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Regular Expression nongreedy is greedy

code_junkie
Nov 12th, 2011
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  1. tooooooooooooon
  2.  
  3. toooooooonoooooon
  4.  
  5. t.*n
  6.  
  7. toooooooonoooooon
  8.  
  9. t.*?n
  10.  
  11. toooooooon
  12.  
  13. $a = "toooooo";
  14. $b = "toooooon";
  15.  
  16. if ($a =~ m/(to*?)/) {
  17. print $1,"n";
  18. }
  19. if ($b =~ m/(to*?n)/) {
  20. print $1,"n";
  21. }
  22.  
  23. ~>perl ex.pl
  24. t
  25. toooooon
  26.  
  27. /o*?/
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