Source/WebCore/svg/SVGLengthList.cpp

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 * Copyright (C) 2020 Apple Inc. All rights reserved.
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#include "config.h"
#include "SVGLengthList.h"

#include <wtf/text/StringBuilder.h>
#include <wtf/text/StringParsingBuffer.h>

namespace WebCore {

bool SVGLengthList::parse(StringView value)
{
    clearItems();

    return readCharactersForParsing(value, [&](auto buffer) {
        skipOptionalSVGSpaces(buffer);

        while (buffer.hasCharactersRemaining()) {
            auto start = buffer.position();

            skipUntil<isSVGSpaceOrComma>(buffer);

            if (buffer.position() == start)
                break;

            auto value = SVGLengthValue::construct(m_lengthMode, StringView(start, buffer.position() - start));
            if (!value)
                break;

            append(SVGLength::create(WTFMove(*value)));
            skipOptionalSVGSpacesOrDelimiter(buffer);
        }

        // FIXME: Should this clearItems() on failure like SVGTransformList does?

        return buffer.atEnd();
    });
}

String SVGLengthList::valueAsString() const
{
    StringBuilder builder;

    for (const auto& length : m_items) {
        if (builder.length())
            builder.append(' ');

        builder.append(length->value().valueAsString());
    }

    return builder.toString();
}

}