private static IEnumerable<string> GetFilesFromUids(DocumentBuildContext context, IEnumerable<string> uids)
{
foreach (var uid in uids)
{
if (string.IsNullOrEmpty(uid))
{
continue;
}
XRefSpec spec;
if (!context.XRefSpecMap.TryGetValue(uid, out spec))
{
continue;
}
if (spec.Href != null)
{
yield return spec.Href;
}
}
}