i personally would be interested in why the following happens: 
"\n" =~ /\n.*\z/;   # matches
"\n" =~ /.*\z/;     # doesn't match. i would expect it to match
"\n" =~ /[^\n]*\z/; # matches. like expected. but [\n]* is like .*

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/s or not /s doesn't have to do something with this, or at least it shouldn't, i think.

In reply to Re^4: Strange regex to test for newlines: /.*\z/ by tinita
in thread Strange regex to test for newlines: /.*\z/ by betterworld

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