Use of UTF-8 as the character encoding of the document is encouraged, - though the use of another character encoding is conforming.
+ though the use of another character encoding is still conforming. +The conformance checker cannot detect whether the input document + met the requirements on character encoding, since the document + is not inputed as a serialized byte sequence. The document is + not conforming if it is not encoded in an appropriate character + encoding with appropriate labeling.
The document does not contain a character encoding declaration. Unless the character encoding is explicitly - specified in upper‐level protocol, e.g. in HTTP, + specified in lower‐level protocol, e.g. in HTTP, or is implied by BOM, there must be a character encoding declaration. The document is non‐conforming.
@@ -67,12 +88,12 @@$0
is not a superset of ASCII.The document is not labeled with character encoding name - in upper‐level protocol, e.g. in HTTP, and + in lower‐level protocol, e.g. in HTTP, and the document is not begin with BOM. In addition, the character encoding of the document is not a superset of ASCII. The document is non‐conforming.
@@ -94,11 +115,50 @@{text} (Sniffed because no explicit specification
+ for the character encoding of this document is found in the transfer
+ procotol headers).{text} because no explicit specification
+ for the character encoding of this document is found in the transfer
+ procotol headers.{text} is used. Checking results might be
+ wrong.{text} is not supported.{text} is same as the character encoding specified
+ in the character encoding declaration. This is not an
+ error.$0, a character encoding declaration specifying
- character encoding as $1 is found. The document
+ {text}, a character encoding declaration specifying
+ a different character encoding is found. The document
is reparsed.While parsing a document in a character encoding, @@ -106,7 +166,7 @@ encoding of the document as another character encoding is found. The occurence of this warning itself does not make the document non‐conforming. However, the failure of the first attempt to - to detect the character encoding might be the result of non‐conformance + to detect the character encoding might be a result of non‐conformance of the document.
The document will be reparsed from the beginning. Some error @@ -124,6 +184,19 @@
NULL character
+ is not allowed.{text} is
+ not allowed.", ', and =."
+ or ' if it contains a ", ', or
+ = character.& character must
- introduce a reference.&.
An & character which
is not part of any reference appears in the input stream.
@@ -196,7 +285,8 @@
</ string is not followed
by a tag name.< character is not followed
by tag name or by a ! character.&#.&#x.<! is not followed
by --.</ is not followed
by tag name.{text} is not allowed.U+000D (CARRIAGE RETURN)
+ is not allowed.-- sequence
in a comment.$0.{text}.
There are more than one attributes with the same name in a tag. The document is non-conforming.
@@ -375,8 +487,36 @@<>) is not
+ allowed.</>) is not
+ allowed.{text} is not allowed./>) cannot be
used for this element.<!DOCTYPE , the
+ document type name must be specified.PUBLIC, no
+ oublic identifier is specified.; character.<!DOCTYPE, there
+ must be at least a white space character before the document type
+ name.SYSTEM, no
+ system identifier is specified.<?...>) cannot be used.<?...>) is not allowed in HTML
+ document.
Processing instructions (<?...?>),
including XML declaration (<?xml ...?>)
@@ -474,15 +658,135 @@
PUBLIC.SYSTEM.-->.DOCTYPE is not closed by a
+ > character.>
+ character.<{text}> is
+ not allowed after the body is closed.</{text}> is
+ not allowed after the body is closed.body is closed.<{text}> is
+ not allowed after the frameset is closed.</{text}> is
+ not allowed after the frameset is closed.frame is closed.$0 element cannot be
- inserted between head and body elements.{text} element cannot be
+ inserted between head and body
+ elements.A start tag appears after the head element is closed
but before the body element is opened.
@@ -490,22 +794,37 @@
DOCTYPE appears after any
- element or data character has been seen.A DOCTYPE appears after any element or data character
- has been seen. The document is non-conforming.
The DOCTYPE must be placed before any
- tag, reference, or data character. Only white space characters
- and comments can be inserted before the DOCTYPE.
<{text}> is
+ not allowed after the html is closed.</{text}> is
+ not allowed after the html is closed.html is closed.image element is
+ obsolete.HTML a elements cannot be nested.
@@ -517,8 +836,9 @@
<$0>
+ class="parse-error"
+ modules="HTML::Parser">
+ <{text}>
is not allowed in the body element.The start or end tag of an element, which @@ -528,8 +848,58 @@
button element cannot be
+ nested.<form> is
+ not allowed in a form element.<{text}> is
+ not allowed in a framset element.</{text}> is
+ not allowed in a frameset element.frameset element.<head>
is not allowed in the head element.DOCTYPE appears after any
+ element or data character has been seen.A DOCTYPE appears after any element or data character
+ has been seen. The document is non-conforming.
