1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 package propertiesparser.parser;

    24 

    25 import java.util.regex.Pattern;

    26 

    27 /**

    28  * A line of text within the message file.

    29  * The lines form a doubly linked list for simple navigation.

    30  */

    31 public class MessageLine {

    32 

    33     static final Pattern emptyOrCommentPattern = Pattern.compile("( *#.*)?");

    34     static final Pattern typePattern = Pattern.compile("[-\\\\'A-Z\\.a-z ]+( \\([A-Za-z 0-9]+\\))?");

    35     static final Pattern infoPattern = Pattern.compile(String.format("# ([0-9]+: %s, )*[0-9]+: %s",

    36             typePattern.pattern(), typePattern.pattern()));

    37 

    38     public String text;

    39     MessageLine prev;

    40     MessageLine next;

    41 

    42     MessageLine(String text) {

    43         this.text = text;

    44     }

    45 

    46     public boolean isEmptyOrComment() {

    47         return emptyOrCommentPattern.matcher(text).matches();

    48     }

    49 

    50     public boolean isInfo() {

    51         return infoPattern.matcher(text).matches();

    52     }

    53 

    54     boolean hasContinuation() {

    55         return (next != null) && text.endsWith("\\");

    56     }

    57 

    58     MessageLine append(String text) {

    59         MessageLine l = new MessageLine(text);

    60         append(l);

    61         return l;

    62     }

    63 

    64     void append(MessageLine l) {

    65         assert l.prev == null && l.next == null;

    66         l.prev = this;

    67         l.next = next;

    68         if (next != null) {

    69             next.prev = l;

    70         }

    71         next = l;

    72     }

    73 }