public override Node Evaluate(Env env)
{
var value = Regex.Replace(Value, @"@\{([\w-]+)\}",
m =>
{
var v = new Variable('@' + m.Groups[1].Value) {Index = Index + m.Index}.Evaluate(env);
return v is TextNode ? (v as TextNode).Value : v.ToCSS(env);
});
return new Quoted(value, Quote, Escaped) {Index = Index};
}
public override Node Evaluate(Env env)
{
var value = Regex.Replace(Value, @"@\{([\w-]+)\}",
m =>
{
var v = new Variable('@' + m.Groups[1].Value)
{ Location = new NodeLocation(Location.Index + m.Index, Location.Source, Location.FileName) }
.Evaluate(env);
return v is TextNode ? (v as TextNode).Value : v.ToCSS(env);
});
return new Quoted(value, Quote, Escaped).ReducedFrom<Quoted>(this);
}
public override Node Evaluate(Env env)
{
var name = Name;
if (name.StartsWith("@@"))
{
var v = new Variable(name.Substring(1)).Evaluate(env);
name = '@' + (v is TextNode ? (v as TextNode).Value : v.ToCSS(env));
}
var variable = env.FindVariable(name);
if (variable)
return variable.Value.Evaluate(env);
throw new ParsingException("variable " + name + " is undefined", Index);
}
public override Node Evaluate(Env env)
{
var name = Name;
if (name.StartsWith("@@"))
{
var v = new Variable(name.Substring(1)).Evaluate(env);
name = '@' + (v is TextNode ? (v as TextNode).Value : v.ToCSS(env));
}
if (env.IsEvaluatingVariable(name)) {
throw new ParsingException("Recursive variable definition for " + name, Location);
}
var variable = env.FindVariable(name);
if (variable) {
return variable.Value.Evaluate(env.CreateVariableEvaluationEnv(name));
}
throw new ParsingException("variable " + name + " is undefined", Location);
}