query: Understanding Perl regular expression modifers /m and /s
positive_passages.docid: 6448
positive_passages.text: Reference - What does this regex mean?
negative_passages.docid: 11423
negative_passages.text: Understand the meaning of `$_`
negative_passages.docid: 124548
negative_passages.text: Perl regex: replace all backslashes with double-backslashes
negative_passages.docid: 145107
negative_passages.text: Complexity of Regex substitution
negative_passages.docid: 155226
negative_passages.text: Escaping a forward slash in a regular expression
negative_passages.docid: 94766
negative_passages.text: How does double arrow (=>) operator work in Perl?
negative_passages.docid: 99330
negative_passages.text: Why do you need $ when accessing array and hash elements in Perl?
negative_passages.docid: 120721
negative_passages.text: Why can't I match my string from standard input in Perl?
negative_passages.docid: 83028
negative_passages.text: What is <<<_END?
negative_passages.docid: 37188
negative_passages.text: Difference between '.' , '?' and '*' in regular expressions?
negative_passages.docid: 73024
negative_passages.text: PHP regex delimiters, / vs. | vs. {} , what are the differences?
negative_passages.docid: 10632
negative_passages.text: sed regular expression behaving differently than in vim and perl?
negative_passages.docid: 152230
negative_passages.text: Short example of regular expression converted to a state machine?
negative_passages.docid: 141606
negative_passages.text: How can I recognize an evil regex?
negative_passages.docid: 60560
negative_passages.text: Tilde operator in Regular expressions
negative_passages.docid: 14585
negative_passages.text: Why am I getting the last octet repeated when my Perl program outputs a UTF-8 encoded string in cmd.exe?
negative_passages.docid: 122404
negative_passages.text: Explain this perl code which displays common lines in 2 files