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-rw-r--r--extractor/data_array.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/extractor/data_array.h b/extractor/data_array.h
index c5dc8a26..b96901d1 100644
--- a/extractor/data_array.h
+++ b/extractor/data_array.h
@@ -59,6 +59,14 @@ class DataArray {
// Returns the original word at the specified position.
virtual string GetWordAtIndex(int index) const;
+ // Returns the substring of word ids starting at the specified position and
+ // having the specified length.
+ virtual vector<int> GetWordIds(int start_index, int size) const;
+
+ // Returns the substring of words starting at the specified position and
+ // having the specified length.
+ virtual vector<string> GetWords(int start_index, int size) const;
+
// Returns the size of the data array.
virtual int GetSize() const;