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LibWeb: Add spec comments to the "in head noscript" parser state

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Andreas Kling 2024-11-03 19:38:21 +01:00 • committed by Andreas Kling
commit ebce483278
Notes: github-actions[bot] 2024-11-03 19:33:26 +00:00
1 changed files with 32 additions and 2 deletions
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34
Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp
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@ -1089,42 +1089,72 @@ AnythingElse:
process_using_the_rules_for(m_insertion_mode, token); process_using_the_rules_for(m_insertion_mode, token);
} }
// https://html.spec.whatwg.org/multipage/parsing.html#parsing-main-inheadnoscript
void HTMLParser::handle_in_head_noscript(HTMLToken& token) void HTMLParser::handle_in_head_noscript(HTMLToken& token)
{ {
// -> A DOCTYPE token
if (token.is_doctype()) { if (token.is_doctype()) {
// Parse error. Ignore the token.
log_parse_error(); log_parse_error();
return; return;
} }
// -> A start tag whose tag name is "html"
if (token.is_start_tag() && token.tag_name() == HTML::TagNames::html) { if (token.is_start_tag() && token.tag_name() == HTML::TagNames::html) {
// Process the token using the rules for the "in body" insertion mode.
process_using_the_rules_for(InsertionMode::InBody, token); process_using_the_rules_for(InsertionMode::InBody, token);
return; return;
} }
// -> An end tag whose tag name is "noscript"
if (token.is_end_tag() && token.tag_name() == HTML::TagNames::noscript) { if (token.is_end_tag() && token.tag_name() == HTML::TagNames::noscript) {
// Pop the current node (which will be a noscript element) from the stack of open elements;
// the new current node will be a head element.
(void)m_stack_of_open_elements.pop(); (void)m_stack_of_open_elements.pop();
// Switch the insertion mode to "in head".
m_insertion_mode = InsertionMode::InHead; m_insertion_mode = InsertionMode::InHead;
return; return;
} }
if (token.is_parser_whitespace() || token.is_comment() || (token.is_start_tag() && token.tag_name().is_one_of(HTML::TagNames::basefont, HTML::TagNames::bgsound, HTML::TagNames::link, HTML::TagNames::meta, HTML::TagNames::noframes, HTML::TagNames::style))) { // -> A character token that is one of U+0009 CHARACTER TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF), U+000D CARRIAGE RETURN (CR), or U+0020 SPACE
// -> A comment token
// -> A start tag whose tag name is one of: "basefont", "bgsound", "link", "meta", "noframes", "style"
if (token.is_parser_whitespace()
|| token.is_comment()
|| (token.is_start_tag() && token.tag_name().is_one_of(HTML::TagNames::basefont, HTML::TagNames::bgsound, HTML::TagNames::link, HTML::TagNames::meta, HTML::TagNames::noframes, HTML::TagNames::style))) {
// Process the token using the rules for the "in head" insertion mode.
process_using_the_rules_for(InsertionMode::InHead, token); process_using_the_rules_for(InsertionMode::InHead, token);
return; return;
} }
// -> An end tag whose tag name is "br"
if (token.is_end_tag() && token.tag_name() == HTML::TagNames::br) { if (token.is_end_tag() && token.tag_name() == HTML::TagNames::br) {
// Act as described in the "anything else" entry below.
goto AnythingElse; goto AnythingElse;
} }
if (token.is_start_tag() && token.tag_name().is_one_of(HTML::TagNames::head, HTML::TagNames::noscript)) { // -> A start tag whose tag name is one of: "head", "noscript"
// -> Any other end tag
if ((token.is_start_tag() && token.tag_name().is_one_of(HTML::TagNames::head, HTML::TagNames::noscript))
|| token.is_end_tag()) {
// Parse error. Ignore the token.
log_parse_error(); log_parse_error();
return; return;
} }
// -> Anything else
AnythingElse: AnythingElse:
// Parse error.
log_parse_error(); log_parse_error();
// Pop the current node (which will be a noscript element) from the stack of open elements; the new current node will be a head element.
(void)m_stack_of_open_elements.pop(); (void)m_stack_of_open_elements.pop();
// Switch the insertion mode to "in head".
m_insertion_mode = InsertionMode::InHead; m_insertion_mode = InsertionMode::InHead;
// Reprocess the token.
process_using_the_rules_for(m_insertion_mode, token); process_using_the_rules_for(m_insertion_mode, token);
} }