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Re: Formatting integer value
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Re: Formatting integer value


  • Subject: Re: Formatting integer value
  • From: Sherm Pendley <email@hidden>
  • Date: Mon, 14 Feb 2005 08:39:10 -0500

On Feb 14, 2005, at 8:02 AM, René Korthaus wrote:

i have a problem: I read an integer value from an xml file (plist format) which is the duration of a song.
The formatted integer value is like "325407", where 325 are seconds and 407 are milliseconds. Now i want to make a 3:25 string out of it to display the duration of that song in a tableview. I cannot figure out how to drop the 407ms off that integer value.

You can extract substrings using NSString's -substringWithRange: method. This example assumes that seconds are always two digits (zero-padded if necessary), and milliseconds are always three digits. Based on your description of the output you need, it also assumes that 325 means 3 minutes, 25 seconds, not 325 seconds. Minutes can be any number of digits, or missing entirely.

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

NSString *time = @"325407";

NSRange theRange = { [time length]-3, 3 };
NSString *milliseconds = [time substringWithRange:theRange];

theRange.location = [time length]-5;
theRange.length = 2;
NSString *seconds = [time substringWithRange:theRange];

theRange.location = 0;
theRange.length = [time length]-5;
NSString *minutes = [time substringWithRange:theRange];


NSLog(@"Time=%@:%@:%@", minutes, seconds, milliseconds);


[pool release];
return 0;
}

sherm--

Cocoa programming in Perl: http://camelbones.sourceforge.net
Hire me! My resume: http://www.dot-app.org
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