| author | ymh <ymh.work@gmail.com> |
| Fri, 05 Sep 2025 18:52:52 +0200 | |
| changeset 22 | 8c2e4d02f4ef |
| permissions | -rw-r--r-- |
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<?php |
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/** |
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* HTML API: WP_HTML_Doctype_Info class |
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* |
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* @package WordPress |
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* @subpackage HTML-API |
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* @since 6.7.0 |
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*/ |
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/** |
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* Core class used by the HTML API to represent a DOCTYPE declaration. |
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* |
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* This class parses DOCTYPE tokens for the full parser in the HTML Processor. |
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* Most code interacting with HTML won't need to parse DOCTYPE declarations; |
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* the HTML Processor is one exception. Consult the HTML Processor for proper |
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* parsing of an HTML document. |
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* |
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* A DOCTYPE declaration may indicate its document compatibility mode, which impacts |
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* the structure of the following HTML as well as the behavior of CSS class selectors. |
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* There are three possible modes: |
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* |
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* - "no-quirks" and "limited-quirks" modes (also called "standards mode"). |
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* - "quirks" mode. |
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* |
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* These modes mostly determine whether CSS class name selectors match values in the |
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* HTML `class` attribute in an ASCII-case-insensitive way (quirks mode), or whether |
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* they match only when byte-for-byte identical (no-quirks mode). |
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* |
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* All HTML documents should start with the standard HTML5 DOCTYPE: `<!DOCTYPE html>`. |
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* |
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* > DOCTYPEs are required for legacy reasons. When omitted, browsers tend to use a different |
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* > rendering mode that is incompatible with some specifications. Including the DOCTYPE in a |
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* > document ensures that the browser makes a best-effort attempt at following the |
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* > relevant specifications. |
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* |
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* @see https://html.spec.whatwg.org/#the-doctype |
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* |
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* DOCTYPE declarations comprise four properties: a name, public identifier, system identifier, |
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* and an indication of which document compatability mode they would imply if an HTML parser |
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* hadn't already determined it from other information. |
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* |
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* @see https://html.spec.whatwg.org/#the-initial-insertion-mode |
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* |
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* Historically, the DOCTYPE declaration was used in SGML documents to instruct a parser how |
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* to interpret the various tags and entities within a document. Its role in HTML diverged |
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* from how it was used in SGML and no meaning should be back-read into HTML based on how it |
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* is used in SGML, XML, or XHTML documents. |
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* |
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* @see https://www.iso.org/standard/16387.html |
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* |
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* @since 6.7.0 |
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* |
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* @see WP_HTML_Processor |
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*/ |
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class WP_HTML_Doctype_Info { |
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/** |
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* Name of the DOCTYPE: should be "html" for HTML documents. |
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* |
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* This value should be considered "read only" and not modified. |
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* |
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* Historically the DOCTYPE name indicates name of the document's root element. |
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* |
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* <!DOCTYPE html> |
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* ╰──┴── name is "html". |
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* |
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* @see https://html.spec.whatwg.org/#tokenization |
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* |
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* @since 6.7.0 |
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* |
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* @var string|null |
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*/ |
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public $name = null; |
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/** |
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* Public identifier of the DOCTYPE. |
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* |
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* This value should be considered "read only" and not modified. |
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* |
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* The public identifier is optional and should not appear in HTML documents. |
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* A `null` value indicates that no public identifier was present in the DOCTYPE. |
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* |
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* Historically the presence of the public identifier indicated that a document |
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* was meant to be shared between computer systems and the value indicated to a |
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* knowledgeable parser how to find the relevant document type definition (DTD). |
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* |
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* <!DOCTYPE html PUBLIC "public id goes here in quotes"> |
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* │ │ ╰─── public identifier ─────╯ |
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* ╰──┴── name is "html". |
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* |
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* @see https://html.spec.whatwg.org/#tokenization |
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* |
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* @since 6.7.0 |
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* |
