Scaffolding for the VariableStrings which doesn't do anything yet - would need to parse the strings and match against them in the matchers

Author: AngledLuffa

src/edu/stanford/nlp/semgraph/semgrex/NodePattern.java

@@ -49,7 +49,7 @@ public class NodePattern extends SemgrexPattern  {
   SemgrexPattern child;
   // specifies the groups in a regex that are captured as
   // matcher-global string variables
-  private List<Pair<Integer, String>> variableGroups;
+  private final List<Pair<Integer, String>> variableGroups;
 
   public NodePattern(GraphRelation r, boolean negDesc,
                      NodeAttributes attrs, boolean isLink, String name) {

src/edu/stanford/nlp/semgraph/semgrex/SemgrexMatch.java

@@ -81,6 +81,10 @@ public SemanticGraphEdge getEdge(String name) {
     return namesToEdges.get(name);
   }
 
+  public String getVariableString(String var) {
+    return variableStrings.getString(var);
+  }
+
   public String toString() {
     StringBuilder builder = new StringBuilder();
     builder.append(matchedPattern);

src/edu/stanford/nlp/semgraph/semgrex/SemgrexMatcher.java

@@ -77,6 +77,7 @@ public void reset() {
     namesToNodes.clear();
     namesToRelations.clear();
     namesToEdges.clear();
+    variableStrings.reset();
   }
 
   /**