Android String End of Line Convert convertEOLToLF(String input)

Description

Converts any instances of "\r" or "\r\n" style EOLs into "\n" (Line Feed).

License

Apache License

Declaration

public static String convertEOLToLF(String input) 

Method Source Code

//package com.java2s;
/**/*from w  w  w  .j  a va 2  s.  c  o m*/
 * Copyright (c) 2000, 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 {
    /**
     * Converts any instances of "\r" or "\r\n" style EOLs into "\n" (Line Feed).
     */
    public static String convertEOLToLF(String input) {
        StringBuilder res = new StringBuilder(input.length());
        char[] s = input.toCharArray();
        int from = 0;
        final int end = s.length;
        for (int i = 0; i < end; i++) {
            if (s[i] == '\r') {
                res.append(s, from, i - from);
                res.append('\n');
                if (i + 1 < end && s[i + 1] == '\n') {
                    i++;
                }

                from = i + 1;
            }
        }

        if (from == 0) { // no \r!
            return input;
        }

        res.append(s, from, end - from);
        return res.toString();
    }

    /**
     * @return a string representation of the given native array.
     */
    public static String toString(float[] iArray) {
        if (iArray == null) {
            return "NULL";
        }

        StringBuilder buffer = new StringBuilder();
        buffer.append("[");
        for (int i = 0; i < iArray.length; i++) {
            buffer.append(iArray[i]);
            if (i != (iArray.length - 1)) {
                buffer.append(", ");
            }
        }
        buffer.append("]");
        return buffer.toString();
    }

    /**
     * @return a string representation of the given native array.
     */
    public static String toString(long[] iArray) {
        if (iArray == null) {
            return "NULL";
        }

        StringBuilder buffer = new StringBuilder();
        buffer.append("[");
        for (int i = 0; i < iArray.length; i++) {
            buffer.append(iArray[i]);
            if (i != (iArray.length - 1)) {
                buffer.append(", ");
            }
        }
        buffer.append("]");
        return buffer.toString();
    }

    /**
     * @return a string representation of the given native array
     */
    public static String toString(int[] iArray) {
        if (iArray == null) {
            return "NULL";
        }

        StringBuilder buffer = new StringBuilder();
        buffer.append("[");
        for (int i = 0; i < iArray.length; i++) {
            buffer.append(iArray[i]);
            if (i != (iArray.length - 1)) {
                buffer.append(", ");
            }
        }
        buffer.append("]");
        return buffer.toString();
    }

    /**
     * @return a string representation of the given array.
     */
    public static String toString(String[] iArray) {
        if (iArray == null) {
            return "NULL";
        }

        StringBuilder buffer = new StringBuilder();
        buffer.append("[");
        for (int i = 0; i < iArray.length; i++) {
            buffer.append("'").append(iArray[i]).append("'");
            if (i != iArray.length - 1) {
                buffer.append(", ");
            }
        }
        buffer.append("]");

        return buffer.toString();
    }

    /**
     * Returns the string, in single quotes, or "NULL". Intended only for
     * logging.
     *
     * @param s the string
     * @return the string, in single quotes, or the string "null" if it's null.
     */
    public static String toString(String s) {
        if (s == null) {
            return "NULL";
        } else {
            return new StringBuilder(s.length() + 2).append("'").append(s)
                    .append("'").toString();
        }
    }

    /**
     * @return a string representation of the given native array
     */
    public static String toString(int[][] iArray) {
        if (iArray == null) {
            return "NULL";
        }

        StringBuilder buffer = new StringBuilder();
        buffer.append("[");
        for (int i = 0; i < iArray.length; i++) {
            buffer.append("[");
            for (int j = 0; j < iArray[i].length; j++) {
                buffer.append(iArray[i][j]);
                if (j != (iArray[i].length - 1)) {
                    buffer.append(", ");
                }
            }
            buffer.append("]");
            if (i != iArray.length - 1) {
                buffer.append(" ");
            }
        }
        buffer.append("]");
        return buffer.toString();
    }

    /**
     * @return a string representation of the given native array.
     */
    public static String toString(long[][] iArray) {
        if (iArray == null) {
            return "NULL";
        }

        StringBuilder buffer = new StringBuilder();
        buffer.append("[");
        for (int i = 0; i < iArray.length; i++) {
            buffer.append("[");
            for (int j = 0; j < iArray[i].length; j++) {
                buffer.append(iArray[i][j]);
                if (j != (iArray[i].length - 1)) {
                    buffer.append(", ");
                }
            }
            buffer.append("]");
            if (i != iArray.length - 1) {
                buffer.append(" ");
            }
        }
        buffer.append("]");
        return buffer.toString();
    }

    /**
     * @return a String representation of the given object array.
     * The strings are obtained by calling toString() on the
     * underlying objects.
     */
    public static String toString(Object[] obj) {
        if (obj == null) {
            return "NULL";
        }
        StringBuilder tmp = new StringBuilder();
        tmp.append("[");
        for (int i = 0; i < obj.length; i++) {
            tmp.append(obj[i].toString());
            if (i != obj.length - 1) {
                tmp.append(",");
            }
        }
        tmp.append("]");
        return tmp.toString();
    }
}

Related

1. rmvEnter(String input)
2. removeEnd(String str, String remove)
3. newLineToBr(String s)
4. filterEnter(String str)