in reply to Re^2: Unicode combining characters as hash keys?
in thread Unicode combining characters as hash keys?
It still doesn't work though. The error message complains about not finding $nfd_letter in the hash…
Hmm. Very odd. There is no variable named $nfd_letter in your script.
This complete, self-contained, pared-down script…
#!perl use strict; use warnings; use charnames qw( :full ); use Unicode::Normalize; binmode STDOUT, ':encoding(UTF-8)'; # Lookup table of IPA properties by IPA symbol my %properties_by = ( d => [ qw( 0 0 ) ], a => [ qw( 0 1 ) ], NFD("\N{LATIN SMALL LETTER ALPHA}\N{COMBINING TILDE}") => [ qw( 1 0 ) ], s => [ qw( 1 1 ) ], ); # List of IPA phonemes my @phonemes = ( "das", "d\N{LATIN SMALL LETTER ALPHA}\N{COMBINING TILDE}s" ); # For each IPA phoneme... for my $phoneme (map { NFD($_) } @phonemes) { # ...examine each IPA symbol in it... for my $symbol ($phoneme =~ m/(\X)/g) { # ...and look up each symbol's IPA properties... my $properties = join ", ", @{ $properties_by{$symbol} }; print "$phoneme\t$symbol\t$properties\n"; } } exit 0;
…produces this output…
das d 0, 0 das a 0, 1 das s 1, 1 dɑ̃s d 0, 0 dɑ̃s ɑ̃ 1, 0 dɑ̃s s 1, 1
By the way, there is no precomposed Unicode character that is the Latin small letter alpha with a tilde. So all the Unicode normalizations of "\N{LATIN SMALL LETTER ALPHA}\N{COMBINING TILDE}" are exactly the same—and exactly that.
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