// --------------------------------------------------------------------------
void
processor::on_start_tag_type (
icu::UnicodeString const& type
)
// --------------------------------------------------------------------------
{
element_info info;
if (!m_character_data.isEmpty())
{
character_data(m_character_data);
m_character_data.remove();
}
info.type = type;
info.child_counter = 0;
if (m_element_info.empty())
{
if (m_validating
&& !m_document_type.m_root_type.isEmpty()
&& type != m_document_type.m_root_type)
{
std::string msg;
msg += "Root element type does not match the document type.\n";
msg += "Document type name: ";
m_document_type.m_root_type.toUTF8String(msg);
msg += "\nRoot element type: ";
type.toUTF8String(msg);
throw semantic_error(msg);
}
info.xmlns[""] = uri();
info.base = m_base_iri;
info.space = false;
}
else
{
if (m_validating)
{
throw not_implemented("Element validity checking.");
}
++m_element_info.top().child_counter;
info.xmlns = m_element_info.top().xmlns;
info.base = m_element_info.top().base;
info.lang = m_element_info.top().lang;
info.space = m_element_info.top().space;
}
m_element_info.push(info);
m_sax_attrs.clear();
}
// --------------------------------------------------------------------------
void
processor::on_end_tag (
icu::UnicodeString const& type
)
// --------------------------------------------------------------------------
{
if (!m_character_data.isEmpty())
{
character_data(m_character_data);
m_character_data.remove();
}
if (type != m_element_info.top().type)
{
std::string msg, tree;
msg += "STag-ETag name mismatch.\n";
msg += "ETag name: ";
type.toUTF8String(msg);
while (!m_element_info.empty())
{
std::string tmp;
m_element_info.top().type.toUTF8String(tmp);
m_element_info.pop();
tree = "/" + tmp + tree;
}
msg += "\nElement tree: " + tree;
throw semantic_error(msg);
}
element_end();
if (!m_element_info.empty())
{
m_element_info.pop();
}
// Update current element's variables.
if (!m_element_info.empty())
{
m_element.assign(m_element_info.top().type, m_element_info.top().xmlns);
m_attributes.clear();
m_base_iri = m_element_info.top().base;
m_language = m_element_info.top().lang;
m_preserve_space = m_element_info.top().space;
}
}
// --------------------------------------------------------------------------
void
processor::on_attribute (
icu::UnicodeString const& name,
icu::UnicodeString&& value
)
// --------------------------------------------------------------------------
{
// Check for duplicates.
if (!m_sax_attrs.emplace(name, std::move(value)).second)
{
std::string msg, tree;
msg += "Duplicate attribute on an element.\n";
msg += "Attribute name: ";
name.toUTF8String(msg);
while (!m_element_info.empty())
{
std::string tmp;
m_element_info.top().type.toUTF8String(tmp);
m_element_info.pop();
tree = "/" + tmp + tree;
}
msg += "\nElement tree: " + tree;
throw semantic_error(msg);
}
/*
icu::UnicodeString normalized;
UChar32 chr;
int32_t const size = value.countChar32();
for (int32_t i=0; i<size; i=value.moveIndex32(i, 1))
{
chr = value.char32At(i);
if (chr == 0x20 || chr == 0x0D || chr == 0x0A || chr == 0x09)
{
normalized += 0x20;
}
else
if (chr == '&')
{
int32_t end = value.indexOf(';', i);
icu::UnicodeString name{value, i+1, end-i-1};
i = end;
if (name[0] == '#')
{
normalized += dereference_character(name.tempSubString(1));
}
else
{
if (on_reference(name, true))
{
icu::UnicodeString text;
m_buffers.top().pipe(text);
normalized += normalize_attvalue(text);
m_buffers.pop();
}
}
}
else
{
normalized += chr;
}
}
return normalized;
*/
if (m_validating)
{
throw not_implemented("Attribute validity checking.");
}
}
// --------------------------------------------------------------------------
void
processor::on_reference (
icu::UnicodeString const& name,
bool attvalue
)
// --------------------------------------------------------------------------
{
if (!attvalue && m_ref_history.empty() && m_auto_replace_general)
{
if (!m_character_data.isEmpty())
{
character_data(m_character_data);
m_character_data.remove();
}
reference(name);
}
// Pre-defined entities.
if (name == "lt")
{
icu::UnicodeString entity = "<";
m_buffers.emplace("<", new io::uistring(entity, false));
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
return;
}
else
if (name == "gt")
{
icu::UnicodeString entity = ">";
m_buffers.emplace(">", new io::uistring(entity, false));
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
return;
}
else
if (name == "amp")
{
icu::UnicodeString entity = "&";
m_buffers.emplace("&", new io::uistring(entity, false));
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
return;
}
else
if (name == "apos")
{
icu::UnicodeString entity = "'";
m_buffers.emplace("'", new io::uistring(entity, false));
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
return;
}
else
if (name == "quot")
{
icu::UnicodeString entity = '"';
m_buffers.emplace(""", new io::uistring(entity, false));
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
return;
}
std::pair<std::set<icu::UnicodeString>::iterator, bool> hist;
std::map<icu::UnicodeString, general_entity_declaration*>::iterator it;
// Look for the entity.
