diff options
Diffstat (limited to 'core/src/main/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetric.scala')
-rwxr-xr-x | core/src/main/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetric.scala | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/core/src/main/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetric.scala b/core/src/main/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetric.scala new file mode 100755 index 0000000..d06f774 --- /dev/null +++ b/core/src/main/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetric.scala @@ -0,0 +1,15 @@ +package com.rockymadden.stringmetric.phonetic + +import com.rockymadden.stringmetric.Metric.StringMetric + +case object MetaphoneMetric extends StringMetric[Boolean] { + import com.rockymadden.stringmetric.Alphabet.Alpha + + override def compare(a: Array[Char], b: Array[Char]): Option[Boolean] = + if (a.length == 0 || !(Alpha isSuperset a.head) || b.length == 0 || !(Alpha isSuperset b.head)) None + else MetaphoneAlgorithm.compute(a).filter(_.length > 0).flatMap { mp1 => + MetaphoneAlgorithm.compute(b).filter(_.length > 0).map(mp1.sameElements(_)) + } + + override def compare(a: String, b: String): Option[Boolean] = compare(a.toCharArray, b.toCharArray) +} |