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* @var string|null |
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*/ |
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public $public_identifier = null; |
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/** |
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* System identifier of the DOCTYPE. |
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* |
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* This value should be considered "read only" and not modified. |
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* |
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* The system identifier is optional and should not appear in HTML documents. |
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* A `null` value indicates that no system identifier was present in the DOCTYPE. |
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* |
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* Historically the system identifier specified where a relevant document type |
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* declaration for the given document is stored and may be retrieved. |
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* |
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* <!DOCTYPE html SYSTEM "system id goes here in quotes"> |
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* │ │ ╰──── system identifier ────╯ |
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* ╰──┴── name is "html". |
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* |
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* If a public identifier were provided it would indicate to a knowledgeable |
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* parser how to interpret the system identifier. |
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* |
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* <!DOCTYPE html PUBLIC "public id goes here in quotes" "system id goes here in quotes"> |
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* │ │ ╰─── public identifier ─────╯ ╰──── system identifier ────╯ |
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* ╰──┴── name is "html". |
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* |
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* @see https://html.spec.whatwg.org/#tokenization |
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* |
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* @since 6.7.0 |
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* |
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* @var string|null |
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*/ |
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public $system_identifier = null; |
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/** |
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* Which document compatability mode this DOCTYPE declaration indicates. |
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* |
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* This value should be considered "read only" and not modified. |
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* |
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* When an HTML parser has not already set the document compatability mode, |
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* (e.g. "quirks" or "no-quirks" mode), it will infer if from the properties |
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* of the appropriate DOCTYPE declaration, if one exists. The DOCTYPE can |
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* indicate one of three possible document compatability modes: |
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* |
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* - "no-quirks" and "limited-quirks" modes (also called "standards" mode). |
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* - "quirks" mode (also called `CSS1Compat` mode). |
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* |
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* An appropriate DOCTYPE is one encountered in the "initial" insertion mode, |
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* before the HTML element has been opened and before finding any other |
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* DOCTYPE declaration tokens. |
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* |
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* @see https://html.spec.whatwg.org/#the-initial-insertion-mode |
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* |
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* @since 6.7.0 |
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* |
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* @var string One of "no-quirks", "limited-quirks", or "quirks". |
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*/ |
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public $indicated_compatability_mode; |
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|
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/** |
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* Constructor. |
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* |
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* This class should not be instantiated directly. |
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* Use the static {@see self::from_doctype_token} method instead. |
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* |
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* The arguments to this constructor correspond to the "DOCTYPE token" |
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* as defined in the HTML specification. |
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* |
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* > DOCTYPE tokens have a name, a public identifier, a system identifier, |
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* > and a force-quirks flag. When a DOCTYPE token is created, its name, public identifier, |
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* > and system identifier must be marked as missing (which is a distinct state from the |
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* > empty string), and the force-quirks flag must be set to off (its other state is on). |
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* |
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* @see https://html.spec.whatwg.org/multipage/parsing.html#tokenization |
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* |
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* @since 6.7.0 |
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* |
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* @param string|null $name Name of the DOCTYPE. |
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* @param string|null $public_identifier Public identifier of the DOCTYPE. |
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* @param string|null $system_identifier System identifier of the DOCTYPE. |
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* @param bool $force_quirks_flag Whether the force-quirks flag is set for the token. |
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*/ |
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private function __construct( |
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?string $name, |
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?string $public_identifier, |
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?string $system_identifier, |
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bool $force_quirks_flag |
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) { |
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$this->name = $name; |
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$this->public_identifier = $public_identifier; |
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$this->system_identifier = $system_identifier; |
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185 |
|
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/* |
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* > If the DOCTYPE token matches one of the conditions in the following list, |
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* > then set the Document to quirks mode: |
