Each crlf is turned into an lf to deal with MSWindows, and then each remaining cr is turned into an lf to deal with Mac. - Java java.lang

Java examples for java.lang:String New Line

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Description

Each crlf is turned into an lf to deal with MSWindows, and then each remaining cr is turned into an lf to deal with Mac.

Demo Code


//package com.java2s;

public class Main {
    public static void main(String[] argv) {
        String self = "java2s.com";
        System.out.println(canonical(self));
    }/* www  .  ja va2 s .  c o  m*/

    /**
     * Each crlf is turned into an lf to deal with MSWindows, and then each
     * remaining cr is turned into an lf to deal with Mac.
     */
    static public String canonical(String self) {
        if (-1 == self.indexOf('\r')) {
            return self;
        } else {
            return replaceAll(self, "\r\n", "\n").replace('\r', '\n');
        }
    }

    /**
     * The string-based replaceAll() supplements the character-based
     * replace().
     *
     * @see String#replace
     */
    static public String replaceAll(String self, String oldStr,
            String newStr) {
        StringBuffer buf = new StringBuffer(self.length() * 2);
        int oldLen = oldStr.length();
        int p1 = 0;
        for (int p2 = self.indexOf(oldStr); -1 != p2; p2 = self.indexOf(
                oldStr, p1)) {
            buf.append(self.substring(p1, p2));
            buf.append(newStr);
            p1 = p2 + oldLen;
        }
        buf.append(self.substring(p1));
        return buf.toString();
    }
}

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