Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    public static String $$truncate(String str, int maxLen, boolean doAddEllipsis) {

        if (str.length() <= maxLen) {
            return str; // no need to truncate
        }

        // If doAddEllipsis, either reduce maxLen to compensate, or else if maxLen is too small, just
        // turn off doAddEllipsis.
        if (doAddEllipsis) {
            if (maxLen > 3) {
                maxLen -= 3;
            } else {
                doAddEllipsis = false;
            }
        }

        // Make sure truncating at maxLen doesn't cut up a unicode surrogate pair.
        if (Character.isHighSurrogate(str.charAt(maxLen - 1)) && Character.isLowSurrogate(str.charAt(maxLen))) {
            maxLen -= 1;
        }

        // Truncate.
        str = str.substring(0, maxLen);

        // Add ellipsis.
        if (doAddEllipsis) {
            str += "...";
        }

        return str;
    }
}