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*/ |
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190 |
|
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/* |
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* > The force-quirks flag is set to on. |
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*/ |
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if ( $force_quirks_flag ) { |
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$this->indicated_compatability_mode = 'quirks'; |
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return; |
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} |
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|
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/* |
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* Normative documents will contain the literal `<!DOCTYPE html>` with no |
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* public or system identifiers; short-circuit to avoid extra parsing. |
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*/ |
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if ( 'html' === $name && null === $public_identifier && null === $system_identifier ) { |
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$this->indicated_compatability_mode = 'no-quirks'; |
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return; |
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} |
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207 |
|
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/* |
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* > The name is not "html". |
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* |
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* The tokenizer must report the name in lower case even if provided in |
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* the document in upper case; thus no conversion is required here. |
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*/ |
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if ( 'html' !== $name ) { |
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$this->indicated_compatability_mode = 'quirks'; |
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return; |
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} |
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|
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/* |
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* Set up some variables to handle the rest of the conditions. |
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* |
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* > set...the public identifier...to...the empty string if the public identifier was missing. |
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* > set...the system identifier...to...the empty string if the system identifier was missing. |
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* > |
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* > The system identifier and public identifier strings must be compared... |
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* > in an ASCII case-insensitive manner. |
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* > |
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* > A system identifier whose value is the empty string is not considered missing |
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* > for the purposes of the conditions above. |
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*/ |
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$system_identifier_is_missing = null === $system_identifier; |
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$public_identifier = null === $public_identifier ? '' : strtolower( $public_identifier ); |
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$system_identifier = null === $system_identifier ? '' : strtolower( $system_identifier ); |
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/* |
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* > The public identifier is set to… |
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*/ |
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if ( |
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'-//w3o//dtd w3 html strict 3.0//en//' === $public_identifier || |
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'-/w3c/dtd html 4.0 transitional/en' === $public_identifier || |
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'html' === $public_identifier |
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) { |
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$this->indicated_compatability_mode = 'quirks'; |
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return; |
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} |
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/* |
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* > The system identifier is set to… |
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*/ |
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if ( 'http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd' === $system_identifier ) { |
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$this->indicated_compatability_mode = 'quirks'; |
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return; |
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} |
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|
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/* |
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* All of the following conditions depend on matching the public identifier. |
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* If the public identifier is empty, none of the following conditions will match. |
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*/ |
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if ( '' === $public_identifier ) { |
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$this->indicated_compatability_mode = 'no-quirks'; |
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return; |
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} |
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|
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/* |
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* > The public identifier starts with… |
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* |
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* @todo Optimize this matching. It shouldn't be a large overall performance issue, |
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* however, as only a single DOCTYPE declaration token should ever be parsed, |
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* and normative documents will have exited before reaching this condition. |
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*/ |
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if ( |
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str_starts_with( $public_identifier, '+//silmaril//dtd html pro v0r11 19970101//' ) || |
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str_starts_with( $public_identifier, '-//as//dtd html 3.0 aswedit + extensions//' ) || |
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str_starts_with( $public_identifier, '-//advasoft ltd//dtd html 3.0 aswedit + extensions//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.0 level 1//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.0 level 2//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.0 strict level 1//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.0 strict level 2//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.0 strict//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.0//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 2.1e//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 3.0//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 3.2 final//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 3.2//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html 3//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html level 0//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html level 1//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html level 2//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html level 3//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html strict level 0//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html strict level 1//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html strict level 2//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html strict level 3//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html strict//' ) || |
