internal static bool TryParse(Node parent, Queue <Word> remainingWords, out VariableAssignment assignment)
{
assignment = null;
if (!remainingWords.Peek().Text.StartsWith("$"))
{
return(false);
}
var word = remainingWords.Dequeue();
assignment = new VariableAssignment(parent)
{
Name = word.Text, SourceLine = word.Line
};
// remove ':'
remainingWords.Dequeue();
Expression expression;
if (!Expression.TryParse(assignment, remainingWords, out expression))
{
return(false);
}
// remove ';'
remainingWords.Dequeue();
assignment.Expression = expression;
return(true);
}
internal static bool TryParse(Node parent, Queue <Word> remainingWords, out Script script)
{
script = new Script(parent);
do
{
MixinDefinition mixinDefinition;
if (MixinDefinition.TryParse(script, remainingWords, out mixinDefinition))
{
script.Children.Add(mixinDefinition);
continue;
}
VariableAssignment variableAssignment;
if (VariableAssignment.TryParse(script, remainingWords, out variableAssignment))
{
script.Children.Add(variableAssignment);
continue;
}
Selector selector;
if (Selector.TryParse(script, remainingWords, out selector))
{
script.Children.Add(selector);
continue;
}
}while (remainingWords.Count > 0);
return(true);
}
public override Node Clone(Node newParent)
{
var newAssignment = new VariableAssignment(newParent)
{
Name = Name, SourceLine = SourceLine
};
newAssignment.Expression = (Expression)Expression.Clone(newAssignment.Expression);
return(newAssignment);
}
internal static bool TryParse(Node parent, Queue<Word> remainingWords, out VariableAssignment assignment)
{
assignment = null;
if (!remainingWords.Peek().Text.StartsWith("$"))
{
return false;
}
var word = remainingWords.Dequeue();
assignment = new VariableAssignment(parent) { Name = word.Text, SourceLine = word.Line };
// remove ':'
remainingWords.Dequeue();
Expression expression;
if (!Expression.TryParse(assignment, remainingWords, out expression))
{
return false;
}
// remove ';'
remainingWords.Dequeue();
assignment.Expression = expression;
return true;
}
public override Node Clone(Node newParent)
{
var newAssignment = new VariableAssignment(newParent) { Name = Name, SourceLine = SourceLine };
newAssignment.Expression = (Expression)Expression.Clone(newAssignment.Expression);
return newAssignment;
}
