package utf8;

##
## Store the alias definitions for later use.
##

my $dir;
for (@INC) {
  $dir = $_, last if -e "$_/unicore/PropertyAliases.txt";
}

use Carp 'confess';

local *_;
local $.; # localizes Pl_last_in_gv

open PA, "< $dir/unicore/PropertyAliases.txt"
    or confess "Can't open PropertyAliases.txt: $!";
while (<PA>) {
    s/#.*//;
    s/\s+$//;
    next if /^$/;

    my ($abbrev, $name) = split /\s*;\s*/;
    next if $abbrev eq "n/a";
    tr/ _-//d for $abbrev, $name;
    $PropertyAlias{lc $abbrev} = $name;
    $PA_reverse{lc $name} = $abbrev;
}
close PA;

open PVA, "< $dir/unicore/PropValueAliases.txt"
    or confess "Can't open PropValueAliases.txt: $!";
while (<PVA>) {
    s/#.*//;
    s/\s+$//;
    next if /^$/;

    my ($prop, @data) = split /\s*;\s*/;
    shift @data if $prop eq 'ccc';
    next if $data[0] eq "n/a";

    $data[1] =~ tr/ _-//d;
    $PropValueAlias{$prop}{lc $data[0]} = $data[1];
    $PVA_reverse{$prop}{lc $data[1]} = $data[0];

    my $abbr_class = ($prop eq 'gc' or $prop eq 'sc') ? 'gc_sc' : $prop;
    $PVA_abbr_map{$abbr_class}{lc $data[0]} = $data[0];
}
close PVA;

# backwards compatibility for L& -> LC
$PropValueAlias{gc}{'l&'} = $PropValueAlias{gc}{lc};
$PVA_abbr_map{gc_sc}{'l&'} = $PVA_abbr_map{gc_sc}{lc};

1;