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str_starts_with( $public_identifier, '-//ietf//dtd html//' ) || |
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str_starts_with( $public_identifier, '-//metrius//dtd metrius presentational//' ) || |
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str_starts_with( $public_identifier, '-//microsoft//dtd internet explorer 2.0 html strict//' ) || |
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298 |
str_starts_with( $public_identifier, '-//microsoft//dtd internet explorer 2.0 html//' ) || |
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str_starts_with( $public_identifier, '-//microsoft//dtd internet explorer 2.0 tables//' ) || |
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str_starts_with( $public_identifier, '-//microsoft//dtd internet explorer 3.0 html strict//' ) || |
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str_starts_with( $public_identifier, '-//microsoft//dtd internet explorer 3.0 html//' ) || |
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str_starts_with( $public_identifier, '-//microsoft//dtd internet explorer 3.0 tables//' ) || |
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303 |
str_starts_with( $public_identifier, '-//netscape comm. corp.//dtd html//' ) || |
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Update WordPress to latest version (6.7)
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304 |
str_starts_with( $public_identifier, '-//netscape comm. corp.//dtd strict html//' ) || |
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Update WordPress to latest version (6.7)
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305 |
str_starts_with( $public_identifier, "-//o'reilly and associates//dtd html 2.0//" ) || |
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Update WordPress to latest version (6.7)
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306 |
str_starts_with( $public_identifier, "-//o'reilly and associates//dtd html extended 1.0//" ) || |
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307 |
str_starts_with( $public_identifier, "-//o'reilly and associates//dtd html extended relaxed 1.0//" ) || |
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Update WordPress to latest version (6.7)
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308 |
str_starts_with( $public_identifier, '-//sq//dtd html 2.0 hotmetal + extensions//' ) || |
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Update WordPress to latest version (6.7)
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309 |
str_starts_with( $public_identifier, '-//softquad software//dtd hotmetal pro 6.0::19990601::extensions to html 4.0//' ) || |
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Update WordPress to latest version (6.7)
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310 |
str_starts_with( $public_identifier, '-//softquad//dtd hotmetal pro 4.0::19971010::extensions to html 4.0//' ) || |
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Update WordPress to latest version (6.7)
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311 |
str_starts_with( $public_identifier, '-//spyglass//dtd html 2.0 extended//' ) || |
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Update WordPress to latest version (6.7)
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312 |
str_starts_with( $public_identifier, '-//sun microsystems corp.//dtd hotjava html//' ) || |
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Update WordPress to latest version (6.7)
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313 |
str_starts_with( $public_identifier, '-//sun microsystems corp.//dtd hotjava strict html//' ) || |
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Update WordPress to latest version (6.7)
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314 |
str_starts_with( $public_identifier, '-//w3c//dtd html 3 1995-03-24//' ) || |
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Update WordPress to latest version (6.7)
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315 |
str_starts_with( $public_identifier, '-//w3c//dtd html 3.2 draft//' ) || |
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Update WordPress to latest version (6.7)
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316 |
str_starts_with( $public_identifier, '-//w3c//dtd html 3.2 final//' ) || |
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Update WordPress to latest version (6.7)
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317 |
str_starts_with( $public_identifier, '-//w3c//dtd html 3.2//' ) || |
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Update WordPress to latest version (6.7)
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318 |
str_starts_with( $public_identifier, '-//w3c//dtd html 3.2s draft//' ) || |
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Update WordPress to latest version (6.7)
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319 |
str_starts_with( $public_identifier, '-//w3c//dtd html 4.0 frameset//' ) || |
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Update WordPress to latest version (6.7)
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320 |
str_starts_with( $public_identifier, '-//w3c//dtd html 4.0 transitional//' ) || |
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Update WordPress to latest version (6.7)
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321 |
str_starts_with( $public_identifier, '-//w3c//dtd html experimental 19960712//' ) || |
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Update WordPress to latest version (6.7)
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322 |
str_starts_with( $public_identifier, '-//w3c//dtd html experimental 970421//' ) || |
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Update WordPress to latest version (6.7)
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323 |
str_starts_with( $public_identifier, '-//w3c//dtd w3 html//' ) || |
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Update WordPress to latest version (6.7)
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324 |
str_starts_with( $public_identifier, '-//w3o//dtd w3 html 3.0//' ) || |
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Update WordPress to latest version (6.7)
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325 |
str_starts_with( $public_identifier, '-//webtechs//dtd mozilla html 2.0//' ) || |
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Update WordPress to latest version (6.7)
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326 |
str_starts_with( $public_identifier, '-//webtechs//dtd mozilla html//' ) |
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Update WordPress to latest version (6.7)
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327 |
) { |
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Update WordPress to latest version (6.7)
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parents:
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|
328 |
$this->indicated_compatability_mode = 'quirks'; |
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Update WordPress to latest version (6.7)
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329 |
return; |
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Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
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|
330 |
} |
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8c2e4d02f4ef
Update WordPress to latest version (6.7)
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parents:
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|
331 |
|
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332 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
333 |
* > The system identifier is missing and the public identifier starts with… |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
334 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
335 |
if ( |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
336 |
$system_identifier_is_missing && ( |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
