attribute.cxx

SP是一个基于GNU C++编译器

      valid = 0;
    }
  }
  if (valid)
    return new EntityAttributeSemantics(entities);
  else
    return 0;
}

DeclaredValue *EntityDeclaredValue::copy() const
{
  return new EntityDeclaredValue(*this);
}

IdDeclaredValue::IdDeclaredValue()
: TokenizedDeclaredValue(name, 0)
{
}

Boolean IdDeclaredValue::isId() const
{
  return 1;
}

AttributeSemantics *
IdDeclaredValue::makeSemantics(const TokenizedAttributeValue &value,
			       AttributeContext &context,
			       const StringC &,
			       unsigned &,
			       unsigned &) const
{
  Location prevLoc;
  if (!context.defineId(value.string(), value.tokenLocation(0), prevLoc)) {
    context.setNextLocation(value.tokenLocation(0));
    context.message(ParserMessages::duplicateId,
		    StringMessageArg(value.string()),
		    prevLoc);
  }
  return 0;
}

void IdDeclaredValue::buildDesc(AttributeDefinitionDesc &desc) const
{
  desc.declaredValue = AttributeDefinitionDesc::id;
}

DeclaredValue *IdDeclaredValue::copy() const
{
  return new IdDeclaredValue(*this);
}

IdrefDeclaredValue::IdrefDeclaredValue(Boolean isList)
: TokenizedDeclaredValue(name, isList)
{
}

AttributeSemantics *
IdrefDeclaredValue::makeSemantics(const TokenizedAttributeValue &value,
				  AttributeContext &context,
				  const StringC &,
				  unsigned &nIdrefs,
				  unsigned &) const
{
  size_t nTokens = value.nTokens();
  nIdrefs += nTokens;
  for (size_t i = 0; i < nTokens; i++)
    context.noteIdref(value.token(i), value.tokenLocation(i));
  return 0;
}

Boolean IdrefDeclaredValue::isIdref() const
{
  return 1;
}

void IdrefDeclaredValue::buildDesc(AttributeDefinitionDesc &desc) const
{
  TokenizedDeclaredValue::buildDesc(desc);
  if (desc.declaredValue == AttributeDefinitionDesc::name)
    desc.declaredValue = AttributeDefinitionDesc::idref;
  else
    desc.declaredValue = AttributeDefinitionDesc::idrefs;
}

DeclaredValue *IdrefDeclaredValue::copy() const
{
  return new IdrefDeclaredValue(*this);
}


AttributeDefinition::AttributeDefinition(const StringC &name,
					 DeclaredValue *value)
: name_(name), declaredValue_(value)
{
}

AttributeDefinition::~AttributeDefinition()
{
}

AttributeValue *AttributeDefinition::checkValue(AttributeValue *p,
						AttributeContext &) const
{
  return p;
}

Boolean AttributeDefinition::missingValueWouldMatch(const Text &,
						    const AttributeContext &) const
{
  return 0;
}

const AttributeValue *
AttributeDefinition::defaultValue(const AttributeValue *) const
{
  return 0;
}

void AttributeDefinition::getDesc(AttributeDefinitionDesc &desc) const
{
  desc.allowedValues.clear();
  desc.defaultValue.clear();
  desc.currentIndex = 0;
  buildDesc(desc);
  declaredValue_->buildDesc(desc);
}

Boolean AttributeDefinition::isConref() const
{
  return 0;
}

Boolean AttributeDefinition::isCurrent() const
{
  return 0;
}

Boolean AttributeDefinition::isFixed() const
{
  return 0;
}

RequiredAttributeDefinition::RequiredAttributeDefinition(const StringC &name,
							 DeclaredValue *value)
: AttributeDefinition(name, value)
{
}

ConstPtr<AttributeValue>
RequiredAttributeDefinition::makeMissingValue(AttributeContext &context) const
{
  if (context.validate())
    context.message(ParserMessages::requiredAttributeMissing,
		    StringMessageArg(name()));
  return 0;
}

void RequiredAttributeDefinition::buildDesc(AttributeDefinitionDesc &desc) const
{
  desc.defaultValueType = AttributeDefinitionDesc::required;
}

AttributeDefinition *RequiredAttributeDefinition::copy() const
{
  return new RequiredAttributeDefinition(*this);
}

