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LibWeb: Stop parsing after document.write at the insertion point

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If a call to `document.write` inserts an incomplete HTML tag, e.g.:

    document.write("<p");

we would previously continue parsing the document until we reached a
closing angle bracket. However, the spec states we should stop once we
reach the new insertion point.
This commit is contained in:
Timothy Flynn 2024-02-18 12:45:53 -05:00 • committed by Andreas Kling
parent 64dcd3f1f4
commit af57bd5cca
7 changed files with 62 additions and 10 deletions
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5
Userland/Libraries/LibWeb/HTML/Parser/HTMLTokenizer.cpp
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@ -248,7 +248,7 @@ HTMLToken::Position HTMLTokenizer::nth_last_position(size_t n)
return m_source_positions.at(m_source_positions.size() - 1 - n);
}
Optional<HTMLToken> HTMLTokenizer::next_token()
Optional<HTMLToken> HTMLTokenizer::next_token(StopAtInsertionPoint stop_at_insertion_point)
{
if (!m_source_positions.is_empty()) {
auto last_position = m_source_positions.last();
@ -263,6 +263,9 @@ _StartOfFunction:
return {};
for (;;) {
if (stop_at_insertion_point == StopAtInsertionPoint::Yes && is_insertion_point_reached())
return {};
auto current_input_character = next_code_point();
switch (m_state) {
// 13.2.5.1 Data state, https://html.spec.whatwg.org/multipage/parsing.html#data-state