337 |
str_starts_with( $public_identifier, '-//w3c//dtd html 4.01 frameset//' ) || |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
338 |
str_starts_with( $public_identifier, '-//w3c//dtd html 4.01 transitional//' ) |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
339 |
) |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
340 |
) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
341 |
$this->indicated_compatability_mode = 'quirks'; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
342 |
return; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
343 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
344 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
345 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
346 |
* > Otherwise, if the DOCTYPE token matches one of the conditions in |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
347 |
* > the following list, then set the Document to limited-quirks mode. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
348 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
349 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
350 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
351 |
* > The public identifier starts with… |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
352 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
353 |
if ( |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
354 |
str_starts_with( $public_identifier, '-//w3c//dtd xhtml 1.0 frameset//' ) || |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
355 |
str_starts_with( $public_identifier, '-//w3c//dtd xhtml 1.0 transitional//' ) |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
356 |
) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
357 |
$this->indicated_compatability_mode = 'limited-quirks'; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
358 |
return; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
359 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
360 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
361 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
362 |
* > The system identifier is not missing and the public identifier starts with… |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
363 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
364 |
if ( |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
365 |
! $system_identifier_is_missing && ( |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
366 |
str_starts_with( $public_identifier, '-//w3c//dtd html 4.01 frameset//' ) || |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
367 |
str_starts_with( $public_identifier, '-//w3c//dtd html 4.01 transitional//' ) |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
368 |
) |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
369 |
) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
370 |
$this->indicated_compatability_mode = 'limited-quirks'; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
371 |
return; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
372 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
373 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
374 |
$this->indicated_compatability_mode = 'no-quirks'; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
375 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
376 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
377 |
/** |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
378 |
* Creates a WP_HTML_Doctype_Info instance by parsing a raw DOCTYPE declaration token. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
379 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
380 |
* Use this method to parse a DOCTYPE declaration token and get access to its properties |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
381 |
* via the returned WP_HTML_Doctype_Info class instance. The provided input must parse |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
382 |
* properly as a DOCTYPE declaration, though it must not represent a valid DOCTYPE. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
383 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
384 |
* Example: |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
385 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
386 |
* // Normative HTML DOCTYPE declaration. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
387 |
* $doctype = WP_HTML_Doctype_Info::from_doctype_token( '<!DOCTYPE html>' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
388 |
* 'no-quirks' === $doctype->indicated_compatability_mode; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
389 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
390 |
* // A nonsensical DOCTYPE is still valid, and will indicate "quirks" mode. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
391 |
* $doctype = WP_HTML_Doctype_Info::from_doctype_token( '<!doctypeJSON SILLY "nonsense\'>' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
392 |
* 'quirks' === $doctype->indicated_compatability_mode; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
393 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
394 |
* // Textual quirks present in raw HTML are handled appropriately. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
395 |
* $doctype = WP_HTML_Doctype_Info::from_doctype_token( "<!DOCTYPE\nhtml\n>" ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
396 |
* 'no-quirks' === $doctype->indicated_compatability_mode; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
397 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
398 |
* // Anything other than a proper DOCTYPE declaration token fails to parse. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
399 |
* null === WP_HTML_Doctype_Info::from_doctype_token( ' <!DOCTYPE>' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
400 |
* null === WP_HTML_Doctype_Info::from_doctype_token( '<!DOCTYPE ><p>' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
401 |
* null === WP_HTML_Doctype_Info::from_doctype_token( '<!TYPEDOC>' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
402 |
* null === WP_HTML_Doctype_Info::from_doctype_token( 'html' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
403 |
* null === WP_HTML_Doctype_Info::from_doctype_token( '<?xml version="1.0" encoding="UTF-8" ?>' ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
404 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
405 |
* @since 6.7.0 |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
406 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
407 |
* @param string $doctype_html The complete raw DOCTYPE HTML string, e.g. `<!DOCTYPE html>`. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
408 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
409 |
* @return WP_HTML_Doctype_Info|null A WP_HTML_Doctype_Info instance will be returned if the |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
410 |
* provided DOCTYPE HTML is a valid DOCTYPE. Otherwise, null. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
411 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
412 |
public static function from_doctype_token( string $doctype_html ): ?self { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
413 |
$doctype_name = null; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
414 |
$doctype_public_id = null; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
415 |
$doctype_system_id = null; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
416 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
417 |
$end = strlen( $doctype_html ) - 1; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
418 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
419 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
420 |
* This parser combines the rules for parsing DOCTYPE tokens found in the HTML |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
421 |
* specification for the DOCTYPE related tokenizer states. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
422 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
423 |
* @see https://html.spec.whatwg.org/#doctype-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
424 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
425 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
426 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
427 |
