src/Pure/General/base64.scala

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/General/base64.scala	Sat Jun 25 13:19:15 2022 +0200
@@ -0,0 +1,26 @@
+/*  Title:      Pure/General/base64.scala
+    Author:     Makarius
+
+Support for Base64 data encoding.
+*/
+
+package isabelle
+
+
+object Base64 {
+  def encode(a: Array[Byte]): String = java.util.Base64.getEncoder.encodeToString(a)
+  def decode(s: String): Array[Byte] = java.util.Base64.getDecoder.decode(s)
+
+
+  /* Scala functions in ML */
+
+  object Decode extends Scala.Fun_Bytes("Base64.decode") {
+    val here = Scala_Project.here
+    def apply(arg: Bytes): Bytes = Bytes.decode_base64(arg.text)
+  }
+
+  object Encode extends Scala.Fun_Bytes("Base64.encode") {
+    val here = Scala_Project.here
+    def apply(arg: Bytes): Bytes = Bytes(arg.encode_base64)
+  }
+}