use Test;
use strict;
use warnings;
BEGIN { plan tests => 43 };

use Unicode::Regex::Set qw(parse);
ok(1); # If we made it this far, we're ok.

use vars qw(@char $digit $upper $lower $space $punct);

$digit = join '', "0".."9";
$upper = join '', "A".."Z";
$lower = join '', "a".."z";
$space = "\n\r\t\f\ ";
$punct = '!"#$%&\'()*+,-./:;<=>?@[\]^_`{|}~';


@char = split //, "$digit$upper$lower$space$punct";

sub testregex {
    my $pat = parse(shift);
    join '', grep /^$pat\z/, @char;
}

ok(testregex('[A-Z]'),
	 $upper);

ok(testregex('[A-Z xyz]'),
	 $upper.'xyz');

ok(testregex('[A&G]'),
	 'AG&');

ok(testregex('[A-Z&a-z]'),
	 "$upper$lower&");

ok(testregex('[A-Z & PERL]'),
	 'ELPR');

ok(testregex('[A-Z & xyz]'),
	 '');

ok(testregex('[A-Z & C-S & K-V]'),
	 'KLMNOPQRS');

ok(testregex('[A-Z - C-S - K-V]'),
	 'ABWXYZ');

ok(testregex('[[A-Z & B-L] - [C-S - K-V]]'),
	 'BKL');

ok(testregex('[[A-Z & [D-L PERL]] - [C-S - K-V]]'),
	 'KLPR');

ok(testregex('[A-Z & [ABC L-Q] & [K-S - QRS]]'),
	 'LMNOP');

ok(testregex('[\p{Upper} & PERLperl | abc]'),
	 'ELPRabc');

ok(testregex('[\p{Latin} & PERLperl - abcdef]'),
	 'ELPRlpr');

ok(testregex('[\p{Latin} & PERLperl [abcde]]'),
	 'ELPRabcdelpr');

ok(testregex('[\p{Latin} & PERLperl | [cde]]'),
	 'ELPRcdelpr');

ok(testregex('[^ A-Z]'),
	 "$digit$lower$space$punct");

ok(testregex('[A-Z - [^ PERL]]'),
	 'ELPR');

ok(testregex('[A-Z & [^JUNK]]'),
	 'ABCDEFGHILMOPQRSTVWXYZ');

ok(testregex('[^B-Z & A-D]'),
	 $digit.'AEFGHIJKLMNOPQRSTUVWXYZ'."$lower$space$punct");

ok(testregex('[ \^\-\[ ]'),
	 '-[^');

ok(testregex('[^A-Z a-z]'),
	 "$digit$space$punct");

ok(testregex('[^ [A-Z a-z]]'),
	 "$digit$space$punct");

ok(testregex('[ ^A-Z PERL]'),
	 $digit."ELPR"."$lower$space$punct");

ok(testregex('[ ^A-Z ^a-z]'),
	 "$digit$upper$lower$space$punct");

ok(testregex('[A-Z & ^TEST]'),
	 'ABCDFGHIJKLMNOPQRUVWXYZ');

ok(testregex('[0-9 -TEST]'),
	 '0123456789EST-');

ok(testregex('[0- TEST]'),
	 '0EST-');

ok(testregex('[9\- TEST]'),
	 '9EST-');

ok(testregex('[0-9 T\	\ E^S-T]'), # TAB, SPACE, HAT, range
	 '0123456789EST	 ^');

ok(testregex('[0-9 T\	\ E^S\-T]'), # TAB, SPACE, HAT, range
	 '0123456789EST	 -^');

ok(testregex('[A-Z ^[:alnum:]]'),
	 "$upper$space$punct");

ok(testregex('[A-Z [^[:alnum:]]]'),
	 "$upper$space$punct");

ok(testregex('[A-Z [:^alnum:]]'),
	 "$upper$space$punct");

ok(testregex('[A-Z ^\p{Latin}]'),
	 "$digit$upper$space$punct");

ok(testregex('[A-Z [^\p{Latin}]]'),
	 "$digit$upper$space$punct");

ok(testregex('[A-Z \p{^Latin}]'),
	 "$digit$upper$space$punct");

ok(testregex('[REGEX\P{Latin}]'),
	 $digit."EGRX$space$punct");

ok(testregex('[A-Z - [:alnum:]]'),
	 "");

ok(testregex('[[:alnum:]]'),
	 "$digit$upper$lower");

ok(testregex('[[:alnum:] - 0123]'),
	 "456789$upper$lower");

ok(testregex('[[ace][bdf] - [abc][def]]'),
	 "");

ok(testregex('[[ace][bdf] - [abc][df]]'),
	 "e");