* - Valid DOCTYPE HTML token must be at least `<!DOCTYPE>` assuming a complete token not |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
428 |
* ending in end-of-file. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
429 |
* - It must start with an ASCII case-insensitive match for `<!DOCTYPE`. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
430 |
* - The only occurrence of `>` must be the final byte in the HTML string. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
431 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
432 |
if ( |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
433 |
$end < 9 || |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
434 |
0 !== substr_compare( $doctype_html, '<!DOCTYPE', 0, 9, true ) |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
435 |
) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
436 |
return null; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
437 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
438 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
439 |
$at = 9; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
440 |
// Is there one and only one `>`? |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
441 |
if ( '>' !== $doctype_html[ $end ] || ( strcspn( $doctype_html, '>', $at ) + $at ) < $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
442 |
return null; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
443 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
444 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
445 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
446 |
* Perform newline normalization and ensure the $end value is correct after normalization. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
447 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
448 |
* @see https://html.spec.whatwg.org/#preprocessing-the-input-stream |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
449 |
* @see https://infra.spec.whatwg.org/#normalize-newlines |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
450 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
451 |
$doctype_html = str_replace( "\r\n", "\n", $doctype_html ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
452 |
$doctype_html = str_replace( "\r", "\n", $doctype_html ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
453 |
$end = strlen( $doctype_html ) - 1; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
454 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
455 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
456 |
* In this state, the doctype token has been found and its "content" optionally including the |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
457 |
* name, public identifier, and system identifier is between the current position and the end. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
458 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
459 |
* "<!DOCTYPE...declaration...>" |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
460 |
* ╰─ $at ╰─ $end |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
461 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
462 |
* It's also possible that the declaration part is empty. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
463 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
464 |
* â•â”€ $at |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
465 |
* "<!DOCTYPE>" |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
466 |
* ╰─ $end |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
467 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
468 |
* Rules for parsing ">" which terminates the DOCTYPE do not need to be considered as they |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
469 |
* have been handled above in the condition that the provided DOCTYPE HTML must contain |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
470 |
* exactly one ">" character in the final position. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
471 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
472 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
473 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
474 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
475 |
* Parsing effectively begins in "Before DOCTYPE name state". Ignore whitespace and |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
476 |
* proceed to the next state. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
477 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
478 |
* @see https://html.spec.whatwg.org/#before-doctype-name-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
479 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
480 |
$at += strspn( $doctype_html, " \t\n\f\r", $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
481 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
482 |
if ( $at >= $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
483 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
484 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
485 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
486 |
$name_length = strcspn( $doctype_html, " \t\n\f\r", $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
487 |
$doctype_name = str_replace( "\0", "\u{FFFD}", strtolower( substr( $doctype_html, $at, $name_length ) ) ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
488 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
489 |
$at += $name_length; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
490 |
$at += strspn( $doctype_html, " \t\n\f\r", $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
491 |
if ( $at >= $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
492 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, false ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
493 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
494 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
495 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
496 |
* "After DOCTYPE name state" |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
497 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
498 |
* Find a case-insensitive match for "PUBLIC" or "SYSTEM" at this point. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
499 |
* Otherwise, set force-quirks and enter bogus DOCTYPE state (skip the rest of the doctype). |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
500 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
501 |
* @see https://html.spec.whatwg.org/#after-doctype-name-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
502 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
503 |
if ( $at + 6 >= $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
504 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
505 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
506 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
507 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
508 |
* > If the six characters starting from the current input character are an ASCII |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
509 |
* > case-insensitive match for the word "PUBLIC", then consume those characters |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
510 |
* > and switch to the after DOCTYPE public keyword state. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
511 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
512 |
if ( 0 === substr_compare( $doctype_html, 'PUBLIC', $at, 6, true ) ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
513 |
$at += 6; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
514 |
$at += strspn( $doctype_html, " \t\n\f\r", $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
515 |
if ( $at >= $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
516 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
517 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
518 |
goto parse_doctype_public_identifier; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
519 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
520 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
521 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
522 |
* > Otherwise, if the six characters starting from the current input character are an ASCII |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
523 |
