# -*- cperl -*-
# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl 02dtd.t'

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

use Test::More tests => 1 + 2*17;
BEGIN { use_ok('XML::DTD') };

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

my ($txt, $dtd);

$txt = <<EOF;
<!-- Comment -->
<!ELEMENT a (#PCDATA)>
<!ATTLIST a b CDATA #IMPLIED>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % c "   ">
<!NOTATION e PUBLIC "+//F//G//EN">
<?h i?>
%c;
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<![ IGNORE [
               ignored text
  <![[ IGNORE
  ]]>
]]>
<!-- A comment -->
<![ INCLUDE [
  <!-- Comment inside include -->
  <!ELEMENT j (#PCDATA)>
]]>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!-- Another comment -->
<!ENTITY % cond 'INCLUDE'>
<![ %cond; [
  <!-- Comment inside include -->
  <!ELEMENT k (#PCDATA)>
]]>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY deg "&#176;">
<!ELEMENT temp (#PCDATA)>
<!ATTLIST temp units CDATA '&deg;C'>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % xml-lang-attribute "xml:lang NMTOKEN #IMPLIED" >
<!ELEMENT a (b+)>
<!ELEMENT b (#PCDATA)>
<!ATTLIST b %xml-lang-attribute;>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % x "c">
<!ELEMENT a (a|b|%x;|d)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % class1 "a|b|c">
<!ENTITY % class2 "d|e|f">
<!ELEMENT g (#PCDATA | %class1; | %class2;)*>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % class "a | b | c | d
                  e | f">
<!ELEMENT g (#PCDATA | %class;)*>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % x "c|d">
<!ENTITY % y "%x;|e">
<!ELEMENT a (a|b|%y;|f)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % x "(a|b)">
<!ENTITY % y "(c|d)">
<!ENTITY % z "(%x;,%y;)">
<!ELEMENT aa %z;>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % w "aa">
<!ELEMENT top (%w;*)>
<!ELEMENT aa (a|b)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % w "aa">
<!ELEMENT top ((%w;)+)>
<!ELEMENT %w; (#PCDATA)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);



$txt = <<EOF;
<!ENTITY % w "aa">
<!ELEMENT top (b,(%w;)+)>
<!ELEMENT %w; (#PCDATA)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);


$txt = <<EOF;
<!ENTITY % A "a">
<!ENTITY % B "b">
<!ELEMENT c ((%A;)+ | (%B;)+)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);


$txt = <<EOF;
<!ENTITY % B "b">
<!ELEMENT a ((%B;)+)>
<!ELEMENT %B; (#PCDATA)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);


# NB: Entity B in the following example violates the "Proper Group/PE Nesting"
# constraint (see http://www.w3.org/TR/REC-xml/#vc-PEinGroup), but seems to be
# accepted without error by some common XML parsers, and is therefore
# supported by XML::DTD
$txt = <<EOF;
<!ENTITY % B "b?,">
<!ELEMENT a ((%B;c)+)>
<!ELEMENT b (#PCDATA)>
EOF
$dtd = new XML::DTD;
ok($dtd->sread($txt));
is($dtd->swrite(), $txt);