Simple regex negation -

-

Trying to match only the first letter in the sample below.

Sample String: C / C ++ / Objective Objective-C / Objective-C / Objective-C

My faulty regex: ( ?! [OO] Bjktiv [| -]?) C (?! \ + \ +)

Doh

Try it out: 

  (? & Lt ;! ]  
     
  •  Negative lookhead ( 
      
     Use negative attitudes instead of code> (? & Lt;!  ... )  bit) 
    •  
  •  Pipe characters removed from the character classes ( [ ... ]  bits. 
    •  
 
 Also add Can be worth  \ b  s has been added from both sides of  C , because your current regex  coconut ,  BBC < / Code>,  cfml  and so on 
 
 Also it is worth pointing out that inside the character classes,  -  is special If not the first or last character. Some people also survived in these situations Not like, ie  [\ -] , if then after characters added by mistake.

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