CurrentAttributeDefinition::CurrentAttributeDefinition(const StringC &name, DeclaredValue *value, size_t index)
: AttributeDefinition(name, value), currentIndex_(index)
{
}

ConstPtr<AttributeValue>
CurrentAttributeDefinition::makeMissingValue(AttributeContext &context) const
{
  if (context.mayDefaultAttribute()) {
    ConstPtr<AttributeValue> currentValue
      = context.getCurrentAttribute(currentIndex_);
    if (currentValue.isNull() && context.validate())
      context.message(ParserMessages::currentAttributeMissing,
		      StringMessageArg(name()));
    return currentValue;
  }
  if (context.validate())
    context.message(ParserMessages::attributeMissing,
		    StringMessageArg(name()));
  return 0;
}

Boolean CurrentAttributeDefinition::missingValueWouldMatch(const Text &text,
							   const AttributeContext &context) const
{
  if (!context.mayDefaultAttribute())
    return 0;
  ConstPtr<AttributeValue> currentValue
    = context.getCurrentAttribute(currentIndex_);
  if (currentValue.isNull())
    return 0;
  return text.fixedEqual(*currentValue->text());
}

AttributeValue *
CurrentAttributeDefinition::checkValue(AttributeValue *value,
				       AttributeContext &context) const
{
  context.noteCurrentAttribute(currentIndex_, value);
  return value;
}

void CurrentAttributeDefinition::buildDesc(AttributeDefinitionDesc &desc) const
{
  desc.defaultValueType = AttributeDefinitionDesc::current;
  desc.currentIndex = currentIndex_;
}

AttributeDefinition *CurrentAttributeDefinition::copy() const
{
  return new CurrentAttributeDefinition(*this);
}

Boolean CurrentAttributeDefinition::isCurrent() const
{
  return 1;
}

ImpliedAttributeDefinition::ImpliedAttributeDefinition(const StringC &name,
						       DeclaredValue *value)
: AttributeDefinition(name, value)
{
}

ConstPtr<AttributeValue>
ImpliedAttributeDefinition::makeMissingValue(AttributeContext &context) const
{
  return context.makeImpliedAttributeValue();
}

void ImpliedAttributeDefinition::buildDesc(AttributeDefinitionDesc &desc) const
{
  desc.defaultValueType = AttributeDefinitionDesc::implied;
}

AttributeDefinition *ImpliedAttributeDefinition::copy() const
{
  return new ImpliedAttributeDefinition(*this);
}

const AttributeValue *
ImpliedAttributeDefinition::defaultValue(const AttributeValue *impliedValue)
     const
{
  return impliedValue;
}

ConrefAttributeDefinition::ConrefAttributeDefinition(const StringC &name,
						     DeclaredValue *value)
: ImpliedAttributeDefinition(name, value)
{
}

Boolean ConrefAttributeDefinition::isConref() const
{
  return 1;
}

void ConrefAttributeDefinition::buildDesc(AttributeDefinitionDesc &desc) const
{
  desc.defaultValueType = AttributeDefinitionDesc::conref;
}

AttributeDefinition *ConrefAttributeDefinition::copy() const
{
  return new ConrefAttributeDefinition(*this);
}

DefaultAttributeDefinition::DefaultAttributeDefinition(const StringC &name,
							DeclaredValue *declaredValue,
							AttributeValue *defaultValue)
: AttributeDefinition(name, declaredValue),
  value_(defaultValue)
{
}

ConstPtr<AttributeValue>
DefaultAttributeDefinition::makeMissingValue(AttributeContext &context) const
{
  if (context.mayDefaultAttribute())
    return value_;
  if (context.validate())
    context.message(ParserMessages::attributeMissing,
		    StringMessageArg(name()));
  return 0;
}

Boolean DefaultAttributeDefinition::missingValueWouldMatch(const Text &text,
							   const AttributeContext &context) const
{
  return context.mayDefaultAttribute() && text.fixedEqual(*value_->text());
}

void DefaultAttributeDefinition::buildDesc(AttributeDefinitionDesc &desc) const
{
  desc.defaultValueType = AttributeDefinitionDesc::defaulted;
  desc.defaultValue = value_;
}

AttributeDefinition *DefaultAttributeDefinition::copy() const
{
  return new DefaultAttributeDefinition(*this);
}

