diff options
Diffstat (limited to 'extractor/phrase_location.h')
| -rw-r--r-- | extractor/phrase_location.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/extractor/phrase_location.h b/extractor/phrase_location.h index e5f3cf08..91950e03 100644 --- a/extractor/phrase_location.h +++ b/extractor/phrase_location.h @@ -8,13 +8,25 @@ using namespace std; namespace extractor { +/** + * Structure containing information about the occurrences of a phrase in the + * source data. + * + * Every consecutive (disjoint) group of num_subpatterns entries in matchings + * vector encodes an occurrence of the phrase. The i-th entry of a group + * represents the start of the i-th subpattern of the phrase. If the phrase + * doesn't contain any nonterminals, then it may also be represented as the + * range in the suffix array which matches the phrase. + */ struct PhraseLocation { PhraseLocation(int sa_low = -1, int sa_high = -1); PhraseLocation(const vector<int>& matchings, int num_subpatterns); + // Checks if a phrase has any occurrences in the source data. bool IsEmpty() const; + // Returns the number of occurrences of a phrase in the source data. int GetSize() const; friend bool operator==(const PhraseLocation& a, const PhraseLocation& b); |