Regular Expressions

Alternation

• The pipe symbol ("|") allows you to specify a logical or operation between two possible expressions.
• This or is not for a single character (which should use the square brackets ("[]") character class), but instead is for the entire expression.
• Example:
  

  # Multigenderfier
  $theVar = "it";
  if ($theVar =~ /he|she|it/) {
      (print "Match One\n");  # Would Match
  }
  $theVar = "he";
  if ($theVar =~ /he|she|it/) {
      (print "Match One\n");  # Would Match
  }
  $theVar = "i";
  if ($theVar =~ /he|she|it/) {
      (print "Match One\n");  # Would Not Match
  }