added new context variables matcher

Author: bregydoc

matcher.go

@@ -5,11 +5,17 @@ type Match struct {
 	Confidence float64
 }
 
+type CMatch struct {
+	Name  string
+	Value interface{}
+}
+
 type Matcher struct {
-	Entity Match
-	Intent Match
-	AND    *Matcher
-	OR     *Matcher
+	Entity          Match
+	Intent          Match
+	ContextVariable CMatch
+	AND             *Matcher
+	OR              *Matcher
 }
 
 func (out *Output) Match(matcher *Matcher) bool {
@@ -26,6 +32,16 @@ func (out *Output) Match(matcher *Matcher) bool {
 		}
 	}
 
+	if out.Context.Variables != nil {
+		for varName, varValue := range out.Context.Variables {
+			if matcher.ContextVariable.Name == varName {
+				if matcher.ContextVariable.Value == varValue {
+					ok = true
+				}
+			}
+		}
+	}
+
 	if matcher.AND != nil {
 		if out.Match(matcher.AND) && ok {
 			ok = true

output_utils.go

@@ -1,6 +1,6 @@
 package neocortex
 
-func (out *Output) AddContextVariable(name string, value interface{}) *Output {
+func (out *Output) SetContextVariable(name string, value interface{}) *Output {
 	if out.Context.Variables == nil {
 		out.Context.Variables = map[string]interface{}{}
 	}