1 files changed, 43 insertions, 0 deletions
diff --git a/extractor/grammar.cc b/extractor/grammar.cc
new file mode 100644
index 00000000..b45a8261
--- /dev/null
+++ b/extractor/grammar.cc
@@ -0,0 +1,43 @@
+#include "grammar.h"
+
+#include <iomanip>
+
+#include "rule.h"
+
+using namespace std;
+
+namespace extractor {
+
+Grammar::Grammar(const vector<Rule>& rules,
+                 const vector<string>& feature_names) :
+  rules(rules), feature_names(feature_names) {}
+
+vector<Rule> Grammar::GetRules() const {
+  return rules;
+}
+
+vector<string> Grammar::GetFeatureNames() const {
+  return feature_names;
+}
+
+ostream& operator<<(ostream& os, const Grammar& grammar) {
+  vector<Rule> rules = grammar.GetRules();
+  vector<string> feature_names = grammar.GetFeatureNames();
+  os << setprecision(12);
+  for (Rule rule: rules) {
+    os << "[X] ||| " << rule.source_phrase << " ||| "
+                     << rule.target_phrase << " |||";
+    for (size_t i = 0; i < rule.scores.size(); ++i) {
+      os << " " << feature_names[i] << "=" << rule.scores[i];
+    }
+    os << " |||";
+    for (auto link: rule.alignment) {
+      os << " " << link.first << "-" << link.second;
+    }
+    os << '\n';
+  }
+
+  return os;
+}
+
+} // namespace extractor