my problem is pretty simple. I assign a value to string variable in xcode which looks like this:
ARAMAUBEBABRBGCNDKDEEEFO and I need it like this:
AR,AM,AU,BE,BA,BR,BG,CN,DK,DE,EE,FO The length is different in each variable.
thanx in advance
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4 Answers
This function is usefull for numbers that need coma every thousands... which is what I wanted, hope it helps.
//add comas to a a string...
//example1: @"5123" = @"5,123"
//example2: @"123" = @"123"
//example3: @"123123123" = @"123,123,123"
-(NSString*) addComasToStringEvery3chrsFromRightToLeft:(NSString*) myString{
NSMutableString *stringFormatted = [NSMutableString stringWithFormat:@"%@",myString];
for(NSInteger i=[stringFormatted length]-3;i>0;i=i-3) {
if (i>0) {
[stringFormatted insertString: @"," atIndex: i];
}
}
return stringFormatted;
}
Comments
Try this:
int num;
NSMutableString *string1 = [NSMutableString stringWithString: @"1234567890"];
num = [string1 length];
for(int i=3;i<=num+1;i++) {
[string1 insertString: @"," atIndex: i];
i+=3;
}
2 Comments
NSString *yourString; // the string you want to process
int len = 2; // the length
NSMutableString *str = [NSMutableString string];
int i = 0;
for (; i < [yourString length]; i+=len) {
NSRange range = NSMakeRange(i, len);
[str appendString:[yourString substringWithRange:range]];
[str appendString:@","];
}
if (i < [str length]-1) { // add remain part
[str appendString:[yourString substringFromIndex:i]];
}
// str now is what your want
Comments
This would work well when your string is not very large:
NSString * StringByInsertingStringEveryNCharacters(NSString * const pString,
NSString * const pStringToInsert,
const size_t n) {
NSMutableString * const s = pString.mutableCopy;
for (NSUInteger pos = n, advance = n + pStringToInsert.length; pos < s.length; pos += advance) {
[s insertString:pStringToInsert atIndex:pos];
}
return s.copy;
}
If the string is very large, you should favor to compose it without insertion (append-only).
(define your own error detection)
