Added "requires plural form" noun query predicate

2 files changed, 16 insertions, 0 deletions

@@ -76,6 +76,13 @@ namespace verbly {
     return *this;
   }
   
+  noun_query& noun_query::requires_plural_form()
+  {
+    _requires_plural_form = true;
+    
+    return *this;
+  }
+  
   noun_query& noun_query::with_complexity(int _arg)
   {
     _with_complexity = _arg;
@@ -484,6 +491,11 @@ namespace verbly {
       conditions.push_back(cond);
     }
     
+    if (_requires_plural_form)
+    {
+      conditions.push_back("plural IS NOT NULL");
+    }
+    
     if (!_with_prefix.empty())
     {
       std::function<std::string (filter<std::string>, bool)> recur = [&] (filter<std::string> f, bool notlogic) -> std::string {
@@ -17,6 +17,8 @@ namespace verbly {
       noun_query& with_prefix(filter<std::string> _f);
       noun_query& with_suffix(filter<std::string> _f);
       
+      noun_query& requires_plural_form();
+      
       noun_query& with_complexity(int _arg);
       
       noun_query& is_hypernym();
@@ -93,6 +95,8 @@ namespace verbly {
       
       int _with_complexity = unlimited;
       
+      bool _requires_plural_form = false;
+      
       bool _is_hypernym = false;
       filter<noun> _hypernym_of;
       filter<noun> _full_hypernym_of;