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• 3.1.0
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• HtmlScrub.scala

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teststate.domzipper.HtmlScrub.scala Maven / Gradle / Ivy

package teststate.domzipper

/**
 * Arbitrary preprocessor that [[DomZipper]] applies before returning any HTML text.
 */
case class HtmlScrub(run: String => String) {
  def >>(that: HtmlScrub): HtmlScrub =
    HtmlScrub(run andThen that.run)

  def <<(that: HtmlScrub): HtmlScrub =
    that >> this
}

object HtmlScrub {

  def replaceAll(regex: String, replacement: String): HtmlScrub = {
    val r = regex.r
    HtmlScrub(r.replaceAllIn(_, replacement))
  }

  def empty: HtmlScrub =
    HtmlScrub(identity)

  val removeComments: HtmlScrub =
    replaceAll("", "")

  def default = removeComments

  def joinLines: HtmlScrub =
    replaceAll(">[\n\r\t ]*\n[\n\r\t ]*<", "><") >> replaceAll("[\n\r\t ]*\n[\n\r\t ]*", " ")
}