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LibWeb: Add spec comments to HTML parser "in row" insertion mode

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This commit is contained in:
Andreas Kling 2023-07-03 08:34:13 +02:00
parent 8c8b24d877
commit bac500b9ad
1 changed files with 46 additions and 0 deletions
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46
Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp
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@ -2473,60 +2473,106 @@ void HTMLParser::clear_the_stack_back_to_a_table_body_context()
VERIFY(m_parsing_fragment);
}
// https://html.spec.whatwg.org/multipage/parsing.html#parsing-main-intr
void HTMLParser::handle_in_row(HTMLToken& token)
{
// A start tag whose tag name is one of: "th", "td"
if (token.is_start_tag() && token.tag_name().is_one_of(HTML::TagNames::th, HTML::TagNames::td)) {
// Clear the stack back to a table row context.
clear_the_stack_back_to_a_table_row_context();
// Insert an HTML element for the token, then switch the insertion mode to "in cell".
(void)insert_html_element(token);
m_insertion_mode = InsertionMode::InCell;
// Insert a marker at the end of the list of active formatting elements.
m_list_of_active_formatting_elements.add_marker();
return;
}
// An end tag whose tag name is "tr"
if (token.is_end_tag() && token.tag_name() == HTML::TagNames::tr) {
// If the stack of open elements does not have a tr element in table scope, this is a parse error; ignore the token.
if (!m_stack_of_open_elements.has_in_table_scope(HTML::TagNames::tr)) {
log_parse_error();
return;
}
// Otherwise:
// Clear the stack back to a table row context.
clear_the_stack_back_to_a_table_row_context();
// Pop the current node (which will be a tr element) from the stack of open elements.
(void)m_stack_of_open_elements.pop();
// Switch the insertion mode to "in table body".
m_insertion_mode = InsertionMode::InTableBody;
return;
}
// A start tag whose tag name is one of: "caption", "col", "colgroup", "tbody", "tfoot", "thead", "tr"
// An end tag whose tag name is "table"
if ((token.is_start_tag() && token.tag_name().is_one_of(HTML::TagNames::caption, HTML::TagNames::col, HTML::TagNames::colgroup, HTML::TagNames::tbody, HTML::TagNames::tfoot, HTML::TagNames::thead, HTML::TagNames::tr))
|| (token.is_end_tag() && token.tag_name() == HTML::TagNames::table)) {
// If the stack of open elements does not have a tr element in table scope, this is a parse error; ignore the token.
if (!m_stack_of_open_elements.has_in_table_scope(HTML::TagNames::tr)) {
log_parse_error();
return;
}
// Otherwise:
// Clear the stack back to a table row context.
clear_the_stack_back_to_a_table_row_context();
// Pop the current node (which will be a tr element) from the stack of open elements.
(void)m_stack_of_open_elements.pop();
// Switch the insertion mode to "in table body".
m_insertion_mode = InsertionMode::InTableBody;
// Reprocess the token.
process_using_the_rules_for(m_insertion_mode, token);
return;
}
// An end tag whose tag name is one of: "tbody", "tfoot", "thead"
if (token.is_end_tag() && token.tag_name().is_one_of(HTML::TagNames::tbody, HTML::TagNames::tfoot, HTML::TagNames::thead)) {
// If the stack of open elements does not have an element in table scope that is an HTML element with the same tag name as the token, this is a parse error; ignore the token.
if (!m_stack_of_open_elements.has_in_table_scope(token.tag_name())) {
log_parse_error();
return;
}
// If the stack of open elements does not have a tr element in table scope, ignore the token.
if (!m_stack_of_open_elements.has_in_table_scope(HTML::TagNames::tr)) {
return;
}
// Otherwise:
// Clear the stack back to a table row context.
clear_the_stack_back_to_a_table_row_context();
// Pop the current node (which will be a tr element) from the stack of open elements.
(void)m_stack_of_open_elements.pop();
// Switch the insertion mode to "in table body".
m_insertion_mode = InsertionMode::InTableBody;
// Reprocess the token.
process_using_the_rules_for(m_insertion_mode, token);
return;
}
// An end tag whose tag name is one of: "body", "caption", "col", "colgroup", "html", "td", "th"
if (token.is_end_tag() && token.tag_name().is_one_of(HTML::TagNames::body, HTML::TagNames::caption, HTML::TagNames::col, HTML::TagNames::colgroup, HTML::TagNames::html, HTML::TagNames::td, HTML::TagNames::th)) {
// Parse error. Ignore the token.
log_parse_error();
return;
}
// Anything else:
// Process the token using the rules for the "in table" insertion mode.
process_using_the_rules_for(InsertionMode::InTable, token);
}