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  1. use utf8;
  2.  
  3. print "it matches that weird char\n" if "012੧3456" =~ /^\d+$/;
  4. print "it does not match 'a'\n" unless "a" =~ /\d/;
  5. print "with the 'a' modifier, it does not match anymore\n" unless "012੧3456" =~ /^\d+$/a;
Success #stdin #stdout 0.01s 4760KB
comments (?)
stdin 
Standard input is empty
stdout 
it matches that weird char
it does not match 'a'
with the 'a' modifier, it does not match anymore
https://ideone.com/Q1lf1M
language:
Perl (perl 5.28.1)
created:
12 years ago
visibility:
secret

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