public void Write(CssAtGroupToken group)
{
_writer.Write('@');
_writer.Write(group.Data);
foreach (var arg in group)
{
Write(arg);
}
if (group.IsTerminated)
{
_writer.Write(';');
}
}
/// <summary>
/// Create properties and @-rule groups
/// </summary>
private static IEnumerable <CssToken> GetProperties(this IEnumerable <CssToken> reader)
{
using (var e = reader.GetEnumerator())
{
if (!e.MoveNext())
{
yield break;
}
var prev = e.Current;
if (e.Current.Type == CssTokenType.AtKeyword)
{
prev = new CssAtGroupToken(e.Current.Data, e.Current.Position);
}
else
{
prev = e.Current;
}
while (e.MoveNext())
{
if (prev.Type == CssTokenType.Ident &&
e.Current.Data == ":")
{
prev = new CssPropertyToken(prev.Data, prev.Position);
}
else if (prev.Type == CssTokenType.Property)
{
var prop = (CssPropertyToken)prev;
if (prop.IsTerminated || e.Current.Data == "}" || e.Current.Data == ")")
{
yield return(prev);
prev = e.Current;
}
else if (e.Current.Data == ";")
{
prop.IsTerminated = true;
}
else
{
prop.AddArgumentToken(e.Current);
}
}
else if (prev.Type == CssTokenType.AtGroup)
{
var group = (CssAtGroupToken)prev;
if (group.IsTerminated || e.Current.Data == "{")
{
yield return(prev);
prev = e.Current;
}
else if (e.Current.Data == ";")
{
group.IsTerminated = true;
}
else
{
group.AddArgumentToken(e.Current);
}
}
else
{
yield return(prev);
if (e.Current.Type == CssTokenType.AtKeyword)
{
prev = new CssAtGroupToken(e.Current.Data, e.Current.Position);
}
else
{
prev = e.Current;
}
}
}
yield return(prev);
}
}