inline void CSSPreloadScanner::tokenize(UChar c)
{
// We are just interested in @import rules, no need for real tokenization here
// Searching for other types of resources is probably low payoff.
switch (m_state) {
case Initial:
if (isHTMLSpace(c))
break;
if (c == '@')
m_state = RuleStart;
else if (c == '/')
m_state = MaybeComment;
else
m_state = DoneParsingImportRules;
break;
case MaybeComment:
if (c == '*')
m_state = Comment;
else
m_state = Initial;
break;
case Comment:
if (c == '*')
m_state = MaybeCommentEnd;
break;
case MaybeCommentEnd:
if (c == '*')
break;
if (c == '/')
m_state = Initial;
else
m_state = Comment;
break;
case RuleStart:
if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) {
m_rule.clear();
m_ruleValue.clear();
m_rule.append(c);
m_state = Rule;
} else
m_state = Initial;
break;
case Rule:
if (isHTMLSpace(c))
m_state = AfterRule;
else if (c == ';')
m_state = Initial;
else
m_rule.append(c);
break;
case AfterRule:
if (isHTMLSpace(c))
break;
if (c == ';')
m_state = Initial;
else if (c == '{')
m_state = DoneParsingImportRules;
else {
m_state = RuleValue;
m_ruleValue.append(c);
}
break;
case RuleValue:
if (isHTMLSpace(c))
m_state = AfterRuleValue;
else if (c == ';')
emitRule();
else
m_ruleValue.append(c);
break;
case AfterRuleValue:
if (isHTMLSpace(c))
break;
if (c == ';')
emitRule();
else if (c == '{')
m_state = DoneParsingImportRules;
else {
// FIXME: media rules
m_state = Initial;
}
break;
case DoneParsingImportRules:
ASSERT_NOT_REACHED();
break;
}
}
void
ZDriver::writeReduceFunc( std::ostream &out )
{
size_t i, nRule;
nRule = RuleTable::get()->getNumRules();
emitFuncBreak( out );
out << "void " << myPimplName << "::reduce( int ruleNum"
<< myExtraArg << " )" << endl();
out << "{" << endl();
if ( isDebugOutput() )
out << " std::cout << \"REDUCE rule \" << ruleNum << std::endl;"
<< endl();
out << " int newVal;" << endl();
out << " ParserAct next;" << endl();
out << " Util::Any data;" << endl();
out << " std::vector< Util::Any > rhsData;" << endl() << endl();
out << " rhsData.reserve( myRules[ruleNum].second );" << endl();
out << " for ( int i = 0, N = myRules[ruleNum].second; i != N; ++i )"
<< endl();
out << " {" << endl();
out << " if ( myStack.empty() )" << endl()
<< " rhsData.insert( rhsData.begin(), data );" << endl()
<< " else" << endl()
<< " {" << endl();
out << " rhsData.insert( rhsData.begin(), myStack.top().second );"
<< endl();
out << " myStack.pop();" << endl()
<< " }" << endl();
out << " }" << endl();
out << endl();
out << " next = findParserAction( newVal, myRules[ruleNum].first );"
<< endl();
out << endl();
out << " switch ( ruleNum )" << endl();
out << " {" << endl();
for ( i = 0; i < nRule; ++i )
{
Rule *rp = RuleTable::get()->getNthRule( i );
out << " case " << i << ":" << endl();
out << " {" << endl();
out << " // ";
rp->print( out );
out << endl();
emitRule( rp, out );
out << " break;" << endl();
out << " }" << endl() << endl();
}
out << " default:" << endl();
out << " throw \"Unknown Rule Number\";" << endl();
out << " break;" << endl();
out << " }" << endl();
out << endl();
out << " if ( PA_SHIFT == next )" << endl();
out << " shift( newVal, myRules[ruleNum].first, data );" << endl();
if ( isValueSet( "parse_accept" ) )
{
out << " else" << endl();
if ( !myExtraArgCall.empty() )
out << " accept( " << myExtraArgCall << " );" << endl();
else
out << " accept();" << endl();
}
out << "}" << endl();
}
