NSNumber+TurkishSpellOut

NSNumber+TurkishSpellOut.h

// erkanyildiz
// 20140728-0035
//
// NSNumber+TurkishSpellOut.h

#import <Foundation/Foundation.h>

@interface NSNumber (TurkishSpellOut)
-(NSString*)spellOutTurkish;
@end

NSNumber+TurkishSpellOut.m

// erkanyildiz
// 20140728-0035
//
// NSNumber+TurkishSpellOut.m

#import "NSNumber+TurkishSpellOut.h"

@implementation NSNumber (TurkishSpellOut)
-(NSString*)spellOutTurkish
{
    NSArray* ones = @[@"",@"bir",@"iki",@"üç",@"dört",@"beş",@"altı",@"yedi",@"sekiz",@"dokuz"];
    NSArray* tens = @[@"",@"on",@"yirmi",@"otuz",@"kırk",@"elli",@"altmış",@"yetmiş",@"seksen",@"doksan"];
    NSArray* mils = @[@"",@"bin",@"milyon",@"milyar",@"trilyon",@"katrilyon",@"kentilyon",@"seksilyon",@"septilyon"];
    
    long long n = self.longLongValue;   // number to be processed
    NSString* r = @"";                  // return string
    NSInteger c = 0;                    // counter
    
    while (n > 0)
    {
        NSString* p=@"";                // partial string
        NSInteger d = n%10;             // current digit value
        
        if(c%3 == 0)
        {
            if(!(d == 1 && c/3 == 1) || n%1000 > 1)   // prevent "bir bin"
                p = ones[d];
            
            if(n%1000 != 0)     // add mille suffix ("bin", "milyon", "milyar"...) if at least one digit exists
                p = [p stringByAppendingFormat:@" %@",mils[c/3]];
        }
        else if(c%3 == 1)
        {
            p = tens[d];
        }
        else if(c%3 == 2)
        {
            if(d > 1)           // prevent "bir yüz"
                p = [ones[d] stringByAppendingString:@" "];
            
            if(d > 0)
                p = [p stringByAppendingString:@"yüz"];
        }
        
        if (![p isEqualToString:@""])
            r = [@" " stringByAppendingString:r];
        
        r = [p stringByAppendingString:r];
        
        c++;
        n/=10;
    }
    
    // delete uncesssary spaces
    r = [r stringByReplacingOccurrencesOfString:@"  " withString:@" "];
    r = [r stringByTrimmingCharactersInSet:NSCharacterSet.whitespaceCharacterSet];
    
    return r;
}

@end