/// <summary>
/// Inform about substrings.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="name">The name.</param>
/// <param name="fakeChild">True if it's a fake child.</param>
/// <param name="splitter">The <see cref="Splitter"/>.</param>
private void InformSubstrings(ParserRuleContext ctx, string name, bool fakeChild, Splitter splitter)
{
var text = AntlrUtils.GetSourceText(ctx);
var path = this.Inform(ctx, name, text, fakeChild);
var ranges = this.analyzer.GetRequiredInformRanges(path);
if (ranges.Count > 4)
{ // Benchmarks showed this to be the breakeven point. (see below)
var splitList = splitter.CreateSplitList(text);
foreach (var range in ranges)
{
var value = splitter.GetSplitRange(text, splitList, range);
if (value != null)
{
this.Inform(ctx, ctx, name + range, value, true);
}
}
}
else
{
foreach (var range in ranges)
{
var value = splitter.GetSplitRange(text, range);
if (value != null)
{
this.Inform(ctx, ctx, name + range, value, true);
}
}
}
}
/// <summary>
/// It walks to the next step in the tree.
/// If the next step is null returns the provided value or source text of the node as result.
/// </summary>
/// <param name="tree">The node tree.</param>
/// <param name="value">The provided value.</param>
/// <returns>The <see cref="WalkList.WalkResult"/>.</returns>
protected WalkList.WalkResult WalkNextStep(IParseTree tree, string value)
{
if (this.NextStep is null)
{
var res = value;
if (value is null)
{
res = AntlrUtils.GetSourceText((ParserRuleContext)tree);
}
if (this.Verbose)
{
Logger.Info($"{this.Logprefix} Final (implicit) step: {res}");
}
return(new WalkList.WalkResult(tree, res));
}
if (this.Verbose)
{
Logger.Info($"{this.Logprefix} Tree: >>>{AntlrUtils.GetSourceText((ParserRuleContext)tree)}<<<");
Logger.Info($"{this.Logprefix} Enter step({this.stepNr}): {this.NextStep}");
}
var result = this.NextStep.Walk(tree, value);
if (this.Verbose)
{
Logger.Info($"{this.Logprefix} Result: >>>{(result is null ? "null" : result.ToString())}<<<");
Logger.Info($"{this.Logprefix} Leave step({(result is null ? "-" : "+")}): {this.NextStep}");
}
return(result);
}
/// <summary>
/// If value is null returns the value of the text value of the node.
/// Otherwise it just return the provided value.
/// </summary>
/// <param name="tree">The node tree.</param>
/// <param name="value">The provided value.</param>
/// <returns>The value.</returns>
protected string GetActualValue(IParseTree tree, string value)
{
if (value is null)
{
return(AntlrUtils.GetSourceText((ParserRuleContext)tree));
}
return(value);
}
/// <summary>
/// Inform about a node.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="path">The name.</param>
/// <returns>The inform result.</returns>
private string Inform(IParseTree ctx, string path)
{
return(this.Inform(ctx, path, AntlrUtils.GetSourceText((ParserRuleContext)ctx)));
}