Fellow Monks,
thanks to your help (see Maybe Escape in Dynamic RegExps) I have been happy for quite while but now the fun is continued. 
my $e = '\\'   # kind of escape char
my $s = '\'';  # this is a string to use for splitting
if(string_contains_newlines()) {
  $s .= "\n"; # ?? right so?  
}
my $re = "(?<!\Q$e\E)\Q$s\E";
$split_re = qr/$re/s;

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That is to say: when the string to split contains newlines (or --more precisely-- $/) I need to split the string according to a new regular expression that takes the former separator (stored in $s here) plus the newline character(s).

As you might guess, the above code doesn't work and I've run out of ideas what else to try.

Any hints or help appreciated.

Regards... Stefan
you begin bashing the string with a +42 regexp of confusion

In reply to Matching Newlines in RegExp by stefan k

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