/// <summary>
/// When visiting the user agent node tries to find children skipping root node by name.
/// Otherwise calls tries to get children using children visitor.
/// </summary>
/// <param name="context">The context of the current node <see cref="UserAgentParser.UserAgentContext"/>.</param>
/// <returns>The found children as <see cref="IEnumerator{IParseTree}"/>.</returns>
public override IEnumerator <IParseTree> VisitUserAgent([NotNull] UserAgentParser.UserAgentContext context)
{
using (var children = this.GetChildrenByName(context))
{
if (!children.MoveNext() && children.Current == null)
{
return(this.VisitChildren(context));
}
return(children);
}
}
/// <summary>
/// When a user agent is found.
/// </summary>
/// <param name="context">The context node.</param>
public override void EnterUserAgent([NotNull] UserAgentParser.UserAgentContext context)
{
// In case of a parse error the 'parsed' version of agent can be incomplete
this.Inform(context, AGENT, context.Start.TokenSource.InputStream.ToString());
}
/// <summary>
/// Visit a parse tree produced by <see cref="UserAgentParser.userAgent"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitUserAgent([NotNull] UserAgentParser.UserAgentContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="UserAgentParser.userAgent"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitUserAgent([NotNull] UserAgentParser.UserAgentContext context)
{
}