core/source/main/scala/com/rockymadden/stringmetric/filter/AsciiLetterOnlyFilter.scala


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package com.rockymadden.stringmetric.filter

import com.rockymadden.stringmetric.StringFilter

/** Ensures only ASCII letters matter. */
trait AsciiLetterOnlyFilter extends StringFilter {
	abstract override def filter(charArray: Array[Char]): Array[Char] =
		super.filter(charArray.filter(c => ((c >= 65 && c <= 90 ) || (c >= 97 && c <= 122))))

	abstract override def filter(string: String): String = filter(string.toCharArray).mkString
}