Added form::startsWithVowelSound convenience method

2 files changed, 77 insertions, 51 deletions

@@ -1,26 +1,26 @@
 #include "form.h"
 #include <sqlite3.h>
 #include "filter.h"
-#include "pronunciation.h"
 #include "database.h"
 #include "query.h"
+#include "util.h"
 
 namespace verbly {
-  
+
   const object form::objectType = object::form;
-  
+
   const std::list<std::string> form::select = {"form_id", "form", "complexity", "proper"};
-  
+
   const field form::id = field::integerField(object::form, "form_id");
   const field form::text = field::stringField(object::form, "form");
   const field form::complexity = field::integerField(object::form, "complexity");
   const field form::proper = field::booleanField(object::form, "proper");
-  
+
   const field form::pronunciation = field::joinThrough(object::form, "form_id", object::pronunciation, "forms_pronunciations", "pronunciation_id");
-  
+
   const field form::lemmaJoin = field::joinField(object::form, "form_id", object::lemma);
   const field form::inflectionCategory = field::integerField("lemmas_forms", "category");
-  
+
   form::form(const database& db, sqlite3_stmt* row) : db_(&db), valid_(true)
   {
     id_ = sqlite3_column_int(row, 0);
@@ -28,7 +28,7 @@ namespace verbly {
     complexity_ = sqlite3_column_int(row, 2);
     proper_ = (sqlite3_column_int(row, 3) == 1);
   }
-  
+
   filter operator%=(form::inflection_field check, filter joinCondition)
   {
     return (form::lemmaJoin %= (joinCondition && (form::inflectionCategory == check.getCategory())));
@@ -40,14 +40,36 @@ namespace verbly {
     {
       throw std::domain_error("Bad access to uninitialized form");
     }
-    
+
     if (!initializedPronunciations_)
     {
       pronunciations_ = db_->pronunciations(pronunciation::form %= *this, false, -1).all();
       initializedPronunciations_ = true;
     }
-    
+
     return pronunciations_;
   }
-  
+
+  bool form::startsWithVowelSound() const
+  {
+    if (!valid_)
+    {
+      throw std::domain_error("Bad access to uninitialized form");
+    }
+
+    const std::vector<verbly::pronunciation>& pronunciations = getPronunciations();
+    if (!pronunciations.empty())
+    {
+      return std::any_of(std::begin(pronunciations), std::end(pronunciations), [] (const verbly::pronunciation& p) {
+        std::cout << "phonemes: " << implode(std::begin(p.getPhonemes()), std::end(p.getPhonemes()), ",") << std::endl;
+        return p.getPhonemes().front().find_first_of("012") != std::string::npos;
+      });
+    } else {
+      // If the word is not in CMUDICT, fall back to checking whether the first letter is a vowel.
+      // Not perfect but will work in most cases.
+      char ch = std::tolower(text_.front());
+      return (ch == 'a') || (ch == 'e') || (ch == 'i') || (ch == 'o') || (ch == 'u');
+    }
+  }
+
 };
@@ -6,144 +6,148 @@
 #include <string>
 #include <stdexcept>
 #include "field.h"
+#include "pronunciation.h"
 #include "filter.h"
 
 struct sqlite3_stmt;
 
 namespace verbly {
-  
-  class pronunciation;
+
   class database;
-  
+
   class form {
   public:
-    
+
     // Default constructor
-    
+
     form() = default;
-    
+
     // Construct from database
-    
+
     form(const database& db, sqlite3_stmt* row);
-    
+
     // Accessors
-    
+
     operator bool() const
     {
       return valid_;
     }
-    
+
     int getId() const
     {
       if (!valid_)
       {
         throw std::domain_error("Bad access to uninitialized form");
       }
-      
+
       return id_;
     }
-    
+
     std::string getText() const
     {
       if (!valid_)
       {
         throw std::domain_error("Bad access to uninitialized form");
       }
-      
+
       return text_;
     }
-    
+
     int getComplexity() const
     {
       if (!valid_)
       {
         throw std::domain_error("Bad access to uninitialized form");
       }
-      
+
       return complexity_;
     }
-    
+
     bool isProper() const
     {
       if (!valid_)
       {
         throw std::domain_error("Bad access to uninitialized form");
       }
-      
+
       return proper_;
     }
-    
+
     const std::vector<pronunciation>& getPronunciations() const;
-    
+
+    // Convenience
+
+    bool startsWithVowelSound() const;
+
     // Type info
-    
+
     static const object objectType;
-    
+
     static const std::list<std::string> select;
-    
+
     // Query fields
-    
+
     static const field id;
     static const field text;
     static const field complexity;
     static const field proper;
-    
+
     operator filter() const
     {
       if (!valid_)
       {
         throw std::domain_error("Bad access to uninitialized form");
       }
-      
+
       return (id == id_);
     }
-    
+
     // Relationships to other objects
-    
+
     static const field pronunciation;
-    
+
     class inflection_field {
     public:
-      
+
       inflection_field(inflection category) : category_(category)
       {
       }
-      
+
       const inflection getCategory() const
       {
         return category_;
       }
       
     private:
-      
+
       const inflection category_;
     };
-    
+
     static const inflection_field lemma(inflection category)
     {
       return inflection_field(category);
     }
-    
+
     friend filter operator%=(form::inflection_field check, filter joinCondition);
-    
+
   private:
     bool valid_ = false;
-    
+
     int id_;
     std::string text_;
     int complexity_ ;
     bool proper_;
-    
+
     const database* db_;
-    
+
     mutable bool initializedPronunciations_ = false;
     mutable std::vector<class pronunciation> pronunciations_;
-    
+
     static const field lemmaJoin;
     static const field inflectionCategory;
-    
+
   };
-  
+
 };
 
 #endif /* end of include guard: FORM_H_3A6C962C */