The validation of the XML-Declaration will be done on the basis of the official W3C Specification.
|
1: <?xml version="1.0" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>no error</title>
8: </head>
9: <body />
10: </html>
| There is no Error. |
1: <?xml
2: version =
3: "1.0"
4: encoding
5: =
6: "ISO-8859-1"
7: ?>
8: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
9: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
10:
11: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
12: <head>
13: <title>no error</title>
14: </head>
15: <body />
16: </html>
| White Spaces (blank, return, line feed or tabulator) are allowed between Attributes, so
if there are some in the XML-Declaration, no Error message may be displayed. |
1: <!DOCTYPE root [
2: <!ELEMENT foo EMPTY>
3: <!ELEMENT root (foo)>
4: ]>
5: <root>
6: <foo/>
7: </root>
| XML-Declarations in XML-documents are not mandatory. |
1: <?xml version="1.0" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>XML-Declaration is not at the document beginning</title>
8: </head>
9: <body />
10: </html>
| The XML-Declaration has to start at the beginning of the Document (Specification 2) |
1: <?xml verzion="1.0" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>syntax error</title>
8: </head>
9: <body />
10: </html>
| Naturally, the Syntax of the XML-Declaration should also be validated. |
1: <?xml version="#" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>illegal xml version</title>
8: </head>
9: <body />
10: </html>
| The version designation allowes just latin characters (a-z, A-Z), numeric characters (0-9)
and the special characters ".", "-", ":" and "_". |
1: <?xml version="a:Z-._0" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>illegal xml version</title>
8: </head>
9: <body />
10: </html>
| The syntax of this version designation "a:Z-._0" is right, but the meaning of it is totally stupid.
At the moment only XML version 1.0 exists, but the version designation has to be validated, so that future XML-Versions
can be valitated according to the right DTD or scheme.
|
1: <?xml version="" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>missing XML-Version</title>
8: </head>
9: <body />
10: </html>
| A version designation has to exist. |
1: <?xml version="1.0" encoding="#"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>illegal charset</title>
8: </head>
9: <body />
10: </html>
| The name of a charset encoding has to start with latin characters (a-z, A-Z).
The following characters may be latin characters (a-z, A-Z), numeric characters (0-9) or
the special characters ".", "-", "_". |
1: <?xml version="1.0" encoding="9ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>illegal charset 2</title>
8: </head>
9: <body />
10: </html>
| Also this charset encoding statement is invalid. |
1: <?xml version="1.0" encoding="UTF-99"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>unknown charset</title>
8: </head>
9: <body />
10: </html>
| If the charset encoding statement in the XML-Declaration is syntactically right,
but unknown, this also has to be reported. |
1: <?xml version="1.0" encoding="ISO-8859-1" lang="de"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de">
6: <head>
7: <title>syntax error</title>
8: </head>
9: <body />
10: </html>
| Arbitrary Attributes are not allowed in the XML-Declaration.
So those ones have to be reported. |
1: <?xml version="1.0" encoding="ISO-8859-1"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" lang="de" xml:lang="de">
6: <head>
7: <title>to many XML-declarations</title>
8: </head>
9: <body>
10: <?xml version="1.0" encoding="ISO-8859-1"?>
11: </body>
12: </html>
| The XML-Declaration may not be defined more often, than once per document. |
1: <?xml version="1.0" encoding="ISO-8859-1" standalone="foo"?>
2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4:
5: <html xmlns="http://www.w3.org/1999/xhtml" lang="de" xml:lang="de">
6: <head>
7: <title>illegal standalone-value</title>
8: </head>
9: <body />
10: </html>
| In standalone attribute there are only 'yes' or 'no' allowed. |
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