1 files changed, 0 insertions, 46 deletions
diff --git a/extractor/matching_comparator.cc b/extractor/matching_comparator.cc
deleted file mode 100644
index 03db95c0..00000000
--- a/extractor/matching_comparator.cc
+++ /dev/null
@@ -1,46 +0,0 @@
-#include "matching_comparator.h"
-
-#include "matching.h"
-#include "vocabulary.h"
-
-MatchingComparator::MatchingComparator(int min_gap_size, int max_rule_span) :
-    min_gap_size(min_gap_size), max_rule_span(max_rule_span) {}
-
-int MatchingComparator::Compare(const Matching& left,
-                                const Matching& right,
-                                int last_chunk_len,
-                                bool offset) const {
-  if (left.sentence_id != right.sentence_id) {
-    return left.sentence_id < right.sentence_id ? -1 : 1;
-  }
-
-  if (left.positions.size() == 1 && right.positions.size() == 1) {
-    // The prefix and the suffix must be separated by a non-terminal, otherwise
-    // we would be doing a suffix array lookup.
-    if (right.positions[0] - left.positions[0] <= min_gap_size) {
-      return 1;
-    }
-  } else if (offset) {
-    for (size_t i = 1; i < left.positions.size(); ++i) {
-      if (left.positions[i] != right.positions[i - 1]) {
-        return left.positions[i] < right.positions[i - 1] ? -1 : 1;
-      }
-    }
-  } else {
-    if (left.positions[0] + 1 != right.positions[0]) {
-      return left.positions[0] + 1 < right.positions[0] ? -1 : 1;
-    }
-    for (size_t i = 1; i < left.positions.size(); ++i) {
-      if (left.positions[i] != right.positions[i]) {
-        return left.positions[i] < right.positions[i] ? -1 : 1;
-      }
-    }
-  }
-
-  if (right.positions.back() + last_chunk_len - left.positions.front() >
-      max_rule_span) {
-    return -1;
-  }
-
-  return 0;
-}