/// <summary>
/// Serializes an attribute set to a string builder in form " [a = b]"
/// </summary>
private void AppendAttributeSet(IAttrSet attrSet, StringBuilder sb)
{
if (!AttrSet.NotNullOrEmpty(attrSet))
{
return;
}
sb.Append(" [");
bool wroteFirst = false;
foreach (IAttribute attribute in attrSet)
{
if (wroteFirst)
{
sb.Append(", ");
}
string record = _dotHelper.GetRecordFromAttribute(attribute);
sb.Append(record);
wroteFirst = true;
}
sb.Append("]");
}
public IAttrSet Add(IAttribute a)
{
bool hasValue = _set.ContainsKey(a.Key);
bool newValueGiven = a.StringValue != null;
if (!hasValue && !newValueGiven)
{
// Since no change,
return(this);
}
AttrSet clonedSet = new AttrSet(_set);
string key = a.Key;
if (newValueGiven)
{
clonedSet._set[key] = a;
}
else
{
clonedSet._set.Remove(key);
}
return(clonedSet);
}
public void SetNodeAttributes(IAttrSet attributesSet)
{
if (!AttrSet.NotNullOrEmpty(attributesSet))
{
return;
}
StringBuilder sb = new StringBuilder();
sb.Append("node");
AppendAttributeSet(attributesSet, sb);
sb.Append(";");
Line(sb.ToString());
}
public IAttrSet Add(IAttrSet attrSet)
{
bool shouldAdd = attrSet.Any();
if (!shouldAdd)
{
// Since no change
return(this);
}
AttrSet clonedSet = new AttrSet(_set);
foreach (IAttribute item in attrSet)
{
clonedSet._set[item.Key] = item;
}
return(clonedSet);
}