/// <summary>
/// Parse a variable.
/// <see cref="VariableNode" />:
/// $Name
/// </summary>
/// <param name="context">The parser context.</param>
private static VariableNode ParseVariable(ParserContext context)
{
SyntaxToken start = context.ExpectDollar();
NameNode name = ParseName(context);
Location location = context.CreateLocation(start);
return(new VariableNode
(
location,
name
));
}