* > case-insensitive match for the word "SYSTEM", then consume those characters and switch |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
524 |
* > to the after DOCTYPE system keyword state. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
525 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
526 |
if ( 0 === substr_compare( $doctype_html, 'SYSTEM', $at, 6, true ) ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
527 |
$at += 6; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
528 |
$at += strspn( $doctype_html, " \t\n\f\r", $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
529 |
if ( $at >= $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
530 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
531 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
532 |
goto parse_doctype_system_identifier; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
533 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
534 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
535 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
536 |
* > Otherwise, this is an invalid-character-sequence-after-doctype-name parse error. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
537 |
* > Set the current DOCTYPE token's force-quirks flag to on. Reconsume in the bogus |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
538 |
* > DOCTYPE state. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
539 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
540 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
541 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
542 |
parse_doctype_public_identifier: |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
543 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
544 |
* The parser should enter "DOCTYPE public identifier (double-quoted) state" or |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
545 |
* "DOCTYPE public identifier (single-quoted) state" by finding one of the valid quotes. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
546 |
* Anything else forces quirks mode and ignores the rest of the contents. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
547 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
548 |
* @see https://html.spec.whatwg.org/#doctype-public-identifier-(double-quoted)-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
549 |
* @see https://html.spec.whatwg.org/#doctype-public-identifier-(single-quoted)-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
550 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
551 |
$closer_quote = $doctype_html[ $at ]; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
552 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
553 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
554 |
* > This is a missing-quote-before-doctype-public-identifier parse error. Set the |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
555 |
* > current DOCTYPE token's force-quirks flag to on. Reconsume in the bogus DOCTYPE state. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
556 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
557 |
if ( '"' !== $closer_quote && "'" !== $closer_quote ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
558 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
559 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
560 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
561 |
++$at; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
562 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
563 |
$identifier_length = strcspn( $doctype_html, $closer_quote, $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
564 |
$doctype_public_id = str_replace( "\0", "\u{FFFD}", substr( $doctype_html, $at, $identifier_length ) ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
565 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
566 |
$at += $identifier_length; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
567 |
if ( $at >= $end || $closer_quote !== $doctype_html[ $at ] ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
568 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
569 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
570 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
571 |
++$at; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
572 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
573 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
574 |
* "Between DOCTYPE public and system identifiers state" |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
575 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
576 |
* Advance through whitespace between public and system identifiers. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
577 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
578 |
* @see https://html.spec.whatwg.org/#between-doctype-public-and-system-identifiers-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
579 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
580 |
$at += strspn( $doctype_html, " \t\n\f\r", $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
581 |
if ( $at >= $end ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
582 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, false ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
583 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
584 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
585 |
parse_doctype_system_identifier: |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
586 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
587 |
* The parser should enter "DOCTYPE system identifier (double-quoted) state" or |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
588 |
* "DOCTYPE system identifier (single-quoted) state" by finding one of the valid quotes. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
589 |
* Anything else forces quirks mode and ignores the rest of the contents. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
590 |
* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
591 |
* @see https://html.spec.whatwg.org/#doctype-system-identifier-(double-quoted)-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
592 |
* @see https://html.spec.whatwg.org/#doctype-system-identifier-(single-quoted)-state |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
593 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
594 |
$closer_quote = $doctype_html[ $at ]; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
595 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
596 |
/* |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
597 |
* > This is a missing-quote-before-doctype-system-identifier parse error. Set the |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
598 |
* > current DOCTYPE token's force-quirks flag to on. Reconsume in the bogus DOCTYPE state. |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
599 |
*/ |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
600 |
if ( '"' !== $closer_quote && "'" !== $closer_quote ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
601 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
602 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
603 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
604 |
++$at; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
605 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
606 |
$identifier_length = strcspn( $doctype_html, $closer_quote, $at, $end - $at ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
607 |
$doctype_system_id = str_replace( "\0", "\u{FFFD}", substr( $doctype_html, $at, $identifier_length ) ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
608 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
609 |
$at += $identifier_length; |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
610 |
if ( $at >= $end || $closer_quote !== $doctype_html[ $at ] ) { |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
611 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, true ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
612 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
613 |
|
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
614 |
return new self( $doctype_name, $doctype_public_id, $doctype_system_id, false ); |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
615 |
} |
|
8c2e4d02f4ef
Update WordPress to latest version (6.7)
ymh <ymh.work@gmail.com>
parents:
diff
changeset
|
616 |
} |