bool SVGViewSpec::parseViewSpec(const String& viewSpec)
{
    const UChar* currViewSpec = viewSpec.characters();
    const UChar* end = currViewSpec + viewSpec.length();

    if (currViewSpec >= end)
        return false;

    if (!skipString(currViewSpec, end, svgViewSpec, sizeof(svgViewSpec) / sizeof(UChar)))
        return false;

    if (currViewSpec >= end || *currViewSpec != '(' )
        return false;
    currViewSpec++;

    while (currViewSpec < end && *currViewSpec != ')') {
        if (*currViewSpec == 'v') {
            if (skipString(currViewSpec, end, viewBoxSpec, sizeof(viewBoxSpec) / sizeof(UChar))) {
                if (currViewSpec >= end || *currViewSpec != '(')
                    return false;
                currViewSpec++;
                float x, y, w, h;
                if (!parseViewBox(currViewSpec, end, x, y, w, h, false))
                    return false;
                setViewBoxBaseValue(FloatRect(x, y, w, h));
                if (currViewSpec >= end || *currViewSpec != ')')
                    return false;
                currViewSpec++;
            } else if (skipString(currViewSpec, end, viewTargetSpec, sizeof(viewTargetSpec) / sizeof(UChar))) {
                if (currViewSpec >= end || *currViewSpec != '(')
                    return false;
                const UChar* viewTargetStart = ++currViewSpec;
                while (currViewSpec < end && *currViewSpec != ')')
                    currViewSpec++;
                if (currViewSpec >= end)
                    return false;
                setViewTargetString(String(viewTargetStart, currViewSpec - viewTargetStart));
                currViewSpec++;
            } else
                return false;
        } else if (*currViewSpec == 'z') {
            if (!skipString(currViewSpec, end, zoomAndPanSpec, sizeof(zoomAndPanSpec) / sizeof(UChar)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            if (!parseZoomAndPan(currViewSpec, end))
                return false;
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else if (*currViewSpec == 'p') {
            if (!skipString(currViewSpec, end, preserveAspectRatioSpec, sizeof(preserveAspectRatioSpec) / sizeof(UChar)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            if (!preserveAspectRatioBaseValue()->parsePreserveAspectRatio(currViewSpec, end, false))
                return false;
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else if (*currViewSpec == 't') {
            if (!skipString(currViewSpec, end, transformSpec, sizeof(transformSpec) / sizeof(UChar)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            SVGTransformable::parseTransformAttribute(m_transform.get(), currViewSpec, end);
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else
            return false;

        if (currViewSpec < end && *currViewSpec == ';')
            currViewSpec++;
    }
    
    if (currViewSpec >= end || *currViewSpec != ')')
        return false;

    return true;
}
Пример #2
0
bool SVGViewSpec::parseViewSpec(const String& viewSpec)
{
    const UChar* currViewSpec = viewSpec.deprecatedCharacters();
    const UChar* end = currViewSpec + viewSpec.length();

    if (currViewSpec >= end || !m_contextElement)
        return false;

    if (!skipString(currViewSpec, end, svgViewSpec, WTF_ARRAY_LENGTH(svgViewSpec)))
        return false;

    if (currViewSpec >= end || *currViewSpec != '(')
        return false;
    currViewSpec++;

