public static IEnumerable <WebLink> Parse(string linkFormat)
{
if (string.IsNullOrEmpty(linkFormat))
{
yield break;
}
string[] resources = SplitOn(linkFormat, ',');
foreach (string resource in resources)
{
string[] attributes = SplitOn(resource, ';');
if (attributes[0][0] != '<' || attributes[0][attributes[0].Length - 1] != '>')
{
throw new ArgumentException();
}
WebLink link = new WebLink(attributes[0].Substring(1, attributes[0].Length - 2));
for (int i = 1; i < attributes.Length; i++)
{
int eq = attributes[i].IndexOf('=');
string name = eq == -1 ? attributes[i] : attributes[i].Substring(0, eq);
if (ParseStrictMode && SingleOccuranceAttributes.Contains(name))
{
throw new ArgumentException($"'{name}' occurs multiple times");
}
if (eq == -1)
{
link.Attributes.Add(name);
}
else
{
string value = attributes[i].Substring(eq + 1);
if (value[0] == '"')
{
if (value[value.Length - 1] != '"')
{
throw new ArgumentException();
}
value = value.Substring(1, value.Length - 2);
}
link.Attributes.Set(name, value);
}
}
yield return(link);
}
}
private static IEnumerable <WebLink> ParseCommon(CBORObject links, Dictionary <string, CBORObject> dictionary)
{
if (links.Type != CBORType.Array)
{
throw new ArgumentException("Not an array");
}
for (int i = 0; i < links.Count; i++)
{
CBORObject resource = links[i];
if (resource.Type != CBORType.Map)
{
throw new ArgumentException("Element not correctly formatted");
}
string name;
if (resource.ContainsKey("href"))
{
name = resource["href"].AsString();
}
else
{
name = resource[CBORObject.FromObject(1)].AsString();
}
WebLink link = new WebLink(name);
foreach (CBORObject key in resource.Keys)
{
string keyName = null;
if (dictionary != null && key.Type == CBORType.Number)
{
foreach (KeyValuePair <string, CBORObject> kvp in dictionary)
{
if (key.Equals(kvp.Value))
{
keyName = kvp.Key;
break;
}
}
}
if (keyName == null)
{
keyName = key.AsString();
}
if (ParseStrictMode && SingleOccuranceAttributes.Contains(keyName))
{
throw new ArgumentException($"'{keyName}' occurs multiple times");
}
CBORObject value = resource[key];
if (value.Type == CBORType.Boolean)
{
link.Attributes.Add(name);
}
else if (value.Type == CBORType.TextString)
{
link.Attributes.Add(name, value.AsString());
}
else if (value.Type == CBORType.Array)
{
for (int i1 = 0; i1 < value.Count; i1++)
{
if (value.Type == CBORType.Boolean)
{
link.Attributes.Add(name);
}
else if (value.Type == CBORType.TextString)
{
link.Attributes.Add(name, value.AsString());
}
else
{
throw new ArgumentException("incorrect type");
}
}
}
else
{
throw new ArgumentException("incorrect type");
}
}
yield return(link);
}
}