// https://wicg.github.io/entries-api/#resolve-a-relative-path
static String resolveRelativeVirtualPath(StringView baseVirtualPath, StringView relativeVirtualPath)
{
ASSERT(baseVirtualPath[0] == '/');
if (!relativeVirtualPath.isEmpty() && relativeVirtualPath[0] == '/')
return relativeVirtualPath.length() == 1 ? relativeVirtualPath.toString() : resolveRelativeVirtualPath("/", relativeVirtualPath.substring(1));
Vector<StringView> virtualPathSegments;
for (auto segment : baseVirtualPath.split('/'))
virtualPathSegments.append(segment);
for (auto segment : relativeVirtualPath.split('/')) {
ASSERT(!segment.isEmpty());
if (segment == ".")
continue;
if (segment == "..") {
if (!virtualPathSegments.isEmpty())
virtualPathSegments.removeLast();
continue;
}
virtualPathSegments.append(segment);
}
if (virtualPathSegments.isEmpty())
return "/"_s;
StringBuilder builder;
for (auto& segment : virtualPathSegments) {
builder.append('/');
builder.append(segment);
}
return builder.toString();
}
static bool isZeroOrMorePathSegmentsSeparatedBySlashes(StringView string)
{
auto segments = string.split('/');
for (auto segment : segments) {
if (!isValidPathSegment(segment))
return false;
}
return true;
}
// https://wicg.github.io/entries-api/#evaluate-a-path
String DOMFileSystem::evaluatePath(StringView virtualPath)
{
ASSERT(virtualPath[0] == '/');
Vector<StringView> resolvedComponents;
for (auto component : virtualPath.split('/')) {
if (component == ".")
continue;
if (component == "..") {
if (!resolvedComponents.isEmpty())
resolvedComponents.removeLast();
continue;
}
resolvedComponents.append(component);
}
return FileSystem::pathByAppendingComponents(m_rootPath, resolvedComponents);
}