    while (currViewSpec < end && *currViewSpec != ')') {
        if (*currViewSpec == 'v') {
            if (skipString(currViewSpec, end, viewBoxSpec, WTF_ARRAY_LENGTH(viewBoxSpec))) {
                if (currViewSpec >= end || *currViewSpec != '(')
                    return false;
                currViewSpec++;
                FloatRect viewBox;
                if (!SVGFitToViewBox::parseViewBox(&m_contextElement->document(), currViewSpec, end, viewBox, false))
                    return false;
                setViewBoxBaseValue(viewBox);
                if (currViewSpec >= end || *currViewSpec != ')')
                    return false;
                currViewSpec++;
            } else if (skipString(currViewSpec, end, viewTargetSpec, WTF_ARRAY_LENGTH(viewTargetSpec))) {
                if (currViewSpec >= end || *currViewSpec != '(')
                    return false;
                const UChar* viewTargetStart = ++currViewSpec;
                while (currViewSpec < end && *currViewSpec != ')')
                    currViewSpec++;
                if (currViewSpec >= end)
                    return false;
                setViewTargetString(String(viewTargetStart, currViewSpec - viewTargetStart));
                currViewSpec++;
            } else
                return false;
        } else if (*currViewSpec == 'z') {
            if (!skipString(currViewSpec, end, zoomAndPanSpec, WTF_ARRAY_LENGTH(zoomAndPanSpec)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            if (!parseZoomAndPan(currViewSpec, end, m_zoomAndPan))
                return false;
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else if (*currViewSpec == 'p') {
            if (!skipString(currViewSpec, end, preserveAspectRatioSpec, WTF_ARRAY_LENGTH(preserveAspectRatioSpec)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            SVGPreserveAspectRatio preserveAspectRatio;
            if (!preserveAspectRatio.parse(currViewSpec, end, false))
                return false;
            setPreserveAspectRatioBaseValue(preserveAspectRatio);
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else if (*currViewSpec == 't') {
            if (!skipString(currViewSpec, end, transformSpec, WTF_ARRAY_LENGTH(transformSpec)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            SVGTransformable::parseTransformAttribute(m_transform, currViewSpec, end, SVGTransformable::DoNotClearList);
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else
            return false;

        if (currViewSpec < end && *currViewSpec == ';')
            currViewSpec++;
    }
    
    if (currViewSpec >= end || *currViewSpec != ')')
        return false;

    return true;
}
Пример #3
0
bool SVGViewSpec::parseViewSpec(const String& viewSpec)
{
    const UChar* currViewSpec = viewSpec.characters();
    const UChar* end = currViewSpec + viewSpec.length();

    if (currViewSpec >= end)
        return false;

    if (!skipString(currViewSpec, end, svgViewSpec, sizeof(svgViewSpec) / sizeof(UChar)))
        return false;

    if (currViewSpec >= end || *currViewSpec != '(' )
        return false;
    currViewSpec++;

    while (currViewSpec < end && *currViewSpec != ')') {
        if (*currViewSpec == 'v') {
            if (skipString(currViewSpec, end, viewBoxSpec, sizeof(viewBoxSpec) / sizeof(UChar))) {
                if (currViewSpec >= end || *currViewSpec != '(')
                    return false;
                currViewSpec++;
                FloatRect viewBox;
                if (!parseViewBox(m_contextElement->document(), currViewSpec, end, viewBox, false))
                    return false;
                setViewBoxBaseValue(viewBox);
                if (currViewSpec >= end || *currViewSpec != ')')
                    return false;
                currViewSpec++;
            } else if (skipString(currViewSpec, end, viewTargetSpec, sizeof(viewTargetSpec) / sizeof(UChar))) {
                if (currViewSpec >= end || *currViewSpec != '(')
                    return false;
                const UChar* viewTargetStart = ++currViewSpec;
                while (currViewSpec < end && *currViewSpec != ')')
                    currViewSpec++;
                if (currViewSpec >= end)
                    return false;
                setViewTargetString(String(viewTargetStart, currViewSpec - viewTargetStart));
                currViewSpec++;
            } else
                return false;
        } else if (*currViewSpec == 'z') {
            if (!skipString(currViewSpec, end, zoomAndPanSpec, sizeof(zoomAndPanSpec) / sizeof(UChar)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            if (!parseZoomAndPan(currViewSpec, end))
                return false;
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else if (*currViewSpec == 'p') {
            if (!skipString(currViewSpec, end, preserveAspectRatioSpec, sizeof(preserveAspectRatioSpec) / sizeof(UChar)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            bool result = false; 
            setPreserveAspectRatioBaseValue(SVGPreserveAspectRatio::parsePreserveAspectRatio(currViewSpec, end, false, result));
            if (!result)
                return false;
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else if (*currViewSpec == 't') {
            if (!skipString(currViewSpec, end, transformSpec, sizeof(transformSpec) / sizeof(UChar)))
                return false;
            if (currViewSpec >= end || *currViewSpec != '(')
                return false;
            currViewSpec++;
            SVGTransformable::parseTransformAttribute(m_transform.get(), currViewSpec, end, SVGTransformable::DoNotClearList);
            if (currViewSpec >= end || *currViewSpec != ')')
                return false;
            currViewSpec++;
        } else
            return false;

        if (currViewSpec < end && *currViewSpec == ';')
            currViewSpec++;
    }
    
    if (currViewSpec >= end || *currViewSpec != ')')
        return false;

    return true;
}