Convert Special Characters for RTF

Question

Can someone please assist me with converting special characters to something that can be correctly represented in an RTF file?

I am taking text stored in a string on the

Answer 1

Check the value of characterAtIndex: if it is > 127, it is not ASCII, so escape the character.

Something like the following

- (NSString *)stringFormattedRTF:(NSString *)inputString
{
    NSMutableString *result = [NSMutableString string];

    for ( int index = 0; index < [inputString length]; index++ ) {
        NSString *temp = [inputString substringWithRange:NSMakeRange( index, 1 )];
        unichar tempchar = [inputString characterAtIndex:index];

        if ( tempchar > 127) {
            [result appendFormat:@"\\\'%02x", tempchar]; 
        } else {
            [result appendString:temp];
        }
    }
    return result;
}