Yeah, my takeaway from this was more "the dangers of Ruby" rather than "the dangers of single line regular expressions" (: I think the simplest fix would be to

Yeah, my takeaway from this was more "the dangers of Ruby" rather than "the dangers of single line regular expressions" (: I think the simplest fix would be to use "\Z" rather than "$", which means "match end of input" rather than "end of line." This is also Perl-compatible. So weird that the "$" default meaning is different in Ruby. I guess one could argue that Ruby's way is better since "$" has a fixed meaning, rather than being context-dependent. > Ruby seems to be in multiline mode all the time? Ruby does have a "/m" for multiline mode, but it just makes "." match newline, rather than changing the meaning of "$", it seems. [1] https://ruby-doc.org/3.2.2/Regexp.html#class-Regexp-label-Anchors https://ruby-doc.org/3.2.2/Regexp.html#class-Regexp-label-An... [2] https://perldoc.perl.org/perlre#Metacharacters https://perldoc.perl.org/perlre#Metacharacters