static unsigned long long getInteger(CSSTokenizerInputStream& input, unsigned& offset)
{
unsigned intStartPos = offset;
offset = input.skipWhilePredicate<isASCIIDigit>(offset);
unsigned intEndPos = offset;
return input.getUInt(intStartPos, intEndPos);
}
static unsigned long long getExponent(CSSTokenizerInputStream& input, unsigned& offset, int& sign)
{
unsigned exponentStartPos = 0;
unsigned exponentEndPos = 0;
if ((input.peek(offset) == 'E' || input.peek(offset) == 'e')) {
int offsetBeforeExponent = offset;
++offset;
if (input.peek(offset) == '+') {
++offset;
} else if (input.peek(offset) =='-') {
sign = -1;
++offset;
}
exponentStartPos = offset;
offset = input.skipWhilePredicate<isASCIIDigit>(offset);
exponentEndPos = offset;
if (exponentEndPos == exponentStartPos)
offset = offsetBeforeExponent;
}
return input.getUInt(exponentStartPos, exponentEndPos);
}