From 1aac806af7785ab440d300ca5cfa8833e3ed61d3 Mon Sep 17 00:00:00 2001
From: Chris Dyer <redpony@gmail.com>
Date: Fri, 18 Dec 2009 01:27:19 -0500
Subject: add support for freezing the feature set to a user-specified list,
 even if feature detectors create additional features

---
 decoder/dict.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'decoder/dict.h')

diff --git a/decoder/dict.h b/decoder/dict.h
index bae9debe..0cbc9ff0 100644
--- a/decoder/dict.h
+++ b/decoder/dict.h
@@ -16,9 +16,11 @@ class Dict {
  public:
   Dict() : b0_("<bad0>") { words_.reserve(1000); }
   inline int max() const { return words_.size(); }
-  inline WordID Convert(const std::string& word) {
+  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();
-- 
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