http://www.perlmonks.org?node_id=853539

Javascript regular expressions does not have perl feature \p{Print} and with the help of this program now you can hardcode those as character class ranges

#!/usr/bin/perl -- use strict; use warnings; use utf8; unshift @ARGV , qw[ Print ]; for my $item ( @ARGV ){ my $swash ; unless( eval { $swash = utf8->SWASHNEW( $item ); 1; } ){ warn $@; next; } next unless ref $swash; #~ http://perl5.git.perl.org/perl.git/blob?f=lib/unicore/mktables #~ push @OUT, sprintf "%04X\t\t%s\n", $start, $name; #~ } else { #~ push @OUT, sprintf "%04X\t%04X\t%s\n", $start, $end, $name; #~ http://perl5.git.perl.org/perl.git/blob?f=lib/utf8_heavy.pl my $out = '['; while ($swash->{LIST} =~ /^([0-9a-fA-F]+)(?:[\t]([0-9a-fA-F]+)?)(? +:[ \t]([0-9a-fA-F]+))?/mg) { my $min = $1; my $max = defined $2 ? $2 : $min; if( $min eq $max ){ $out .= '\\u'.$min; } else { $out .= '\\u'.$min.'-'.'\\u'.$max; } } $out .= ']'; print "\n$item => $out\n\n"; } __END__ Print => [\u0009-\u000D\u0020-\u007E\u0085\u00A0-\u0377\u037A-\u037E\u +0384-\u038A\u038C\u038E-\u03A1\u03A3-\u0523\u0531-\u0556\u0559-\u055F +\u0561-\u0587\u0589-\u058A\u0591-\u05C7\u05D0-\u05EA\u05F0-\u05F4\u06 +00-\u0603\u0606-\u061B\u061E-\u061F\u0621-\u065E\u0660-\u070D\u070F-\ +u074A\u074D-\u07B1\u07C0-\u07FA\u0901-\u0939\u093C-\u094D\u0950-\u095 +4\u0958-\u0972\u097B-\u097F\u0981-\u0983\u0985-\u098C\u098F-\u0990\u0 +993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7-\u09C8\ +u09CB-\u09CE\u09D7\u09DC-\u09DD\u09DF-\u09E3\u09E6-\u09FA\u0A01-\u0A0 +3\u0A05-\u0A0A\u0A0F-\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32-\u0A33\u0 +A35-\u0A36\u0A38-\u0A39\u0A3C\u0A3E-\u0A42\u0A47-\u0A48\u0A4B-\u0A4D\ +u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F +-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2-\u0AB3\u0AB5-\u0AB9\u0ABC-\u0 +AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF1\u +0B01-\u0B03\u0B05-\u0B0C\u0B0F-\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32 +-\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47-\u0B48\u0B4B-\u0B4D\u0B56-\u0 +B57\u0B5C-\u0B5D\u0B5F-\u0B63\u0B66-\u0B71\u0B82-\u0B83\u0B85-\u0B8A\ +u0B8E-\u0B90\u0B92-\u0B95\u0B99-\u0B9A\u0B9C\u0B9E-\u0B9F\u0BA3-\u0BA 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+-\u10A13\u10A15-\u10A17\u10A19-\u10A33\u10A38-\u10A3A\u10A3F-\u10A47\ +u10A50-\u10A58\u12000-\u1236E\u12400-\u12462\u12470-\u12473\u1D000-\u +1D0F5\u1D100-\u1D126\u1D129-\u1D1DD\u1D200-\u1D245\u1D300-\u1D356\u1D +360-\u1D371\u1D400-\u1D454\u1D456-\u1D49C\u1D49E-\u1D49F\u1D4A2\u1D4A +5-\u1D4A6\u1D4A9-\u1D4AC\u1D4AE-\u1D4B9\u1D4BB\u1D4BD-\u1D4C3\u1D4C5- +\u1D505\u1D507-\u1D50A\u1D50D-\u1D514\u1D516-\u1D51C\u1D51E-\u1D539\u +1D53B-\u1D53E\u1D540-\u1D544\u1D546\u1D54A-\u1D550\u1D552-\u1D6A5\u1D +6A8-\u1D7CB\u1D7CE-\u1D7FF\u1F000-\u1F02B\u1F030-\u1F093\u20000-\u2A6 +D6\u2F800-\u2FA1D\uE0001\uE0020-\uE007F\uE0100-\uE01EF\uF0000-\uFFFFD +\u100000-\u10FFFD]

See perlunicode,perluniprops, perlrecharclass