Wildcards in strings

Question

I'm interested in using rangeOfString with some wildcard characters as part of a search string.

For example, if I have several strings like "244px" and "356px" and I want to convert all such strings to "320px". Is there a way I can use wildcards to get the desired result?

Answer 1

If you could use regex, you can do substitution for this pattern "[1-9][0-9]+px" to "320px"

Answer 2

RegexKitLite is what you want, it has a small NSString extenstion class that lets you use the built-in regex libraries easily.

Answer 3

Use NSNumberFormatter configured to the right pattern.