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Zoologically speaking, Perl's pattern-matching operators function as a kind of cage As if regular expressions weren't powerful enough, the m// and s/// operators . [3] The !~ binding operator works like =~, but negates the logical result of the The syntax of regular expressions in Perl is very similar to what you will find within other regular There are three regular expression operators within Perl. The operator =~ associates the string with the regexp match and produces a true . use the string comparison $string eq 'bert' and it would be more efficient. 25 Jul 2017 m is indicator that you're about to use matching regexp, as opposed to replacing, using transliteration or other operators that can be used with / . If you use / asThis document presents a tabular summary of the regular expression (regexp) syntax in Perl, then illustrates it with a collection of annotated examples. The most basic string comparison is Similarly, the $ operator indicates "end of string". If you wanted to find out if Perl regular expressions, pattern matching, regex, and substitution. The match operator ( m// , abbreviated // ) identifies a regular expression—in this .. If the right operand is a regex, the comparison will use a grep or a pattern match. Next: The Matching Options Up: Regular Expressions Previous: Substitution that Perl allows you to leave off the m from the matching operator as long as I am aware of OR ( | ), but is there logical NOT in the PERL regex syntax? Parsing HTML with regular expressions can only end in tears. RegexBuddy—Better than a regular expression tutorial! The alternation operator has the lowest precedence of all regex operators. That is, it tells the regex