From 9be9a5dde934577de314ce8ac6fb3eb0ba787503 Mon Sep 17 00:00:00 2001
From: redpony <redpony@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Tue, 22 Jun 2010 22:31:28 +0000
Subject: chris's crappy lda

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@6 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 gi/clda/src/dict.h | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 gi/clda/src/dict.h

(limited to 'gi/clda/src/dict.h')

diff --git a/gi/clda/src/dict.h b/gi/clda/src/dict.h
new file mode 100644
index 00000000..72e82e6d
--- /dev/null
+++ b/gi/clda/src/dict.h
@@ -0,0 +1,43 @@
+#ifndef DICT_H_
+#define DICT_H_
+
+#include <cassert>
+#include <cstring>
+#include <tr1/unordered_map>
+#include <string>
+#include <vector>
+
+#include <boost/functional/hash.hpp>
+
+#include "wordid.h"
+
+class Dict {
+ typedef std::tr1::unordered_map<std::string, WordID, boost::hash<std::string> > Map;
+ public:
+  Dict() : b0_("<bad0>") { words_.reserve(1000); }
+  inline int max() const { return words_.size(); }
+  inline WordID Convert(const std::string& word, bool frozen = false) {
+    Map::iterator i = d_.find(word);
+    if (i == d_.end()) {
+      if (frozen)
+        return 0;
+      words_.push_back(word);
+      d_[word] = words_.size();
+      return words_.size();
+    } else {
+      return i->second;
+    }
+  }
+  inline const std::string& Convert(const WordID& id) const {
+    if (id == 0) return b0_;
+    assert(id <= words_.size());
+    return words_[id-1];
+  }
+  void clear() { words_.clear(); d_.clear(); }
+ private:
+  const std::string b0_;
+  std::vector<std::string> words_;
+  Map d_;
+};
+
+#endif
-- 
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