it = m_dtd.general_entities.find(name);
if (it == m_dtd.general_entities.end())
{
std::string msg;
msg += "Reference to undeclared general entity '";
name.toUTF8String(msg);
msg += "'.";
throw semantic_error(msg);
}
// Unparsed entity references are forbidden.
if (it->second->unparsed)
{
std::string msg;
msg += "Reference to an unparsed general entity '";
name.toUTF8String(msg);
msg += "'.";
throw semantic_error(msg);
}
// Check for recursive references.
hist = m_ref_history.insert(name);
if (!hist.second)
{
std::string msg;
msg += "Recursive reference to general entity '";
name.toUTF8String(msg);
msg += "'.";
throw semantic_error(msg);
}
// Process the entity.
bool const state = m_parsing_entity;
std::string nameutf8 = "&";
name.toUTF8String(nameutf8);
nameutf8 += ';';
m_parsing_entity = true;
if (!it->second->id.sys.isBogus() || !it->second->id.pub.isBogus())
{
if (attvalue)
{
std::string msg;
msg += "Reference to an external parsed general entity '";
name.toUTF8String(msg);
msg += "' in attribute value.";
throw semantic_error(msg);
}
io::input* input = nullptr;
std::string encoding;
resolve_id(it->second->id, input, encoding);
if (input == nullptr)
{
if (m_validating)
{
throw runtime_error(
"Could not dereference external parsed general entity."
);
}
}
else
{
size_t const size = m_buffers.size();
try
{
m_buffers.emplace(nameutf8, *input, true, encoding);
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
}
catch (...)
{
if (size < m_buffers.size())
{
m_buffers.pop();
}
delete input;
m_ref_history.erase(hist.first);
throw;
}
delete input;
}
}
else
{
m_buffers.emplace(
nameutf8, new io::uistring(it->second->text_or_notation, false)
);
if (attvalue)
{
parse_included_attvalue();
}
else
{
parse_content();
}
m_buffers.pop();
}
m_parsing_entity = state;
m_ref_history.erase(hist.first);
}
// --------------------------------------------------------------------------
void
processor::on_pe_reference (
icu::UnicodeString const& name,
bool entityvalue
)
// --------------------------------------------------------------------------
{
icu::UnicodeString text;
std::map<icu::UnicodeString, parameter_entity_declaration*>::iterator it;
std::pair<std::set<icu::UnicodeString>::iterator, bool> hist;
if (!m_parsing_entity && !entityvalue && m_ref_history.empty())
{
dtd_element e;
e.type = dtd_element::parameter_reference;
e.text = new icu::UnicodeString(name);
m_document_type.m_subset.emplace_back(std::move(e));
}
// Look for the entity.
it = m_dtd.parameter_entities.find(name);
if (it == m_dtd.parameter_entities.end())
{
if (m_validating)
{
std::string msg;
msg += "Reference to undeclared parameter entity '";
name.toUTF8String(msg);
msg += "'.";
throw semantic_error(msg);
}
else
{
m_dtd_stop = true;
return;
}
}
// Check for recursive references.
hist = m_ref_history.insert(name);
if (!hist.second)
{
std::string msg;
msg += "Recursive reference to parameter entity '";
name.toUTF8String(msg);
msg += "'.";
throw semantic_error(msg);
}
// Process the entity.
bool const state = m_parsing_entity;
std::string nameutf8 = "%";
name.toUTF8String(nameutf8);
nameutf8 += ';';
m_parsing_entity = true;
if (it->second->external)
{
io::input* input = nullptr;
std::string encoding;
resolve_id(it->second->id, input, encoding);
if (input == nullptr)
{
if (m_validating)
{
throw runtime_error(
"Could not dereference external parameter entity."
);
}
else
{
m_dtd_stop = true;
}
}
else
{
size_t const size = m_buffers.size();
try
{
if (entityvalue)
{
m_buffers.emplace(nameutf8, *input, true, encoding);
parse_included_entityvalue();
m_buffers.pop();
}
else
{
m_buffers.emplace(nameutf8, *input, true, encoding, true);
parse_ext_subset();
m_buffers.pop();
}
}
catch (...)
{
if (size < m_buffers.size())
{
m_buffers.pop();
}
delete input;
m_ref_history.erase(hist.first);
throw;
}
delete input;
}
}
else
{
// The literal value is stored as public ID.
if (entityvalue)
{
m_buffers.emplace(
nameutf8, new io::uistring(it->second->id.pub, false)
);
parse_included_entityvalue();
m_buffers.pop();
}
else
{
m_buffers.emplace(
nameutf8, new io::uistring(it->second->id.pub, false), false
);
parse_ext_subset();
m_buffers.pop();
}
}
m_parsing_entity = state;
m_ref_history.erase(hist.first);
}
