Search code examples
regexuimarutapega

REGEX '\K' is not working in RUTA but working in REGEX buidler

I am trying to extract the last 3 characters from a pattern using below REGEX, which is working in online REGEX tester but not working in RUTA.

Below is the code that I have tried in online REGEX builder: https://regex101.com/r/2JN9a5/1

Below is code that I have tried in RUTA:

"(?i)\\b([QI]{2}|[Q])[\\s || -]{0,2}[0-9]{5,}[\\s || -]{0,2}\\K[A-Z]{3}\\b" -> EntityType;
  • Input : Q-123456-PAD

  • Exp O/p: PAD

  • Input : QI-1234567-PLB

  • Exp O/P: PLB
Solution

  • If it is Pega then try this 

    PACKAGE uima.ruta.example;

DECLARE VarA;
DECLARE VarB;
DECLARE VarC;


W{REGEXP("Q|QI") -> MARK(VarA)}
 (WS|"-")?  
  NUM{REGEXP(".{1,7}")-> MARK(VarB)}
 (WS|"-")?
  W{REGEXP(".{1,3}")-> MARK(VarC),MARK(EntityType,5,5), UNMARK(VarA), UNMARK(VarB), UNMARK(VarC)};

    Explanation:-

    (WS|"-")? :- Space or "-". You can remove the ? if one of that is fixed.

    NUM{REGEXP(".{1,7}") :- Number between 1 to 7.

    W{REGEXP(".{1,3}") :- Capital alphabet 1 to 3.

    MARK(EntityType,5,5) :- marking only the 5th row. i.e W{REGEXP(".{1,3}"). If you mark MARK(EntityType,1,5) then it will return Q-123456-PAD.