#!perl
#
# Author:      Peter J. Acklam
# Time-stamp:  2008-04-19 11:32:20 +02:00
# E-mail:      pjacklam@cpan.org
# URL:         http://home.online.no/~pjacklam

#########################

use 5.006;              # for the 'utf8' and 'warnings' pragmas
use strict;             # restrict unsafe constructs
use warnings;           # control optional warnings

use utf8;               # enable/disable UTF-8 (or UTF-EBCDIC) in source code

#########################

use Text::Unaccent::PurePerl;

#########################

sub nice_string {
    join "",
      map { $_ > 255 ?                  # if wide character...
            sprintf("\\x{%04X}", $_) :  # \x{...}
            chr($_) =~ /[^[:print:]]/ ? # else if non-printable ...
            sprintf("\\x%02X", $_) :    # \x..
            chr($_)                     # else as is
          }
        unpack 'U*', $_[0];             # unpack Unicode characters
}

#########################

my $data =
  [
   [
    "",
    "",
   ],
   [
    "naive",
    "naïve",
   ],
   [
    "deja vu",
    "déjà vu",
   ],
   [
    "Espana",
    "España",
   ],
   [
    "Francais",
    "Français",
   ],
   [
    "Citroen",
    "Citroën",
   ],
   [
    "Njal Saebo",
    "Njål Sæbø",
   ],
   [
    "Ελλαδα",
    "Ελλάδα",
   ],
   [
    "Русскии",
    "Русский",
   ],
  ];

print "1..18\n";

my $testno = 0;

for (my $i = 0 ; $i <= $#$data ; ++ $i) {
    for (my $j = 0 ; $j <= 1 ; ++ $j) {
        ++ $testno;

        my $in           = $data->[$i][$j];
        my $out_expected = $data->[$i][0];

        my $out_actual   = unac_string($in);

        if ($out_expected =~ /[^\000-\177]/ &&
            ! utf8::is_utf8($out_expected)) {
            warn "# expected the input string to have the utf8 flag set";
        }

        unless (defined $out_actual) {
            print "not ok ", $testno, "\n";
            print "  input ......: ", nice_string($in), "\n";
            print "  got ........: <UNDEF>\n";
            print "  expected ...: ", nice_string($out_expected), "\n";
            print "  error ......: the output is undefined\n";
            next;
        }

        if ($out_actual =~ /[^\000-\177]/ &&
            ! utf8::is_utf8($out_actual)) {
            warn "# expected the output string to have the utf8 flag set";
        }

        unless ($out_actual eq $out_expected) {
            print "not ok ", $testno, "\n";
            print "  input ......: ", nice_string($in), "\n";
            print "  got ........: ", nice_string($out_actual), "\n";
            print "  expected ...: ", nice_string($out_expected), "\n";
            print "  error ......: the actual output is not identical to",
              " the expected output\n";
            next;
        }

        if (utf8::is_utf8($in) &&
            $out_actual =~ /[^\000-\177]/ &&
            ! utf8::is_utf8($out_actual)) {
            print "not ok ", $testno, "\n";
            print "  input ......: ", nice_string($in), "\n";
            print "  got ........: ", nice_string($out_actual), "\n";
            print "  expected ...: ", nice_string($out_expected), "\n";
            print "  error ......: when the input string has the utf8 flag set,",
              " and the output contains non-ASCII characters, the output should",
                " also have the utf8 flag set\n";
            next;
        }

        print "ok ", $testno, "\n";
    }
}
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# Emacs coding: utf-8
# Emacs mode: perl
# Emacs End:
