CODEWITHSUNDEEP
iosobjective-ccocoa-touch
sujay
sujay

Reputation: 1845

How to append a string in another string in objective c iphone

I am working with array of images containing images with jpg,png and gif extensions.I need to append a string @"-Add" to every image in array just before the extension.How can i achieve this. For ex :i have a image DSC004.jpg and i want to append string "-Add" ,so that my image name becomes DSC004-Add.jpg.?????

I thought of deleting the extension ,appending the required string and then again appending the extension.But my array of images has different extension with every image name.PLs help me out

Upvotes: 3

Views: 4484

Answers (7)

user1873574
user1873574

Reputation: 93

you can go with this one also:

NSError *error= NULL;  
NSString *myString = @"DSC004.jpg";
NSMutableString *tempStr =[[NSMutableString alloc] initWithString:myString];
NSRegularExpression *regex =[NSRegularExpression regularExpressionWithPattern:@"(\\..{3})$" options:NSMatchingReportCompletion error:&error];
[regex replaceMatchesInString:tempStr options:NSMatchingReportCompletion range:NSMakeRange(0,[myString length]) withTemplate:@"-Add$0"];

NSLog(@"%@",tempStr);

Here regex engine looks for the pattern <dot> followed by three characters and save it in $0 then replace it with -Add followed by saved value(match) in $0

Hope it helps too!

Upvotes: 0

Maheta Dhaval K
Maheta Dhaval K

Reputation: 794

  NSString *str = @"ajdgl.jpg";
        NSArray *array = [str componentsSeparatedByString:@"."];
        NSString *newStr;
        for (int i=0; i<[array count]-1; i++) {
            newStr = [NSString stringWithFormat:@"%@.%@",newStr,[array objectAtIndex:i]];
        }
        NSString *UpdatedName  = [NSString stringWithFormat:@"%@-add.%@",newStr,[array objectAtIndex:[array count]-1]];

Here first it will concat all the previous string and dot(.) also.. This will with any number of dots. in between your image name..

Upvotes: 2

Midhun MP
Midhun MP

Reputation: 107231

You can use the following code if your file name is like some.jpg:

NSString *newString = [@"DSC004.jpg" stringByReplacingOccurrencesOfString:@"." withString:@"-Add."];

If it is like some.some.jpg use:

NSArray *arrayString = [fileName componentsSeparatedByString:@"."];
NSMutableArray *mutableArray = [NSMutableArray arrayWithArray: arrayString];
int arrayCount = [arrayString count];
NSString *newStr = nil;
if(arrayCount>=2)
{
  NSString *tempStr = [arrayString objectAtIndex:arrayCount-2];
  tempStr = [tempStr stringByAppendingString:@"-Add"];  
  [mutableArray replaceObjectAtIndex:arrayCount-2 withObject:tempStr];
  newStr = [mutableArray componentsJoinedByString:@"."];
  NSLog(@"%@",newStr);

}
else
{
  newStr = [fileName stringByAppendingString:@"-Add"];
}

Upvotes: 0

Bhavesh Lathigara
Bhavesh Lathigara

Reputation: 1415

NSString *str = @"ajdgl.jpg";
NSArray *arr = [str componentsSeparatedByString:@"."];
NSString *newStr  = [NSString stringWithFormat:@"%@-add%@",[arr objectAtIndex:0],[arr objectAtIndex:1]];

Upvotes: 2

rmaddy
rmaddy

Reputation: 318934

The most complete and general way, but not the simplest, is something like this:

NSString *filename = @"DSC004.jpg";
NSString *ext = [filename pathExtension];
NSString *basename = [filename stringByDeletingPathExtension];
NSString *updated = [basename stringByAppendingString:@"-Add"];
NSString *finalName = [updated stringByAppendingPathExtension:ext];

This approach works with full pathnames or filenames and files with multiple periods in the name,.

Upvotes: 15

NiravPatel
NiravPatel

Reputation: 3260

NSString *original=@"DSC004.jpg";

NSString *target=[original stringByReplacingOccurrencesOfString:@"'.'" withString:@"-Add."];

try this and let me know my friend..

Happy Coding!!1

Upvotes: 0

SachinVsSachin
SachinVsSachin

Reputation: 6427

NSString *newString = [@"DSC004.jpg" stringByReplacingOccurrencesOfString:@"." withString:@"-Add."];

Upvotes: 1

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