How to find and replace symbols in a string?

Question

I know it must be a very simple thing to do but I\'ve never had to treat strings before (in Objective-C) and apparently there\'s not RegEx on Cocoa-Touch.

Well, the

Answer 1

I understand you're trying to figure out the number included in the UITextFields's text property and assign it to a float variable.

Try using an NSScanner for this:

NSScanner* textScanner = [NSScanner localizedScannerWithString:textfield.text];
float* floatValue;
[textScanner scanFloat:&floatValue];

floatValue now contains the parsed float value of your textfield.