);
NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];
NSError *error = nil;
NSArray *array = [NSJSONSerialization JSONObjectWithData:data
options:0
error:&error];
if ([array isKindOfClass:[NSArray class]]) {
// Done
} else if (!array) {
NSLog(#"Input data is invalid: %#", [error localizedDescription]);
retval = 2;
} else {
NSLog(#"Input data is invalid");
retval = 3;
}
} else {
NSLog(#"Provide a JSON-list");
retval = 1;
}
}
return retval;
}
This means you would need to supply the list in JSON format:
$ ./myprog '[ 1, 2, 3 ]'
(quotes are necessary)

Answer 2

I found the solution easily by using your advice....
#import <Foundation/Foundation.h>
NSArray*sampleMethod(NSString*val){
NSString *newStr = [val substringFromIndex:1];
NSString *newStr1 = [newStr substringToIndex:[newStr length]-1];
NSArray *yourWords = [newStr1 componentsSeparatedByString:#","];
return yourWords;
}
int main(int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString *value =#"{1,2,3}";
NSArray* ip1= sampleMethod(value);
NSLog(#"%#",ip1);
[pool drain];
return 0;
}