core/source/core/scala/com/rockymadden/stringmetric/filter/AsciiLetterNumberFilter.scala


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package com.rockymadden.stringmetric.filter

import com.rockymadden.stringmetric.StringFilter

/** Ensures ASCII letters and numbers do not matter. */
trait AsciiLetterNumberFilter extends StringFilter {
	abstract override def filter(charArray: Array[Char]): Array[Char] =
		super.filter(
			charArray.filter(c =>
				!((c >= 48 && c <= 57 ) || (c >= 65 && c <= 90 ) || (c >= 97 && c <= 122))
			)
		)

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