package com.vladsch.flexmark.util.mappers;

import com.sun.xml.internal.bind.v2.model.core.ID;

import java.util.Objects;
import java.util.function.IntUnaryOperator;

public interface CharMapper {
    CharMapper IDENTITY = t -> t;

    /**
     * Map characters
     *
     * @param codePoint      code point
     * @return       mapped character
     */
    char map(char codePoint);

    /**
     * Returns a composed operator that first applies the {@code before}
     * operator to its input, and then applies this operator to the result.
     * If evaluation of either operator throws an exception, it is relayed to
     * the caller of the composed operator.
     *
     * @param before the operator to apply before this operator is applied
     * @return a composed operator that first applies the {@code before}
     * operator and then applies this operator
     * @throws NullPointerException if before is null
     *
     * @see #andThen(CharMapper)
     */
    default CharMapper compose(CharMapper before) {
        Objects.requireNonNull(before);
        return before == IDENTITY ? this : (char v) -> map(before.map(v));
    }

    /**
     * Returns a composed operator that first applies this operator to
     * its input, and then applies the {@code after} operator to the result.
     * If evaluation of either operator throws an exception, it is relayed to
     * the caller of the composed operator.
     *
     * @param after the operator to apply after this operator is applied
     * @return a composed operator that first applies this operator and then
     * applies the {@code after} operator
     * @throws NullPointerException if after is null
     *
     * @see #compose(CharMapper)
     */
    default CharMapper andThen(CharMapper after) {
        Objects.requireNonNull(after);
        return after == IDENTITY ? this : (char t) -> after.map(map(t));
    }

    /**
     * Returns a unary operator that always returns its input argument.
     *
     * @return a unary operator that always returns its input argument
     */
    static CharMapper identity() {
        return IDENTITY;
    }

}

@@ -48,121 +48,25 @@
 ort 
-com.sun.xml.internal.bind.v2.model.core.ID;%0A%0Aimport java.util.Objects;%0Aimport java.util.function.IntUnaryOperator
+java.util.Objects
 ;%0A%0Ap
@@ -190,21 +190,16 @@
 dePoint 
-     
 code poi
@@ -216,22 +216,16 @@
 @return 
-      
 mapped c
@@ -704,32 +704,40 @@
 e before%7D%0A     *
+        
  operator and th
@@ -807,39 +807,32 @@
  before is null%0A
-     *%0A
      * @see #and
@@ -1471,16 +1471,24 @@
 n%0A     *
+        
  applies
@@ -1568,23 +1568,16 @@
 is null%0A
-     *%0A
      * @
@@ -2005,17 +2005,16 @@
 ENTITY;%0A
+
     %7D%0A
-%0A
 %7D%0A

remove unused imports