Android String Shorten curtail(String str, int size, String tail)

Description

curtail

License

Apache License

Declaration

public static String curtail(String str, int size, String tail) 

Method Source Code

//package com.java2s;
/**/*from w  w w  .jav  a  2  s  .  c  om*/
 * Copyright 2013 ??????
 *
 * 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 final String EMPTY = "";

    public static String curtail(String str, int size, String tail) {
        if (str == null) {
            return null;
        }
        int strLen = str.length();
        int tailLen = (tail != null) ? tail.length() : 0;
        int maxLen = size - tailLen;
        int curLen = 0;
        int index = 0;
        for (; index < strLen && curLen < maxLen; index++) {
            if (Character.getType(str.charAt(index)) == Character.OTHER_LETTER) {
                curLen++;
            }
            curLen++;
        }

        if (index == strLen) {
            return str;
        } else {
            StringBuilder result = new StringBuilder();
            result.append(str.substring(0, index));
            if (tail != null) {
                result.append(tail);
            }
            return result.toString();
        }
    }

    public static String substring(String str, int beginIndex) {
        if (str == null) {
            return null;
        }

        if (beginIndex < 0) {
            return EMPTY;
        }

        if (beginIndex > str.length()) {
            return EMPTY;
        }

        return str.substring(beginIndex);
    }

    public static String substring(String str, int beginIndex, int endIndex) {
        if (str == null) {
            return null;
        }

        if (beginIndex < 0 || endIndex < 0) {
            return EMPTY;
        }

        if (endIndex > str.length()) {
            endIndex = str.length();
        }

        if (beginIndex > endIndex || beginIndex > str.length()) {
            return EMPTY;
        }

        return str.substring(beginIndex, endIndex);
    }
}

Related

1. addEllipsis(String src, String ellipsis, int maxLength)
2. toLength(String str, int length)
3. truncate(String text, int length)
4. truncateAt(String string, int length)
5. truncateString(String resource, String startTag, String endTag)
6. truncateAtMaxLength(String source, int maxLength, boolean addEllipsis)
7. shortenString(String str, int length)
8. ellipsizeString(String string, int limit)