Question

I have mainString from which i need to get the part of the string after finding a keyword.

NSString *mainString = “Hi how are you GET=dsjghdsghghdsjkghdjkhsg”;

now I need to get the string after the keyword “GET=”.

Waiting for a reply.

Answer 1

You can use a regex via RegexKitLite:

NSString *mainString = @"Hi how are you GET=dsjghdsghghdsjkghdjkhsg";
NSString *matchedString = [mainString stringByMatching:@"GET=(.*)" capture:1L];
// matchedString == @"dsjghdsghghdsjkghdjkhsg";

The regex used, GET=(.*), basically says “Look for GET=, and then grab everything after that”. The () specifies a capture group, which are useful for extracting just part of a match. Capture groups begin at 1, with capture group 0 being “the entire match”. The part inside the capture group, .*, says “Match any character (the .) zero or more times (the *)”.

If the string, in this case mainString, is not matched by the regex, then matchedString will be NULL.