Regular Expression Patterns : Pattern matching « Regular Expression « Perl






  1. Perl
  2. Regular Expression
  3. Pattern matching

Regular Expression Patterns

    

Pattern     Interpretation
/a/         Looks for any instance of a.
/a+/        Matches one or more instances of a. 
/a*/        Matches zero or more instances of a.
/a?/        Matches zero or one instance of a.
/a|b/       Matches either a or b.








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