-[__NSArrayI stringByReplacingOccurrencesOfRegex:withString:]: unrecognized selector sent to instance

Question

Im trying to clean up a json stream and get the error listed above

NSString *traveladvice = [json valueForKeyPath:@"travel_advice_article.travel_advice_sections.body.markup"];

which gets me a stream with lots of javascript regular expressions like \U00a0 which I want to remove. Im using to regexlite to remove.

NSString *regexString = @"U00a0"; 
NSString *replacementString = @"";
NSString *travelparse1 = nil; 

travelparse1 = [travelAdvice stringByReplacingOccurrencesOfRegex:regexString     
withString:replacementString];

I understand the error but whats confusing me is that traveladvice is an NSString not an NSArray.

You do know that isn't a "javascript regular expression", but a UTF8 character representation, right? — paulbailey, Mar 15 '11 at 14:13
Excuse me, UTF16. This question should help: http://stackoverflow.com/questions/2099349/using-objective-c-cocoa-to-unescape-unicode-characters-ie-u1234 — paulbailey, Mar 15 '11 at 14:17

score 0 · Accepted Answer · answered Mar 15 '11 at 14:13

0

json valueForPath might return an array, not a string. stop in a debugger and do 'po traveladvice' it will show you the actual data.

also, store the result type as 'id' and not NSString* to avoid confusion

answered Mar 15 '11 at 14:13

reflog

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Exactly the issue , traveladvice should be a NSArray thank you! – Coasty Mar 16 '11 at 14:02

-[__NSArrayI stringByReplacingOccurrencesOfRegex:withString:]: unrecognized selector sent to instance

1 Answers1