The DOCTYPE must be placed before any
+ tag, reference, or data character. Only white space characters
+ and comments can be inserted before the DOCTYPE.
nobr element cannot be
+ nested.{text} element is not
+ allowed in a noscript element in the
+ head element.</{text}>
+ appers before the noscript element is closed.noscript element is not closed
+ before the end of file.noscript element in the head
+ element.<{text}>
+ is not allowed in a select element.</{text}>
+ is not allowed in a select element.<$0>
+ class="parse-error"
+ modules="HTML::Parser">
+ <{text}>
is not allowed in a table element.The start or end tag of an element, which @@ -560,13 +1006,21 @@
table.</{text}>
+ is not allowed in a table element.table element, outside of the caption and cells.A data character appears in table. The document
- is non-conforming.
A non‐white‐space character appears in table.
+ The document is non-conforming.
In table, only table related elements
are allowed; any other element and data character must be contained in
@@ -576,8 +1030,16 @@
isindex element is
+ obsolete.tr
element is missing.DOCTYPE.$0 is not
+ class="parse-error"
+ modules="HTML::Parser">
+ {text} is not
closed.End tag of an element is not found before, for example, @@ -644,7 +1108,8 @@
<html> tag is not
the first start tag.<{text}> is
+ not allowed here.$0 is not
+ class="parse-error"
+ modules="HTML::Parser">
+ {text} is not
opened.An end tag appears though no element with the same name
@@ -1004,6 +1478,87 @@
The specified character encoding name is not registered to
+ IANA. Use of registered character encoding name
+ is a good practice to facilitate interoperability. WARNING: This error might be raised for
+ a registered character encoding name, since the character encoding
+ name database of the conformance checker is not complete yet. The specified character encoding name is a private name and
+ not registered to IANA. Use of registered character
+ encoding name is a good practice to facilitate interoperability. The attribute value must be a character encoding name. However,
+ the specified value is not a character encoding name syntactically.
+ The document is non‐conforming. Character encoding name is a string of ASCII
+ printable characters, up to 40 characters.Attribute Value Errors
+$0
+ is not registered.
+
+
+ EUC-TWEUC-TW is not registered. Unfortunately, there
+ is no registered name for that character encoding. Use
+ Big5 encoding with character encoding name Big5
+ if it is enough to represent the document.ISO-2022-JP-1ISO-2022-JP-1 is not registered, nevertheless
+ this character encoding name is documented in
+ RFC 2237. Use
+ ISO-2022-JP-2 instead, since that character encoding
+ is a superset of ISO-2022-JP-1.ISO-2022-JP-3, ISO-2022-JP-3-plane1ISO-2022-JP-2004 and
+ ISO-2022-JP-2004-plane1.ISO-2022-JP-2003,
+ ISO-2022-JP-2003-plane1ISO-2022-JP-2004 and
+ ISO-2022-JP-2004-plane1.ISO-2022-JP-2004,
+ ISO-2022-JP-2004-plane1UTF-8NUTF-8N is not registered. Character encoding
+ name UTF-8 represents UTF-8 encoding with or
+ without BOM.$0 is a private
+ character encoding name.
+
+ x-euc-jpEUC-JP for the Japanese EUC
+ character encoding.x-sjisShift_JIS for standard Shift encoding scheme of
+ JIS coded character set, or Windows-31J
+ for Microsoft standard character set as implemented by
+ Microsoft Windows.
$1
+ is different from document character encoding
+ $0.The specified character encoding name is different from + the character encoding of the document. The document + is non‐conforming.
+The element is in the call for implementation stage.
+ +Usually, using the element is safe. However, it is a new feature + so that it might not be implemented correctly. If it is found that + the feature is hard or impossible to implement, the feature + might be revised, or in some case it might be dropped.
+ +Elements defined by Atom 1.0 (IETF Proposed Standard), and XBL 2.0 + (W3C Candidate Recommendation) belong to this class.
+The element is in the last call for comments stage.
+ +The element is relatively mature, though the standardization + is not done yet. It may be used for experiments. Since it is a new + feature, it might not be implemented correctly or at all. If it is + found that the feature is hard or impossible to implement, the feature + might be revised or might be dropped.
+ +Elements defined by Web Forms 2.0 as well as some elements + defined by HTML5 belong to this class.
+The element is documented in a working or editor's draft + and not yet completed.
+ +The element should not be used for any practical purpose. + The feature might be drastically changed later or might be + entirely removed.
+ +Most of new elements defined by HTML5 belong to this class.
+The element is not part of any standard or draft the conformance + checker is aware of.
+ +The element should not be used for any practical purpose unless + there is really a standard that defines the element.
+innerHTML of HTML elementinnerHTML に値を設定する HTML 要素charset parametercharset 引数versionversionencodingencodingstandalonestandaloneBOM)BOM つき){text}){text})Important: This conformance checking service + is under development. The result above might be wrong.
+重要: この適合性検査サービスは開発中です。 + この結果は間違いかもしれません。
+Copyright +
Copyright ‐
Wakaba
<w@suika.fam.cx>.