Find file path of system font on OS X

gistfile1.txt

...
NSLog(@"%@", [self getSystemFontPath:18]);
NSLog(@"%s", [self getSystemFontPathCString:18]);
...

- (const char *)getSystemFontPathCString:(CGFloat)argFontSize
{
    NSString *path = [self getSystemFontPath:argFontSize];
    const char *path_cstring = [path cStringUsingEncoding:[NSString defaultCStringEncoding]];
    return path_cstring;
}

- (NSString *)getSystemFontPath:(CGFloat)argFontSize
{
    NSFont *sysFont = [NSFont systemFontOfSize:argFontSize];
    NSLog(@"%@", [sysFont fontName]);
    
    CTFontDescriptorRef fontRef = CTFontDescriptorCreateWithNameAndSize ((__bridge CFStringRef)[sysFont fontName], [sysFont pointSize]);
    CFURLRef url = (CFURLRef)CTFontDescriptorCopyAttribute(fontRef, kCTFontURLAttribute);
    NSString *fontPath = [NSString stringWithString:[(__bridge NSURL *)url path]];
    CFRelease(fontRef);
    CFRelease(url);
    return fontPath;
}

font size를 지정할 수 있도록 수정.