diff options
Diffstat (limited to 'vespalib/src/vespa/vespalib/fuzzy/dfa_matcher.h')
| -rw-r--r-- | vespalib/src/vespa/vespalib/fuzzy/dfa_matcher.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/vespalib/src/vespa/vespalib/fuzzy/dfa_matcher.h b/vespalib/src/vespa/vespalib/fuzzy/dfa_matcher.h index c69f414aae6..8b2597dd179 100644 --- a/vespalib/src/vespa/vespalib/fuzzy/dfa_matcher.h +++ b/vespalib/src/vespa/vespalib/fuzzy/dfa_matcher.h @@ -20,6 +20,12 @@ concept DfaMatcher = requires(T a, std::string u8str, std::vector<uint32_t> u32s // matching to have the expected semantics, the actual target string must be pre-lowercased. { a.is_cased() } -> std::same_as<bool>; + // Whether the matching is performed in prefix mode. In prefix mode, a source string is + // considered a match if it matches the target string at any point during DFA traversal. + // I.e. the source string "bananas" prefix-matched against the target (prefix) "ban" will + // be returned as a match with 0 edits. + { a.is_prefix() } -> std::same_as<bool>; + // Initial (starting) state of the DFA { a.start() } -> std::same_as<typename T::StateType>; |