//
//  NSNumberAdditions.m
//  JSRun Import Framework
//
//  Created by Jonathan Saggau on 8/31/06.
//  Copyright 2006 Jonathan Saggau. All rights reserved.
//

#import "NSNumberAdditions.h"

@implementation NSNumber (NSNumberAdditions)

+ (NSNumber *)numberWithString:(NSString *)aString;
{
    NSScanner *scanner;
    int scanLocation = 0;
    
    NSMutableString *string = [NSMutableString stringWithString:aString];
    [string replaceOccurrencesOfString:@" " 
                            withString:@"" 
                               options:NSCaseInsensitiveSearch 
                                 range:NSMakeRange(0, [string length])];
    //remove spaces
    
    scanner = [NSScanner scannerWithString:string];
    if ([string hasPrefix:@"$"]) scanLocation = 1;    
    // just in case we're given a dollar value
    
    int intResult;
    [scanner setScanLocation:scanLocation];
    if ([scanner scanInt:&intResult] 
        && ([scanner scanLocation] == [string length] )) {
        return [NSNumber numberWithInt:intResult];
    }
    
    float floatResult;
    [scanner setScanLocation:scanLocation];
    if ([scanner scanFloat:&floatResult] 
        && ([scanner scanLocation] == [string length] )) {
        return [NSNumber numberWithFloat:floatResult];
    }
    
    long long longLongResult;
    [scanner setScanLocation:scanLocation];
    if ([scanner scanLongLong:&longLongResult] 
        && ([scanner scanLocation] == [string length] )) {
        return [NSNumber numberWithLongLong:floatResult];
    }
    
    NSLog(@"Couldn't convert %@ to nsnumber", string);
    return [NSNumber numberWithInt:0];
}
@end