MediaQueryToken MediaQueryTokenizer::whiteSpace(UChar cc)
{
// CSS Tokenization is currently lossy, but we could record
// the exact whitespace instead of discarding it here.
consumeUntilNonWhitespace();
return MediaQueryToken(WhitespaceToken);
}
// http://dev.w3.org/csswg/css-syntax/#consume-url-token
CSSParserToken CSSTokenizer::consumeUrlToken()
{
consumeUntilNonWhitespace();
// URL tokens without escapes get handled without allocations
for (unsigned size = 0; ; size++) {
UChar cc = m_input.peekWithoutReplacement(size);
if (cc == ')') {
unsigned startOffset = m_input.offset();
m_input.advance(size + 1);
return CSSParserToken(UrlToken, m_input.rangeAsCSSParserString(startOffset, size));
}
if (cc <= ' ' || cc == '\\' || cc == '"' || cc == '\'' || cc == '(' || cc == '\x7f')
break;
}
StringBuilder result;
while (true) {
UChar cc = consume();
if (cc == ')' || cc == kEndOfFileMarker)
return CSSParserToken(UrlToken, registerString(result.toString()));
if (isHTMLSpace(cc)) {
consumeUntilNonWhitespace();
if (consumeIfNext(')') || m_input.nextInputChar() == kEndOfFileMarker)
return CSSParserToken(UrlToken, registerString(result.toString()));
break;
}
if (cc == '"' || cc == '\'' || cc == '(' || isNonPrintableCodePoint(cc))
break;
if (cc == '\\') {
if (twoCharsAreValidEscape(cc, m_input.nextInputChar())) {
result.append(consumeEscape());
continue;
}
break;
}
result.append(cc);
}
consumeBadUrlRemnants();
return CSSParserToken(BadUrlToken);
}
// http://dev.w3.org/csswg/css-syntax/#consume-url-token
CSSParserToken CSSTokenizer::consumeUrlToken()
{
consumeUntilNonWhitespace();
StringBuilder result;
while (true) {
UChar cc = consume();
if (cc == ')' || cc == kEndOfFileMarker) {
// The "reconsume" here deviates from the spec, but is required to avoid consuming past the EOF
if (cc == kEndOfFileMarker)
reconsume(cc);
return CSSParserToken(UrlToken, result.toString());
}
if (isHTMLSpace(cc)) {
consumeUntilNonWhitespace();
if (consumeIfNext(')') || m_input.nextInputChar() == kEndOfFileMarker)
return CSSParserToken(UrlToken, result.toString());
break;
}
if (cc == '"' || cc == '\'' || cc == '(' || isNonPrintableCodePoint(cc))
break;
if (cc == '\\') {
if (twoCharsAreValidEscape(cc, m_input.nextInputChar())) {
result.append(consumeEscape());
continue;
}
break;
}
result.append(cc);
}
consumeBadUrlRemnants();
return CSSParserToken(BadUrlToken);
}
// http://dev.w3.org/csswg/css-syntax/#consume-ident-like-token
CSSParserToken CSSTokenizer::consumeIdentLikeToken()
{
CSSParserString name = consumeName();
if (consumeIfNext('(')) {
if (name.equalIgnoringASCIICase("url")) {
// The spec is slightly different so as to avoid dropping whitespace
// tokens, but they wouldn't be used and this is easier.
consumeUntilNonWhitespace();
UChar next = m_input.nextInputChar();
if (next != '"' && next != '\'')
return consumeUrlToken();
}
return blockStart(LeftParenthesisToken, FunctionToken, name);
}
return CSSParserToken(IdentToken, name);
}
CSSParserToken CSSTokenizer::whiteSpace(UChar cc)
{
consumeUntilNonWhitespace();
return CSSParserToken(WhitespaceToken);
}
