// 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);
}
Пример #2
0
// 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);
}