bool CSSTokenizer::nextCharsAreNumber()
{
UChar first = consume();
bool areNumber = nextCharsAreNumber(first);
reconsume(first);
return areNumber;
}
CSSParserToken CSSTokenizer::plusOrFullStop(UChar cc)
{
if (nextCharsAreNumber(cc)) {
reconsume(cc);
return consumeNumericToken();
}
return CSSParserToken(DelimiterToken, cc);
}
MediaQueryToken MediaQueryTokenizer::hyphenMinus(UChar cc)
{
if (nextCharsAreNumber(cc)) {
reconsume(cc);
return consumeNumericToken();
}
if (nextCharsAreIdentifier(cc)) {
reconsume(cc);
return consumeIdentLikeToken();
}
return MediaQueryToken(DelimiterToken, cc);
}
CSSParserToken CSSTokenizer::hyphenMinus(UChar cc)
{
if (nextCharsAreNumber(cc)) {
reconsume(cc);
return consumeNumericToken();
}
if (m_input.peek(0) == '-' && m_input.peek(1) == '>') {
consume(2);
return CSSParserToken(CDCToken);
}
if (nextCharsAreIdentifier(cc)) {
reconsume(cc);
return consumeIdentLikeToken();
}
return CSSParserToken(DelimiterToken, cc);
}
// This method merges the following spec sections for efficiency
// http://www.w3.org/TR/css3-syntax/#consume-a-number
// http://www.w3.org/TR/css3-syntax/#convert-a-string-to-a-number
MediaQueryToken MediaQueryTokenizer::consumeNumber()
{
ASSERT(nextCharsAreNumber());
NumericValueType type = IntegerValueType;
double value = 0;
unsigned offset = 0;
int exponentSign = 1;
unsigned fractionDigits;
int sign = getSign(m_input, offset);
unsigned long long integerPart = getInteger(m_input, offset);
double fractionPart = getFraction(m_input, offset, fractionDigits);
unsigned long long exponentPart = getExponent(m_input, offset, exponentSign);
double exponent = pow(10, (float)exponentSign * (double)exponentPart);
value = (double)sign * ((double)integerPart + fractionPart) * exponent;
m_input.advance(offset);
if (fractionDigits > 0)
type = NumberValueType;
return MediaQueryToken(NumberToken, value, type);
}
// This method merges the following spec sections for efficiency
// http://www.w3.org/TR/css3-syntax/#consume-a-number
// http://www.w3.org/TR/css3-syntax/#convert-a-string-to-a-number
CSSParserToken CSSTokenizer::consumeNumber()
{
ASSERT(nextCharsAreNumber());
NumericValueType type = IntegerValueType;
double value = 0;
unsigned offset = 0;
int exponentSign = 1;
NumericSign sign = getSign(m_input, offset);
double integerPart = getInteger(m_input, offset);
unsigned integerPartEndOffset = offset;
double fractionPart = getFraction(m_input, offset);
double exponentPart = getExponent(m_input, offset, exponentSign);
double exponent = pow(10, (float)exponentSign * (double)exponentPart);
value = ((double)integerPart + fractionPart) * exponent;
if (sign == MinusSign)
value = -value;
m_input.advance(offset);
if (offset != integerPartEndOffset)
type = NumberValueType;
return CSSParserToken(NumberToken, value, type, sign);
}