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package dotty.tools
package dottydoc
package staticsite
import java.util.{ Map => JMap }
import liqp.filters.Filter
/** Custom liquid template filters */
object filters {
/** Used to reverse arrays:
*
* ```html
* {% assign array = "1,2,3,4,5" | split: "," %}
* {{ array | reverse }}
* ```
*/
final class Reverse extends Filter("reverse") {
override def apply(value: Any, params: AnyRef*): AnyRef = {
val array = super.asArray(value)
if (array.length == 0) null
else array.reverse
}
}
/** Used to get the first element of arrays and strings:
*
* ```html
* {% assign array = "1,2,3,4,5" | split: "," %}
* {{ array | first }}
* ```
* The above snippet will render "1"
*/
final class First extends Filter("first") {
override def apply(value: Any, params: AnyRef*): AnyRef = value match {
case str: String if str.nonEmpty => str.charAt(0).toString
case xs: Array[String] if xs.nonEmpty => xs.head
case _ => null
}
}
}
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