FixedAttributeDefinition:: FixedAttributeDefinition(const StringC &name,
						    DeclaredValue *declaredValue,
						    AttributeValue *defaultValue)
: DefaultAttributeDefinition(name, declaredValue, defaultValue)
{
}

Boolean FixedAttributeDefinition::isFixed() const
{
  return 1;
}

AttributeValue *FixedAttributeDefinition::checkValue(AttributeValue *value,
						     AttributeContext &context)
     const
{
  const AttributeValue *fixedValue
    = DefaultAttributeDefinition::defaultValue(0);
  if (value && fixedValue && context.validate()) {
    const Text *text;
    const StringC *str;
    const Text *fixedText;
    const StringC *fixedStr;
    switch (value->info(text, str)) {
    case AttributeValue::implied:
      CANNOT_HAPPEN();
    case AttributeValue::cdata:
      if (fixedValue->info(fixedText, fixedStr) == AttributeValue::cdata) {
	if (!text->fixedEqual(*fixedText))
	  context.message(ParserMessages::notFixedValue, StringMessageArg(name()));
      }
      break;
    case AttributeValue::tokenized:
      if (fixedValue->info(fixedText, fixedStr) == AttributeValue::tokenized) {
	if (*str != *fixedStr)
	  context.message(ParserMessages::notFixedValue, StringMessageArg(name()));
      }
      break;
    }
  }
  return value;
}

void FixedAttributeDefinition::buildDesc(AttributeDefinitionDesc &desc) const
{
  // get the fixed value
  DefaultAttributeDefinition::buildDesc(desc);
  desc.defaultValueType = AttributeDefinitionDesc::fixed;
}

AttributeDefinition *FixedAttributeDefinition::copy() const
{
  return new FixedAttributeDefinition(*this);
}

AttributeDefinitionList
::AttributeDefinitionList(Vector<CopyOwner<AttributeDefinition> > &vec,
			  size_t index,
			  Boolean anyCurrent,
			  size_t idIndex,
			  size_t notationIndex)
: index_(index), anyCurrent_(anyCurrent), idIndex_(idIndex),
  notationIndex_(notationIndex)
{
  defs_.swap(vec);
}

AttributeDefinitionList:: AttributeDefinitionList(const ConstPtr<AttributeDefinitionList> &def)
: prev_(def), index_(size_t(-1))
{
  if (def.isNull()) {
    anyCurrent_ = 0;
    notationIndex_ = size_t(-1);
    idIndex_ = size_t(-1);
  }
  else {
    anyCurrent_ = def->anyCurrent_;
    notationIndex_ = def->notationIndex_;
    idIndex_ = def->idIndex_;
    defs_ = def->defs_;
  }
}

Boolean AttributeDefinitionList::tokenIndex(const StringC &token, unsigned &index) const
{
  for (size_t i = 0; i < defs_.size(); i++)
    if (defs_[i]->containsToken(token)) {
      index = i;
      return 1;
    }
  return 0;
}

Boolean AttributeDefinitionList::tokenIndexUnique(const StringC &token, unsigned i) const
{
  for (++i; i < defs_.size(); i++)
    if (defs_[i]->containsToken(token))
      return 0;
  return 1;
}


Boolean AttributeDefinitionList::attributeIndex(const StringC &name,
						unsigned &index) const
{
  for (size_t i = 0; i < defs_.size(); i++)
    if (defs_[i]->name() == name) {
      index = i;
      return 1;
    }
  return 0;
}

void AttributeDefinitionList::append(AttributeDefinition *def)
{
  if (def->isId() && idIndex_ == size_t(-1))
    idIndex_ = defs_.size();
  if (def->isNotation() && notationIndex_ == size_t(-1))
    notationIndex_ = defs_.size();
  if (def->isCurrent())
    anyCurrent_ = 1;
  defs_.resize(defs_.size() + 1);
  defs_.back() = def;
}

AttributeSemantics::AttributeSemantics()
{
}

AttributeSemantics::~AttributeSemantics()
{
}

size_t AttributeSemantics::nEntities() const
{
  return 0;
}

ConstPtr<Entity> AttributeSemantics::entity(size_t) const
{
  return 0;
}

ConstPtr<Notation> AttributeSemantics::notation() const
{