/// <summary>
/// Initializes a new instance of the <see cref="Expander"/> class.
/// </summary>
/// <param name="templates">Template list.</param>
/// <param name="expressionParser">Given expression parser.</param>
/// <param name="opt">Options for LG. including strictMode, replaceNull and lineBreakStyle.</param>
public Expander(List <Template> templates, ExpressionParser expressionParser, EvaluationOptions opt = null)
{
Templates = templates;
TemplateMap = templates.ToDictionary(x => x.Name);
_lgOptions = opt;
_expressionParser = expressionParser;
// generate a new customized expression parser by injecting the template as functions
ExpanderExpressionParser = new ExpressionParser(CustomizedEvaluatorLookup(expressionParser.EvaluatorLookup, true));
EvaluatorExpressionParser = new ExpressionParser(CustomizedEvaluatorLookup(expressionParser.EvaluatorLookup, false));
}
/// <summary>
/// Expand a template with given name and scope.
/// Return all possible responses instead of random one.
/// </summary>
/// <param name="templateName">Template name to be evaluated.</param>
/// <param name="scope">The state visible in the evaluation.</param>
/// <param name="opt">The evaluation option for current expander.</param>
/// <returns>Expand result.</returns>
public IList <object> ExpandTemplate(string templateName, object scope = null, EvaluationOptions opt = null)
{
CheckErrors();
var evalOpt = opt ?? LgOptions;
var expander = new Expander(AllTemplates.ToList(), ExpressionParser, evalOpt);
return(expander.ExpandTemplate(templateName, scope));
}
/// <summary>
/// Initializes a new instance of the <see cref="Evaluator"/> class.
/// </summary>
/// <param name="templates">Template list.</param>
/// <param name="expressionParser">Expression parser.</param>
/// <param name="opt">Options for LG. </param>
public Evaluator(List <Template> templates, ExpressionParser expressionParser, EvaluationOptions opt = null)
{
Templates = templates;
TemplateMap = templates.ToDictionary(x => x.Name);
_lgOptions = opt;
_cachedResult.Clear();
// generate a new customized expression parser by injecting the template as functions
ExpressionParser = new ExpressionParser(CustomizedEvaluatorLookup(expressionParser.EvaluatorLookup));
}
public EvaluationOptions(EvaluationOptions opt)
{
this.StrictMode = opt.StrictMode;
this.NullSubstitution = opt.NullSubstitution;
this.LineBreakStyle = opt.LineBreakStyle;
}
/// <summary>
/// Expands a template with given name and scope.
/// Return all possible responses instead of random one.
/// </summary>
/// <param name="templateName">Template name to be evaluated.</param>
/// <param name="scope">State visible in the evaluation.</param>
/// <param name="opt">EvaluationOptions in expanding a template.</param>
/// <returns>Expanded result.</returns>
public IList <object> ExpandTemplate(string templateName, object scope = null, EvaluationOptions opt = null)
{
CheckErrors();
var evalOpt = opt != null?opt.Merge(LgOptions) : LgOptions;
var expander = new Expander(this, evalOpt);
return(expander.ExpandTemplate(templateName, scope));
}
