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LibWeb: Support named character references (e.g "&")

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This commit is contained in:
Andreas Kling 2020-05-28 11:44:19 +02:00
parent ca6e361279
commit 5c35f3c9ba
4 changed files with 2385 additions and 4 deletions
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49
Libraries/LibWeb/Parser/HTMLTokenizer.cpp
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@ -24,6 +24,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibWeb/Parser/Entities.h>
#include <LibWeb/Parser/HTMLToken.h>
#include <LibWeb/Parser/HTMLTokenizer.h>
#include <ctype.h>
@ -1185,15 +1186,55 @@ _StartOfFunction:
BEGIN_STATE(NamedCharacterReference)
{
// FIXME:This is not the right way to implement this state!!
auto match = HTML::codepoints_from_entity(m_input.substring_view(m_cursor - 1, m_input.length() - m_cursor + 1));
if (match.has_value()) {
m_cursor += match.value().entity.length();
for (auto ch : match.value().entity)
m_temporary_buffer.append(ch);
if (consumed_as_part_of_an_attribute() && match.value().entity.ends_with(';')) {
auto next_codepoint = peek_codepoint(0);
if (next_codepoint.has_value() && next_codepoint.value() == '=') {
FLUSH_CODEPOINTS_CONSUMED_AS_A_CHARACTER_REFERENCE;
SWITCH_TO_RETURN_STATE;
}
}
if (!match.value().entity.ends_with(';')) {
TODO();
}
m_temporary_buffer.clear();
m_temporary_buffer.append(match.value().codepoints);
FLUSH_CODEPOINTS_CONSUMED_AS_A_CHARACTER_REFERENCE;
SWITCH_TO_RETURN_STATE;
} else {
FLUSH_CODEPOINTS_CONSUMED_AS_A_CHARACTER_REFERENCE;
SWITCH_TO(AmbiguousAmpersand);
}
}
END_STATE
BEGIN_STATE(AmbiguousAmpersand)
{
ON_ASCII_ALPHANUMERIC
{
if (consumed_as_part_of_an_attribute()) {
m_current_token.m_tag.attributes.last().value_builder.append(current_input_character.value());
continue;
} else {
EMIT_CURRENT_CHARACTER;
}
}
ON(';')
{
SWITCH_TO_RETURN_STATE;
TODO();
}
ANYTHING_ELSE
{
dbg() << "NamedCharacterReference: '" << (char)current_input_character.value() << "'";
continue;
RECONSUME_IN_RETURN_STATE;
}
}
END_STATE