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package com.rockymadden.stringmetric.cli.similarity
import com.rockymadden.stringmetric.cli._
import com.rockymadden.stringmetric.similarity.JaccardMetric
case object jaccardmetric extends Command(
(opts) =>
"Compares the similarity of two strings using the Jaccard coefficient." + Ls + Ls +
"Syntax:" + Ls +
Tab + "jaccardmetric [Options] string1 string2..." + Ls + Ls +
"Options:" + Ls +
Tab + "-h, --help" + Ls +
Tab + Tab + "Outputs description, syntax, and opts." +
Tab + "--n" + Ls +
Tab + Tab + "The n-gram size.",
(opts) => opts.contains('dashless) && (opts('dashless): Array[String]).length == 2
&& opts.contains('n) && (opts('n): Int) >= 1,
(opts) => {
val strings: Array[String] = opts('dashless)
val n: Int = opts('n)
JaccardMetric(n).compare(strings(0), strings(1))
.map(_.toString)
.getOrElse("not comparable")
}
)
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